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Journal articles on the topic 'Intelligent Polymers'

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Author: Grafiati

Published: 4 June 2021

Last updated: 20 February 2023

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1

Andrade, J. D. "Polymers Have "Intelligent" Surfaces: Polymer Surface Dynamics." Journal of Intelligent Material Systems and Structures 5, no. 5 (September 1994): 612–18. http://dx.doi.org/10.1177/1045389x9400500503.

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2

Jingcheng, Li, Vundrala Sumedha Reddy, Wanasinghe A. D. M. Jayathilaka, Amutha Chinnappan, Seeram Ramakrishna, and Rituparna Ghosh. "Intelligent Polymers, Fibers and Applications." Polymers 13, no. 9 (April 28, 2021): 1427. http://dx.doi.org/10.3390/polym13091427.

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Intelligent materials, also known as smart materials, are capable of reacting to various external stimuli or environmental changes by rearranging their structure at a molecular level and adapting functionality accordingly. The initial concept of the intelligence of a material originated from the natural biological system, following the sensing–reacting–learning mechanism. The dynamic and adaptive nature, along with the immediate responsiveness, of the polymer- and fiber-based smart materials have increased their global demand in both academia and industry. In this manuscript, the most recent progress in smart materials with various features is reviewed with a focus on their applications in diverse fields. Moreover, their performance and working mechanisms, based on different physical, chemical and biological stimuli, such as temperature, electric and magnetic field, deformation, pH and enzymes, are summarized. Finally, the study is concluded by highlighting the existing challenges and future opportunities in the field of intelligent materials.

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3

Purohit, Arpana, Sameeksha Jain, Prakhar Nema, Harshna Vishwakarma, and Prateek Kumar Jain. "Intelligent or Smart Polymers: Advance in Novel Drug Delivery." Journal of Drug Delivery and Therapeutics 12, no. 5 (September 15, 2022): 208–16. http://dx.doi.org/10.22270/jddt.v12i5.5578.

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Novel drug delivery system utilizing smart polymer to get significant and attracting changes in the targeting of drugs, increasing the bioavailability of drugs, enhancement patient compliance and gene therapy. The scientific community tries to mimic nature in the way that living organisms adopt their behavior as a function of environmental conditions to improve survival. In this sense, smart polymers offer materials that respond to numerous stimuli (temperature, pH, electric and magnetic fields, light intensity, biological molecules, etc.), and scientists must devise the best way to apply them in all research areas. Smart polymers are representing promising means for targeted drug delivery, enhanced drug delivery, gene therapy, actuator stimuli and protein folders. Smart polymers are very promising applicants in drug delivery, tissue engineering, cell culture, gene carriers, textile engineering, oil recovery, radioactive wastage and protein purification. The study is focused on the entire features of smart polymers and their most recent and relevant applications. Keywords: Smart polymer, Novel drug delivery system, Stimuli, Gene therapy

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4

Kiparissides, C., and J. Morris. "Intelligent manufacturing of polymers." Computers & Chemical Engineering 20 (January 1996): S1113—S1118. http://dx.doi.org/10.1016/0098-1354(96)00193-7.

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5

Lin, Guo Min, Fang Yuan, and Yan Hua Li. "Current Situation and Latest Development of Intelligent Materials." Advanced Materials Research 989-994 (July 2014): 288–91. http://dx.doi.org/10.4028/www.scientific.net/amr.989-994.288.

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The background and design idea of the intelligent materials is introduced. Three elements of intelligent materials are given. Then based on classifying of intelligent materials, the features and applications of intelligent materials are researched.Principle and the latest applications of typical intelligent materials such as optical fiber, shape memory alloys, shape memory polymers, piezoelectric, magnetostrictive materials, fluid material and polymer colloid are analyzed simplely. The research difficulties and the future research focuses of intelligent material are pointed out.

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6

Ussia, Martina, and Martin Pumera. "Towards micromachine intelligence: potential of polymers." Chemical Society Reviews 51, no. 5 (2022): 1558–72. http://dx.doi.org/10.1039/d1cs00587a.

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This tutorial introduces the fundamental aspects of polymers and micromachines. It highlights the role of polymeric microrobots in formulating intelligent systems by critically reviewing key factors affecting motion and functionalities.

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7

Hoffman, Allan S. "Bioconjugates of Intelligent Polymers and Recognition Proteins for Use in Diagnostics and Affinity Separations." Clinical Chemistry 46, no. 9 (September 1, 2000): 1478–86. http://dx.doi.org/10.1093/clinchem/46.9.1478.

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Abstract Polymers that respond to small changes in environmental stimuli with large, sometimes discontinuous changes in their physical state or properties are often called “intelligent” or “smart” polymers. We have conjugated these polymers to different recognition proteins, including antibodies, protein A, streptavidin, and enzymes. These bioconjugates have been prepared by random polymer conjugation to lysine amino groups on the protein surface, and also by site-specific conjugation of the polymer to specific amino acid sites, such as cysteine sulfhydryl groups, that are genetically engineered into the known amino acid sequence of the protein. We have conjugated several different smart polymers to streptavidin, including temperature-, pH-, and light-sensitive polymers. The preparation of these conjugates and their many fascinating applications are reviewed here.

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8

Dinçer, S., M. Türk, and E. Pişkin. "Intelligent polymers as nonviral vectors." Gene Therapy 12, S1 (October 2005): S139—S145. http://dx.doi.org/10.1038/sj.gt.3302628.

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9

Morones-Ramírez, J. Rubén. "Coupling Metallic Nanostructures to Thermally Responsive Polymers Allows the Development of Intelligent Responsive Membranes." International Journal of Polymer Science 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/967615.

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Development of porous membranes capable of controlling flow or changing their permeability to specific chemical entities, in response to small changes in environmental stimuli, is an area of appealing research, since these membranes present a wide variety of applications. The synthesis of these membranes has been mainly approached through grafting of environmentally responsive polymers to the surface walls of polymeric porous membranes. This synergizes the chemical stability and mechanical strength of the polymer membrane with the fast response times of the bonded polymer chains. Therefore, different composite membranes capable of changing their effective pore size with environmental triggers have been developed. A recent interest has been the development of porous membranes responsive to light, since these can achieve rapid, remote, noninvasive, and localized flow control. This work describes the synthesis pathway to construct intelligent optothermally responsive membranes. The method followed involved the grafting of optothermally responsive polymer-metal nanoparticle nanocomposites to polycarbonate track-etched porous membranes (PCTEPMs). The nanoparticles coupled to the polymer grafts serve as the optothermal energy converters to achieve optical switching of the pores. The results of the paper show that grafting of the polymer andin situsynthesis of the metallic particles can be easily achieved. In addition, the composite membranes allow fast and reversible switching of the pores using both light and heat permitting control of fluid flow.

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10

Okano, Teruo. "Intelligent Polymers for Targetable Drug Therapy." Journal of Life Support Engineering 9, Supplement (1997): 19–21. http://dx.doi.org/10.5136/lifesupport.9.supplement_19.

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11

Ogata, Naoya. "Intelligent Polymers for Opto-Electronic Applications." Journal of Intelligent Material Systems and Structures 5, no. 5 (September 1994): 619–25. http://dx.doi.org/10.1177/1045389x9400500504.

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12

Hoffman, Allan S. "“Intelligent” Polymers in Medicine and Biotechnology." Artificial Organs 19, no. 5 (May 1995): 458–67. http://dx.doi.org/10.1111/j.1525-1594.1995.tb02359.x.

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13

Saunders, J. R., S. Abu-Salih, T. Khaleque, S. Hanula, and W. Moussa. "Modeling Theories of Intelligent Hydrogel Polymers." Journal of Computational and Theoretical Nanoscience 5, no. 10 (October 1, 2008): 1942–60. http://dx.doi.org/10.1166/jctn.2008.1001.

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14

Garnier, Francis. "Functionalized Conducting Polymers?Towards Intelligent Materials." Advanced Materials 1, no. 4 (1989): 117–21. http://dx.doi.org/10.1002/adma.19890010404.

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15

Garnier, Francis. "Functionalized Conducting Polymers—Towards Intelligent Materials." Angewandte Chemie 101, no. 4 (April 1989): 529–33. http://dx.doi.org/10.1002/ange.19891010447.

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16

Garnier, Francis. "Functionalized Conducting Polymers?Towards Intelligent Materials." Angewandte Chemie International Edition in English 28, no. 4 (April 1989): 513–17. http://dx.doi.org/10.1002/anie.198905131.

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17

Xiao, ChunSheng, HuaYu Tian, XiuLi Zhuang, XueSi Chen, and XiaBin Jing. "Recent developments in intelligent biomedical polymers." Science in China Series B: Chemistry 52, no. 2 (February 2009): 117–30. http://dx.doi.org/10.1007/s11426-008-0151-z.

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18

Hoffman, Allan S. "“intelligent” polymers in medicine and biotechnology." Macromolecular Symposia 98, no. 1 (July 1995): 645–64. http://dx.doi.org/10.1002/masy.19950980156.

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19

Coates, P. D., and R. G. Speight. "Towards Intelligent Process Control of Injection Moulding of Polymers." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 209, no. 5 (October 1995): 357–67. http://dx.doi.org/10.1243/pime_proc_1995_209_095_02.

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Steps towards process control of the complex, multi-variable injection moulding process are presented. In-process measurements, in particular melt and hydraulic pressures in the primary injection stage, are shown to provide a sensitive means of monitoring changes in the process and changes in the polymer feedstock. Correlations have been observed between real time process measurements, in the form of specific time integrals of melt and hydraulic pressure, and product quality measures, such as product weight or dimensions. The research has been validated in both scientific laboratory and factory studies, and for a range of polymers, injection moulding technologies and complexities of product. Such correlations, and the specific integrals upon which they are based, can therefore form the basis of meaningful statistical process control for injection moulding or a viable closed-loop control strategy.

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20

Wechsler, Marissa, and Mary Caldorera‐Moore. "Special Issue: Intelligent/responsive polymers as biomaterials." Journal of Applied Polymer Science 137, no. 25 (July 5, 2020): 49249. http://dx.doi.org/10.1002/app.49249.

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21

Md. Jewel Rana, Khan Rajib Hossain, ,. Xinle Yao, Md Abu Shyeed and Ummay Hani. "Study on 4D Printing Shape Memory Polymers in the Field of Biomedical Progress." International Journal for Modern Trends in Science and Technology 8, no. 12 (January 24, 2023): 128–36. http://dx.doi.org/10.46501/ijmtst0812020.

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Shape memory polymers are intelligent materials that produce shape changes under external stimulus conditions, and 4D printing is based on deformable materials and 3D printing. A comprehensive technology, shape memory polymer in deformable materials is the most widely used, and the current 4D printing shape memory polymer is in various collars. The domain has applications, especially in the biomedical field, which has excellent application value. 4D printing technology breaks through the personalized technology in traditional medicine. The bottleneck provides a new opportunity for the further development of the biomedical field. This article first reviews shape-memory polymers, 3D printing technology, and 4D printing. We will review the research progress of shape memory polymers at home and abroad and introduce examples of 4D printed shape memory polymers in biomedicine. Finally, the application prospects, existing problems, and future development directions of 4D printed shape memory polymers in the biomedical field are summarized

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22

Weal, Stephanie, Sheree Anderson, Ross Anderson, Trevor Stuthridge, and Alan Fernyhough. "Environmentally Intelligent Biocomposites." Advanced Materials Research 29-30 (November 2007): 255–58. http://dx.doi.org/10.4028/www.scientific.net/amr.29-30.255.

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Composites made from wood residues and biomasses, together with either conventional polymers such as polypropylene (PP) and their recyclate streams or with the new emerging biopolymers such as polylactic acid (PLA), were compounded and injection moulded. Mechanical properties and biodegradation analyses were undertaken. The addition of wood flour/sander dust (SD) and wood fibres (WF), to the PP, with suitable compatibilizer, increased the flexural and tensile modulus and strength, indicating a good bond between the fibres and matrix. The tensile and flexural strengths were decreased with the addition of wood fillers, additives and biomasses to a PLA biopolymer blend. Such biomasses and additives increased the biodegradation of the PLA blend, and some control over biodegradation rates was achievable.

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23

Fu, Yanjun, Kejian Chen, Shihao Li, Xiaofan Zhang, and Yao Wei. "The concealed intelligent switch based on 4D printed shape-memory polymers." Functional Materials Letters 13, no. 05 (July 2020): 2051029. http://dx.doi.org/10.1142/s1793604720510297.

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Concealed intelligent switches have significant potential for use in security and encryption applications. Recently, several four-dimensional (4D) printed intelligent devices have been designed and fabricated using 3D printing technologies and intelligent materials. These devices have demonstrated stupendous capabilities in smart switches and actuators. In this study, a concealable smart switch that combines a double spiral structure and smart materials is proposed. To achieve the desired performances, the fixity ratio is optimized to values more than 88% by comparing selected structures printed with common shape-memory materials. Furthermore, applications for non-contact circumstances without any control electric circuits (for example, hidden water valves) are also proposed. Results demonstrate that the outputs of the intelligent switches are related to their different input conditions, and the implementation rules can be further used as black box rules for security and encryption applications. Thus, intelligent devices manufactured using 4D printed shape-memory polymers can be applied in various fields such as in intelligent actuators and soft robots.

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24

Li, Lixian, Yongpeng He, Xiaodong Zheng, Lin Yi, and Weiqi Nian. "Progress on Preparation of pH/Temperature-Sensitive Intelligent Hydrogels and Applications in Target Transport and Controlled Release of Drugs." International Journal of Polymer Science 2021 (January 5, 2021): 1–14. http://dx.doi.org/10.1155/2021/1340538.

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Hydrogels with three-dimensional network structure, hydrophilic, and insoluble in water which are ideal carrier materials for intelligent drug delivery systems. Intelligent hydrogel has become a research frontier and hotspot because of its intelligence, high efficiency, safety, and convenience in drug controlled and prolonged release. It has a broad application prospect in the medicine and biomedicine fields and can lead the medicine fields into a new era of “precise treatment.” Based on the latest research progress, the main preparation methods of hydrogel and the development of the drug delivery system are briefly introduced. The most promising three intelligent hydrogels in the human physiological environment, namely, pH responsiveness, temperature responsiveness, and pH/temperature dual responsiveness, are emphatically reviewed. Their release mechanisms, targeting transport, and controlled-prolonged release of drug are also discussed. In addition, some suggestions for the main problems and future development were given.

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25

Tang, Shuangxi, Shayu Li, Liran Ma, and Yu Tian. "Photorheological fluids of azobenzene polymers for lubrication regulation." Friction 10, no. 7 (December 15, 2021): 1078–90. http://dx.doi.org/10.1007/s40544-021-0529-x.

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AbstractFluid viscosity is ubiquitous property and is of practical importance in intelligent fluids, industrial lubrication, and pipeline fluid transportation. Recently, there has been a surging interest in viscosity regulation. Here, we have developed a group of photorheological fluids by utilizing azobenzene polymers with a light-induced microstructure transformation. In this work, a photosensitive polymer with 4,4′-bis-hydroxyazobenzene as the main chain was designed and synthesized as a pivotal functional material. The sufficiently large structural difference under ultraviolet and near-infrared light makes it possible to regulate the viscosity of a polyethylene glycol solution. The viscosity of the photosensitive rheological fluids under ultraviolet light radiation is found to be up to 45.1% higher than that under near-infrared light radiation. To explore this intelligent lubricating technology, the friction regulation of ceramic sliding bearings was investigated utilizing photosensitive rheological fluids. Reversible friction regulation with a ratio of up to 3.77 has been achieved by the alternative irradiation of near-infrared and ultraviolet light, which can be attributed to the differences in mechanical properties and molecular structures under ultraviolet and near-infrared light according to both simulations and experiments. Such photorheological fluids will have promising applications in controllable lubrication, intelligent rheological fluids, and photosensitive dampers.

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26

Păușescu, Iulia, Diana-Maria Dreavă, Ioan Bîtcan, Raluca Argetoianu, Diana Dăescu, and Mihai Medeleanu. "Bio-Based pH Indicator Films for Intelligent Food Packaging Applications." Polymers 14, no. 17 (September 1, 2022): 3622. http://dx.doi.org/10.3390/polym14173622.

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The widespread concerns about the environmental problems caused by conventional plastic food packaging and food waste led to a growing effort to develop active and intelligent systems produced from renewable biodegradable polymers for food packaging applications. Among intelligent systems, the most widely used are pH indicators, which are generally based on a pH-sensitive dye incorporated into a solid support. The objective of this study was to develop new intelligent systems based on renewable biodegradable polymers and a new bio-inspired pH-sensitive dye. The structure of the dye was elucidated through FT-IR and 1D and 2D NMR spectroscopic analyses. UV-VIS measurements of the dye solutions at various pH values proved their halochromic properties. Their toxicity was evaluated through theoretical calculations, and no toxicity risks were found. The new anthocyanidin was used for the development of biodegradable intelligent systems based on chitosan blends. The obtained polymeric films were characterized through UV-VIS and FT-IR spectroscopy. Their thermal properties were assessed through a thermogravimetric analysis, which showed a better stability of chitosan–PVA–dye and chitosan–starch–dye films compared to those of chitosan–cellulose–dye films and the dye itself. The films’ sensitivity to pH variations was evaluated through immersion in buffer solutions with pH values ranging from 2 to 12, and visible color changes were observed.

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27

Riley, P. J., and G. G. Wallace. "Intelligent Chemical Systems Based on Conductive Electroactive Polymers." Journal of Intelligent Material Systems and Structures 2, no. 2 (April 1991): 228–38. http://dx.doi.org/10.1177/1045389x9100200207.

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28

Breunig, M., S. Bauer, and A. Goepferich. "Polymers and nanoparticles: Intelligent tools for intracellular targeting?" European Journal of Pharmaceutics and Biopharmaceutics 68, no. 1 (January 2008): 112–28. http://dx.doi.org/10.1016/j.ejpb.2007.06.010.

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29

Fahrenholz, H., and R. Strehle. "Intelligent and Reliable Testing." International Polymer Science and Technology 33, no. 11 (November 2006): 31–33. http://dx.doi.org/10.1177/0307174x0603301108.

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30

Tao, Ran, Qing-Sheng Yang, Xia Liu, Xiao-Qiao He, and Kim-Meow Liew. "Investigation of intelligent reversible diaphragm using shape memory polymers." Journal of Intelligent Material Systems and Structures 29, no. 7 (November 16, 2017): 1500–1509. http://dx.doi.org/10.1177/1045389x17740977.

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This article describes design and analysis of a novel reversible diaphragm using shape memory polymer. The reversible diaphragm could be applied to space engineering, such as propellant tank of rocket. The shape memory polymer diaphragm can automatically recover to the initial state after the overturning deformation and thus can be used repeatedly. A three-dimensional model is established to study the overturning and recovery behavior of the shape memory polymer diaphragm.The nonlinear finite element method based on the thermodynamic constitutive equations of shape memory polymer is used to obtain pressure -displacement relations and strain energy variation of SMP diaphragm with approximately hemispherical shape in the whole process of the overturning deformation. The influence of structural parameters and temperature on the overturning and recover behavior is discussed.

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31

Senceroglu, Sait, Mohamed Arselene Ayari, Tahereh Rezaei, Fardad Faress, Amith Khandakar, Muhammad E. H. Chowdhury, and Zanko Hassan Jawhar. "Constructing an Intelligent Model Based on Support Vector Regression to Simulate the Solubility of Drugs in Polymeric Media." Pharmaceuticals 15, no. 11 (November 14, 2022): 1405. http://dx.doi.org/10.3390/ph15111405.

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This study constructs a machine learning method to simultaneously analyze the thermodynamic behavior of many polymer–drug systems. The solubility temperature of Acetaminophen, Celecoxib, Chloramphenicol, D-Mannitol, Felodipine, Ibuprofen, Ibuprofen Sodium, Indomethacin, Itraconazole, Naproxen, Nifedipine, Paracetamol, Sulfadiazine, Sulfadimidine, Sulfamerazine, and Sulfathiazole in 1,3-bis[2-pyrrolidone-1-yl] butane, Polyvinyl Acetate, Polyvinylpyrrolidone (PVP), PVP K12, PVP K15, PVP K17, PVP K25, PVP/VA, PVP/VA 335, PVP/VA 535, PVP/VA 635, PVP/VA 735, Soluplus analyzes from a modeling perspective. The least-squares support vector regression (LS-SVR) designs to approximate the solubility temperature of drugs in polymers from polymer and drug types and drug loading in polymers. The structure of this machine learning model is well-tuned by conducting trial and error on the kernel type (i.e., Gaussian, polynomial, and linear) and methods used for adjusting the LS-SVR coefficients (i.e., leave-one-out and 10-fold cross-validation scenarios). Results of the sensitivity analysis showed that the Gaussian kernel and 10-fold cross-validation is the best candidate for developing an LS-SVR for the given task. The built model yielded results consistent with 278 experimental samples reported in the literature. Indeed, the mean absolute relative deviation percent of 8.35 and 7.25 is achieved in the training and testing stages, respectively. The performance on the largest available dataset confirms its applicability. Such a reliable tool is essential for monitoring polymer–drug systems’ stability and deliverability, especially for poorly soluble drugs in polymers, which can be further validated by adopting it to an actual implementation in the future.

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32

Lewis, T. W., and G. G. Wallace. "Communicative Polymers: The Basis for Development of Intelligent Material." Journal of Chemical Education 74, no. 6 (June 1997): 703. http://dx.doi.org/10.1021/ed074p703.

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33

Li, Dongxiang, Qiang He, and Junbai Li. "Smart core/shell nanocomposites: Intelligent polymers modified gold nanoparticles." Advances in Colloid and Interface Science 149, no. 1-2 (July 2009): 28–38. http://dx.doi.org/10.1016/j.cis.2008.12.007.

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34

Baughman, R. H. "Conducting polymers in redox devices and intelligent materials systems." Makromolekulare Chemie. Macromolecular Symposia 51, no. 1 (October 1991): 193–215. http://dx.doi.org/10.1002/masy.19910510117.

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35

Zhou, Huankai, Hongsheng Luo, Xingdong Zhou, Huaquan Wang, Yangrong Yao, Wenjing Lin, and Guobin Yi. "Healable, Flexible Supercapacitors Based on Shape Memory Polymers." Applied Sciences 8, no. 10 (September 25, 2018): 1732. http://dx.doi.org/10.3390/app8101732.

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Supercapacitors as novel and efficient energy storage devices could provide a higher power density and energy density compared to other electronics and devices. However, traditional supercapacitors are readily damaged, which leads to degraded performance or even failure. To make them more durable and efficient, healable flexible shape memory-based supercapacitors were unprecedentedly explored by a transfer process, in which the conductive nano-carbon networks were decorated with pseudocapacitance materials, followed by embedding them into a shape memory polymer matrix containing healing reagents. The composite exhibited flexibility, supercapacitance and self-healing capability originating from the shape memory effect and healing reagent. The morphologies, thermal, mechanical and capacitive properties, and the self-healability of the composite were investigated. In particular, the influence of the compositions on the healing efficiency was considered. The optimized composite exhibited good capacitance (27.33 mF cm−1), stability (only 4.08% capacitance loss after 1500 cycles) and healable property (up to 93% of the healing efficiency). The findings demonstrated how to endow the flexible polymeric electronics with healable bio-mimetic properties and may greatly benefit the application of intelligent polymers in the field of multi-functional electrical materials.

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36

Vilarinho, Fernanda, Malia Fátima Vaz, and Ana Sanches Silva. "The Use of Montmorillonite (MMT) in Food Nanocomposites: Methods of Incorporation, Characterization of MMT/Polymer Nanocomposites and Main Consequences in the Properties." Recent Patents on Food, Nutrition & Agriculture 11, no. 1 (April 29, 2020): 13–26. http://dx.doi.org/10.2174/2212798410666190401160211.

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Background: The clay Montmorillonite (MMT) is among the nanofillers more frequently used in food packaging. The uniform dispersion of nanoparticles in polymers confers considerable improvement of mechanical, thermal, optical, and/or barrier properties in polymer/clay nanocomposites. Objective: The aim is to ascertain the state of the art of the use of MMT for packaging purposes, with special emphasis on food applications. Methods: A literature review was carried out through recent papers and patents that focused on the incorporation of MMT in polymers. Results: This review emphasizes the interaction of MMT with polymers and their levels of incorporation in the nanocomposites. This work also highlights the analytical methodologies used for the characterization of the polymer/clay nanocomposites and the main consequences of the fillers in the properties of nanocomposites. Challenges remain about increasing the compatibility between clays and biopolymers to promote their utilization in food packaging. New strategies for immobilization of oxides, enzymes, essential oils, and other bioactive compounds are needed. Conclusion: MMT-based composite materials are promising to be used in intelligent and active packaging.

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37

Subramanian, Kumaran, Deivasigamani Balaraman, Kumaravel Kaliyaperumal, V. Devi Rajeswari, K. Balakrishnan, P. Ronald Ross, Elumalai Perumal, et al. "Preparation of an Intelligent pH Film Based on Biodegradable Polymers for Monitoring the Food Quality and Reducing the Microbial Contaminants." Bioinorganic Chemistry and Applications 2022 (June 20, 2022): 1–12. http://dx.doi.org/10.1155/2022/7975873.

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Hydrogel refers to a three-dimensional cross-linked polymeric network made of synthetic or natural polymers that can hold water in its porous structure. The inclusion of hydrophilic groups in the polymer chains, such as amino, carboxyl, and hydroxyl groups, contributes to the hydrogel’s water-holding ability. At physiological temperature and pH, these polymeric materials do not dissolve in water, but they do swell significantly in aqueous media. Hydrogel can be manufactured out of almost any water-soluble polymer, and it comes in a variety of chemical compositions and bulk physical properties. Hydrogel can also be made in a variety of ways. Hydrogel comes in a variety of physical shapes, including slabs, microparticles, nanoparticles, coatings, and films. Due to its ease of manufacture and self-application in clinical and fundamental applications, hydrogel has been widely exploited as a drug carrier. Contact lenses, artificial corneas, wound dressing, suture coating, catheters, and electrode sensors are some of the biomedical applications of hydrogels. The pigment color changes were observed from colorless to pale pink followed by dark reddish-pink. Anthocyanin was produced in large quantities and tested using a UV-visible spectrophotometer. At 450–550 nm, the largest peak (absorbance) was detected, indicating the presence of anthocyanin. The FTIR analysis of this study shows the different stretches of bonds at different peaks: 2918.309 (-C-H alkane stretch), 2812.12 (-C-H aldehyde weak intensity), 192320.37/cm (C-O bend), 21915.50, 2029.08/cm (-C=C arene group), 1906.94/cm (=C-H aromatics), 1797.78/cm (=C-H), 1707.94 (-C=O ketene), 1579.70, 1382.96 (C-H alkane strong bend), 889.18/cm (C-H aromatics plane bend), and 412.77/cm (-C-CI strong bond). The spectra of the PVA/chitosan film depict the peak’s formation: 1571.88, 1529.55, 1500.62/cm (C-H alkene strong bend), 1492.90, 1483.26, 1467.83/cm (C-H alkene strong bond), 670.48, 443.63, 412.77/cm (-O-H carboxylic acids with great intensity), 1708.93 (-C=O ketone), and 1656.0/cm (alkenyl C=C stretch strong bond).

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38

Zhu, Dong Yu, Zhan Peng Hong, Yan Min Xue, Xin Jie Chen, Lan Yue Zhang, Liang Gao, Yu Xuan Wang, Chu Fen Yang, and Jian Wei Guo. "Injectable, remoldable hydrogels with thermoresponsiveness, self-healing and cytocompatibility constructed via orthogonal assembly of well-defined star and linear polymers." Journal of Materials Chemistry B 7, no. 20 (2019): 3232–42. http://dx.doi.org/10.1039/c9tb00027e.

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Kabilan, Sujatha, Mahalakshmi Ayyasamy, Sridhar Jayavel, and Gunasekaran Paramasamy. "Pseudomonassp. as a Source of Medium Chain Length Polyhydroxyalkanoates for Controlled Drug Delivery: Perspective." International Journal of Microbiology 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/317828.

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Controlled drug delivery technology represents one of the most rapidly advancing areas of science. They offer numerous advantages compared to conventional dosage forms including improved efficacy, reduced toxicity, improved patient compliance and convenience. Over the past several decades, many delivery tools or methods were developed such as viral vector, liposome-based delivery system, polymer-based delivery system, and intelligent delivery system. Recently, nonviral vectors, especially those based on biodegradable polymers, have been widely investigated as vectors. Unlike the other polymers tested, polyhydroxyalkanoates (PHAs) have been intensively investigated as a family of biodegradable and biocompatible materials forin vivoapplications as implantable tissue engineering material as well as release vectors for various drugs. On the other hand, the direct use of these polyesters has been hampered by their hydrophobic character and some physical shortcomings, while its random copolymers fulfilled the expectation of biomedical researchers by exhibiting significant mechanical and thermal properties. This paper reviews the strategies adapted to make functional polymer to be utilized as delivery system.

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Khodja, Fouad, Younes Mimoun, and Riad Lakhdar Kherfane. "The Streamers Dynamics Study by an Intelligent System Based on Neural Networks." International Journal of Neural Networks and Advanced Applications 8 (March 19, 2021): 1–5. http://dx.doi.org/10.46300/91016.2021.8.1.

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The formation and propagation of streamers is an important precursor to determine the characteristics of electrical breakdown of many HV electrode configurations. Understanding of the study of the interaction between the polymer surface and the development process of the streamer is of major importance when we want to improve internal and external performance insulation systems. In this context, a numerical tool using neural networks is developed. This model allows evaluating the speed of streamers as a function of the amplitude of voltage initiation and the nature of the insulating materials. For this, a database was created to train the neural model from a laboratory model. This investigation builds a database for predicting the propagation of streamers on the polymers surface by different neuronal methods and this presents an interesting tool for estimating the propagation phenomena in functions of very important parameters

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Chundawat, Narendra Singh, Nishigandh Pande, Ghasem Sargazi, Mazaher Gholipourmalekabadi, and Narendra Pal Singh Chauhan. "Structure-properties relationship for energy storage redox polymers: a review." Journal of Polymer Engineering 40, no. 5 (May 26, 2020): 373–93. http://dx.doi.org/10.1515/polyeng-2019-0395.

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AbstractRedox-active polymers among the energy storage materials (ESMs) are very attractive due to their exceptional advantages such as high stability and processability as well as their simple manufacturing. Their applications are found to useful in electric vehicle, ultraright computers, intelligent electric gadgets, mobile sensor systems, and portable intelligent clothing. They are found to be more efficient and advantageous in terms of superior processing capacity, quick loading unloading, stronger security, lengthy life cycle, versatility, adjustment to various scales, excellent fabrication process capabilities, light weight, flexible, most significantly cost efficiency, and non-toxicity in order to satisfy the requirement for the usage of these potential applications. The redox-active polymers are produced through organic synthesis, which allows the design and free modification of chemical constructions, which allow for the structure of organic compounds. The redox-active polymers can be finely tuned for the desired ESMs applications with their chemical structures and electrochemical properties. The redox-active polymers synthesis also offers the benefits of high-scale, relatively low reaction, and a low demand for energy. In this review we discussed the relationship between structural properties of different polymers for solar energy and their energy storage applications.

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Shu-Ping, JIN, LIU Ming-Zhu, CHEN Shi-Lan, BIAN Feng-Ling, CHEN Yong, WANG Bin, ZHAN Fa-Lu, and LIU Shou-Xin. "Responsive Properties and Applications of the Intelligent Polymers and Hydrogels." Acta Physico-Chimica Sinica 23, no. 03 (2007): 438–46. http://dx.doi.org/10.3866/pku.whxb20070330.

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Du, Fu-Sheng, Yang Wang, Rui Zhang, and Zi-Chen Li. "Intelligent nucleic acid delivery systems based on stimuli-responsive polymers." Soft Matter 6, no. 5 (2010): 835–48. http://dx.doi.org/10.1039/b915020j.

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Garnier, Francis, Hafsa Korri-Youssoufi, Pratima Srivastava, Bernard Mandrand, and Thierry Delair. "Toward intelligent polymers: DNA sensors based on oligonucleotide-functionalized polypyrroles." Synthetic Metals 100, no. 1 (March 1999): 89–94. http://dx.doi.org/10.1016/s0379-6779(98)00169-6.

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Sharma, Piyush Sindhu, Zofia Iskierko, Agnieszka Pietrzyk-Le, Francis D'Souza, and Wlodzimierz Kutner. "Bioinspired intelligent molecularly imprinted polymers for chemosensing: A mini review." Electrochemistry Communications 50 (January 2015): 81–87. http://dx.doi.org/10.1016/j.elecom.2014.11.019.

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Shea, J. J. "Conductive electroactive polymers: intelligent materials systems, 2nd ed. [Book Review]." IEEE Electrical Insulation Magazine 20, no. 2 (March 2004): 52. http://dx.doi.org/10.1109/mei.2004.1283276.

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Holmes, Mark. "“Active and intelligent”." Plastics, Additives and Compounding 6, no. 2 (March 2004): 3. http://dx.doi.org/10.1016/s1464-391x(04)00109-6.

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Uzunbacak, Hasan Hüseyin, Tuğba Erhan, and Tahsin Akçakanat. "Emotionally Intelligent Employees’ Work Outcomes: The Mediating Role of Organizational Commitment." ETIKONOMI 21, no. 1 (March 16, 2022): 11–40. http://dx.doi.org/10.15408/etk.v21i1.20541.

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The present study examines the effect of emotional intelligence on turnover intention and organizational indifference, noting the mediating role of organizational commitment. The current model of the study is considered one of the first attempts in examining these variables in the tourism industry. The structural equation modeling has been used to analyze the sample consisting of hotel department managers who have direct contact with the customers. According to the research results, emotional intelligence and organizational commitment decrease turnover intention and organizational indifference of the hotel department managers. In addition, emotional intelligence has been positively associated with the employees' organizational commitment. Finally, it has been found that organizational commitment mediates the effect of emotional intelligence on turnover intention and organizational indifference. Managers at the hotels should have the high emotional intelligence to establish empathy and perseverance to avoid being indifferent. In order to do this, hotel managers’ commitment should be increased to perceive their job as their own.How to Cite:Uzunbacak, H. H., Erhan, T., & Ak akanat, T. (2022). Emotionally Intelligent Employees’ Work Outcomes: The Mediating Role of Organizational Commitment. Etikonomi, 21(1), 11-40. https://doi.org/10.15408/etk.v21i1.20541

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Xia, Hongyan, Tingkuo Chen, Chang Hu, and Kang Xie. "Recent Advances of the Polymer Micro/Nanofiber Fluorescence Waveguide." Polymers 10, no. 10 (September 30, 2018): 1086. http://dx.doi.org/10.3390/polym10101086.

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Subwavelength optical micro/nanofibers have several advantages, such as compact optical wave field and large specific surface area, which make them widely used as basic building blocks in the field of micro-nano optical waveguide and photonic devices. Among them, polymer micro/nanofibers are among the first choices for constructing micro-nano photonic components and miniaturized integrated optical paths, as they have good mechanical properties and tunable photonic properties. At the same time, the structures of polymer chains, aggregated structures, and artificial microstructures all have unique effects on photons. These waveguided micro/nanofibers can be made up of not only luminescent conjugated polymers, but also nonluminous matrix polymers doped with luminescent dyes (organic and inorganic luminescent particles, etc.) due to the outstanding compatibility of polymers. This paper summarizes the recent progress of the light-propagated mechanism, novel design, controllable fabrication, optical modulation, high performance, and wide applications of the polymer micro/nanofiber fluorescence waveguide. The focus is on the methods for simplifying the preparation process and modulating the waveguided photon parameters. In addition, developing new polymer materials for optical transmission and improving transmission efficiency is discussed in detail. It is proposed that the multifunctional heterojunctions based on the arrangement and combination of polymer-waveguided micro/nanofibers would be an important trend toward the construction of more novel and complex photonic devices. It is of great significance to study and optimize the optical waveguide and photonic components of polymer micro/nanofibers for the development of intelligent optical chips and miniaturized integrated optical circuits.

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Okano, Teruo. "Thermo-Intelligent Surfaces for Cell Culture." Advances in Science and Technology 53 (October 2006): 70–73. http://dx.doi.org/10.4028/www.scientific.net/ast.53.70.

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In order to avoid several complications resulted from biodegradable scaffolds or single cell injection, we have developed “cell sheet engineering”. Our concept is novel tissue reconstruction not from single cells but from cell sheets. In order to prepare cell sheets, temperature-responsive culture dishes are utilized. Since temperature-responsive polymers are covalently grafted on the dishes, various types of cells adhere and proliferate on them at 37°C, but are spontaneously detached only by reducing temperature below 32°C without any need for proteolytic enzyme. All the confluent cells are noninvasively harvested as a single contiguous cell sheets with intact cell-cell junctions and deposited extracellular matrix. We have utilized these harvested cell sheets for various tissue reconstructions including ocular surfaces, periodontal ligament, cardiac patches as well as bladder.

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