Journal articles: 'Biomedical textile'

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Li, Yi, Xin Zhang, and BaoAn Ying. "On textile biomedical engineering." Science China Technological Sciences 62, no. 6 (May 23, 2019): 945–57. http://dx.doi.org/10.1007/s11431-018-9504-5.

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Bhavani, S., T. Shanmuganantham, N. Mouni, and G. Jaydeep Sai. "Textile UWB Antennas for Biomedical Applications." IRO Journal on Sustainable Wireless Systems 4, no. 3 (September 15, 2022): 173–84. http://dx.doi.org/10.36548/jsws.2022.3.004.

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In recent years, there has been an increase in worry about the security of Wireless Body Area Network systems, particularly worn electronics such as military, entertainment, and medical devices. The ability to communicate wirelessly from or to the body via conformal and wearable antennas is a major characteristic of modern wearable electronics. In this work, circular ring and fractal antennas are designed using a wearable substrate of denim with a dielectric constant of 1.7. Design and simulations are carried out in the CST Microwave environment and different performance characteristics of the antenna are examined in free space and on body medical applications.

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Su, Po-Cheng, Ya-Hsin Hsueh, Ming-Ta Ke, Jyun-Jhe Chen, and Ping-Chen Lai. "Noncontact ECG Monitoring by Capacitive Coupling of Textiles in a Chair." Journal of Healthcare Engineering 2021 (June 16, 2021): 1–8. http://dx.doi.org/10.1155/2021/6698567.

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Some patients are uncomfortable with being wired to a device to have their heart activity measured. Accordingly, this study adopts a noncontact electrocardiogram (ECG) measurement system using coupled capacitance in a conductive textile. The textiles can be placed on a chair and are able to record some of the patient’s heart data. Height and distance between the conductive textile electrodes were influential when trying to obtain an optimal ECG signal. A soft and highly conductive textile was used as the electrode, and clothing was regarded as capacitance insulation. The conductive textile and body were treated as the two electrode plates. This study found that placing the two conductive textiles at the same height provided better data than different heights. The system also enabled identifying the P, Q, R, S, and T waves of the ECG signal and eliminated unnecessary noise successfully.

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Iyer, Shriya V., Jyothis George, Suhasini Sathiyamoorthy, Rohini Palanisamy, Abhijit Majumdar, and Pandiyarasan Veluswamy. "Pertinence of Textile-Based Energy Harvesting System for Biomedical Applications." Journal of Nanomaterials 2022 (August 26, 2022): 1–13. http://dx.doi.org/10.1155/2022/7921479.

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In the era of technological advancements in healthcare and medicine, monitoring of health status and treatment conditions has been made convenient by the development of various categories and forms of biomedical sensors. They have been incorporated within watches and mobile phones and can be worn as stand-alone based on user preference. However, the longevity, cost, and sustainable functionality have impeded its adoption within the population. In this review article, we have introduced a concept of bridging the textile industry and biomedical sensors to yield a self-powered biomedical system that operates on textile-based energy harvesters. Textile-based wearable systems have been compared to E-skin-based systems. The energy released by different actions in human motion has been quantified along with insights on its effective utilization in the form of energy harvesters in the subsequent sections. Information on designing such a textile-based system with schematics has been done. This review focuses on the development and connection of textile-based energy harvesters to existing models of biomedical sensors.

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Zhu, Chenkai, Ifty Ahmed, Andrew Parsons, Jinsong Liu, and Xiaoling Liu. "The mechanical property, degradation and cytocompatibility analysis of novel phosphate glass fiber textiles." Textile Research Journal 89, no. 16 (November 6, 2018): 3280–90. http://dx.doi.org/10.1177/0040517518809052.

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Phosphate glass fibers have been widely considered as potential biomedical materials for orthopedical application due to their full degradability and excellent cytocompatibility. In this study, phosphate-based glass fibers were drawn from the glass system 48P2O5-12B2O3-14CaO-20MgO-1Na2O-5Fe2O3, via a melt-drawn spinning process and then woven into textile fabric using a small lab-scale inkle-loom. The annealing treatment was applied to both fibers and textiles with 1-hour heat treatment at 540℃, which was 10℃ above the glass transition temperature. An increase in Young's modulus was observed for the single filament fibers and a decrease in tensile strength with annealing treatment. During the degradation period, the tensile strength of non-annealed fibers presented a decrease by day 28, whilst annealed fibers had increased by day 7, then decreased by day 28, which was suggested to be due to the peeling effect observed on the surface of the fibers. The cytocompatibility of the textile fabric with annealing treatment (A-textile) and the non-annealed fabric (N-textile) was characterized via seeding of MG63 cells. Higher metabolic activity and DNA concentration were obtained for the A-textile samples when compared to the N-textile, which was suggested to be due to the lower dissolution rate of the A-textile resulting in fewer ions leaching into the solution. The phosphate glass fiber textiles investigated in this study have shown potential application as bioresorbable composites reinforcement for orthopedic treatment.

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Toskas, Georgios, Ronny Brünler, Heike Hund, Rolf-Dieter Hund, Martin Hild, Dilibaier Aibibu, and Chokri Cherif. "Pure chitosan microfibres for biomedical applications." Autex Research Journal 13, no. 4 (December 31, 2013): 134–40. http://dx.doi.org/10.2478/v10304-012-0041-5.

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Abstract Due to its excellent biocompatibility, Chitosan is a very promising material for degradable products in biomedical applications. The development of pure chitosan microfibre yarn with defined size and directional alignment has always remained a critical research objective. Only fibres of consistent quality can be manufactured into textile structures, such as nonwovens and knitted or woven fabrics. In an adapted, industrial scale wet spinning process, chitosan fibres can now be manufactured at the Institute of Textile Machinery and High Performance Material Technology at TU Dresden (ITM). The dissolving system, coagulation bath, washing bath and heating/drying were optimised in order to obtain pure chitosan fibres that possess an adequate tenacity. A high polymer concentration of 8.0–8.5% wt. is realised by regulating the dope-container temperature. The mechanical tests show that the fibres present very high average tensile force up to 34.3 N, tenacity up to 24.9 cN/tex and Young’s modulus up to 20.6 GPa, values much stronger than that of the most reported chitosan fibres. The fibres were processed into 3D nonwoven structures and stable knitted and woven textile fabrics. The mechanical properties of the fibres and fabrics enable its usage as textile scaffolds in regenerative medicine. Due to the osteoconductive properties of chitosan, promising fields of application include cartilage and bone tissue engineering.

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Allehyani, Esam S., Yaaser Q. Almulaiky, Sami A. Al-Harbi, and Reda M. El-Shishtawy. "In Situ Coating of Polydopamine-AgNPs on Polyester Fabrics Producing Antibacterial and Antioxidant Properties." Polymers 14, no. 18 (September 10, 2022): 3794. http://dx.doi.org/10.3390/polym14183794.

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Nanoparticles are increasingly utilized as coating materials to improve the properties of polyester textiles. In this work, polyester textiles were successfully fabricated, with hydrazide groups serving as ligands for the entrapment of sliver ions and subsequent reduction to AgNPs. Polydopamine (PDA) was used in this work to impart antibacterial and antioxidant properties to the polyester textiles through its phenolic hydroxyl groups, which can convert silver ions into AgNPs. Moreover, glucose was used as a reducing agent to create AgNPs-loaded polyester hydrazide. ATR-FTIR, SEM, EDX, thermogravimetric analysis (TGA), and tensile strength were used to characterize the pristine polyester, the polyester hydrazide, the PDA-coated AgNP-loaded polyester hydrazide and the AgNP-loaded polyester hydrazide. A broth test was also used to investigate the textile’s antimicrobial activities against Escherichia coli and Staphylococcus aureus. Overall, the composite nanocoating with PDA-AgNPs demonstrated good tensile strength and antioxidant and antibacterial characteristics, implying the practicality of PDA-AgNPs coating polyester for biomedical textile applications.

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Javaid, Sana, Azhar Mahmood, Habib Nasir, Mudassir Iqbal, Naveed Ahmed, and Nasir M. Ahmad. "Layer-By-Layer Self-Assembled Dip Coating for Antifouling Functionalized Finishing of Cotton Textile." Polymers 14, no. 13 (June 22, 2022): 2540. http://dx.doi.org/10.3390/polym14132540.

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The fouling of surfaces such as textiles is a major health challenge, and there is a continuous effort to develop materials and processes to overcome it. In consideration of this, this study regards the development of antifouling functional nanoencapsulated finishing for the cotton textile fabric by employing a layer-by-layer dip coating technique. Antifouling textile finishing was formulated by inducing the nanoencapsulation of the antifouling functional group inside the hydrophobic polymeric shell. Cotton fabric was taken as a substrate to incorporate antibacterial functionality by alternatively fabricating multilayers of antifouling polymeric formulation (APF) and polyelectrolyte solution. The surface morphology of nanoencapsulated finished textile fabric was characterized through scanning electron microscopy to confirm the uniform distribution of nanoparticles on the cotton textile fabric. Optical profilometry and atomic force microscopy studies indicated increased surface roughness in the coated textile substrate as compared to the uncoated textile. The surface thickness of the fabricated textile increased with the number of deposited bilayers on the textile substrate. Surface hydrophobicity increased with number of coating bilayers with θ values of x for single layer, up to y for 20 bilayers. The antibacterial activity of the uncoated and layer-by-layer coated finished textile was also evaluated. It was significant and exhibited a significant zone of inhibition against microbial strains Gram-positive S. aureus and Gram-negative E. coli. The bilayer coating exhibited water repellency, hydrophobicity, and antibacterial activity. Thus, the fabricated textile could be highly useful for many industrial and biomedical applications.

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Chen, Guopu, Jie Hu, Zhiwu Hong, Gefei Wang, Zhiming Wang, Canwen Chen, Jinjian Huang, Xiuwen Wu, and Jianan Ren. "Multifunctional Electrospun Textiles for Wound Healing." Journal of Biomedical Nanotechnology 18, no. 3 (March 1, 2022): 796–806. http://dx.doi.org/10.1166/jbn.2022.3288.

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The novel multifunctional electrospun textiles were fabricated by incorporating sheet-like kaolinite and silver nanoparticles (AgNps) into a polyurethane (PU) textile by using electrostatic spinning to promote wound-healing process. Threedimensional network of PU electrospun textiles offered an appropriate framework for loading kaolinite nanosheets and AgNps. Moreover, the kaolinite nanosheets healed bleeding wounds by accelerating plasma absorption, increasing blood cell concentrations, and stimulating coagulation factors. Furthermore, the AgNps killed microbes by destroying the cell membrane, while the deleterious effects were controlled by incorporation into the electrospun textile. The therapeutic effects of multifunctional electrospun textile in treating full-thickness abdominal wall defect were explored. The wound healing process could be accelerated via the textile by restoring the abdominal physiological environment, reducing the inflammatory response, and promoting collagen deposition, angiogenesis, and epithelization.

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Stefan-van Staden, Raluca-Ioana, Livia Alexandra Gugoaşă, Marius Badulescu, and Carmen Cristina Surdu-Bob. "Novel textile material based disposable sensors for biomedical analysis." RSC Advances 5, no. 56 (2015): 45545–50. http://dx.doi.org/10.1039/c5ra04777c.

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Song, Jinzhong, Tianshu Zhou, Zhonggang Liang, Ruoxi Liu, Jianping Guo, Xinming Yu, Zhongping Cao, Chuang Yu, Qingjun Liu, and Jingsong Li. "Electrochemical Characteristics Based on Skin-Electrode Contact Pressure for Dry Biomedical Electrodes and the Application to Wearable ECG Signal Acquisition." Journal of Sensors 2021 (September 15, 2021): 1–9. http://dx.doi.org/10.1155/2021/7741881.

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Based on one simulated skin-electrode electrochemical interface, some electrochemical characteristics based on skin-electrode contact pressure (SECP) for dry biomedical electrodes were analysed and applied in this research. First, 14 electrochemical characteristics including 2 static impedance (SI) characteristics, 11 alternating current impedance (ACI) characteristics and one polarization voltage (PV), and 4 SECP characteristics were extracted in one electrochemical evaluation platform, and their correlation trends were statistically analysed. Second, dry biomedical electrode samples developed by the company and the laboratory, including textile electrodes, Apple watch, AMAZFIT rice health bracelet 1S, and stainless steel electrodes, were placed horizontally and vertically on the “skin” surface of the electrochemical evaluation platform, whose polarization voltages were quantitatively analysed. Third, electrocardiogram (ECG) collection circuits based on an impedance transformation (IT) circuit for textile electrodes were designed, and a wearable ECG acquisition device was designed, which could obtain complete ECG signals. Experimental results showed SECP characteristics for dry electrodes had good correlations with static impedance and ACI characteristics and the better correlation values among 2-10 Hz. In addition, polarization voltages in vertical state were smaller in horizontal state for dry biomedical electrodes, and polarization voltage of electrode pair (PVEP) values for Apple watch bottom was always smaller than ones for Apple watch crown and LMF-2 textile electrode. And the skin-electrode contact impedance of IT textile electrodes was less than the traditional textile electrodes.

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Pal, Sukanta, Sourav Mondal, Prasanta Pal, Ajit Das, Debasish Mondal, Ananya Chaudhuri, Bholanath Panda, and Jayanta Maity. "Applications of Nanotechnology for Antibacterial Finishing Textiles: A Review." Sensor Letters 18, no. 6 (June 1, 2020): 437–48. http://dx.doi.org/10.1166/sl.2020.4260.

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This survey outlines the impact of nanoparticles and the importance of nanotechnology in textiles materials. It shows a unique move to nanomaterials as another instrument to enhance the properties and addition of multi-functionalities. Human security and prosperity are undermined by organisms causing various irresistible sicknesses bringing about a substantial number of deaths every year. Currently, nanotechnology is considered the most interesting technology for smart textile commercial applications; since it allows the permanent and effective functionalization of substrate without affecting their macrosacle properties, such as breathability and comfortability. Nanoparticles as antimicrobial agents have got extensive consideration in both scholarly and mechanical researchers due to their biological activity. Beside this, polymeric covered nanoparticles based materials have increased much consideration because of progression in polymer science and innovation. This survey article likewise addresses the production and distribution of nanoparticles for biomedical textile applications.

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Eskandarian, Ladan, Emily Lam, Connor Rupnow, Milad Alizadeh Meghrazi, and Hani E. Naguib. "Robust and Multifunctional Conductive Yarns for Biomedical Textile Computing." ACS Applied Electronic Materials 2, no. 6 (May 4, 2020): 1554–66. http://dx.doi.org/10.1021/acsaelm.0c00171.

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Bengalli, Rossella, Luisa Fiandra, Claudia Vineis, Diego Omar Sanchez-Ramirez, Nuno G. Azoia, Alessio Varesano, and Paride Mantecca. "Safety Assessment of Polypyrrole Nanoparticles and Spray-Coated Textiles." Nanomaterials 11, no. 8 (August 3, 2021): 1991. http://dx.doi.org/10.3390/nano11081991.

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Polypyrrole (PPy) nanoparticles (NPs) are used for the coating of materials, such as textiles, with biomedical applications, including wound care and tissue engineering, but they are also promising antibacterial agents. In this work, PPy NPs were used for the spray-coating of textiles with antimicrobial properties. The functional properties of the materials were verified, and their safety was evaluated. Two main exposure scenarios for humans were identified: inhalation of PPy NPs during spray (manufacturing) and direct skin contact with NPs-coated fabrics (use). Thus, the toxicity properties of PPy NPs and PPy-coated textiles were assessed by using in vitro models representative of the lung and the skin. The results from the materials’ characterization showed the stability of both the PPy NP suspension and the textile coating, even after washing cycles and extraction in artificial sweat. Data from an in vitro model of the air–blood barrier showed the low toxicity of these NPs, with no alteration of cell viability and functionality observed. The skin toxicity of PPy NPs and the coated textiles was assessed on a reconstructed human epidermis model following OECD 431 and 439 guidelines. PPy NPs proved to be non-corrosive at the tested conditions, as well as non-irritant after extraction in artificial sweat at two different pH conditions. The obtained data suggest that PPy NPs are safe NMs in applications for textile coating.

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Rajendran, V. "Development of Nanomaterials from Natural Resources for Various Industrial Applications." Advanced Materials Research 67 (April 2009): 71–76. http://dx.doi.org/10.4028/www.scientific.net/amr.67.71.

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In the present study, the synthesis of nano structured materials such as nano alumina (Al2O3), nano silica (SiO2), and nano hydroxyapatite (HAp) have been discussed for industrial applications. The oxide nano materials are prepared employing chemical methods from natural resources. The HAp is prepared employing sol-gel process using chemical precursors. The synthesised nano alumina (Al2O3) powder has been used to improve the physicochemical properties of refractories. The prepared nano particles employing different process techniques have been characterized using XRD, FTIR, EDAX and SEM studies. The silica nano particles have been coated on textiles to get the wrinkle free/antibacterial textile cloths/products. The synthesized nanoparticles from natural resources have been used in various industrial applications such as refractories, textiles and biomedical field.

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Eadie, Leslie, and Tushar K. Ghosh. "Biomimicry in textiles: past, present and potential. An overview." Journal of The Royal Society Interface 8, no. 59 (February 16, 2011): 761–75. http://dx.doi.org/10.1098/rsif.2010.0487.

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The natural world around us provides excellent examples of functional systems built with a handful of materials. Throughout the millennia, nature has evolved to adapt and develop highly sophisticated methods to solve problems. There are numerous examples of functional surfaces, fibrous structures, structural colours, self-healing, thermal insulation, etc., which offer important lessons for the textile products of the future. This paper provides a general overview of the potential of bioinspired textile structures by highlighting a few specific examples of pertinent, inherently sustainable biological systems. Biomimetic research is a rapidly growing field and its true potential in the development of new and sustainable textiles can only be realized through interdisciplinary research rooted in a holistic understanding of nature.

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Wang, Yunqi, Xiaoling Liu, Chenkai Zhu, Andrew Parsons, Jinsong Liu, Songlin Huang, Ifty Ahmed, Chris Rudd, and Nusrat Sharmin. "Production and characterisation of novel phosphate glass fibre yarns, textiles, and textile composites for biomedical applications." Journal of the Mechanical Behavior of Biomedical Materials 99 (November 2019): 47–55. http://dx.doi.org/10.1016/j.jmbbm.2019.07.017.

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Cesarelli, Giuseppe, Leandro Donisi, Armando Coccia, Federica Amitrano, Giovanni D’Addio, and Carlo Ricciardi. "The E-Textile for Biomedical Applications: A Systematic Review of Literature." Diagnostics 11, no. 12 (December 3, 2021): 2263. http://dx.doi.org/10.3390/diagnostics11122263.

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The use of e-textile technologies spread out in the scientific research with several applications in both medical and nonmedical world. In particular, wearable technologies and miniature electronics devices were implemented and tested for medical research purposes. In this paper, a systematic review regarding the use of e-textile for clinical applications was conducted: the Scopus and Pubmed databases were investigate by considering research studies from 2010 to 2020. Overall, 262 papers were found, and 71 of them were included in the systematic review. Of the included studies, 63.4% focused on information and communication technology studies, while the other 36.6% focused on industrial bioengineering applications. Overall, 56.3% of the research was published as an article, while the remainder were conference papers. Papers included in the review were grouped by main aim into cardiological, muscular, physical medicine and orthopaedic, respiratory, and miscellaneous applications. The systematic review showed that there are several types of applications regarding e-textile in medicine and several devices were implemented as well; nevertheless, there is still a lack of validation studies on larger cohorts of subjects since the majority of the research only focuses on developing and testing the new device without considering a further extended validation.

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Vaesken, Antoine, Anne Pelle, Graciela Pavon-Djavid, Jeanne Rancic, Nabil Chakfe, and Frederic Heim. "Heart valves from polyester fibers: a preliminary 6-month in vivo study." Biomedical Engineering / Biomedizinische Technik 63, no. 3 (June 27, 2018): 271–78. http://dx.doi.org/10.1515/bmt-2016-0242.

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Abstract Transcatheter aortic valve implantation (TAVI) has become a popular alternative technique to surgical valve replacement for critical patients. Biological valve tissue has been used in TAVI procedures for over a decade, with over 150,000 implantations to date. However, with only 6 years of follow up, little is known about the long-term durability of biological tissue. Moreover, the high cost of tissue harvesting and chemical treatment procedures favor the development of alternative synthetic valve leaflet materials. In that context, textile polyester [polyethylene terephthalate (PET)] could be considered as an interesting candidate to replace the biological valve leaflets in TAVI procedures. However, no result is available in the literature about the behavior of textile once in contact with biological tissue in the valve position. The interaction of synthetic textile material with living tissues should be comparable to biological tissue. The purpose of this preliminary work is to compare the in vivo performances of various woven textile PET valves over a 6-month period in order to identify favorable textile construction features. In vivo results indicate that fibrosis as well as calcium deposit can be limited with an appropriate material design.

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Soh, Ping Jack, Bertold Van den Bergh, Hantao Xu, Hadi Aliakbarian, Saeed Farsi, Purna Samal, Guy A. E. Vandenbosch, Dominique M. M. P. Schreurs, and Bart K. J. C. Nauwelaers. "A smart wearable textile array system for biomedical telemetry applications." IEEE Transactions on Microwave Theory and Techniques 61, no. 5 (May 2013): 2253–61. http://dx.doi.org/10.1109/tmtt.2013.2247051.

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McCarthy, Alec, Rajesh Shah, Johnson V. John, Demi Brown, and Jingwei Xie. "Understanding and utilizing textile-based electrostatic flocking for biomedical applications." Applied Physics Reviews 8, no. 4 (December 2021): 041326. http://dx.doi.org/10.1063/5.0070658.

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胡, 吉永. "Teaching Practice of Textile Structure Formation as a Specialized Core Course toward Biomedical Textile Materials and Technologies." Advances in Education 10, no. 03 (2020): 262–66. http://dx.doi.org/10.12677/ae.2020.103043.

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Dölker, Eva-Maria, Alkisah binti Mubin, Eko Supriyanto, Elke Haase, Sybille Krzywinski, and Jens Haueisen. "Sensation thresholds in electrocutaneous stimulation." Current Directions in Biomedical Engineering 6, no. 3 (September 1, 2020): 372–75. http://dx.doi.org/10.1515/cdbme-2020-3096.

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AbstractAcoustic or visual warning signals for workers in hazardous situations might fail under loud and/or lowvisibility work situations. A warning system should be developed that uses electrocutaneous stimulation through textile electrodes. Previous work investigated suitable stimulation parameters using TENS electrodes. The aim of this study was to compare TENS and textile cuff electrodes in terms of sensation thresholds, qualitative and spatial sensation. A study on 30 healthy volunteers (f=13, m=17) of mean age of 26.7 years was conducted applying bi-phasic rectangular current pulses to electrodes attached to the upper right arm. The study revealed that perception, attention and intolerance thresholds, qualitative and spatial perception are comparable indicating that future studies with the textile cuff electrodes can be generally based on the previous results with TENS electrodes.

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Gray, Bonnie. "(Invited) Textile-based Electronic/fluidic Platforms Towards Wearable Diagnostic Sensor Systems." ECS Meeting Abstracts MA2022-01, no. 53 (July 7, 2022): 2200. http://dx.doi.org/10.1149/ma2022-01532200mtgabs.

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The fields of flexible electronics and microfluidic-based labs-on-a-chip continue to advance, with new devices and systems-level technologies reported on a daily basis. However, much of this advancement is limited to each of these fields separately, rather than development of platforms for combining flexible electronics and microfluidics together to realize wearable sensors and sensor systems. We present new approaches for combining electronics and microfluidic devices together on wearable textile-based substrates, resulting in combined systems that are highly portable, mechanically flexible, and can be easily integrated with clothing. We develop polymer materials traditionally used for artistic designs on clothing for use as engineering materials, i.e., as the base polymer for conductive electronics that can be integrated with polymer microfluidic channels printed in the same materials. Unlike other techniques, our technologies and materials are highly compatible with clothing-based textiles, and result in non-polarizable electrodes for improved frequency response. Our platforms can be laundered, facilitating rugged wearable devices and systems for biomedical and environmental monitoring. Application areas for our flexible and wearable platforms include health care, worker safety, food safety, consumer devices, personalized medicine and biomedical and environmental monitoring. We present technologies for specific applications that include: lighting and health monitors for safety vests; heart and perspiration (pH, lactate) monitors for athletic clothing; and wearable bioelectric and biochemical monitoring.

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Berendjchi, Amirhosein, Ramin Khajavi, and Mohammad Esmaeil Yazdanshenas. "Application of Nanosols in Textile Industry." International Journal of Green Nanotechnology 1 (January 1, 2013): 194308921350681. http://dx.doi.org/10.1177/1943089213506814.

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Inorganic metal oxide nanoparticles are mainly synthesized by sol–gel process. The most important beneficial advantage of mentioned process is facile and the time-consuming route. The resultant meta-stable synthesized inorganic nanoparticles can easily modify different substrates and alter their performance. The presented review investigates the possible applications of nanosols (especially silica and titanium dioxide sols) in the field of textile industry, including the formation of hydrophobic, bioactive or protective metallic oxide coatings on textiles by physical or chemical modifying of nanosols.

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Kudzin, Marcin H., Anna Kaczmarek, Zdzisława Mrozińska, and Joanna Olczyk. "Deposition of Copper on Polyester Knitwear Fibers by a Magnetron Sputtering System. Physical Properties and Evaluation of Antimicrobial Response of New Multi-Functional Composite Materials." Applied Sciences 10, no. 19 (October 7, 2020): 6990. http://dx.doi.org/10.3390/app10196990.

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In this study, copper films were deposited by magnetron sputtering on poly(ethylene terephthalate) knitted textile to fabricate multi-functional, antimicrobial composite material. The modified knitted textile composites were subjected to microbial activity tests against colonies of Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria and antifungal tests against Chaetomium globosum fungal molds species. The prepared samples were characterized by UV/VIS transmittance, scanning electron microscopy (SEM), tensile and filtration parameters and the ability to block UV radiation. The performed works proved the possibility of manufacturing a new generation of antimicrobial textile composites with barrier properties against UV radiation, produced by a simple, zero-waste method. The specific advantages of using new poly(ethylene terephthalate)-copper composites are in biomedical applications areas.

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Luo, Hao, Dakai Gong, Feng Yang, Rui Zeng, Yong Zhang, and Lin Tan. "Preparation and characterization of polyurethane-Rheum rhabarbarum-zirconium phosphate composite fiber with antibacterial and antioxidant properties." Materials Express 11, no. 1 (January 1, 2021): 123–32. http://dx.doi.org/10.1166/mex.2021.1890.

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Antibacterial and antioxidant fibers that prevent bacterial infection and oxidative damage have attracted great scientific interest in the textile industry and biomedical fields. The present study reports a novel composite fiber (TPU/ZrP/Rr) prepared by incorporating zirconium phosphate (ZrP) with antibacterial property and natural Rheum rhabarbarum (Rr) powder possessing antioxidant activity into thermoplastic polyurethane (TPU) matrix via wet-spinning technology. The prepared fibers were systematically characterized for their structure, morphologies, mechanical properties, surface wettability, antioxidant activity and antibacterial performance. The antioxidant activity of TPU/ZrP/Rr was evaluated according to the scavenging rates on three types of radicals of DPPH (2,2-diphenyl-1-picrylhydrazyl), superoxide anion and hydroxyl, and determined as 95.4%, 18.6% and 20.7%, respectively; In addition, TPU/ZrP/Rr fibers exhibited high biocidal efficacy up to 99.99% according to the growth inhibition of Gram positive S. aureus and Gram negative E. coli through contact model. Collectively, the desirable antibacterial and antioxidant performance as well as other properties enable the TPU/ZrP/Rr fibers to be very promising for biomedical textiles and food packaging applications.

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Jiao, Yongjie, Chaojing Li, Laijun Liu, Fujun Wang, Xingxing Liu, Jifu Mao, and Lu Wang. "Construction and application of textile-based tissue engineering scaffolds: a review." Biomaterials Science 8, no. 13 (2020): 3574–600. http://dx.doi.org/10.1039/d0bm00157k.

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Gerhardt, L. C., V. Strässle, A. Lenz, N. D. Spencer, and S. Derler. "Influence of epidermal hydration on the friction of human skin against textiles." Journal of The Royal Society Interface 5, no. 28 (March 10, 2008): 1317–28. http://dx.doi.org/10.1098/rsif.2008.0034.

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Friction and shear forces, as well as moisture between the human skin and textiles are critical factors in the formation of skin injuries such as blisters, abrasions and decubitus. This study investigated how epidermal hydration affects the friction between skin and textiles. The friction between the inner forearm and a hospital fabric was measured in the natural skin condition and in different hydration states using a force plate. Eleven males and eleven females rubbed their forearm against the textile on the force plate using defined normal loads and friction movements. Skin hydration and viscoelasticity were assessed by corneometry and the suction chamber method, respectively. In each individual, a highly positive linear correlation was found between skin moisture and friction coefficient (COF). No correlation was observed between moisture and elasticity, as well as between elasticity and friction. Skin viscoelasticity was comparable for women and men. The friction of female skin showed significantly higher moisture sensitivity. COFs increased typically by 43% (women) and 26% (men) when skin hydration varied between very dry and normally moist skin. The COFs between skin and completely wet fabric were more than twofold higher than the values for natural skin rubbed on a dry textile surface. Increasing skin hydration seems to cause gender-specific changes in the mechanical properties and/or surface topography of human skin, leading to skin softening and increased real contact area and adhesion.

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Abd El-Hady, M. M., Asmaa Farouk, S. El-Sayed Saeed, and Saad Zaghloul. "Antibacterial and UV Protection Properties of Modified Cotton Fabric Using a Curcumin/TiO2 Nanocomposite for Medical Textile Applications." Polymers 13, no. 22 (November 21, 2021): 4027. http://dx.doi.org/10.3390/polym13224027.

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Medical textiles are one of the most rapidly growing parts of the technical textiles sector in the textile industry. This work aims to investigate the medical applications of a curcumin/TiO2 nanocomposite fabricated on the surface of cotton fabric. The cotton fabric was pretreated with three crosslinking agents, namely citric acid, 3-Chloro-2-hydroxypropyl trimethyl ammonium chloride (Quat 188) and 3-glycidyloxypropyltrimethoxysilane (GPTMS), by applying the nanocomposite to the modified cotton fabric using the pad-dry-cure method. The chemistry and morphology of the modified fabrics were examined by Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, and scanning electron microscopy. In addition, the chemical mechanism for the nanocomposite-modified fabric was reported. UV protection (UPF) and antibacterial properties against Gram-positive S. aureus and Gram-negative E. coli bacterial strains were investigated. The durability of the fabrics to 20 washing cycles was also examined. Results demonstrated that the nanocomposite-modified cotton fabric exhibited superior antibacterial activity against Gram-negative bacteria than Gram-positive bacteria and excellent UV protection properties. Moreover, a good durability was obtained, which was possibly due to the effect of the crosslinker used. Among the three pre-modifications of the cotton fabric, Quat 188 modified fabric revealed the highest antibacterial activity compared with citric acid or GPTMS modified fabrics. This outcome suggested that the curcumin/TiO2 nanocomposite Quat 188-modified cotton fabric could be used as a biomedical textile due to its antibacterial properties.

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Jockenhoevel, Stefan. "The role of textile engineering in regenerative medicine." Biomedical Engineering / Biomedizinische Technik 63, no. 3 (June 27, 2018): 219–20. http://dx.doi.org/10.1515/bmt-2018-0078.

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Helmus, Michael N. "Overview of Biomedical Materials." MRS Bulletin 16, no. 9 (September 1991): 33–38. http://dx.doi.org/10.1557/s0883769400056025.

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Biomedical materials are synthetic polymers, metals, ceramics, inorganics, and natural macromolecules (biopolymers), that are manufactured or processed to be suitable for use in or as medical devices or prostheses. These materials typically come in contact with cells, proteins, tissues, organs, and organ systems. They can be implanted for long-term use, e.g., an arrtificial hip, or for temporary use, e.g., an intravenous catheter. Except in isolated cases when a material is used by itself, such as collagen injections for filling soft tissue defects, biomedical materials are used as a component in a medical device. The form of the material (perhaps a textile) how it interfaces (blood contacting, for instance), and its time of use will determine its required properties. A material's use needs to be viewed in the context of the total device and its interface with the body. One material property alone is unlikely to lead to a successful and durable device, but the failure to address a key property can lead to device failure. Until recently, medical-grade polymers, ceramics, inorganics, and metals were purified versions of commercial-grade materials. A variety of polymers, biopolymers, and inorganics is now being specifically developed for medical applications. Table I summarizes the types of biomedical materials.

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Clarke, Steven R. "Net Shape Woven Fabrics—2D and 3D." Journal of Industrial Textiles 30, no. 1 (July 2000): 15–25. http://dx.doi.org/10.1177/152808370003000103.

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Weaving technology has been used for many years to weave net shape products to very tightly controlled dimensions. Numerous examples of narrow tapes, tubular fabrics, and multi-layer belting products can be found in the biomedical, automotive, and industrial fields. In more recent times 2D and 3D woven net shape products have expanded into polar or spiral woven fabrics, integrally stiffened skin panels, and tapered net shape airfoil components. This paper will review the manufacturing technologies used to produce these net shape textile products as well as show examples of the finished textile products and their applications.

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Germanova-Krasteva, Diana, and Elena Nikolova. "Deformation behavior of textile electrodes during compression." E3S Web of Conferences 207 (2020): 03002. http://dx.doi.org/10.1051/e3sconf/202020703002.

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Textile electrodes are increasingly used to measure biomedical signals (ECG, EMG, EEG) needed for diagnostic activities in medical practice. Tight contact between the electrode and the human body is required to obtain a quality biopotential signal. Pressure is applied to the electrode to secure it. The aim of the work is to study the deformations caused by the applied efforts. The deformation curves of two models of textile electrodes were determined, which have been examined before and after a certain number of washing cycles (10 and 50), in a wide range of pressure changes on the electrodes - from 0.1 to 17 kPa. Analyses of the deformation behaviour of the electrodes and its changes after washing are made. Characteristic zones in the deformation curves are defined; reasons for their formation and change after washing are commented.

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Vaesken, Antoine, Christian Pidancier, Nabil Chakfe, and Frederic Heim. "Hybrid textile heart valve prosthesis: preliminary in vitro evaluation." Biomedical Engineering / Biomedizinische Technik 63, no. 3 (June 27, 2018): 333–39. http://dx.doi.org/10.1515/bmt-2016-0083.

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Abstract Transcatheter aortic valve implantation (TAVI) is nowadays a popular alternative technique to surgical valve replacement for critical patients. Biological valve tissue has been used in these devices for over a decade now with over 100,000 implantations. However, material degradations due to crimping for catheter insertion purpose have been reported, and with only 6-year follow-up, no information is available about the long-term durability of biological tissue. Moreover, expensive biological tissue harvesting and chemical treatment procedures tend to promote the development of synthetic valve leaflet materials. Textile polyester (PET) material is characterized by outstanding folding and strength properties combined with proven biocompatibility and could therefore be considered as a candidate to replace biological valve leaflets in TAVI devices. Nevertheless, the material should be preferentially partly elastic in order to limit water hammer effects at valve closing time and prevent exaggerated stress from occurring into the stent and the valve. The purpose of the present work is to study in vitro the mechanical as well as the hydrodynamic behavior of a hybrid elastic textile valve device combining non-deformable PET yarn and elastic polyurethane (PU) yarn. The hybrid valve properties are compared with those of a non-elastic textile valve. Testing results show improved hydrodynamic properties with the elastic construction. However, under fatigue conditions, the interaction between PU and PET yarns tends to limit the valve durability.

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TİMOÇİN, Aytül, and Özlem KAYACAN. "FABRIC BASED WEARABLE SENSOR STRUCTURES." TEXTEH Proceedings 2019 (November 5, 2019): 200–203. http://dx.doi.org/10.35530/tt.2019.44.

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Nowadays, the electronics are free of their rigid structures and become flexible. As a result of this structural transformation and minimization of electronic materials, they can be integrated into textiles as wearable devices. The sensors are one of the main structures of personalized wearable monitoring devices and they can be classified into physical, chemical, electrical and biological ones. The wearable electronic sensors are able to monitor majorly biomedical signals and other ambient variants. Gesture, body temperature, respiration, pulse, blood gas etc. are among the measured physiological parameters. The other monitored parameters can be defined as environmental variants such as ambient temperature, humidity, sound, gas etc. Different types of textile based sensors are used in wearable personalized devices using different conductive materials in order to measure the vital parameters. Metal coated fabrics, fibres containing metals or metal based additives, knitted and woven structures produced by using conductive yarns etc. can be used as textile based sensors. These sensor structures can be used in several fields such as medical, sport, artistic communities, military and aerospace. In this paper fabric, based wearable sensor types will be reviewed and a lso it will be focused on the recent advances in the field of these sensors and their usage areas.

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Avvaru, Srinivasulu, N. Sriraam, V. S. Prakash, and Sarthak Sahoo. "Wearable Ag-NyW textile electrode for continuous ECG monitoring." Research on Biomedical Engineering 37, no. 2 (April 26, 2021): 231–47. http://dx.doi.org/10.1007/s42600-021-00147-2.

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Annaheim, Simon, Fabian Braun, Leah Bernhard, Amarin Pfammatter, Martin Proença, Guillaume Bonnier, Damien Ferrario, Mathieu Lemay, and René M. Rossi. "Proof-of-Concept Study for Reflectance Pulse Oximetry Using Optical-Fibre-Based Sensors." Current Directions in Biomedical Engineering 8, no. 2 (August 1, 2022): 121–24. http://dx.doi.org/10.1515/cdbme-2022-1032.

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Abstract Optical fibres enable to design of new textile-based sensors for an unobtrusive, continuous, and long-term acquisition of photoplethysmography (PPG) signals. However, no research has been done about the accuracy of measuring blood oxygen saturation (SpO2) and the feasibility of PPG-based blood pressure measurement. This proof-ofconcept study examined these aspects for a woven sensing patch applied on the forehead in five healthy participants. During a controlled desaturation study, SpO2 estimation revealed an amplitude of the root-mean-squared error (ARMS) of 3.6%, and acceptable signal quality for blood pressure estimation was achieved for 40% of all data. These results indicate that textile-based sensors can reach the required PPG signal quality to simultaneously estimate multiple vital signs, including blood pressure.

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Tien, Nguyen D., Ståle Petter Lyngstadaas, João F. Mano, Jonathan James Blaker, and Håvard J. Haugen. "Recent Developments in Chitosan-Based Micro/Nanofibers for Sustainable Food Packaging, Smart Textiles, Cosmeceuticals, and Biomedical Applications." Molecules 26, no. 9 (May 3, 2021): 2683. http://dx.doi.org/10.3390/molecules26092683.

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Chitosan has many useful intrinsic properties (e.g., non-toxicity, antibacterial properties, and biodegradability) and can be processed into high-surface-area nanofiber constructs for a broad range of sustainable research and commercial applications. These nanofibers can be further functionalized with bioactive agents. In the food industry, for example, edible films can be formed from chitosan-based composite fibers filled with nanoparticles, exhibiting excellent antioxidant and antimicrobial properties for a variety of products. Processing ‘pure’ chitosan into nanofibers can be challenging due to its cationic nature and high crystallinity; therefore, chitosan is often modified or blended with other materials to improve its processability and tailor its performance to specific needs. Chitosan can be blended with a variety of natural and synthetic polymers and processed into fibers while maintaining many of its intrinsic properties that are important for textile, cosmeceutical, and biomedical applications. The abundance of amine groups in the chemical structure of chitosan allows for facile modification (e.g., into soluble derivatives) and the binding of negatively charged domains. In particular, high-surface-area chitosan nanofibers are effective in binding negatively charged biomolecules. Recent developments of chitosan-based nanofibers with biological activities for various applications in biomedical, food packaging, and textiles are discussed herein.

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Di Tocco, Joshua, Daniela Lo Presti, Alberto Rainer, Emiliano Schena, and Carlo Massaroni. "Silicone-Textile Composite Resistive Strain Sensors for Human Motion-Related Parameters." Sensors 22, no. 10 (May 23, 2022): 3954. http://dx.doi.org/10.3390/s22103954.

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In recent years, soft and flexible strain sensors have found application in wearable devices for monitoring human motion and physiological parameters. Conductive textile-based sensors are good candidates for developing these sensors. However, their robust electro-mechanical connection and susceptibility to environmental factors are still an open challenge to date. In this work, the manufacturing process of a silicone-textile composite resistive strain sensor based on a conductive resistive textile encapsulated into a dual-layer of silicone rubber is reported. In the working range typical of biomedical applications (up to 50%), the proposed flexible, skin-safe and moisture resistant strain sensor exhibited high sensitivity (gauge factor of −1.1), low hysteresis (maximum hysteresis error 3.2%) and ease of shaping in custom designs through a facile manufacturing process. To test the developed flexible sensor, two applicative scenarios covering the whole working range have been considered: the recording of the chest wall expansion during respiratory activity and the capture of the elbow flexion/extension movements.

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Sungmee Park and S. Jayaraman. "Smart Textile-Based Wearable Biomedical Systems: A Transition Plan for Research to Reality." IEEE Transactions on Information Technology in Biomedicine 14, no. 1 (January 2010): 86–92. http://dx.doi.org/10.1109/titb.2009.2025817.

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Guan, Guoping, Chenglong Yu, Xuan Fang, Robert Guidoin, Martin W. King, Hongjun Wang, and Lu Wang. "Exploration into practical significance of integral water permeability of textile vascular grafts." Journal of Applied Biomaterials & Functional Materials 19 (January 2021): 228080002110140. http://dx.doi.org/10.1177/22808000211014007.

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Water permeability of textile vascular grafts has been considered as a key indicator for predicting blood permeability after implantation. However, a correlation between water and blood permeability has not been established yet. Therefore, even though the water permeability of a vascular graft can be tested according to the standard ISO 7198, the results fail to guide a manufacturer or a surgeon to judge whether this vascular graft needs pre-clotting or not prior to implantation. As a result, all commercial graft products show almost zero water permeability, which leads to the loss of advantages that textile vascular grafts have the pore size-controlled porous wall. To solve this problem, four types of woven vascular grafts were designed and manufactured in the present work. Then their permeability to water, simulated plasma, and anticoagulated whole blood were measured at graded pressures from 8 to 16 kPa. Moreover, the correlations among the water permeability, the simulated plasma permeability, and the anticoagulated whole blood permeability were established. The results suggest that relatively steady correlations exist between the water permeability and the anticoagulated whole blood permeability, and that the evaluation of the blood permeability using the water permeability is feasible and objective. The present work provides a quantitative method for evaluating the blood permeability using the water permeability, and the latter is thus endowed with practical significance for guiding designs and clinical pre-clotting operations of textiles vascular grafts.

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Sultan, Kamel, Ahmed Mahmoud, and Amin Abbosh. "Textile Electromagnetic Brace for Knee Imaging." IEEE Transactions on Biomedical Circuits and Systems 15, no. 3 (June 2021): 522–36. http://dx.doi.org/10.1109/tbcas.2021.3085351.

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Dutta, Dishari, Chowdhury Mobaswar Hossain, and Avijit Biswas. "Silk Proteins in Drug Delivery: An Overview." Research in Pharmacy and Health Sciences 4, no. 4 (December 15, 2018): 514–18. http://dx.doi.org/10.32463/rphs.2018.v04i04.21.

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Primarily Silk is classified as Mulberry silk (collected from Bombyx mori) and Non-Mulberry silk (collected from sources other than Bombyx mori). Whilst Mulberry silk has gained its importance in biomedical application due to superior biocompatibility and biodegradable properties when compared to synthetic protologues; such edge cutting popularity is quite new among Non-Mulberry variant. Silk proteins namely Sericin and Fibroin, are reported to have been employed in tissue engineering and drug delivery owing to its biocompatibility, slow biodegradability, self-assembly, excellent mechanical properties and controllable structure and morphology. Silk is less inﬂammatory than other common biodegradable polymers. Fibroin is the fibre used in textile and biomedical devices whereas Sericin is glue like material which binds the fibres together. The fibroin is further divided into two, based on the molecular weights of chains of amino acid. Sericin, being the glue-like material and constitute the part of silk which was generally washed away during extraction of fibroin used as textile material. Researchers have reported that Sericin do not produce immunogenic responses unless associated with fibroin. The review focuses on silk proteins and its utility in drug delivery.

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Kunz, Regina Inês, Rose Meire Costa Brancalhão, Lucinéia de Fátima Chasko Ribeiro, and Maria Raquel Marçal Natali. "Silkworm Sericin: Properties and Biomedical Applications." BioMed Research International 2016 (2016): 1–19. http://dx.doi.org/10.1155/2016/8175701.

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Silk sericin is a natural polymer produced by silkworm,Bombyx mori, which surrounds and keeps together two fibroin filaments in silk thread used in the cocoon. The recovery and reuse of sericin usually discarded by the textile industry not only minimizes environmental issues but also has a high scientific and commercial value. The physicochemical properties of the molecule are responsible for numerous applications in biomedicine and are influenced by the extraction method and silkworm lineage, which can lead to variations in molecular weight and amino acid concentration of sericin. The presence of highly hydrophobic amino acids and its antioxidant potential make it possible for sericin to be applied in the food and cosmetic industry. The moisturizing power allows indications as a therapeutic agent for wound healing, stimulating cell proliferation, protection against ultraviolet radiation, and formulating creams and shampoos. The antioxidant activity associated with low digestibility of sericin that expands the application in the medical field, such as antitumour, antimicrobial and anti-inflammatory agent, anticoagulant, acts in colon health, improving constipation and protects the body from obesity through improved plasma lipid profile. In addition, the properties of sericin allow its application as a culture medium and cryopreservation, in tissue engineering and for drug delivery, demonstrating its effective use, as an important biomaterial.

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Khan, Nishath. "Applications of electrospun nanofibers in the biomedical field." SURG Journal 5, no. 2 (April 22, 2012): 63–73. http://dx.doi.org/10.21083/surg.v5i2.1471.

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Electrospinning is a technology that has been widely used as a novel method for the generation of nano scale fibres. Electrospun fibres are used in a wide range of applications from electronics to textile. The viability and popularity of this technology can be evidenced by its ease of use and the simplicity of the science behind building the electrospinning machine. The generated fibres have a high surface area- to- volume ratio, the fibrous mats are highly porous and display excellent mechanical properties when compared to other materials of the same scale. In the past decade, this technology has taken off with the use of biocompatible and biodegradable polymers. This review is a summary of the different ways in which electrospinning can be used in the biomedical field. This article analyzes the recent advances of this technology in tissue engineering, drug delivery and in enzyme immobilisation, which once again showcases the versatility of the electrospinning procedure.

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Sadu, Rakesh B., Daniel H. Chen, Ashwini S. Kucknoor, Zhanhu Guo, and Andrew J. Gomes. "Silver-Doped TiO2/Polyurethane Nanocomposites for Antibacterial Textile Coating." BioNanoScience 4, no. 2 (February 8, 2014): 136–48. http://dx.doi.org/10.1007/s12668-014-0125-x.

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Lu, Yuan. "Textile-embedded cell-free biosensors." Nature Biomedical Engineering 6, no. 3 (March 2022): 225–26. http://dx.doi.org/10.1038/s41551-022-00869-3.

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Amri, Amna, Gaetan Laroche, Nabil Chakfe, and Frederic Heim. "Fibrous composite material for textile heart valve design: in vitro assessment." Biomedical Engineering / Biomedizinische Technik 63, no. 3 (June 27, 2018): 221–30. http://dx.doi.org/10.1515/bmt-2017-0226.

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Abstract With over 150,000 implantations performed over the world, transcatheter aortic valve replacement (TAVR) has become a surgical technique, which largely competes with open surgery valve replacement for an increasing number of patients. The success of the procedure favors the research toward synthetic valve leaflet materials as an alternative to biological tissues, whose durability remains unknown. In particular, fibrous constructions have recently proven to be durable in vivo over a 6-month period of time in animal sheep models. Exaggerated fibrotic tissue formation remains, however, a critical issue to be addressed. This work investigates the design of a composite fibrous construction combining a woven polyethylene terephthalate (PET) layer and a non-woven PET mat, which are expected to provide, respectively, strength and appropriate topography toward limited fibrotic tissue ingrowth. For this purpose, a specific equipment has been developed to produce non-woven PET mats made from fibers with small diameter. These mats were assembled with woven PET substrates using various assembling techniques in order to obtain hybrid fibrous constructions. The physical and mechanical properties of the obtained materials were assessed and valve samples were manufactured to be tested in vitro for hydrodynamic performances. The results show that the composite fibrous construction is characterized by properties suitable for the valve leaflet function, but the durability of the assembling is however limited under accelerated cyclic loading.

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Avvaru, Srinivasulu, N. Sriraam, V. S. Prakash, and Sarthak Sahoo. "Correction to: Wearable Ag-NyW textile electrode for continuous ECG monitoring." Research on Biomedical Engineering 37, no. 2 (May 11, 2021): 249. http://dx.doi.org/10.1007/s42600-021-00155-2.

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Journal articles on the topic 'Biomedical textile'

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