Relevant bibliographies by topics / Alginate microfiber

Academic literature on the topic 'Alginate microfiber'

Author: Grafiati
Published: 30 May 2022
Last updated: 31 May 2022

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Journal articles on the topic "Alginate microfiber"

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Yokomizo, Akiyo, Yuya Morimoto, Keigo Nishimura, and Shoji Takeuchi. "Temporal Observation of Adipocyte Microfiber Using Anchoring Device." Micromachines 10, no. 6 (May 29, 2019): 358. http://dx.doi.org/10.3390/mi10060358.

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In this paper, we propose an anchoring device with pillars to immobilize an adipocyte microfiber that has a fiber-shaped adipocyte tissue covered by an alginate gel shell. Because the device enabled the immobilization of the microfiber in a culture dish even after its transportation and the exchange of the culture medium, we can easily track the specific positions of the microfiber for a long period. Owing to the characteristics of the anchoring device, we successfully performed temporal observations of the microfiber on the device for a month to investigate the function and morphology of three-dimensional cultured adipocytes. Furthermore, to demonstrate the applicability of the anchoring device to drug testing, we evaluated the lipolysis of the microfiber’s adipocytes by applying reagents with an anti-obesity effect. Therefore, we believe that the anchoring device with the microfiber will be a useful tool for temporal biochemical analyses.
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Keaswejjareansuk, Wisawat, Somrudee Keawmaloon, Nuttawat Sawangrat, Satit Puttipipatkhachorn, Teerapong Yata, Phornphimon Maitarad, Liyi Shi, Mattaka Khongkow, and Katawut Namdee. "Degradable alginate hydrogel microfiber for cell-encapsulation based on alginate lyase loaded nanoparticles." Materials Today Communications 28 (September 2021): 102701. http://dx.doi.org/10.1016/j.mtcomm.2021.102701.

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Nosova, N. G., O. V. Maikovych, О. Yu Bordeniuk, M. V. Yakoviv, and S. M. Varvarenko. "Reinforcement of alginate-gelatin hydrogel using functionalized polypropylene microfiber." Chemistry, Technology and Application of Substances 3, no. 1 (June 1, 2020): 232–38. http://dx.doi.org/10.23939/ctas2020.01.232.

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Dragoj, Miodrag, Jasmina Stojkovska, Tijana Stanković, Jelena Dinić, Ana Podolski-Renić, Bojana Obradović, and Milica Pešić. "Development and Validation of a Long-Term 3D Glioblastoma Cell Culture in Alginate Microfibers as a Novel Bio-Mimicking Model System for Preclinical Drug Testing." Brain Sciences 11, no. 8 (July 31, 2021): 1025. http://dx.doi.org/10.3390/brainsci11081025.

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Background: Various three-dimensional (3D) glioblastoma cell culture models have a limited duration of viability. Our aim was to develop a long-term 3D glioblastoma model, which is necessary for reliable drug response studies. Methods: Human U87 glioblastoma cells were cultured in alginate microfibers for 28 days. Cell growth, viability, morphology, and aggregation in 3D culture were monitored by fluorescent and confocal microscopy upon calcein-AM/propidium iodide (CAM/PI) staining every seven days. The glioblastoma 3D model was validated using temozolomide (TMZ) treatments 3 days in a row with a recovery period. Cell viability by MTT and resistance-related gene expression (MGMT and ABCB1) by qPCR were assessed after 28 days. The same TMZ treatment schedule was applied in 2D U87 cell culture for comparison purposes. Results: Within a long-term 3D model system in alginate fibers, U87 cells remained viable for up to 28 days. On day 7, cells formed visible aggregates oriented to the microfiber periphery. TMZ treatment reduced cell growth but increased drug resistance-related gene expression. The latter effect was more pronounced in 3D compared to 2D cell culture. Conclusion: Herein, we described a long-term glioblastoma 3D model system that could be particularly helpful for drug testing and treatment optimization.
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Kim, Byung, Intae Kim, WooSeok Choi, Sung Won Kim, JooSung Kim, and Geunbae Lim. "Fabrication of Cell-Encapsulated Alginate Microfiber Scaffold Using Microfluidic Channel." Journal of Manufacturing Science and Engineering 130, no. 2 (2008): 021016. http://dx.doi.org/10.1115/1.2898576.

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ZHANG, XULANG, and JIANHUA QIN. "MODIFIED ALGINATE/CHITOSAN HOLLOW MICROFIBER AS A BIOCOMPATIBLE FRAME FOR BLOOD VESSEL RECONSTRUCTION." Nano LIFE 02, no. 04 (December 2012): 1242005. http://dx.doi.org/10.1142/s1793984412420056.

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We presented a new approach to produce Chitosan–Glutaraldehyde–Chitosan–Alginate (CGCA) hollow fiber with the capability of cell capture and adhesion for vascular tissue engineering. The CGCA hollow fiber was generated by sacrificing the inner part of alginate/chitosan (A/C) solid fiber using sodium citrate, followed by glutaraldehyde (GA) cross-linking chitosan to form stable imine bonds on the fiber surface. Furthermore, human umbilical vein endothelial cells (HUVEC) were captured by the CGCA hollow fiber surface and adhesive as layer pattern with good viability and normal morphology. This strategy facilitated the lumen structure formation with good biocompatibility by biomaterials modification, providing a promising and facile technique for blood vessel regeneration in vitro and in vivo.
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Zhao, Junyi, Wei Xiong, Ning Yu, and Xing Yang. "Continuous Jetting of Alginate Microfiber in Atmosphere Based on a Microfluidic Chip." Micromachines 8, no. 1 (January 4, 2017): 8. http://dx.doi.org/10.3390/mi8010008.

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Liu, Hui, Yaqing Wang, Yue Yu, Wenwen Chen, Lei Jiang, and Jianhua Qin. "Simple fabrication of inner chitosan‐coated alginate hollow microfiber with higher stability." Journal of Biomedical Materials Research Part B: Applied Biomaterials 107, no. 8 (February 19, 2019): 2527–36. http://dx.doi.org/10.1002/jbm.b.34343.

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Leong, Meng Fatt, Hong Fang Lu, Tze Chiun Lim, Karthikeyan Narayanan, Shujun Gao, Luna Yue Wang, Rebecca P. K. Toh, et al. "Alginate Microfiber System for Expansion and Direct Differentiation of Human Embryonic Stem Cells." Tissue Engineering Part C: Methods 22, no. 9 (September 2016): 884–94. http://dx.doi.org/10.1089/ten.tec.2015.0561.

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Ran, Yang, Peng Xiao, Yongkang Zhang, Deming Hu, Zhiyuan Xu, Lili Liang, and Bai-Ou Guan. "A Miniature pH Probe Using Functional Microfiber Bragg Grating." Optics 1, no. 2 (August 11, 2020): 202–12. http://dx.doi.org/10.3390/opt1020016.

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Operando and precisely probing aqueous pH is fundamentally demanded, both in chemical and biological areas. Conventional pH probes, subjected to the larger size, are probably unfit for application in some extreme scenarios, such as a trace amount of samples. In this paper, we have further developed the pH sensor that leverages the microfiber Bragg grating with an ultra-compact size down to an order of magnitude of 10−14 m3. Using the electrostatic self-assembly layer-by-layer technique, the functional film consisting of sodium alginate, which harnesses a pH-dependent hygroscopicity, is immobilized on the fiber surface. Consequently, the alteration of aqueous pH could be quantitatively indicated by the wavelength shift of the grating resonance via the refractive index variation of the sensing film due to the water absorption or expulsion. The grating reflections involving fundamental mode and higher order mode exhibit the sensitivities of −72 pm/pH and −265 pm/pH, respectively. In addition, temperature compensation can be facilitated by the recording of the two reflections simultaneously. Furthermore, the modeling and simulation results predict the pivotal parameters of the configuration in sensitivity enhancement. The proposed proof-of-concept enriches the toolbox of pH sensor for catering to the need of detection in some extremely small spaces—for example, the living cells or the bio-tissues.
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Dissertations / Theses on the topic "Alginate microfiber"

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Avakian, A. "3D-bioprinting system for fabrication of alginate microfibers." Thesis, АНПРЭ, ХНУРЭ, Издательство «Точка», 2017. http://openarchive.nure.ua/handle/document/4074.

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The given work is devoted to the theme of 3D-printing of alginate microfibers with encapsulated stem cells which are used for the nerve regeneration. The motorized printing device is developed and tested. The appropriate software controls the device and allows to design the printing structures.
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STEELE, JOSEPH ALLAN MCKINNON. "Encapsulation of Protein Microfiber Networks Supporting Pancreatic Islets." Thesis, 2011. http://hdl.handle.net/1974/6667.

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A method was developed to produce and incorporate a network of discrete, genipin-crosslinked gelatin microfibers around a pancreatic islet within a barium alginate microcapsule. This technique allows for the encapsulation of a porous fibrous matrix without the geometrical restrictions required for cellular aggregate seeding. Microfibers were produced from a novel vortex-drawn extrusion system with an alginate support matrix. Optimization culminated in a hydrated fiber diameter of 22.3 ± 0.4 μm, a 98% reduction in cross sectional area, while making the process more reliable and less labour intensive. The optimized microfibers were encapsulated at 40 vol% within 294 ± 4 μm 1.6% barium alginate microparticles by an electrostatic-mediated dropwise extrusion system. Pancreatic islets extracted from Sprague Dawley rats were encapsulated within the microparticles, and analyzed over a 21-day preliminary in vitro study. Acridine orange and propidium iodide fluorescent viability staining and light microscopy indicated a significant increase in viability for the fiber-laden particles relative to fiber-free control particles at days 7, 14, and 21. The fiber-laden system also reduced the incidence of disrupted islet cohesion from 31% to 8% at day 21, and showed evidence of islet-fiber adhesion. Preliminary investigations into insulin secretion and metabolic activity showed no significant difference between test and control groups. Further investigation into benefits of islet encapsulation within an extracellular matrix fiber network will be the subject of future studies with this body of work serving as a foundation. The system developed in this investigation could be developed into a modular scaffold system for tissue engineering beyond the field of islet research.
Thesis (Master, Chemical Engineering) -- Queen's University, 2011-08-18 15:05:50.917
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Conference papers on the topic "Alginate microfiber"

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Hu, Chengzhi, Masahiro Nakajima, Huaping Wang, Tao Yue, Yajing Shen, Masaru Takeuchi, Qiang Huang, Minoru Seki, and Toshio Fukuda. "Magnetic manipulation for spatially patternel alginate hydrogel microfibers." In 2013 IEEE 13th International Conference on Nanotechnology (IEEE-NANO). IEEE, 2013. http://dx.doi.org/10.1109/nano.2013.6721032.

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Yoo, Imsung, Jeesoo Lee, and Simon Song. "Development of Polydiacetylene-Embedded Microfibers Using 3-D Hydrodynamic Focusing Technique." In ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajk2011-36011.

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Polydiacetylene (PDA), conjugated polymer, is an attractive sensor material that has a unique optical property to transform its color from visible blue to fluorescent red upon environmental perturbations like heat, pH, specific metal ions, and etc. In this study, we propose a novel method to detect metal ions by using polydiacetylene (PDA)-embedded sensor microfibers fabricated with a 3-D hydrodynamic focusing technique using alginate and calcium solutions. Moreover, by changing the head groups of PDA, we successfully detected Al3+ and Zn2+ ions up to 1mM using PDA micro fibers.
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Sun, Tao, Qiang Huang, Qing Shi, Huaping Wang, Masahiro Nakajima, and Toshio Fukuda. "Three-dimensional magnetic assembly of alginate microfibers using microfluidic “printing” method." In 2015 IEEE International Conference on Robotics and Automation (ICRA). IEEE, 2015. http://dx.doi.org/10.1109/icra.2015.7139564.

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