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Varadarajan A, Badani Prado RM, Elmore K, Mishra S, Kundu S. Effects of concentration of hydrophobic component and swelling in saline solutions on mechanical properties of a stretchable hydrogel. SOFT MATTER 2024; 20:869-876. [PMID: 38170915 DOI: 10.1039/d3sm01215h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
An elastic biopolymer, resilin possesses exceptional qualities such as high stretchability and resilience. Such attributes are utilized in nature by many species for mechanical energy storage to facilitate movement. The properties of resilin are attributed to the balanced combination of hydrophilic and hydrophobic segments. To mimic the properties of resilin, we developed a hydrogel system composed of hydrophilic acrylic acid (AAc) and methacrylamide (MAM) chains and hydrophobic poly(propylene glycol diacrylate) (PPGDA) chains. The gel was produced through free-radical polymerization in 0.8 M NaCl solutions using KPS as an initiator. In these gels, AAc and MAM can form hydrogen bonds, whereas the association between PPGDA chains can lead to hydrophobic domains. The PPGDA concentration affects the level of hydrogen bonding and gel mechanical properties. Tensile experiments revealed that the elastic modulus increased with a higher PPGDA concentration. Retraction experiments demonstrated increased velocity and acceleration when released from a stretched state with increasing PPGDA concentration. Swelling and deswelling of gels in saline solutions led to a change in mechanical properties and retraction behavior. This study shows that the stretchability and resilience of these hydrogels can be adjusted by changing the concentration of hydrophobic components.
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Affiliation(s)
- Anandavalli Varadarajan
- Dave C Swalm School of Chemical Engineering, Mississippi State University, MS State, MS, 39762, USA.
| | - Rosa Maria Badani Prado
- Dave C Swalm School of Chemical Engineering, Mississippi State University, MS State, MS, 39762, USA.
| | - Katherine Elmore
- Dave C Swalm School of Chemical Engineering, Mississippi State University, MS State, MS, 39762, USA.
| | - Satish Mishra
- Dave C Swalm School of Chemical Engineering, Mississippi State University, MS State, MS, 39762, USA.
| | - Santanu Kundu
- Dave C Swalm School of Chemical Engineering, Mississippi State University, MS State, MS, 39762, USA.
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Bhuyan MM, Jeong JH. Synthesis and Characterization of Gamma Radiation Induced Diallyldimethylammonium Chloride-Acrylic Acid-(3-Acrylamidopropyl) Trimethylammonium Chloride Superabsorbent Hydrogel. Gels 2023; 9:gels9020159. [PMID: 36826329 PMCID: PMC9956196 DOI: 10.3390/gels9020159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/13/2023] [Accepted: 02/16/2023] [Indexed: 02/19/2023] Open
Abstract
The gamma radiation technique is simple and time-saving for the synthesis of pure hydrogels. The present work focuses on synthesizing and characterizing Diallyldimethylammonium Chloride-Acrylic acid-(3-Acrylamidopropyl) trimethylammonium Chloride (DADMAC-AAc-APTAC) superabsorbent hydrogels. The hydrogels were synthesized by applying gamma radiation of different doses (2 kGy to 30 kGy) to two different compositions of monomers. The equilibrium swelling was found to be 33483.48% of dried gel for a 1:0.5:1 composition ratio of monomers at a 2 kGy radiation dose. Therefore, on the basis of equilibrium swelling, 2 kGy is the optimum radiation dose for synthesizing the hydrogel. Fourier transform infrared (FTIR), nuclear magnetic resonance (NMR) spectroscopy, and X-ray diffraction (XRD) characterization techniques were used to analyze and confirm the structure of the hydrogel. Thermogravimetric analysis (TGA) and Scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS) clearly showed the thermal stability and surface morphology of the gel. Therefore, it can be concluded that hydrogels can be used in metal adsorption, drug delivery, and other fields of study.
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Affiliation(s)
- Md Murshed Bhuyan
- Research Institute of Environment for Sustainability, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka 819-0395, Japan
- Thermal-Fluid Energy Machine Lab., Department of Mechanical Engineering, Gachon University, 1342, Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Gyeonggi-do, Republic of Korea
- Correspondence: (M.M.B.); (J.-H.J.); Tel./Fax: +82-42-750-5654 (J.-H.J.)
| | - Jae-Ho Jeong
- Thermal-Fluid Energy Machine Lab., Department of Mechanical Engineering, Gachon University, 1342, Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Gyeonggi-do, Republic of Korea
- Correspondence: (M.M.B.); (J.-H.J.); Tel./Fax: +82-42-750-5654 (J.-H.J.)
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Polysaccharide gum based network hydrogels for controlled drug delivery of ceftriaxone: Synthesis, Characterization and biomedical evaluations. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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4
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Singh B, Devi K, Sharma D, Sharma P. Synthesis and characterization of modified bioactive arabinoxylan-psyllium: Evaluation of molecular interactions, physiochemical and biomedical properties. Int J Biol Macromol 2022; 221:1053-1064. [PMID: 36108744 DOI: 10.1016/j.ijbiomac.2022.09.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/21/2022] [Accepted: 09/07/2022] [Indexed: 11/17/2022]
Abstract
Keeping in view the future prospectus of carbohydrate polymers, present research report is an elaboration, exploration and execution of the research expectancy in area of these polymers by researchers like John F. Kennedy. Herein, molecular interactions and physiochemical properties of modified bioactive arabinoxylan-psyllium have been evaluated for drug delivery applications. Arabinoxylan-psyllium was modified with sulphated and amide copolymers and co-polymers were characterized by SEMs, AFM, FTIR, XRD, solid state 13C NMR, TGA-DSC and water absorption studies. The 13C-NMR and FTIR confirmed grafted copolymers. The polymer-blood interactions revealed non-thrombogenic nature with thrombose percentage 63.17 ± 5.61 % and polymer-mucous membrane interactions showed detachment force 0.237 ± 0.078Nwith bio-membrane in mucoadhesion test. The pH responsible gels exhibited 44.49 ± 3.12 % inhibitions of free radicals in DPPH assay. The polymer-drug interactions demonstrated sustained diffusion of methotrexate with non-Fickian diffusion and Korsmeyer-Peppas kinetic model. Overall, co-polymeric network structure was found useful in colon specific drug delivery.
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Affiliation(s)
- Baljit Singh
- Department of Chemistry, Himachal Pradesh University, Shimla 171005, India.
| | - Kavita Devi
- Department of Chemistry, Himachal Pradesh University, Shimla 171005, India
| | - Diwanshi Sharma
- Department of Chemistry, Himachal Pradesh University, Shimla 171005, India
| | - Prerna Sharma
- Department of Chemistry, Himachal Pradesh University, Shimla 171005, India
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5
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Alavarse AC, Frachini ECG, da Silva RLCG, Lima VH, Shavandi A, Petri DFS. Crosslinkers for polysaccharides and proteins: Synthesis conditions, mechanisms, and crosslinking efficiency, a review. Int J Biol Macromol 2022; 202:558-596. [PMID: 35038469 DOI: 10.1016/j.ijbiomac.2022.01.029] [Citation(s) in RCA: 65] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 12/20/2021] [Accepted: 01/06/2022] [Indexed: 01/16/2023]
Abstract
Polysaccharides and proteins are important macromolecules for developing hydrogels devoted to biomedical applications. Chemical hydrogels offer chemical, mechanical, and dimensional stability than physical hydrogels due to the chemical bonds among the chains mediated by crosslinkers. There are many crosslinkers to synthesize polysaccharides and proteins based on hydrogels. In this review, we revisited the crosslinking reaction mechanisms between synthetic or natural crosslinkers and polysaccharides or proteins. The selected synthetic crosslinkers were glutaraldehyde, carbodiimide, boric acid, sodium trimetaphosphate, N,N'-methylene bisacrylamide, and polycarboxylic acid, whereas the selected natural crosslinkers included transglutaminase, tyrosinase, horseradish peroxidase, laccase, sortase A, genipin, vanillin, tannic acid, and phytic acid. No less important are the reactions involving click chemistry and the macromolecular crosslinkers for polysaccharides and proteins. Literature examples of polysaccharides or proteins crosslinked by the different strategies were presented along with the corresponding highlights. The general mechanism involved in chemical crosslinking mediated by gamma and UV radiation was discussed, with particular attention to materials commonly used in digital light processing. The evaluation of crosslinking efficiency by gravimetric measurements, rheology, and spectroscopic techniques was presented. Finally, we presented the challenges and opportunities to create safe chemical hydrogels for biomedical applications.
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Affiliation(s)
- Alex Carvalho Alavarse
- Fundamental Chemistry Department, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes 748, 05508-000 São Paulo, Brazil
| | - Emilli Caroline Garcia Frachini
- Fundamental Chemistry Department, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes 748, 05508-000 São Paulo, Brazil
| | | | - Vitoria Hashimoto Lima
- Fundamental Chemistry Department, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes 748, 05508-000 São Paulo, Brazil
| | - Amin Shavandi
- Université libre de Bruxelles (ULB), École polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050 Brussels, Belgium
| | - Denise Freitas Siqueira Petri
- Fundamental Chemistry Department, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes 748, 05508-000 São Paulo, Brazil.
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6
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Modulating the physico-mechanical properties of polyacrylamide/gelatin hydrogels for tissue engineering application. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03592-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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7
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Ahmad K, Hui YZ, Bairq ZAS. Comparison of the performance of a hydrogel and hybrid graphene oxide with hydrogel to remove iron (III) and phenol from wastewater. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04110-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Safaei F, Khalili S, Khorasani SN, Neisiany RE. Preparation of an acrylic acid-based superabsorbent composite: investigation of synthesis parameters. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-019-00927-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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9
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Shahzamani M, Taheri S, Roghanizad A, Naseri N, Dinari M. Preparation and characterization of hydrogel nanocomposite based on nanocellulose and acrylic acid in the presence of urea. Int J Biol Macromol 2020; 147:187-193. [DOI: 10.1016/j.ijbiomac.2020.01.038] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 01/02/2020] [Accepted: 01/05/2020] [Indexed: 12/16/2022]
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10
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Wang L, Cavaco-Paulo A, Xu B, Martins M. Polymeric Hydrogel Coating for Modulating the Shape of Keratin Fiber. Front Chem 2019; 7:749. [PMID: 31824915 PMCID: PMC6879650 DOI: 10.3389/fchem.2019.00749] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 10/21/2019] [Indexed: 01/26/2023] Open
Abstract
Hydrogel coating was explored to modulate the shape of keratin hair fiber. The motivation was the development of an eco-friendly methodology with non-toxic chemicals to modulate keratin fiber. Polymeric hydrogel of acrylic acid and N-N-dimethylacrylamide was prepared by free-radical polymerization in aqueous solution, using nano-alumina particles as crosslinker and potassium persulfate as an initiator. Physico-chemical properties of the hydrogel was investigated by Fourier transformer infrared spectrum (FTIR), thermal analysis and swelling ratio behavior. After hydrogel coating, morphological modification was observed from straight to curly hair effect. The influence of hydrogel coating on hair fiber was evaluated by perming efficiency supported by X-ray diffraction and morphological characterization (SEM and AFM). The durability of hydrogel coating was tested until four wash processes maintaining around 65% the new configuration of the hair fiber.
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Affiliation(s)
- Lanlan Wang
- International Joint Research Laboratory for Textile and Fiber Bioprocesses, Jiangnan University, Wuxi, China
| | - Artur Cavaco-Paulo
- International Joint Research Laboratory for Textile and Fiber Bioprocesses, Jiangnan University, Wuxi, China.,Centre of Biological Engineering (CEB), University of Minho, Braga, Portugal
| | - Bo Xu
- International Joint Research Laboratory for Textile and Fiber Bioprocesses, Jiangnan University, Wuxi, China.,Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, China
| | - Madalena Martins
- Centre of Biological Engineering (CEB), University of Minho, Braga, Portugal
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11
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Kim YJ, Hong SJ, Shin WS, Kwon YR, Lim SH, Kim HC, Kim JS, Kim JW, Kim DH. Preparation of a biodegradable superabsorbent polymer and measurements of changes in absorption properties depending on the type of surface‐crosslinker. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4767] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yoo Jin Kim
- Human Convergence Technology GroupKorea Institute of Industrial Technology (KITECH) 143, Hanggaul‐ro Sangnok‐gu, Ansan‐si Gyeonggi‐do 15588 Republic of Korea
- Department of Bio‐nano EngineeringHanyang University 55, Hanggaul‐ro Sangnok‐gu, Ansan‐si Gyeonggi‐do 15588 Republic of Korea
| | - Seok Ju Hong
- Human Convergence Technology GroupKorea Institute of Industrial Technology (KITECH) 143, Hanggaul‐ro Sangnok‐gu, Ansan‐si Gyeonggi‐do 15588 Republic of Korea
- Department of Material Chemical EngineeringHanyang University 55, Hanggaul‐ro Sangnok‐gu, Ansan‐si Gyeonggi‐do 15588 Republic of Korea
| | - Woo Seung Shin
- Human Convergence Technology GroupKorea Institute of Industrial Technology (KITECH) 143, Hanggaul‐ro Sangnok‐gu, Ansan‐si Gyeonggi‐do 15588 Republic of Korea
- Department of Material Chemical EngineeringHanyang University 55, Hanggaul‐ro Sangnok‐gu, Ansan‐si Gyeonggi‐do 15588 Republic of Korea
| | - Yong Rok Kwon
- Human Convergence Technology GroupKorea Institute of Industrial Technology (KITECH) 143, Hanggaul‐ro Sangnok‐gu, Ansan‐si Gyeonggi‐do 15588 Republic of Korea
- Department of Material Chemical EngineeringHanyang University 55, Hanggaul‐ro Sangnok‐gu, Ansan‐si Gyeonggi‐do 15588 Republic of Korea
| | - Seung Ho Lim
- Human Convergence Technology GroupKorea Institute of Industrial Technology (KITECH) 143, Hanggaul‐ro Sangnok‐gu, Ansan‐si Gyeonggi‐do 15588 Republic of Korea
- Department of Material Chemical EngineeringHanyang University 55, Hanggaul‐ro Sangnok‐gu, Ansan‐si Gyeonggi‐do 15588 Republic of Korea
| | - Hae Chan Kim
- Human Convergence Technology GroupKorea Institute of Industrial Technology (KITECH) 143, Hanggaul‐ro Sangnok‐gu, Ansan‐si Gyeonggi‐do 15588 Republic of Korea
- Department of Material Chemical EngineeringHanyang University 55, Hanggaul‐ro Sangnok‐gu, Ansan‐si Gyeonggi‐do 15588 Republic of Korea
| | - Jung Soo Kim
- Human Convergence Technology GroupKorea Institute of Industrial Technology (KITECH) 143, Hanggaul‐ro Sangnok‐gu, Ansan‐si Gyeonggi‐do 15588 Republic of Korea
- Department of PackagingYonsei University 1, Yeonsedae‐gil Heungeop‐myeon, Wonju‐si Gangwon‐do 26493 Republic of Korea
| | - Jin Woong Kim
- Department of Chemical EngineeringSungkyunkwan University 2066, Seobu‐ro Jangan‐gu, Suwon‐si Gyeonggi‐do 16419 Republic of Korea
| | - Dong Hyun Kim
- Human Convergence Technology GroupKorea Institute of Industrial Technology (KITECH) 143, Hanggaul‐ro Sangnok‐gu, Ansan‐si Gyeonggi‐do 15588 Republic of Korea
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12
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Sarmah D, Karak N. Biodegradable superabsorbent hydrogel for water holding in soil and controlled‐release fertilizer. J Appl Polym Sci 2019. [DOI: 10.1002/app.48495] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Dimpee Sarmah
- Advanced Polymer and Nanomaterial Laboratory, Department of Chemical SciencesTezpur University Tezpur 784028 Assam India
| | - Niranjan Karak
- Advanced Polymer and Nanomaterial Laboratory, Department of Chemical SciencesTezpur University Tezpur 784028 Assam India
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13
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Fuzzy Optimization on the Synthesis of Chitosan-Graft-Polyacrylic Acid with Montmorillonite as Filler Material: A Case Study. Polymers (Basel) 2019; 11:polym11040738. [PMID: 31018629 PMCID: PMC6523622 DOI: 10.3390/polym11040738] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 04/19/2019] [Accepted: 04/21/2019] [Indexed: 12/14/2022] Open
Abstract
In this paper, the synthesis of a chitosan–montmorillonite nanocomposite material grafted with acrylic acid is presented based on its function in a case study analysis. Fuzzy optimization is used for a multi-criteria decision analysis to determine the best desirable swelling capacity (YQ) of the material synthesis at its lowest possible variable cost. For YQ, the integrating the result’s cumulative uncertainty is an essential element to investigate the feasibility of the developed model equation. The Pareto set analysis is able to set the appropriate boundary limits for YQ and the variable cost. Two case studies are presented in determining the lowest possible cost: Case 1 for maximum YQ, and Case 2 for minimum YQ. These boundary limits were used in the fuzzy optimization to determine its global optimum results that achieved the overall satisfaction ratings of 67.2% (Case 1) and 52.3% (Case 2). The synthesis of the polyacrylic acid/chitosan material for Case 1 resulted in 305 g/g YQ and 10.8 USD/kg, while Case 2 resulted in 97 g/g YQ and 12.3 USD/kg. Thus, the fuzzy optimization approach proves to be a practical method for examining the best possible compromise solution based on the desired function to adequately synthesize a material.
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14
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Ibrahim AG, Abdel Hai F, Abd El-Wahab H, Aboelanin H. Methylene blue removal using a novel hydrogel containing 3-Allyloxy-2-hydroxy-1-propanesulfonic acid sodium salt. ADVANCES IN POLYMER TECHNOLOGY 2018. [DOI: 10.1002/adv.22140] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ahmed Galal Ibrahim
- Department of Applied Chemistry; Faculty of Science; Al-Azhar University; Cairo Egypt
| | - Farag Abdel Hai
- Department of Applied Chemistry; Faculty of Science; Al-Azhar University; Cairo Egypt
| | - Hamada Abd El-Wahab
- Department of Applied Chemistry; Faculty of Science; Al-Azhar University; Cairo Egypt
| | - Hamza Aboelanin
- Department of Applied Chemistry; Faculty of Science; Al-Azhar University; Cairo Egypt
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15
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Pirayesh A, Salami-Kalajahi M, Roghani-Mamaqani H, Mazloomi-Rezvani M. Synthesis and characterization of bis(oxiranylmethyl)sulfanes as new epoxide-terminated polysulfide prepolymers and their use in synthesis of new amine-cured polysulfide polymers. ADVANCES IN POLYMER TECHNOLOGY 2018. [DOI: 10.1002/adv.22117] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Amin Pirayesh
- Department of Polymer Engineering; Sahand University of Technology; Tabriz Iran
- Institute of Polymeric Materials; Sahand University of Technology; Tabriz Iran
| | - Mehdi Salami-Kalajahi
- Department of Polymer Engineering; Sahand University of Technology; Tabriz Iran
- Institute of Polymeric Materials; Sahand University of Technology; Tabriz Iran
| | - Hossein Roghani-Mamaqani
- Department of Polymer Engineering; Sahand University of Technology; Tabriz Iran
- Institute of Polymeric Materials; Sahand University of Technology; Tabriz Iran
| | - Mahsa Mazloomi-Rezvani
- Department of Polymer Engineering; Sahand University of Technology; Tabriz Iran
- Institute of Polymeric Materials; Sahand University of Technology; Tabriz Iran
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Lee K, Kim HJ, Jung D, Oh Y, Lee H, Han C, Chang JY, Kim H. Rapid Accessible Fabrication and Engineering of Bilayered Hydrogels: Revisiting the Cross-Linking Effect on Superabsorbent Poly(acrylic acid). ACS OMEGA 2018; 3:3096-3103. [PMID: 31458571 PMCID: PMC6641435 DOI: 10.1021/acsomega.8b00079] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 03/05/2018] [Indexed: 05/20/2023]
Abstract
Superabsorbent hydrogels are significant not only in materials science but also in industries and daily life, being used in diapers or soil conditioners as typical examples. The main feature of these materials is their capacity to hold considerable amount of water, which is strongly dependent on the cross-linking density. This study focuses on the preparation of hydrogels by reweighing the effect of cross-linking density on physical properties, which provides green fabrication of bilayered hydrogels that consist of homogeneous structural motifs but show programmed responses via sequential radical polymerization. In particular, when two hydrogel layers containing different cross-linking densities are joined together, an integrated linear bilayer shows heterogeneous deformation triggered by water. We monitor the linear hydrogel bilayer bending into a circle and engineer it by incorporating disperse dyes, changing colors as well as physical properties. In addition, we demonstrate an electric circuit switch using a patterned hydrogel. Anisotropic shape change of the polyelectrolyte switch closes an open circuit and lights a light-emitting diode in red. This proposed fabrication and engineering can be expanded to other superabsorbent systems and create smart responses in cross-linked systems for biomedical or environmental applications.
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Affiliation(s)
- Kyoung
Min Lee
- School
of Polymer Science and Engineering, Chonnam
National University, Gwangju 61186, Korea
- Department
of Materials Science and Engineering, College of Engineering, Seoul National University, Seoul 08826, Korea
| | - Hea Ji Kim
- School
of Polymer Science and Engineering, Chonnam
National University, Gwangju 61186, Korea
| | - Doyoung Jung
- School
of Polymer Science and Engineering, Chonnam
National University, Gwangju 61186, Korea
| | - Yuree Oh
- School
of Polymer Science and Engineering, Chonnam
National University, Gwangju 61186, Korea
| | - Hyemin Lee
- Basic
Materials and Chemicals R&D, LG Chem, Ltd, R&D Campus Daejeon, 188 Moonji-ro, Yuseong-gu, Daejeon 34122, Korea
| | - Changsun Han
- Basic
Materials and Chemicals R&D, LG Chem, Ltd, R&D Campus Daejeon, 188 Moonji-ro, Yuseong-gu, Daejeon 34122, Korea
| | - Ji Young Chang
- Department
of Materials Science and Engineering, College of Engineering, Seoul National University, Seoul 08826, Korea
| | - Hyungwoo Kim
- School
of Polymer Science and Engineering, Chonnam
National University, Gwangju 61186, Korea
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Burek M, Kowalczyk M, Czuba ZP, Krol W, Pilawka R, Waskiewicz S. Poly(N-isopropylacrylamide) hydrogels cross-linked by α,α-trehalose diacetals as thermo-responsive and acid-degradable carriers for drug delivery. Polym Degrad Stab 2016. [DOI: 10.1016/j.polymdegradstab.2016.05.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Bajpai SK, Bajpai M, Shah FF. Alginate dialdehyde (AD)-crosslinked casein films: synthesis, characterization and water absorption behavior. Des Monomers Polym 2016. [DOI: 10.1080/15685551.2016.1169374] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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19
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Synthesis and characterization of agar-starch based hydrogels for slow herbicide delivery applications. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s12588-015-9126-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Singh B, Sharma V. Influence of polymer network parameters of tragacanth gum-based pH responsive hydrogels on drug delivery. Carbohydr Polym 2014; 101:928-40. [DOI: 10.1016/j.carbpol.2013.10.022] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 09/20/2013] [Accepted: 10/07/2013] [Indexed: 10/26/2022]
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22
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Influence of ultrasonic parameters on degradation of acrylic acid/acrylamide copolymer based superabsorbent hydrogels cross-linked with NMBA. IRANIAN POLYMER JOURNAL 2011. [DOI: 10.1007/s13726-011-0001-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Abstract
Novel salt-resistance superabsobent microspheres based on acrylamide (AM), 2-acrylamido-2-methylpropane sulphonic acid (AMPS) by inverse suspension copolymerization using ammonium persulfate (APS) as the initiator and N,N-methylene bisacrylamide (MBA) as the crosslinking agent and surfactant PVA as disperse agent are prepared. The experimental results of salt-resistance superabsobent microspheres show the salt absorbency decreased with the increase of salt concentration; The maximum salt absorbency is 132g/g within 75min in 0.9% NaCl solution and the effect of calcium ion on salt absorbency is much greater than that of sodium ion. FTIR indicates the structure of the acrylamide and 2-acrylamido-2- methylpropane sulphonic acid copolymer. SEM indicates that the number of the micropores largely decreased with the water/oil ratio increasing from 4% to 10%. Elemental analysis indicate that the measured values of carbon, sulfur, nitrogen, hydrogen four elements is very close to theoretical value.
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