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Journal articles on the topic 'Clay composite hydrogels'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

K., N. Sukanya* and Dr. M. Sunitha Reddy. "CLAY COMPOSITE HYDROGEL FOR MODIFIED DRUG DELIVERY: A REVIEW." Indo American Journal of Pharmaceutical Sciences 04, no. 12 (2017): 4524–31. https://doi.org/10.5281/zenodo.1118954.

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<em>Clay minerals are used in many pharmaceutical formulations (US-FDA declared as excipients). The necessity for safe, inexpensive and compatible drug delivery system led to the synthesis new material known as clay composite hydrogels. The clay minerals had a considerable effect in the properties of the hydrogels. Many clay mineral forms like montmorillonite, attapulgite, layered double hydroxide, saponite etc., are used in composite hydrogels. In recent years, the research on the clay composite has been increased due to improvement in mechanical properties, swelling kinetics, biocompatibilit

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2

Takeno, Hiroyuki, Rina Shikano, and Rin Kikuchi. "Mechanical Performance of Corn Starch/Poly(Vinyl Alcohol) Composite Hydrogels Reinforced by Inorganic Nanoparticles and Cellulose Nanofibers." Gels 8, no. 8 (2022): 514. http://dx.doi.org/10.3390/gels8080514.

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We investigated the mechanical properties of corn starch (CS)/poly(vinyl alcohol) (PVA)/borax hydrogels reinforced by clay platelets, silica (SiO2) nanospheres, or cellulose nanofibers (CNFs). The effects of these reinforcing agents on the tensile properties of the hydrogels were quite different; the fracture stress of SiO2/CS/PVA/borax composite hydrogels increased with SiO2 concentration, whereas that of clay/CS/PVA/borax composite hydrogels was high at a low clay concentration but low at high clay concentrations; for CNF/CS/PVA/borax composite hydrogels, although the elastic modulus was hig

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3

Zhumagaliyeva, Sh, R. Iminovа, G. Kairalapova, М. M. Beysebekov, M. K. Beysebekov, and Zh Abilov. "Composite Polymer-Clay Hydrogels Based on Bentonite Clay and Acrylates: Synthesis, Characterization and Swelling Capacity." Eurasian Chemico-Technological Journal 19, no. 3 (2017): 279. http://dx.doi.org/10.18321/ectj672.

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Clay minerals, especially montmorillonite, as well as bentonite minerals with a high content of montmorillonite, have the highest ability to adsorb various organic compounds. In the East Kazakhstan region, the Manyrak deposit has huge deposits of “pink” bentonite clay (BC) with 70% of montmorillonite, extensively studied back in the 70-80-s. Now it is successfully useful in the organo-polymer composition as a mineral filler of polymer composite materials (PCM) and finds the application as domestic sorbents for the group extraction of non-ferrous ions in the purification of industrial sewage an

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4

Li, Peng, Siddaramaiah, Ok Kyung Park, Nam Hoon Kim, Seok Bong Heo, and Joong Hee Lee. "Swelling Behavior of Poly(Acrylamide) Nanoclay Composite Hydrogels." Advanced Materials Research 47-50 (June 2008): 230–33. http://dx.doi.org/10.4028/www.scientific.net/amr.47-50.230.

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A series of nanocomposite (NC) hydrogels were synthesized by in-situ polymerization of acrylamide (AAm) monomer using laponite XLS clay as a crosslinker. This paper focused on water absorbency of the NC hydrogels with various clay contents, at various pH values and ionic strengths. The influence of pH value on swelling behaviors showed that a maximum swelling ratio was observed at pH 11. The swelling abilities of the NC composites decreased in saline solution strength. Heat treatment of NC hydrogels improved the swelling capacity of the hydrogels.

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Plugariu, Ioana-Alexandra, Maria Bercea, Luiza Madalina Gradinaru, Daniela Rusu, and Alexandra Lupu. "Poly(vinyl alcohol)/Pullulan Composite Hydrogels as a Potential Platform for Wound Dressing Applications." Gels 9, no. 7 (2023): 580. http://dx.doi.org/10.3390/gels9070580.

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Hydrogels are 3D networks with an excellent ability to retain a high amount of water or biological fluids, representing suitable candidates for wound dressing applications. They can provide a protective barrier and a moist environment, facilitating wound treatment. The present paper focuses on physical hydrogels obtained from poly(vinyl alcohol) (PVA) and pullulan (PULL) mixtures in different weight ratios by using the freezing/thawing method. Hybrid hydrogels of similar polymer compositions were prepared in the presence of 0.5% Laponite® RD. The influence of polysaccharide and clay addition o

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NGUYEN, KHOA DANG. ""PREPARATION AND CHARACTERIZATION OF CHITIN HYDROGEL COMPOSITED WITH HALLOYSITE CLAY SOLUTION VIA PHASE INVERSION "." Cellulose Chemistry and Technology 56, no. 9-10 (2022): 1071–80. http://dx.doi.org/10.35812/cellulosechemtechnol.2022.56.95.

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In this study, halloysite clay (HC), a reinforcing nanofiller, was mixed with 1 and 1.5% chitin solutions to prepare chitin–halloysite clay composite hydrogel by phase inversion under water vapor atmosphere at 25 °C. Chitin, extracted chemically from crab shell, was dissolved in N,N-dimethyl acetamide in the presence of 5% lithium chloride (DMAc/5% LiCl), and then different amounts of HC solution (0, 3, 5 and 7%) were added to evaluate the effect of HC on the fundamental properties of the obtained composite hydrogels. After the green route of preparation, the diameter and thickness of the hydr

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7

Huang, Biao, Mingxian Liu, and Changren Zhou. "Chitosan composite hydrogels reinforced with natural clay nanotubes." Carbohydrate Polymers 175 (November 2017): 689–98. http://dx.doi.org/10.1016/j.carbpol.2017.08.039.

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8

Cheng, Wei-Min, Xiang-Ming Hu, Yan-Yun Zhao, Ming-Yue Wu, Zun-Xiang Hu, and Xing-Teng Yu. "Preparation and swelling properties of poly(acrylic acid-co-acrylamide) composite hydrogels." e-Polymers 17, no. 1 (2017): 95–106. http://dx.doi.org/10.1515/epoly-2016-0250.

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AbstractIn order to study the effect of composite clays on the mechanical properties, water absorption and salt tolerance of a hydrogel, a poly(acrylic acid-co-acrylamide)/bentonite/kaolin composite hydrogel was prepared. Acrylic acid and acrylamide have been used as water absorbent monomers. N,N′-methylene bisacrylamide was used as a crosslinking agent while potassium persulfate was used as an initiator. The water preserving capability, repeated water absorption, salt resistance and the mechanical properties of the composite hydrogel are analyzed and discussed. The results show that a small q

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9

Ata, Sadia, Sadaf Amin, Ismat Bibi, et al. "Kinetics of methylene blue dye adsorptive removal using halloysite nanocomposite hydrogels." Zeitschrift für Physikalische Chemie 236, no. 3 (2021): 373–85. http://dx.doi.org/10.1515/zpch-2021-3075.

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Abstract In the present work, halloysite nano-clay (HNTs) based hydrogel was fabricated and their efficiency for the removal of methylene blue dye was studied. The hydrogel films were prepared with varying amount of halloysite nano-clay via facile solution casting method. Effect of halloysite clay on adsorption performance of composite was investigated. The hydrophobic thermoplastic synthetic polymer, polylactic acid (PLA) was blended with hydrophilic polymer polyvinyl alcohol (PVA) and HNTs to synthesize hydrogels. Swelling behavior and antimicrobial efficiency was also evaluated. The halloys

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10

Sheikhi, Amir, Samson Afewerki, Rahmi Oklu, Akhilesh K. Gaharwar, and Ali Khademhosseini. "Effect of ionic strength on shear-thinning nanoclay–polymer composite hydrogels." Biomaterials Science 6, no. 8 (2018): 2073–83. http://dx.doi.org/10.1039/c8bm00469b.

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The effect of ionic strength on the structure and rheological properties of nanoclay–gelatin shear-thinning biomaterials (STBs) is investigated. A fundamental insight into nanoclay–polymer interactions in physiological environments is provided to design clay-based biomaterials for biomedical applications.

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11

Lv, Shanshan, Tianyu Duan, and Hongbin Li. "Engineering Protein-Clay Nanosheets Composite Hydrogels with Designed Arginine-Rich Proteins." Langmuir 35, no. 22 (2019): 7255–60. http://dx.doi.org/10.1021/acs.langmuir.9b00701.

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12

Leu Alexa, Rebeca, Raluca Ianchis, Diana Savu, et al. "3D Printing of Alginate-Natural Clay Hydrogel-Based Nanocomposites." Gels 7, no. 4 (2021): 211. http://dx.doi.org/10.3390/gels7040211.

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Biocompatibility, biodegradability, shear tinning behavior, quick gelation and an easy crosslinking process makes alginate one of the most studied polysaccharides in the field of regenerative medicine. The main purpose of this study was to obtain tissue-like materials suitable for use in bone regeneration. In this respect, alginate and several types of clay were investigated as components of 3D-printing, nanocomposite inks. Using the extrusion-based nozzle, the nanocomposites inks were printed to obtain 3D multilayered scaffolds. To observe the behavior induced by each type of clay on alginate

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13

Li, Shouchuan, Chunyu Chen, Zhengdong Zhang, Dong Wang, and Shanshan Lv. "Illustration and application of enhancing effect of arginine on interactions between nano-clays: self-healing hydrogels." Soft Matter 15, no. 2 (2019): 303–11. http://dx.doi.org/10.1039/c8sm02188k.

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14

Gomes, Valéria, Sérgio R. S. Veloso, Miguel A. Correa-Duarte, Paula M. T. Ferreira, and Elisabete M. S. Castanheira. "Tuning Peptide-Based Hydrogels: Co-Assembly with Composites Driving the Highway to Technological Applications." International Journal of Molecular Sciences 24, no. 1 (2022): 186. http://dx.doi.org/10.3390/ijms24010186.

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Self-assembled peptide-based gels provide several advantages for technological applications. Recently, the co-assembly of gelators has been a strategy to modulate and tune gel properties and even implement stimuli-responsiveness. However, it still comprises limitations regarding the required library of compounds and outcoming properties. Hence, efforts have been made to combine peptide-based gels and (in)organic composites (e.g., magnetic nanoparticles, metal nanoparticles, liposomes, graphene, silica, clay, titanium dioxide, cadmium sulfide) to endow stimuli-responsive materials and achieve s

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15

Zhang, Huagui, Chris S. Hodges, Prashant Kumar Mishra, et al. "Bio-Inspired Preparation of Clay–Hexacyanoferrate Composite Hydrogels as Super Adsorbents for Cs+." ACS Applied Materials & Interfaces 12, no. 29 (2020): 33173–85. http://dx.doi.org/10.1021/acsami.0c06598.

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16

Zhang, Liying, Gao He, Yang Yu, Yu Zhang, Xiang Li, and Shige Wang. "Design of Biocompatible Chitosan/Polyaniline/Laponite Hydrogel with Photothermal Conversion Capability." Biomolecules 12, no. 8 (2022): 1089. http://dx.doi.org/10.3390/biom12081089.

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In recent years, multifunctional hydrogels have received a great deal of attention because they are biocompatible and can mimic the extracellular matrix. Herein, we prepared hydrogels of biocompatible cross-linked networks with photothermal properties. In this study, a chitosan/polyaniline/laponite (COL) hydrogel with photothermal conversion capability was designed. Polyaniline was firstly grafted onto chitosan and its solution was mixed with oxidized dextran, which was then cross-linked into a hydrogel via a Schiff base reaction. Furthermore, an aluminosilicate clay material, laponite (LAP),

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17

Samchenko, Yurii, Konrad Terpilowski, Kateryna Samchenko, Lyudmila Golovkova, Olena Oranska, and Olena Goncharuk. "Calcium Alginate/Laponite Nanocomposite Hydrogels: Synthesis, Swelling, and Sorption Properties." Coatings 14, no. 12 (2024): 1519. https://doi.org/10.3390/coatings14121519.

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This study presents the synthesis, characterization, and evaluation of hybrid hydrogels based on calcium alginate (Ca-Alg) and synthetic nanoclay LaponiteRD (Lap), with an emphasis on their swelling and sorption properties. The motivation behind the development of these hybrid hydrogels stems from the need for sustainable materials with enhanced mechanical strength, swelling properties, and sorption capacity for environmental remediation and controlled-release applications. Synthesis methods for the ionotropically cross-linked Ca-Alg hydrogel and Alg–Lap composite hydrogels, based on Alg and L

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18

Stempfle, Beate, Anna Große, Bernhard Ferse, Karl-Friedrich Arndt, and Dominik Wöll. "Anomalous Diffusion in Thermoresponsive Polymer–Clay Composite Hydrogels Probed by Wide-Field Fluorescence Microscopy." Langmuir 30, no. 46 (2014): 14056–61. http://dx.doi.org/10.1021/la503571j.

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19

Tipa, Cezar, Maria T. Cidade, Tânia Vieira, Jorge Carvalho Silva, Paula I. P. Soares, and João Paulo Borges. "A New Long-Term Composite Drug Delivery System Based on Thermo-Responsive Hydrogel and Nanoclay." Nanomaterials 11, no. 1 (2020): 25. http://dx.doi.org/10.3390/nano11010025.

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Several problems and limitations faced in the treatment of many diseases can be overcome by using controlled drug delivery systems (DDS), where the active compound is transported to the target site, minimizing undesirable side effects. In situ-forming hydrogels that can be injected as viscous liquids and jellify under physiological conditions and biocompatible clay nanoparticles have been used in DDS development. In this work, polymer–clay composites based on Pluronics (F127 and F68) and nanoclays were developed, aiming at a biocompatible and injectable system for long-term controlled delivery

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20

Alexa, Rebeca Leu, Horia Iovu, Bogdan Trica, et al. "Assessment of Naturally Sourced Mineral Clays for the 3D Printing of Biopolymer-Based Nanocomposite Inks." Nanomaterials 11, no. 3 (2021): 703. http://dx.doi.org/10.3390/nano11030703.

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The present study investigated the possibility of obtaining 3D printed composite constructs using biomaterial-based nanocomposite inks. The biopolymeric matrix consisted of methacrylated gelatin (GelMA). Several types of nanoclay were added as the inorganic component. Our aim was to investigate the influence of clay type on the rheological behavior of ink formulations and to determine the morphological and structural properties of the resulting crosslinked hydrogel-based nanomaterials. Moreover, through the inclusion of nanoclays, our goal was to improve the printability and shape fidelity of

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21

Bhatnagar, Divya, Di Xu, Dilip Gersappe, and Miriam H. Rafailovich. "Hyaluronic Acid and Gelatin Clay Composite Hydrogels: Substrates for Cell Adhesion and Controlled Drug Delivery." Journal of Chemical and Biological Interfaces 2, no. 1 (2014): 34–44. http://dx.doi.org/10.1166/jcbi.2014.1022.

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22

Takeno, Hiroyuki, and Wataru Nakamura. "Structural and mechanical properties of composite hydrogels composed of clay and a polyelectrolyte prepared by mixing." Colloid and Polymer Science 291, no. 6 (2012): 1393–99. http://dx.doi.org/10.1007/s00396-012-2871-z.

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23

Ibraeva, Zhanar E., Assiya A. Zhumaly, Evgeniy Blagih, and Sarkyt E. Kudaibergenov. "Preparation and Characterization of Organic-Inorganic Composite Materials Based on Poly(acrylamide) Hydrogels and Clay Minerals." Macromolecular Symposia 351, no. 1 (2015): 97–111. http://dx.doi.org/10.1002/masy.201300131.

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24

Stefan, Daniela Simina, Ana-Maria Manea-Saghin, Irene-Eva Triantaphyllidou, Ioanna Tzoumani, and Irina Meghea. "Advanced Collagen-Based Composites as Fertilizers Obtained by Recycling Lime Pelts Waste Resulted during Leather Manufacture." Polymers 14, no. 15 (2022): 3169. http://dx.doi.org/10.3390/polym14153169.

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Recent trends in ecological agriculture practices are focused on finding optimal solutions for reuse and recycling of pelt waste from tannery industry. In this context, new collagen-based hydrogels with NPK nutrients encapsulated have been functionalized with synthetic and natural additives, including starch and dolomite, to be used as composite fertilizers. Possible interaction mechanisms are presented in case of each synthetic or natural additive, ranging from strong linkages as a result of esterification reactions until hydrogen bonds and ionic valences. Such interactions are responsible fo

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25

Abrougui, Mariem M., Modesto T. Lopez-Lopez, and Juan D. G. Duran. "Mechanical properties of magnetic gels containing rod-like composite particles." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 377, no. 2143 (2019): 20180218. http://dx.doi.org/10.1098/rsta.2018.0218.

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Magnetic gels (ferrogels) are heterogeneous systems structured at the nanoscale that contains magnetic particles dispersed in three-dimensional networks of polymer chains. In the present work, the magnetic particles were synthesized with a core–shell structure, consisting of sepiolite particles covered by magnetite nanoparticles. These composite particles had a rod-like shape with a high aspect ratio. The obtained sepiolite–magnetite particles showed a high enough susceptibility and saturation magnetization. The magneto-rheological (MR) properties, and the intensity of the MR effect, of aqueou

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26

Rahmouni, Abdelkader, Mohammed Belbachir, and Molkheir Ayat. "Structural Investigation: Anionic Polymerization of Acrylamide under Microwave Irradiation using Maghnite-Na+ Clay (Algerien MMT) as Initiator." Bulletin of Chemical Reaction Engineering & Catalysis 13, no. 2 (2018): 262. http://dx.doi.org/10.9767/bcrec.13.2.1308.262-274.

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Intercalation of acrylamide into interlayer spaces of natural montmorillonite called maghnite (Algerian MMT) by the free solvent polymerization technique under micowave irradiation was studied. The transformation was carried out with using both the raw (Maghnite-Na fin) and treated clay (Maghnite-Na+ fin) in aqueous sodium hydroxide NaOH solution (1 M). It was shown that no initial modification of the layered mineral (by ion-exchange with Na+ cations or organophilization) is needed for the successful introduction of anionic hydrogels into the interlayer gallery. The goal of the present study w

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Tessarolli, Fernanda, Sara Souza, Ailton Gomes, and Claudia Mansur. "Gelation Kinetics of Hydrogels Based on Acrylamide–AMPS–NVP Terpolymer, Bentonite, and Polyethylenimine for Conformance Control of Oil Reservoirs." Gels 5, no. 1 (2019): 7. http://dx.doi.org/10.3390/gels5010007.

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Relatively smaller volumes of gelling systems had been used to address conformance problems located near the wellbore in oil reservoirs with harsh temperature and salinity conditions. These gelling systems were formulated with high concentrations of low-molecular-weight acrylamide-based polymers crosslinked with polyethylenimine (PEI). However, for in-depth conformance control, in which large gelant volumes and long gelation times were required, lower-base polymer loadings were necessary to ensure the economic feasibility of the treatment. In this study, a gelling system with high-molecular we

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Bhattacharyya, Ruma, and Samit Kumar Ray. "Removal of congo red and methyl violet from water using nano clay filled composite hydrogels of poly acrylic acid and polyethylene glycol." Chemical Engineering Journal 260 (January 2015): 269–83. http://dx.doi.org/10.1016/j.cej.2014.08.030.

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Karadağ, Erdener, Aylin Nalbantoğlu, Semiha Kundakcı, and Ömer Barış Üzüm. "Highly Swollen Polymer/Clay Composite Sorbent-Based AAm/AMPS Hydrogels and Semi-IPNs Composed of Carboxymethyl Cellulose and Montmorillonite and Cross-Linked by PEGDA." Polymer-Plastics Technology and Engineering 53, no. 1 (2014): 54–64. http://dx.doi.org/10.1080/03602559.2013.843689.

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30

Bhagyaraj, Sneha, and Igor Krupa. "Alginate–Halloysite Nanocomposite Aerogel: Preparation, Structure, and Oil/Water Separation Applications." Biomolecules 10, no. 12 (2020): 1632. http://dx.doi.org/10.3390/biom10121632.

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Environmental remediation using green approaches for addressing various pollution-related issues, especially water pollution, is in high demand. Here, we designed an environmentally friendly, low-cost, and stable sodium alginate–halloysite clay composite aerogel (SAHA) for oil/water separation via a two-step synthesis procedure, including ionic crosslinking and freeze-drying. The as-prepared SAHA aerogels were characterized in detail by scanning electron microscopy (SEM), atomic force microscopy (AFM), X-ray diffraction (XRD), and Fourier transformation infrared (FT-IR) spectroscopy. Character

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Karadağ, Erdener, Banu Hasgül, Semİha Kundakci та Ömer Bariş Üzüm. "A Study of Polymer/Clay Hybrid Composite Sorbent-Based AAm/SMA Hydrogels and Semi-IPNs Composed ofɩ-Carrageenan and Montmorillonite for Water and Dye Sorption". Advances in Polymer Technology 33, № 4 (2014): n/a. http://dx.doi.org/10.1002/adv.21432.

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Kundakci, Semiha, Ömer Barış Üzüm, and Erdener Karadağ. "A new composite sorbent for water and dye uptake: Highly swollen acrylamide/2-acrylamido-2-methyl-1-propanesulfonic acid/clay hydrogels crosslinked by 1,4-butanediol dimethacrylate." Polymer Composites 30, no. 1 (2009): 29–37. http://dx.doi.org/10.1002/pc.20524.

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33

Trambitski, Yahor, Olga Kizinievič, and Viktor Kizinievič. "Effect of Retrograded Starch Hydrogel on the Hygroscopic and Durability Properties of Clay Composites." Materials 15, no. 24 (2022): 8815. http://dx.doi.org/10.3390/ma15248815.

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This study is devoted to assessing the hygroscopic and durability properties of a clay composite with the addition of a natural polymer. Modified polymer-retrograded starch hydrogel (RSH) of various concentrations (2.5, 5.0, 7.5, and 10.0%) and heating times (3 and 5 h) were used as clay stabilizers. The introduction of retrograded starch tends to increase the drying rate of clay composites at the early period of 0–4 days without the formation of shrinkage defects. Moisture uptake increased by 29% (from 140 to 180 g/m2) over the control clay composite without RSH. The hysteresis rate of the cl

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Mokhtar, Adel, Boubekeur Asli, Soumia Abdelkrim, et al. "Polymer/Clay Nanocomposites as Advanced Adsorbents for Textile Wastewater Treatment." Minerals 14, no. 12 (2024): 1216. http://dx.doi.org/10.3390/min14121216.

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This review explores the removal of textile dyes from wastewater using advanced polymer/clay composites. It provides an in-depth analysis of the chemical and physical properties of these composites, emphasizing how the combination of polymers and clays creates a synergistic effect that significantly improves the efficiency of dye removal. The structural versatility of the composites, derived from the interaction between the layered clay sheets and the flexible polymer matrices, is detailed, showcasing their enhanced adsorption capacity and catalytic properties for wastewater treatment. The rev

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Fatimah, Is, Dwiarso Rubiyanto, Septian Perwira Yudha, Gunarti Pratiwi, and Ayu Puspita. "Chitosan-smectite composite on the urea adsorption–desorption study for slow-release fertilizer application." World Journal of Engineering 15, no. 2 (2018): 292–97. http://dx.doi.org/10.1108/wje-08-2017-0229.

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Purpose The purpose of this study is to prepare composite of chitosan-modified smectite clays consisting of montmorillonite and saponite clay minerals and their urea adsorption–desorption study. Prepared materials were designed for slow-release fertilizer application. Design/methodology/approach Preparation of the composites was conducted by a simple intercalation of chitosan solution and clay suspension followed by hydrogel beads formation. Physicochemical characterization of materials was performed by X-ray diffraction, gas sorption analysis by using Brunauer–Emmett–Teller surface areas and

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Deraman, Nurul Fasiha, Nur Raihan Mohamed, and Ahmad Zafir Romli. "Effect of Hectorite Clay Loading on Thermal Properties of Superabsorbent Polymer Composite Based on Polystyrene-Graft-Polycrylic Acid/Hectorite Clay and Mung Bean Starch." Key Engineering Materials 801 (May 2019): 109–14. http://dx.doi.org/10.4028/www.scientific.net/kem.801.109.

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A series of superabsorbent polymer composites (SAPCs) were synthesized via emulsion polymerization of partially neutralized acrylic acid onto polystyrene in the presence of Hectorite (HT) clay powder and mung bean starch (MBSt) using Ammonium Persulphate and N’N,-Methylenebisacrylamide as initiator and crosslinker, respectively. The aim of this study is to prepare a hydrogel composite using Hectorite clay as the reinforcement and to study the effect of Hectorite clay on the thermal properties of the composite. FTIR analysis confirmed that the grafting polymerization took place among acrylic ac

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Cheng, Qiuhong, Zhuoer Wang, Aiyou Hao, Pengyao Xing, and Yanli Zhao. "Aromatic vapor responsive molecular packing rearrangement in supramolecular gels." Materials Chemistry Frontiers 4, no. 8 (2020): 2452–61. http://dx.doi.org/10.1039/d0qm00348d.

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Aromatic vapor responsive hydrogels are prepared by crystal transformation of commercially available β-cyclodextrin (β-CD). Hydrogel composites coassembled by clay with β-CD show haze evolution toward aromatic vapor under heating–cooling treatment.

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Li, Yu Feng, Xiao Hui Gao, Hong Lei Zhu, and Liu Yang. "Water-Based Polyaniline/Montmorillonite/Epoxy Composite Coatings for the Corrosion Protection of Mild Steel." Advanced Materials Research 79-82 (August 2009): 1067–70. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.1067.

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Polystyrene sulfonic acid (PSSA) doped water-dispersible polyaniline (PANI) /montmorillonite (MMT) clay composites were firstly synthesized by intercalation polymerisation in aqueous medium and characterized by XRD and FT-IR. The results showed exfoliated silicate nanolayers of MMT clay dispersed in the PANI matrix and has interaction involving hydrogen bonding between the PSSA-PANI chain and the surface of the MMT clay layer. This composites is more thermal stable than that of without clay samples and results in good stable temperature-dependent dc conductivity [σdc(T)] as temperature changed

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Ollier, Romina P., Laura M. Sanchez, Jimena S. Gonzalez, and Vera A. Alvarez. "Thermal properties of hydrogel-clay nano-composites." Advanced Materials Letters 9, no. 7 (2018): 505–9. http://dx.doi.org/10.5185/amlett.2018.2047.

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Çankaya, Nevin. "Remediation of Toxic Cu (II) with Acrylamide-Based Hydrogels." Advances in Clinical Toxicology 8, no. 3 (2023): 1–12. http://dx.doi.org/10.23880/act-16000278.

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Industrial developments and increasing urbanization increase the concentration of heavy metals in wastewater. Hydrogel composites are used as adsorbents for the removal of heavy metals from wastewater. In this study, superabsorbent hydrogels were synthesized and characterized using carboxymethyl cellulose (CMC) as biopolymers, halloysite (HNT) and montmorillonite (MMT) as clays, acrylamide (AM) and 2-acrylamido-2-methyl-1-propane sulfonic acid (AMPS) as monomers. Poly(ethylene glycol) diacrylate (PEGDA) was used as cross linker, tetramethylenediamine (TEMED) as accelerator, and ammonium persul

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B H, Nanjunda Reddy, Prdadipta Ranjan Rauta, Venkatalakshimi V, and Swamy Sreenivasa. "SYNTHESIS AND CHARACTERIZATION OF NOVEL SA-PA-LSA/C-30B/AG NANOCOMPOSITES FOR SWELLING, ANTIBACTERIAL, DRUG DELIVERY, AND ANTICANCER APPLICATIONS." Asian Journal of Pharmaceutical and Clinical Research 11, no. 3 (2018): 229. http://dx.doi.org/10.22159/ajpcr.2018.v11i3.22939.

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Objective: The main objective of this work was to formulate and evaluate Closite-30B/nanoAg filled hydrogel composites which are further intentended to be used for the study of drug delivery,antibacterial, and anticancer activityMethods: In this study, Cloisite-30B (C-30B) clay dispersed biopolymer sodium alginate (SA)-grafted-poly (acrylamide [AAm]-co-lignosulfonic acid) hydrogel composites were synthesized by free radical in situ polymerization reaction technique using SA, AAm, and lignosulfonic acid biopolymers in different proportions in combination. which are subjected to invitro drug del

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Wu, Te Hsing, Hong Ru Lin, and Lie Han Shen. "Preparation and Properties of Nanocomposites Containing FGF-2, other Related Dressings and the Primary Animal Tests." Advanced Materials Research 535-537 (June 2012): 406–10. http://dx.doi.org/10.4028/www.scientific.net/amr.535-537.406.

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PU/ hydrogel composites or it containing fibroblast growth factor-2 (FGF-2) composites had been prepared by γ-ray radiation or room temperature(T) method in this paper. We utilized nanosized clay solution, thermosensitive N-isopropyl acrylamide (NIPAAm), Polyurethane (PU), and acrylic acid (AAc) as the starting materials to synthesize PU/hydrogel nanocomposite products. The dipping and weighing tests, Material Testing Machine (LLOYD) were employed to analyze the physical and mechanical properties differentially. In addition, the drug release and the wound closure in animal experiments were als

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Luo and Mills. "The Effect of Halloysite Addition on the Material Properties of Chitosan–Halloysite Hydrogel Composites." Gels 5, no. 3 (2019): 40. http://dx.doi.org/10.3390/gels5030040.

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Chitosan-based hydrogels are being widely used in biomedical applications due to their eco-friendly, biodegradable, and biocompatible properties, and their ability to mimic the extracellular matrix of many tissues. However, the application of chitosan hydrogels has been limited due to their inherent mechanical weakness. Halloysite nanotubes (HNTs) are naturally occurring aluminosilicate clay minerals and are widely used as a bulk filler to improve the performance characteristics of many polymeric materials. HNTs have also been shown to be a viable nanocontainer able to provide the sustained re

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Trambitski, Yahor, Olga Kizinievič, and Viktor Kizinievič. "Effect of Modified Starch on Properties of Clay Composites." Materials Science Forum 1071 (October 18, 2022): 215–21. http://dx.doi.org/10.4028/p-x5735l.

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This study is devoted to clay modification with a corn starch biopolymer. Authors given the assessment of three different starch thermal modifications (cold, hot and combined), as well as their effect on the clay composite. Described the principle of starch thermal modification and its structural transformations during heat treatment. Incorporation of the gelated starch into clay body contributes to the strength increasing of the clay composite up 18% to 126% for gelatinized and retrograded starch, respectively. Due to its covering properties, the gelled and retrograded starch hydrogel integra

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Wu, Te Hsing, Hong Ru Lin, Lie Hang Shen, and Jia Hau Liu. "Wound Healing Based on PU/Hydrogel Nanocompounds Containing FGF-2 and Related Dressings by Radiation Method." Advanced Materials Research 79-82 (August 2009): 437–40. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.437.

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PU/hydrogel compounds prepared byγ-ray radiation technique were investigated in this study. We used nanosized clay solution or powder, Polyurethane (PU), thermosensitive N-isopropyl acrylamide (NIPAAm) and acrylic acid (AAc) as starting materials to prepare PU/hydrogel nanocomposite products. The dipping and weighing tests, Material Testing Machine (LLOYD) were utilized to analyze the physical and mechanical properties differentially. In addition, the drug release and wound closure experiments were also finished by Enzyme-link immunosorbent assay (ELISA) reader and five groups of treatment dre

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Silva do Nascimento, Danielle, Mariana Etcheverry, Angie E. Orduz, Carolina V. Waiman, and Graciela P. Zanini. "Adsorption of cationic surfactant as a probe of the montmorillonite surface reactivity in the alginate hydrogel composites." RSC Advances 12, no. 54 (2022): 35469–76. http://dx.doi.org/10.1039/d2ra07405b.

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Clay included alginate-clay composites is the only responsible for benzalkonium chloride adsorption. Adsorption mechanism occurs by cation exchange at low concentrations. The clay encapsulation promotes tail–tail interaction among surfactants.

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Hu, Hao, Chao Huang, Massimiliano Galluzzi, et al. "Editing the Shape Morphing of Monocomponent Natural Polysaccharide Hydrogel Films." Research 2021 (June 3, 2021): 1–12. http://dx.doi.org/10.34133/2021/9786128.

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Shape-morphing hydrogels can be widely used to develop artificial muscles, reconfigurable biodevices, and soft robotics. However, conventional approaches for developing shape-morphing hydrogels highly rely on composite materials or complex manufacturing techniques, which limit their practical applications. Herein, we develop an unprecedented strategy to edit the shape morphing of monocomponent natural polysaccharide hydrogel films via integrating gradient cross-linking density and geometry effect. Owing to the synergistic effect, the shape morphing of chitosan (CS) hydrogel films with gradient

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Huang, Runzhou, Xian Zhang, Huiyuan Li, Dingguo Zhou, and Qinglin Wu. "Bio-Composites Consisting of Cellulose Nanofibers and Na+ Montmorillonite Clay: Morphology and Performance Property." Polymers 12, no. 7 (2020): 1448. http://dx.doi.org/10.3390/polym12071448.

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This paper reports the usage of cellulose nanofibers (CNFs) as a continuous nanoporous matrix and nanoclay (NC) as additive to fabricate hybrid films. CNF/Cloisite Na+ nanoclay composite films containing 10–50 wt % of NC were prepared for the study. The effects of NC incorporation and its content on mechanical, wettability and thermal degradation properties were investigated. The results showed that the film had a multilayer structure with gradually deposited CNT-NC hybrid on the filter paper Pure CNF films had higher moduli compared with those from the composite films, as the incorporation of

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Omrani, Sondes, Safa Gamoudi, César Viseras, Younes Moussaoui, and C. Ignacio Sainz-Díaz. "The Use of Organoclays as Excipient for Metformin Delivery: Experimental and Computational Study." Molecules 29, no. 19 (2024): 4612. http://dx.doi.org/10.3390/molecules29194612.

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This work combines experimental and computational modeling studies for the preparation of a composite of metformin and an organoclay, examining the advantages of a Tunisian clay used for drug delivery applications. The clay mineral studied is a montmorillonite-like smectite (Sm-Na), and the organoclay derivative (HDTMA-Sm) was used as a drug carrier for metformin hydrochloride (MET). In order to assess the MET loading into the clays, these materials were characterized by means of cation exchange capacity assessment, specific surface area measurement, and with the techniques of X-ray diffractio

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Warren, David S., Sam P. H. Sutherland, Jacqueline Y. Kao, Geoffrey R. Weal, and Sean M. Mackay. "The Preparation and Simple Analysis of a Clay Nanoparticle Composite Hydrogel." Journal of Chemical Education 94, no. 11 (2017): 1772–79. http://dx.doi.org/10.1021/acs.jchemed.6b00389.

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