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Journal articles on the topic 'Polymer hydrogel matrix'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Najreen, Bee* Nazneen Dubey Rupanshi Sahu Bharti choudhary. "A Comprehensive Review On Hydrogel." International Journal in Pharmaceutical Sciences 2, no. 10 (2024): 583–94. https://doi.org/10.5281/zenodo.13921223.

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A hydrogel is a water-insoluble three-dimensional polymer network that has the ability to absorb body fluids in a biological environment. Such a polymer network is formed through chemical crosslinking mechanisms such as optical polymerization, enzymatic reactions and physical crosslinking such as temperature and pH dependent processes and ionic crosslinking. Physical hydrogels are formed through weak secondary force and chemical hydrogels are formed by covalent forces. Various polymers of natural and synthetic origin are used to make hydrogels. Swelling, mechanical properties and biological pr

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2

Azady, Md Arif Roman, Sony Ahmed, and Md Shafiul Islam. "A review on polymer nanocomposite hydrogel preparation, characterization, and applications." European Journal of Chemistry 12, no. 3 (2021): 329–39. http://dx.doi.org/10.5155/eurjchem.12.3.329-339.2100.

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Nanocomposite hydrogels, made by incorporating nanoparticles into a hydrogel matrix, have been developed to fulfill the need for materials with enhanced and predictable mechanical properties and functionality. This review breaks down the process of preparing and characterizing nanocomposite hydrogels and looks at the various applications they can be used for. Through careful selection of the nanoparticle and hydrogel types, as well as the preparation method, the degree of crosslinking and the strength of the intermolecular interactions between the nanoparticles and the hydrogel matrix can be c

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Zinchenko, О. V., V. D. Ezhova, and A. L. Tolstov. "SILICON-CONTAINING OLIGOMERIC AZOINITIATORS IN THE SYNTHESIS OF BLOCK COPOLYMERS." Polymer journal 43, no. 2 (2021): 133–42. http://dx.doi.org/10.15407/polymerj.43.02.133.

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A solvothermal synthetic pathway and functional polymer styabilizers was used for synthesis of fine silver structures of different architecture. Using polyvinylpyrrolidone as a stabilizer silver micronized wires with a diameter of 3,8–4,2 μm and aspect ratio of up to 30 were prepared. XRD technique was applied for qualitative determination of silver metal structures. New thermoresponse composite hydrogels with a structure of semi-IPNs were prepared from cross-linked polyvinyl alcohol, linear highly hydrophilic poly(2-ethyl-2-oxazoline) (PEtOx) and as-synthesized silver micro-sized wires. Effec

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Xing, Wenjin, Amin Jamshidi Ghahfarokhi, Chaoming Xie, Sanaz Naghibi, Jonathan A. Campbell, and Youhong Tang. "Mechanical Properties of a Supramolecular Nanocomposite Hydrogel Containing Hydroxyl Groups Enriched Hyper-Branched Polymers." Polymers 13, no. 5 (2021): 805. http://dx.doi.org/10.3390/polym13050805.

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Owing to highly tunable topology and functional groups, hyper-branched polymers are a potential candidate for toughening agents, for achieving supramolecular interactions with hydrogel networks. However, their toughening effects and mechanisms are not well understood. Here, by means of tensile and pure shear testings, we characterise the mechanics of a nanoparticle–hydrogel hybrid system that incorporates a hyper-branched polymer (HBP) with abundant hydroxyl end groups into the matrix of the polyacrylic acid (PAA) hydrogel. We found that the third and fourth generations of HBP are more effecti

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Prabhakar, Reetu, and Devendra Kumar. "Studies on Polyacrylate-Starch/Polyaniline Conducting Hydrogel." Current Smart Materials 4, no. 1 (2019): 36–44. http://dx.doi.org/10.2174/2405465804666190313154427.

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Background: The superabsorbent polymers based conducting hydrogel such as polyaniline impregnated polyacrylate-starch hydrogel were synthesized via two -steps interpenetrating polymer network process. In the present work instead of using a synthetic polymer of acrylamide, a biodegradable polymer such as starch has been used with polyacrylate superabsorbent polymer. The main attempt of this work is to analyze the electrical conductivity of resulting hydrogel at varying concentrations of crosslinker, initiator, monomer, and a copolymer for improving the properties of synthesized hydrogel and ela

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Uppuluri, Varuna Naga Venkata Arjun, and T. S. Shanmugarajan. "Icariin-Loaded Polyvinyl Alcohol/Agar Hydrogel: Development, Characterization, and In Vivo Evaluation in a Full-Thickness Burn Model." International Journal of Lower Extremity Wounds 18, no. 3 (2019): 323–35. http://dx.doi.org/10.1177/1534734619849982.

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Tissue regeneration has become a promising strategy for repairing damaged skin tissues. Among the hydrogels for tissue regeneration applications, topical hydrogels have demonstrated great potential for use as 3D-scaffolds in the burn wound healing process. Currently, no report has been published specifically on icariin-loaded polyvinyl alcohol (PVA)/agar hydrogel on full-thickness burn wounds. In the present study, burn tissue regeneration based on biomimetic hydrogel scaffolds was used for repairing damaged extracellular matrix. Furthermore, a skin burn model was developed in rats, and the ic

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Maikovych, O. V., I. A. Dron, N. M. Bukartyk, O. Yu Bordeniuk та N. G. Nosova. "Іnvestigation of gel formation peculiarities and properties of hydrogels obtained by the structuring of acrylamide prepolymers". Chemistry, Technology and Application of Substances 4, № 1 (2021): 179–85. http://dx.doi.org/10.23939/ctas2021.01.179.

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The paper represents the results of the investigation of the formation of a polymeric matrix of hydrogel due to the structuring of polyacrylamide using its reactive polymeric derivative – poly-N- (hydroxymethyl) acrylamide. Research determined zones of optimum conditions of synthesis and characterized hydrogel depending on pH of media, the ratio between the concentration of prepolymers, and time of synthesis. The investigation of the reaction mixture showed that the hydrogen index of the synthesis of hydrogels is one of the important factors, which in the design of the polymer framework of hyd

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8

Han, Yuanyuan, Lu Sun, Chenyu Wen, Zhaohui Wang, Jianwu Dai, and Liyang Shi. "Flexible conductive silk-PPy hydrogel toward wearable electronic strain sensors." Biomedical Materials 17, no. 2 (2022): 024107. http://dx.doi.org/10.1088/1748-605x/ac5416.

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Abstract Conductive hydrogels have been studied as promising materials for the flexible and wearable bioelectronics, because of their unique electrical and mechanical properties. Addition of conducting polymers in biomaterial-based hydrogel matrix is a simple yet effective way to construct hydrogels with good conductivity and flexibility. In this work, a conductive hydrogel composed by a silk hydrogel and a conducting polymer, polypyrrole (PPy), is developed via in situ polymerization of pyrrole into the silk fibroin network. The silk-PPy hydrogel shows high conductivity (26 S m−1), as well as

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9

Arabpour, Zohreh, Majid Salehi, Seungwon An, et al. "Exploring Hydrogel Nanoparticle Systems for Enhanced Ocular Drug Delivery." Gels 10, no. 9 (2024): 589. http://dx.doi.org/10.3390/gels10090589.

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Drug delivery to the ocular system is affected by anatomical factors like the corneal epithelium, blinking reflex, aqueous blood barrier, and retinal blood barrier, which lead to quick removal from the site and inefficient drug delivery. Developing a drug delivery mechanism that targets specific eye tissue is a major hurdle for researchers. Our study examines the challenges of drug absorption in these pathways. Hydrogels have been researched as a suitable delivery method to overcome some obstacles. These are developed alone or in conjunction with other technologies, such as nanoparticles. Many

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Sari, Repita, Sri Mulijani, and Meri Suhartini. "Improvement of PVA-Glucomanan-Acrylamide Hydrogel as Base Material of Immobilization." Jurnal Kimia Valensi 8, no. 1 (2022): 1–9. http://dx.doi.org/10.15408/jkv.v8i1.20332.

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Hydrogel products are currently widely used in various fields, one of which is agriculture. Most hydrogels are made of synthetic polymers because they have good absorption but are not biodegradable. Glucomannan is a natural polymer that is able to absorb large amounts of water and biodegradable but it is difficult to maintain water content. One method to improve the mechanical properties of hydrogels is by modifying the hydrogels through the formation of an interpenetrating network (IPN) between natural polymers and synthetic polymers. In this study, the IPN hydrogel based on polyvinyl alcohol

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Lopes, Pompilia Mioara, Radu Fechete, Felicia Minteuan, et al. "The Influence of Lyophilization Pretreatment and Whey Content on Whey and Gelatin-Based Hydrogels." Gels 10, no. 4 (2024): 229. http://dx.doi.org/10.3390/gels10040229.

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Whey and gelatin, natural polymers within the protein category, find widespread use in hydrogel formulations applied across the food, medical, and pharmaceutical industries. This study presents new characteristics of hydrogels based on whey, gelatin, and copper sulfate as a consequence of the additional steps in the preparation method, specifically refrigeration and freezing storage followed by lyophilization. The water state in hydrogels prior to lyophilization impacts the morphological appearance, with refrigerated hydrogels exhibiting a more regular and dense pore distribution, as shown by

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12

Bibire, Tudor, Radu Dănilă, Cătălina Natalia Yilmaz, et al. "In Vitro Biological Evaluation of an Alginate-Based Hydrogel Loaded with Rifampicin for Wound Care." Pharmaceuticals 17, no. 7 (2024): 943. http://dx.doi.org/10.3390/ph17070943.

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We report a biocompatible hydrogel dressing based on sodium alginate-grafted poly(N-vinylcaprolactam) prepared by encapsulation of Rifampicin as an antimicrobial drug and stabilizing the matrix through the repeated freeze–thawing method. The hydrogel structure and polymer-drug compatibility were confirmed by FTIR, and a series of hydrogen-bond-based interactions between alginate and Rifampicin were identified. A concentration of 0.69% Rifampicin was found in the polymeric matrix using HPLC analysis and spectrophotometric UV–Vis methods. The hydrogel’s morphology was evaluated by scanning elect

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13

Kumar Soni, Rakesh, Shailesh M Kewatkar, Vidhi Jain, and Manmeet Singh Saluja. "A Review of Hydrogels, with its Properties and Applications in Medicine." Journal of Biomedical and Pharmaceutical Research 12, no. 2 (2023): 20–33. http://dx.doi.org/10.32553/jbpr.v12i2.970.

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A hydrogel is an insoluble in water three-dimensional polymer network that has the potential to absorb bodily fluids in a biological setting. Hydrogels may also be used in medical applications. Chemical crosslinking mechanisms such as optical polymerization, enzymatic reactions, and physical crosslinking mechanisms such as temperature- and pH-dependent processes, as well as ionic crosslinking, are all responsible for the formation of a network of polymers of this kind. Both physical and chemical hydrogels may be generated by the application of weak secondary forces, but chemical hydrogels can

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14

Rahmi Luthfianti, Halida, William Xaveriano Waresindo, Marathur Rodhiyah, et al. "Investigating the Physical Characteristics of Starch/Gelatin Hydrogels using Freezing-Thawing Method." Journal of Physics: Conference Series 2973, no. 1 (2025): 012015. https://doi.org/10.1088/1742-6596/2973/1/012015.

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Abstract Three-dimensional polymer networks with water absorption, insolubility, elasticity, and biocompatibility—hydrogels—showcase applied in hydrogel synthesis, the freezing-thawing is a hydrogel synthesis method able to generate stable structures and non toxicity materials. Starch is a biopolymer non toxic that addresses environmental contamination compared to synthetic polymers. This study is a starch-based hydrogel with gelatin variations (SGE), each designated SGE1, SGE2, SGE3, SGE4, and SGE5. The cross-linking and porous structure of was suggested by morphological investigations. The h

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15

Keating, Connor J., Jadyn C. Dominguez, Jason J. Keleher, and Sarah E. Powers. "Conductive Polymer Functionalization of Cellulose Derived Hydrogels with Bio-Sensing Applications." ECS Meeting Abstracts MA2025-01, no. 62 (2025): 3032. https://doi.org/10.1149/ma2025-01623032mtgabs.

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Two derivatives, carboxymethyl cellulose (CMC) and hydroxyethyl cellulose (HEC), contain functional groups suitable for chemical modification, specifically hydroxyl, carboxyl, or hydroxyethyl substituents. These derivatives are subject to polymerization via etherification to produce alternating polymeric chains (CMC-HEC-CMC) that can then be crosslinked through the addition of a dicarboxylic acid, specifically citric acid. It has been reported that due to the covalent bond formation at three different carboxyl sites, citric acid is an ideal crosslinking, capable of primary (covalent) and secon

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16

Shevchuk, O. M., N. M. Bukartyk, M. R. Chobit, O. P. Pomyluiko, and V. S. Tokarev. "Formation and properties of cross-linked polyacrylamide hydrogels with cds nanoparticles." Chemistry, Technology and Application of Substances 6, no. 1 (2023): 154–60. http://dx.doi.org/10.23939/ctas2023.01.154.

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The new method of obtaining nanocomposite hydrogels with embedded mineral nanoparticles has been proposed. CdS nanoparticles have been synthesized in situ in hydrogel matrix based on the copolymer of acrylamide and acrylic acid under the conditions of diffusion fluxes of Cd2+ та S2- structure-forming ions. The formation of CdS nanoparticles in polymeric matrix has been approved by the methods of XRD, energy- dispersive analysis, UV-spectroscopy. The influence of the content of polymer matrix onto physico- mechanical properties of hydrogel has been studied.

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17

Hajalilou, Abdollah. "Liquid Metal–Polymer Hydrogel Composites for Sustainable Electronics: A Review." Molecules 30, no. 4 (2025): 905. https://doi.org/10.3390/molecules30040905.

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Hydrogels, renowned for their hydrophilic and viscoelastic properties, have emerged as key materials for flexible electronics, including electronic skins, wearable devices, and soft sensors. However, the application of pure double network hydrogel-based composites is limited by their poor chemical stability, low mechanical stretchability, and low sensitivity. Recent research has focused on overcoming these limitations by incorporating conductive fillers, such as liquid metals (LMs), into hydrogel matrices or creating continuous conductive paths through LMs within the polymer matrix. LMs, inclu

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18

Hu, Hai Bo, Qian Wang Chen, Ran Li, Xiang Kai Kong, and Jian Chen. "Exploration of the Structures of the Magnetically Induced Self-Assembly Photonic Crystals in a Solidified Polymer Matrix." Advanced Materials Research 634-638 (January 2013): 2324–31. http://dx.doi.org/10.4028/www.scientific.net/amr.634-638.2324.

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The carbon-encapsulated superparamagnetic colloidal nanoparticles (SCNps) were rigidized into soft solids by embedding the SCNps into polyacrylamide hydrogel matrixes under the induction of an external magnetic field. Stabilized by the balance of attractive (magnetic) and repulsive (electrostatic) forces, the SCNps form one-dimension photonic crystal structures along the direction of the external magnetic field and further the structures are frozen into the solidified polymer matrix. The polymer matrix embedded one-dimension photonic crystal structures can strongly diffract visible light and p

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19

Bibire, Tudor, Alina-Diana Panainte, Catalina Natalia Yilmaz, et al. "Dexketoprofen-Loaded Alginate-Grafted Poly(N-vinylcaprolactam)-Based Hydrogel for Wound Healing." International Journal of Molecular Sciences 26, no. 7 (2025): 3051. https://doi.org/10.3390/ijms26073051.

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All acute and chronic wound management strategies have limitations. Therefore, there is an urgent need to develop new treatment options for wound healing. Hydrogels based on natural polymers offer advantages in wound management because they can reduce patients’ pain, fight infection, and carry targeted drugs to speed up the healing process. In this study, we aimed to develop and investigate an alginate-grafted N-vinylcaprolactam-based matrix for a modified release of dexketoprofen (DEX), which is potentially useful in wound healing. Free radical polymerization and grafted techniques were used

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20

Kowalski, Grzegorz, Mariusz Witczak, and Łukasz Kuterasiński. "Structure Effects on Swelling Properties of Hydrogels Based on Sodium Alginate and Acrylic Polymers." Molecules 29, no. 9 (2024): 1937. http://dx.doi.org/10.3390/molecules29091937.

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Hydrogels based on sodium alginate (SA) and partially neutralised poly(acrylic acid) were obtained by radical polymerisation. The hydrogels were cross-linked with N,N′-methylenebisacrylamide (MBA), simultaneously grafting the resulting polymer onto SA. The findings of the FTIR spectroscopy showed that all of the hydrogels were effectively synthesized and sodium alginate was chemically bonded with the poly(sodium acrylate) matrix. DSC analysis of the melting heat and glass transition parameters indicated that the hydrogel structure had changed as a result of the cross-linking process. Sodium al

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Tarabukin, D. V., E. N. Patova, and I. V. Novakovskaya. "New hydrogel complex with immobilized microalgae cells for removal ammonium and phosphate ions from wastewater." Theoretical and Applied Ecology, no. 4 (December 18, 2023): 61–69. http://dx.doi.org/10.25750/1995-4301-2023-4-061-069.

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The aim of the work was to create a stable hydrogel complex containing microalgae cells to remove ammonium and phosphate ions from an experimental solution simulating domestic wastewater. A new polymer matrix based on sodium alginate and carboxymethyl cellulose, polyacrylic acid, retained the integrity of the structure in a solution with a high content of ammonium and phosphate ions, and also proved to be resistant to alkali metals. To increase the stability of hydrogel complexes, we proposed an increase in the number of chemical bonds in the polymer environment due to the crosslinking of algi

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Lin, Hua, Cuilan Yin, Anchun Mo, and Guang Hong. "Applications of Hydrogel with Special Physical Properties in Bone and Cartilage Regeneration." Materials 14, no. 1 (2021): 235. http://dx.doi.org/10.3390/ma14010235.

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Hydrogel is a polymer matrix containing a large amount of water. It is similar to extracellular matrix components. It comes into contact with blood, body fluids, and human tissues without affecting the metabolism of organisms. It can be applied to bone and cartilage tissues. This article introduces the high-strength polymer hydrogel and its modification methods to adapt to the field of bone and cartilage tissue engineering. From the perspective of the mechanical properties of hydrogels, the mechanical strength of hydrogels has experienced from the weak-strength traditional hydrogels to the hig

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Spasojević, Jelena, Milica Milošević, Sašenka Vidičević-Novaković, et al. "Multifunctional Ag-Poly(N-isopropylacrylamide/itaconic Acid) Hydrogel Nanocomposites Prepared by Gamma Irradiation for Potential Application as Topical Treatment Dressings." Polymers 16, no. 22 (2024): 3211. http://dx.doi.org/10.3390/polym16223211.

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Today, hydrogel dressings that can protect injury sites and effectively promote healing have become highly desirable in wound management. Therefore, multifunctional silver-poli(N-isopropylacrylamide/itaconic acid) (Ag-P(NiPAAm/IA)) hydrogel nanocomposites were developed for potential application as topical treatment dressings. The radiolytic method, used for the crosslinking of the polymer matrix as well as for the in situ incorporation of silver nanoparticles (AgNPs) into the polymer matrix, enables the preparation of hydrogel nanocomposites without introducing harmful and toxic agents. Moreo

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Jiang, Chunyu, and Feng Sun. "3D cell culture of nanofiber hydrogel promotes the growth and osteogenesis of bone marrow mesenchymal stem cells (BMSC)." Materials Express 14, no. 5 (2024): 727–33. http://dx.doi.org/10.1166/mex.2024.2675.

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Hydrogels, as a type of polymer network material with high water content, find wide application in various tissue repair procedures. In addition, a three-dimension (3D) cell culture platform similar to natural extracellular matrix can be constructed in vitro by modifying natural polymer chains. Therefore, this study based on natural polymer hydrogel, the introduction of inorganic nanoparticles POSS to prepare GelMA-POSS nanohydrogel. The physical and chemical properties of the hydrogel were evaluated through SEM, swelling test and degradation analysis. Subsequently, the GelMA-POSS nano-hydroge

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Woerly, S., K. Ulbrich, V. Chytrý, et al. "Synthetic Polymer Matrices for Neural Cell Transplantation." Cell Transplantation 2, no. 3 (1993): 229–39. http://dx.doi.org/10.1177/096368979300200307.

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This study proposes a strategy to promote the integration of a neural graft into the host brain tissue. It involves the attachment of donor cells to a polymeric matrix, and the implantation of this cell-polymer matrix. We have synthesized hydrogels based on N-(2-hydroxypropyl)-methacrylamide (HPMA) to produce highly porous matrices. As preliminary steps, we have examined: 1) The response of the brain tissue to the implantation of PHPMA/collagen hydrogels; 2) adhesion, growth, differentiation, and viability of embryonic neuronal cells, and embryonal carcinoma-derived neurons seeded onto PHPMA s

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Chen, Genxin, Sijie Tang, Honghan Yan, et al. "Binary Double Network-like Structure: An Effective Energy-Dissipation System for Strong Tough Hydrogel Design." Polymers 15, no. 3 (2023): 724. http://dx.doi.org/10.3390/polym15030724.

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Currently, hydrogels simultaneously featuring high strength, high toughness, superior recoverability, and benign anti-fatigue properties have demonstrated great application potential in broad fields; thus, great efforts have been made by researchers to develop satisfactory hydrogels. Inspired by the double network (DN)-like theory, we previously reported a novel high-strength/high-toughness hydrogel which had two consecutive energy-dissipation systems, namely, the unzipping of coordinate bonds and the dissociation of the crystalline network. However, this structural design greatly damaged its

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Kim, Hee-Jin, Sungwoo Cho, Seung Joo Oh, Sung Gyu Shin, Hee Wook Ryu, and Jae Hyun Jeong. "Tuning the Hydrophobicity of a Hydrogel Using Self-Assembled Domains of Polymer Cross-Linkers." Materials 12, no. 10 (2019): 1635. http://dx.doi.org/10.3390/ma12101635.

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Hydrogels incorporated with hydrophobic motifs have received considerable attention to recapitulate the cellular microenvironments, specifically for the bio-mineralization of a 3D matrix. Introduction of hydrophobic molecules into a hydrogel often results in irregular arrangement of the motifs, and further phase separation of hydrophobic domains, but limited efforts have been made to resolve this challenge in developing the hydrophobically-modified hydrogel. Therefore, this study presents an advanced integrative strategy to incorporate hydrophobic domains regularly in a hydrogel using self-ass

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Ortega-Sánchez, Carmina, Yaaziel Melgarejo-Ramírez, Rogelio Rodríguez-Rodríguez, et al. "Hydrogel Based on Chitosan/Gelatin/Poly(Vinyl Alcohol) for In Vitro Human Auricular Chondrocyte Culture." Polymers 16, no. 4 (2024): 479. http://dx.doi.org/10.3390/polym16040479.

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Three-dimensional (3D) hydrogels provide tissue-like complexities and allow for the spatial orientation of cells, leading to more realistic cellular responses in pathophysiological environments. There is a growing interest in developing multifunctional hydrogels using ternary mixtures for biomedical applications. This study examined the biocompatibility and suitability of human auricular chondrocytes from microtia cultured onto steam-sterilized 3D Chitosan/Gelatin/Poly(Vinyl Alcohol) (CS/Gel/PVA) hydrogels as scaffolds for tissue engineering applications. Hydrogels were prepared in a polymer r

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Woerly, S., G. Laroche, R. Marchand, J. Pato, V. Subr, and K. Ulbrich. "Intracerebral Implantation of Hydrogel-Coupled Adhesion Peptides: Tissue Reaction." Journal of Neural Transplantation and Plasticity 5, no. 4 (1995): 245–55. http://dx.doi.org/10.1155/np.1994.245.

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Arg-Gly-Asp peptides (RGD) were synthesized and chemically coupled to the bulk of N-(2-hydroxypropyl) methacrylamide-based polymer hydrogels. Fourier Transform Infrared Spectroscopy (FFIR) and amino acid analysis confirmed the peptide coupling to the polymer. Activated and control (unmodified) polymer matrices were stereotaxically implanted in the striata of rat brains, and two months later the brains were processed for immunohistochemistry using antibodies for glial acidic fibrillary protein (GFAP), laminin and neurofilaments. RGD-containing polymer matrices promoted stronger adhesion to the

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Naddaf, A. A., H. J. Bart, and I. Tsibranska. "Diffusion Kinetics of BSA Protein in Stimuli Responsive Hydrogels." Defect and Diffusion Forum 297-301 (April 2010): 664–69. http://dx.doi.org/10.4028/www.scientific.net/ddf.297-301.664.

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A two-dimensional diffusion mathematical model with moving boundary conditions was developed to evaluate the diffusion kinetics of bovine serum albumin (BSA) through the network of poly(N-isopropylacrylamide) hydrogel (poly(NIPAAm)). These thermosensitive hydrogels were experimentally tested for their response to BSA by exposing the hydrogel disc-shaped geometry to different temperatures and varied protein concentration. The BSA release, which is coupled with hydrogel shrinking when reaching the low critical solution temperature (LCST) of poly(NIPAAm), could be satisfactory described by the mo

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Radojković, Nikolina, Jelena Spasojević, Zorica Kačarević-Popović, et al. "Thermo-Responsive and Electroconductive Nano Au-PNiPAAm Hydrogel Nanocomposites: Influence of Synthesis Method and Nanoparticle Shape on Physicochemical Properties." Polymers 16, no. 23 (2024): 3416. https://doi.org/10.3390/polym16233416.

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Hydrogel nanocomposites that respond to external stimuli and possess switchable electrical properties are considered as emerging materials with potential uses in electrical, electrochemical, and biological devices. This work reports the synthesis and characterization of thermo-responsive and electroconductive hydrogel nanocomposites based on poly(N-isopropylacrylamide) (PNiPAAm) and gold nanoparticles (nanospheres—AuNPs and nanorods—AuNRs) using two different synthetic techniques. Method I involved γ-irradiation-induced crosslinking of a polymer matrix (hydrogel), followed by radiolytic in sit

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Maikovych, O., N. Nosova, Z. Nadashkevych, and S. Varvarenko. "Preparation and research of gelatine hydrogel anti-bedsore materials properties." Chemistry, Technology and Application of Substances 5, no. 1 (2022): 166–72. http://dx.doi.org/10.23939/ctas2022.01.166.

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The formation of the hydrogel polymer matrix duringthe gelatin cross-linking with dioxirane derivatives of polyoxyethylene glycolswere studied.The optimal conditions for their synthesis were determined. The characteristics of the hydrogel (swelling in different media, mechanical properties at different temperatures) were obtained depending on the type of dioxirane derivative and prepolymer ratio. The possibility of introducing several drugs into hydrogels was established and the release of these drugs was found to be prolonged.

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Pazhnaisamy, P., Euis Nurul Hidayah, and Indra Sulania. "Poly (N-tert-amylacrylamide -co- Acrylamide/ Sodium acrylate) Fe3O4 Nanocomposite Hydrogels as polymer catalyst for the reduction of Methylene Blue Dye." International Journal of Eco-Innovation in Science and Engineering 3, no. 02 (2022): 41–44. http://dx.doi.org/10.33005/ijeise.v3i02.75.

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Fe3O4 Nanocomposite Hydrogels were prepared by free radical polymerization using N-tert-amyl acrylamide , Acrylamide and Sodium acrylate monomers at 60OC. Fe3O4 NPs was intercalated via in situ method. The synthesized nanocomposite Hydrogels conformed by FT-IR spectroscopy. Surface morphology of the nanocomposite hydrogels indicated the ferrate nanoparticles are intercalated uniformly throughout the polymer matrix. The XRD pattern of the hydrogel showed the presence of nanoparticles in the matrix with certain crystallinity nature. UV-visible absorption studies reveal the catalytic activity of

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Milojević, Marko, Gregor Harih, Boštjan Vihar, et al. "Hybrid 3D Printing of Advanced Hydrogel-Based Wound Dressings with Tailorable Properties." Pharmaceutics 13, no. 4 (2021): 564. http://dx.doi.org/10.3390/pharmaceutics13040564.

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Despite the extensive utilization of polysaccharide hydrogels in regenerative medicine, current fabrication methods fail to produce mechanically stable scaffolds using only hydrogels. The recently developed hybrid extrusion-based bioprinting process promises to resolve these current issues by facilitating the simultaneous printing of stiff thermoplastic polymers and softer hydrogels at different temperatures. Using layer-by-layer deposition, mechanically advantageous scaffolds can be produced by integrating the softer hydrogel matrix into a stiffer synthetic framework. This work demonstrates t

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Gosecka, Monika, and Mateusz Gosecki. "Antimicrobial Polymer-Based Hydrogels for the Intravaginal Therapies—Engineering Considerations." Pharmaceutics 13, no. 9 (2021): 1393. http://dx.doi.org/10.3390/pharmaceutics13091393.

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The review is focused on the hydrogel systems dedicated to the intravaginal delivery of antibacterial, antifungal and anti-Trichomonas vaginalis activity drugs for the treatment of gynaecological infections. The strategies for the enhancement of the hydrophobic drug solubility in the hydrogel matrix based on the formation of bigel systems and the introduction of nano- and microparticles as a drug reservoir are presented. Hydrogel carriers of natural and synthetic pharmacological substances, drug-free systems displaying antimicrobial activity thanks to the hydrogel building elements and systems

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Sánchez, Jesús, Jose Ulloa, Yessenia Oyarzún, et al. "Enhancing the Mechanical Properties of Injectable Nanocomposite Hydrogels by Adding Boronic Acid/Boronate Ester Dynamic Bonds at the Nanoparticle–Polymer Interface." Gels 10, no. 10 (2024): 638. http://dx.doi.org/10.3390/gels10100638.

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Incorporating nanoparticles into injectable hydrogels is a well-known technique for improving the mechanical properties of these materials. However, significant differences in the mechanical properties of the polymer matrix and the nanoparticles can result in localized stress concentrations at the polymer–nanoparticle interface. This situation can lead to problems such as particle–matrix debonding, void formation, and material failure. This work introduces boronic acid/boronate ester dynamic covalent bonds (DCBs) as energy dissipation sites to mitigate stress concentrations at the polymer–nano

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Quan, Bu, Linjie Du, Zixuan Zhou, Xin Sun, Jadranka Travas-Sejdic, and Bicheng Zhu. "Conductive-Polymer-Based Double-Network Hydrogels for Wearable Supercapacitors." Gels 10, no. 11 (2024): 688. http://dx.doi.org/10.3390/gels10110688.

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In the field of contemporary epidermal bioelectronics, there is a demand for energy supplies that are safe, lightweight, flexible and robust. In this work, double-network polymer hydrogels were synthesized by polymerization of 3,4-ethylenedioxythiophene (EDOT) into a poly(vinyl alcohol)/poly(ethylene glycol diacrylate) (PVA/PEGDA) double-network hydrogel matrix. The PEDOT-PVA/PEGDA double-network hydrogel shows both excellent mechanical and electrochemical performance, having a strain up to 498%, electrical conductivity as high as 5 S m−1 and specific capacitance of 84.1 ± 3.6 mF cm⁻2. After a

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Ohsedo, Yutaka, and Mayumi Sasaki. "Polymeric Hydrogelator-Based Molecular Gels Containing Polyaniline/Phosphoric Acid Systems." Gels 8, no. 8 (2022): 469. http://dx.doi.org/10.3390/gels8080469.

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To expand the range of applications of hydrogels, researchers are interested in developing novel molecular hydrogel materials that have affinities for the living body and the ability to mediate electrical signals. In this study, a simple mixing method for creating a novel composite molecular gel is employed, which combines a hydrophilic conductive polymer, a polyaniline/phosphoric acid complex, and a polymer hydrogelator as a matrix. The composite hydrogel showed an improved gel-forming ability; more effective mechanical properties, with an increased strain value at the sol–gel transition poin

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Chremos, Alexandros, Jack F. Douglas, Peter J. Basser, and Ferenc Horkay. "Prestressed Composite Polymer Gels as a Model of the Extracellular-Matrix of Cartilage." Gels 8, no. 11 (2022): 707. http://dx.doi.org/10.3390/gels8110707.

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Articular cartilage is a composite hydrogel found in animal and human joints, which exhibits unique load-bearing properties that have been challenging to reproduce in synthetic materials and model in molecular dynamics (MD) simulations. We computationally investigate a composite hydrogel that mimics key functional properties of articular cartilage as a potential biomimetic model to investigate its unique load-bearing properties. Specifically, we find that the emergence of prestress in composite gels derives primarily from the stiffness of the polymer matrix and the asymmetry in the enthalpic i

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Li, Maoxue, Jiaxi Lv, Yi Yang, et al. "Advances of Hydrogel Therapy in Periodontal Regeneration—A Materials Perspective Review." Gels 8, no. 10 (2022): 624. http://dx.doi.org/10.3390/gels8100624.

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Hydrogel, a functional polymer material, has emerged as a promising technology for therapies for periodontal diseases. It has the potential to mimic the extracellular matrix and provide suitable attachment sites and growth environments for periodontal cells, with high biocompatibility, water retention, and slow release. In this paper, we have summarized the main components of hydrogel in periodontal tissue regeneration and have discussed the primary construction strategies of hydrogels as a reference for future work. Hydrogels provide an ideal microenvironment for cells and play a significant

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Kudaibergenov, S. E., N. Dolya, G. Tatykhanova, et al. "Semi-interpenetrating Polymer Networks of Polyelectrolytes." Eurasian Chemico-Technological Journal 9, no. 3 (2007): 177–92. https://doi.org/10.18321/ectj290.

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This review is devoted to synthetic pathways, swelling-deswelling behavior, physico-chemical and physico-mechanical properties as well as stimuli-sensitivity of semi-interpenetrating polymer networks (SIPNs) based on crosslinked and linear polymers. The main attention is paid to systems composed of neutral or charged three-dimensional networks with embedded neutral or charged macromolecules. The peculiarities of template (co)polymerization of hydrophilic monomers in the presence of water-soluble polymers as a matrix are emphasized. Nonionic hydrogel matrixes, namely polyacrylamide, poly(acryla

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Ma, Chen, Yu-Kyoung Kim, Min-Ho Lee та Yong-Seok Jang. "Development of Gelatin Methacryloyl/Sodium Alginate Interpenetrating Polymer Network Hydrogels for Bone Regeneration by Activating the Wnt/β-Catenin Signaling Pathway via Lithium Release". International Journal of Molecular Sciences 24, № 17 (2023): 13613. http://dx.doi.org/10.3390/ijms241713613.

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Hydrogels have gained significant attention as biomaterials due to their remarkable properties resembling those of the extracellular matrix (ECM). In the present investigation, we successfully synthesized interpenetrating polymer network (IPN) hydrogels using gelatin methacryloyl (GelMA) and sodium alginate (SA), incorporating various concentrations of lithium chloride (LiCl; 0, 5, and 10 mM), aiming to develop a hydrogel scaffold for bone regeneration. Notably, the compressive modulus of the IPN hydrogels remained largely unaffected upon the inclusion of LiCl. However, the hydrogel with the h

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Wang, Shunfeng, Xiaohong Wang, Meik Neufurth, et al. "Biomimetic Alginate/Gelatin Cross-Linked Hydrogels Supplemented with Polyphosphate for Wound Healing Applications." Molecules 25, no. 21 (2020): 5210. http://dx.doi.org/10.3390/molecules25215210.

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In the present study, the fabrication of a biomimetic wound dressing that mimics the extracellular matrix, consisting of a hydrogel matrix composed of non-oxidized and periodate-oxidized marine alginate, was prepared to which gelatin was bound via Schiff base formation. Into this alginate/oxidized-alginate-gelatin hydrogel, polyP was stably but reversibly integrated by ionic cross-linking with Zn2+ ions. Thereby, a soft hybrid material is obtained, consisting of a more rigid alginate scaffold and porous structures formed by the oxidized-alginate-gelatin hydrogel with ionically cross-linked pol

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Simeonov, Marin, Anton Atanasov Apostolov, Milena Georgieva, Dimitar Tzankov, and Elena Vassileva. "Poly(acrylic acid-co-acrylamide)/Polyacrylamide pIPNs/Magnetite Composite Hydrogels: Synthesis and Characterization." Gels 9, no. 5 (2023): 365. http://dx.doi.org/10.3390/gels9050365.

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Novel composite hydrogels based on poly(acrylic acid-co-acrylamide)/polyacrylamide pseudo-interpenetrating polymer networks (pIPNs) and magnetite were prepared via in situ precipitation of Fe3+/Fe2+ ions within the hydrogel structure. The magnetite formation was confirmed by X-ray diffraction, and the size of the magnetite crystallites was shown to depend on the hydrogel composition: the crystallinity of the magnetite particles increased in line with PAAM content within the composition of the pIPNs. The Fourier transform infrared spectroscopy revealed an interaction between the hydrogel matrix

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Аlekseeva, Т. Т., and N. V. Iarova. "Temperature- and pH-sensitive hydrogels of sequential Ti-containing interpenetrating polymer networks." Voprosy Khimii i Khimicheskoi Tekhnologii, no. 3 (May 2021): 42–49. http://dx.doi.org/10.32434/0321-4095-2021-136-3-42-49.

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Hydrogels of sequential Ti-containing interpenetrating polymer networks based on hydrophilic cross-linked polyurethanes with different molecular weight of polyethylene glycols and Ti-containing copolymer were synthesized based on 2-hydroxyethyl methacrylate and titanium isopropoxide. The composition of sequential interpenetrating polymer networks was determined by the degree of equilibrium swelling of the polyurethane networks in 2-hydroxyethyl methacrylate and Ti-containing comonomer. It was established that the content of the second component of the interpenetrating polymer networks increase

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Zein, Naimah, Ezeddine Harmouch, Jean-Christophe Lutz, et al. "Polymer-Based Instructive Scaffolds for Endodontic Regeneration." Materials 12, no. 15 (2019): 2347. http://dx.doi.org/10.3390/ma12152347.

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The challenge of endodontic regeneration is modulated by clinical conditions which determine five kinds of tissue requirements: pulp connective-tissue formation, dentin formation, revascularization, reinnervation and radicular edification. Polymer scaffolds constitute keystone of the different endodontic regenerative strategies. Indeed, scaffolds are crucial for carrying active molecules and competent cells which optimize the regeneration. Hydrogels are very beneficial for controlling viscosity and porosity of endodontic scaffolds. The nanofibrous and microporous scaffolds mimicking extracellu

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Tozar, Tatiana, Simona Nistorescu, Gratiela Gradisteanu Pircalabioru, Mihai Boni, and Angela Staicu. "Photopolymerization of Chlorpromazine-Loaded Gelatin Methacryloyl Hydrogels: Characterization and Antimicrobial Applications." Gels 10, no. 10 (2024): 632. http://dx.doi.org/10.3390/gels10100632.

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This study investigates the synthesis, characterization, and antimicrobial properties of hydrogels synthesized through the UV-pulsed laser photopolymerization of a polymer–photoinitiator–chlorpromazine mixture. Chlorpromazine was used for its known enhanced antimicrobial properties when exposed to UV laser radiation. The hydrogel was formed from a mixture containing 0.05% Irgacure 2959, 10% gelatin methacryloyl, and various concentrations of chlorpromazine (1, 2, and 4 mg/mL). Laser-induced fluorescence spectroscopy was employed to monitor the photoinduced changes of chlorpromazine and Irgacur

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Xu, Bo, Yuwei Liu, Lanlan Wang, et al. "High-Strength Nanocomposite Hydrogels with Swelling-Resistant and Anti-Dehydration Properties." Polymers 10, no. 9 (2018): 1025. http://dx.doi.org/10.3390/polym10091025.

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Hydrogels with excellent mechanical properties have potential for use in various fields. However, the swelling of hydrogels under water and the dehydration of hydrogels in air severely limits the practical applications of high-strength hydrogels due to the influence of air and water on the mechanical performance of hydrogels. In this study, we report on a kind of tough and strong nanocomposite hydrogels (NC-G gels) with both swelling-resistant and anti-dehydration properties via in situ free radical copolymerization of acrylic acid (AA) and N-vinyl-2-pyrrolidone (VP) in the water-glycerol bi-s

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Maeyama, Takuya, Yasuhiro Ishida, Yoshihiro Kudo, Kazuaki Fukasaku, Kenichi L. Ishikawa, and Nobuhisa Fukunishi. "Polymer gel dosimeter with AQUAJOINT ® as hydrogel matrix." Radiation Physics and Chemistry 146 (May 2018): 121–25. http://dx.doi.org/10.1016/j.radphyschem.2018.01.014.

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Azkune, Mikel, Igor Ayesta, Leire Ruiz-Rubio, Eneko Arrospide, Jose Luis Vilas-Vilela, and Joseba Zubia. "Hydrogel-Core Microstructured Polymer Optical Fibers for Selective Fiber Enhanced Raman Spectroscopy." Sensors 21, no. 5 (2021): 1845. http://dx.doi.org/10.3390/s21051845.

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A new approach of Fiber Enhanced Raman Spectroscopy (FERS) is described within this article based on the use of Hydrogel-Core microstructured Polymer Optical Fibers (HyC-mPOF). The incorporation of the hydrogel only on the core of the Hollow-Core microstructured Polymer Optical Fiber (HC-mPOF) enables to perform FERS measurements in a functionalized matrix, enabling high selectivity Raman measurements. The hydrogel formation was continuously monitored and quantified using a Principal Component Analysis verifying the coherence between the components and the Raman spectrum of the hydrogel. The p

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