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Zhu T, Wan L, Li R, Zhang M, Li X, Liu Y, Cai D, Lu H. Janus structure hydrogels: recent advances in synthetic strategies, biomedical microstructure and (bio)applications. Biomater Sci 2024; 12:3003-3026. [PMID: 38695621 DOI: 10.1039/d3bm02051g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
Janus structure hydrogels (JSHs) are novel materials. Their primary fabrication methods and various applications have been widely reported. JSHs are primarily composed of Janus particles (JNPs) and polysaccharide components. They exhibit two distinct physical or chemical properties, generating intriguing characteristics due to their asymmetric structure. Normally, one side (adhesive interface) is predominantly constituted of polysaccharide components, primarily serving excellent adhesion. On the other side (functional surface), they integrate diverse functionalities, concurrently performing a plethora of synergistic functions. In the biomedical field, JSHs are widely applied in anti-adhesion, drug delivery, wound healing, and other areas. It also exhibits functions in seawater desalination and motion sensing. Thus, JSHs hold broad prospects for applications, and they possess significant research value in nanotechnology, environmental science, healthcare, and other fields. Additionally, this article proposes the challenges and future work facing these fields.
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Affiliation(s)
- Taifu Zhu
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, China.
| | - Lei Wan
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, China.
| | - Ruiqi Li
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, China.
| | - Mu Zhang
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, China.
| | - Xiaoling Li
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, China.
| | - Yilong Liu
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, China.
| | - Dingjun Cai
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, China.
| | - Haibin Lu
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, China.
- Department of Stomatology, The Fifth Affiliated Hospital, Southern Medical University, Guangzhou, 510900, China.
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Li Y, Liu Y, Liu H, Yu S, Ba Z, Liu M, Ma S, Xing LB. Design of Stretchable and Conductive Self-Adhesive Hydrogels as Flexible Sensors by Guar-Gum-Enabled Dynamic Interactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:10305-10312. [PMID: 38696716 DOI: 10.1021/acs.langmuir.4c00908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2024]
Abstract
The limited elasticity and inadequate bonding of hydrogels made from guar gum (GG) significantly hinder their widespread implementation in personalized wearable flexible electronics. In this study, we devise GG-based self-adhesive hydrogels by creating an interpenetrating network of GG cross-linked with acrylic, 4-vinylphenylboronic acid, and Ca2+. With the leverage of the dynamic interactions (hydrogen bonds, borate ester bonds, and coordination bonds) between -OH in GG and monomers, the hydrogel exhibits a high stretchability of 700%, superior mechanical stress of 110 kPa, and robust adherence to several substrates. The adhesion strength of 54 kPa on porcine skin is obtained. Furthermore, the self-adhesive hydrogel possesses stable conductivity, an elevated gauge factor (GF), and commendable durability. It can be affixed to the human body as a strain sensor to obtain precise monitoring of human movement behavior. Our research offers possibilities for the development of GG-based hydrogels and applications in wearable electronics and medical monitoring.
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Affiliation(s)
- Yali Li
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255000, People's Republic of China
| | - Yanru Liu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255000, People's Republic of China
| | - Hui Liu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255000, People's Republic of China
| | - Shengsheng Yu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255000, People's Republic of China
| | - Zhaowen Ba
- School of Mechanical Engineering, Shandong University of Technology, Zibo, Shandong 255000, People's Republic of China
| | - Mingming Liu
- School of Mechanical Engineering, Shandong University of Technology, Zibo, Shandong 255000, People's Republic of China
| | - Shuanhong Ma
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, People's Republic of China
- Shandong Laboratory of Yantai Advanced Materials and Green Manufacture, Yantai, Shandong 264006, People's Republic of China
| | - Ling-Bao Xing
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255000, People's Republic of China
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Jiang Y, Zhu C, Ma X, Fan D. Janus hydrogels: merging boundaries in tissue engineering for enhanced biomaterials and regenerative therapies. Biomater Sci 2024; 12:2504-2520. [PMID: 38529571 DOI: 10.1039/d3bm01875j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
In recent years, the design and synthesis of Janus hydrogels have witnessed a thriving development, overcoming the limitations of single-performance materials and expanding their potential applications in tissue engineering and regenerative medicine. Janus hydrogels, with their exceptional mechanical properties and excellent biocompatibility, have emerged as promising candidates for various biomedical applications, including tissue engineering and regenerative therapies. In this review, we present the latest progress in the synthesis of Janus hydrogels using commonly employed preparation methods. We elucidate the surface and interface interactions of these hydrogels and discuss the enhanced properties bestowed by the unique "Janus" structure in biomaterials. Additionally, we explore the applications of Janus hydrogels in facilitating regenerative therapies, such as drug delivery, wound healing, tissue engineering, and biosensing. Furthermore, we analyze the challenges and future trends associated with the utilization of Janus hydrogels in biomedical applications.
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Affiliation(s)
- Yingxue Jiang
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an, 710069, China.
- Shaanxi Key Laboratory of Degradable Biomedical Materials and Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an, 710069, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi'an, 710069, China
| | - Chenhui Zhu
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an, 710069, China.
- Shaanxi Key Laboratory of Degradable Biomedical Materials and Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an, 710069, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi'an, 710069, China
| | - Xiaoxuan Ma
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an, 710069, China.
- Shaanxi Key Laboratory of Degradable Biomedical Materials and Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an, 710069, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi'an, 710069, China
| | - Daidi Fan
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an, 710069, China.
- Shaanxi Key Laboratory of Degradable Biomedical Materials and Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an, 710069, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi'an, 710069, China
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4
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Oliveira MX, Canafístula FVC, Ferreira CRN, Fernandes LVO, de Araújo AR, Ribeiro FOS, Souza JMT, Lima IC, Assreuy AMS, Silva DA, Filho JDBM, Araújo AJ, Maciel JS, Feitosa JPA. Hydrogels dressings based on guar gum and chitosan: Inherent action against resistant bacteria and fast wound closure. Int J Biol Macromol 2023; 253:127281. [PMID: 37806422 DOI: 10.1016/j.ijbiomac.2023.127281] [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: 06/09/2023] [Revised: 10/03/2023] [Accepted: 10/05/2023] [Indexed: 10/10/2023]
Abstract
Hydrogels made with depolymerized guar gum, oxidized with theoretical oxidation degrees of 20, 35 and 50 %, were obtained via Schiff's base reaction with N-succinyl chitosan. The materials obtained were subjected to characterization by FT-IR, rheology, swelling, degradation, and morphology. Additionally, their gelation time categorized all three hydrogels as injectable. The materials' swelling degrees in Phosphate-Buffered Saline (PBS) were in the range of 26-35 g of fluid/g gel and their pore size distribution was heterogeneous, with pores varying from 67 to 93 μm. All hydrogels degraded in PBS solution, but maintained around 40 % of their initial mass after 28 days, which was more than enough time for wound healing. The biomaterials were also flexible, self-repairing, adhesive and cytocompatible and presented intrinsic actions, regardless of the presence of additives or antibiotics, against gram-positive (Staphylococcus aureus, Staphylococcus epidermidis) and gram-negative bacteria (Escherichia coli). However, the most pronounced bactericidal effect was against resistant Staphylococcus aureus - MRSA. In vivo assays, performed with 50 % oxidized gum gel, demonstrated that this material exerted anti-inflammatory effects, accelerating the healing process and restoring tissues by approximately 99 % within 14 days. In conclusion, these hydrogels have unique characteristics, making them excellent candidates for wound-healing dressings.
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Affiliation(s)
- Matheus X Oliveira
- Department of Organic and Inorganic Chemistry, Polymer Laboratory, Federal University of Ceará, UFC, Fortaleza, CE, Brazil
| | | | - Carlos Rhamon N Ferreira
- Department of Organic and Inorganic Chemistry, Polymer Laboratory, Federal University of Ceará, UFC, Fortaleza, CE, Brazil
| | - Ludmila Virna O Fernandes
- Department of Organic and Inorganic Chemistry, Polymer Laboratory, Federal University of Ceará, UFC, Fortaleza, CE, Brazil
| | - Alyne R de Araújo
- Research Center on Biodiversity and Biotechnology, BIOTEC, Parnaiba Delta Federal University, UFDPar, Parnaíba, PI, Brazil
| | - Fábio Oliveira S Ribeiro
- Research Center on Biodiversity and Biotechnology, BIOTEC, Parnaiba Delta Federal University, UFDPar, Parnaíba, PI, Brazil
| | - Jessica Maria T Souza
- Cell Culture Laboratory of the Delta, LCCDelta, Parnaiba Delta Federal University, UFDPar, Parnaíba, PI, Brazil
| | - Iásly C Lima
- Superior Institute of Biomedical Sciences, State University of Ceará, UECE, Fortaleza, CE, Brazil
| | - Ana Maria S Assreuy
- Superior Institute of Biomedical Sciences, State University of Ceará, UECE, Fortaleza, CE, Brazil
| | - Durcilene A Silva
- Research Center on Biodiversity and Biotechnology, BIOTEC, Parnaiba Delta Federal University, UFDPar, Parnaíba, PI, Brazil
| | - José Delano Barreto M Filho
- Cell Culture Laboratory of the Delta, LCCDelta, Parnaiba Delta Federal University, UFDPar, Parnaíba, PI, Brazil
| | - Ana Jérsia Araújo
- Cell Culture Laboratory of the Delta, LCCDelta, Parnaiba Delta Federal University, UFDPar, Parnaíba, PI, Brazil
| | - Jeanny S Maciel
- Department of Organic and Inorganic Chemistry, Polymer Laboratory, Federal University of Ceará, UFC, Fortaleza, CE, Brazil
| | - Judith Pessoa A Feitosa
- Department of Organic and Inorganic Chemistry, Polymer Laboratory, Federal University of Ceará, UFC, Fortaleza, CE, Brazil.
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Xiao L, Hou Y, Xue Z, Bai L, Wang W, Chen H, Yang H, Yang L, Wei D. Soy Protein Isolate/Genipin-Based Nanoparticles for the Stabilization of Pickering Emulsion to Design Self-Healing Guar Gum-Based Hydrogels. Biomacromolecules 2023; 24:2087-2099. [PMID: 37079862 DOI: 10.1021/acs.biomac.2c01507] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
Nowadays, stretchable self-healing hydrogels designed by biomass-based materials have gathered remarkable attention in numerous frontier fields such as wound healing, health monitoring issues, and electronic skin. In this study, soy protein isolate (SPI), a common plant protein, was cross-linked to nanoparticles (SPI NPs) by Genipin, (Gen) which was attracted from the native Geniposide. Oil-in-water (O/W) Pickering emulsion was formed by SPI NPs wrapping the linseed oil, and further implanted into poly(acrylic acid)/guar gum (PAA/GG)-based self-healing hydrogels by multiple reversible weak interactions. With the addition of Pickering emulsion, the hydrogels have achieved a remarkable self-healing ability (self-healing efficiency could reach 91.6% within 10 h) and mechanical properties (tensile strength of 0.89 MPa and strain of 853.2%). Therefore, these hydrogels with good reliable durability have outstanding application prospects in sustainable materials.
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Affiliation(s)
- Lixuan Xiao
- School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China
| | - Yaning Hou
- School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China
| | - Zhiyan Xue
- School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China
| | - Liangjiu Bai
- School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China
| | - Wenxiang Wang
- School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China
| | - Hou Chen
- School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China
| | - Huawei Yang
- School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China
| | - Lixia Yang
- School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China
| | - Donglei Wei
- School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China
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6
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Self-healing, antibacterial, and conductive double network hydrogel for strain sensors. Carbohydr Polym 2023; 303:120468. [PMID: 36657864 DOI: 10.1016/j.carbpol.2022.120468] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 12/09/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022]
Abstract
Multifunctional hydrogels have great potential in smart wearable technology, flexible electronic devices, and biomedical research. However, it is highly challenging to prepare unique conductive hydrogels with combined properties such as self-healing, self-adhesive, and antibacterial activity. In this regard, herein, a conductive double network hydrogel (ACBt-PAA/CMCs) was fabricated using carboxymethyl chitosan (CMCs), acrylic acid (AA), and alkaline calcium bentonite (ACBt) via a convenient approach. Owing to the hydrogen bond interaction between PAA and CMCs, the ACBt-PAA/CMCs double network structured hydrogels exhibited excellent self-healing (the tensile strength recovered to 74.3 % after 1 h) and adjustable mechanical properties, in which the fracture stress and strain can be easily adjusted in the range of 0.039 to 0.93 MPa and 564 to 2900 %, respectively. In addition, the ACBt-PAA/CMCs hydrogels exhibited the remarkable antibacterial activities against Escherichia coli (bacterial inhibition efficiency of ~99.99 %) and Staphylococcus aureus (bacterial inhibition efficiency of ~99.98 %). Furthermore, the ACBt-PAA/CMCs hydrogel based wearable skin exhibited an excellent real-time sensing performance for monitoring various motions, signifying outstanding sensing and self-adhesion properties. Considering the unique features such as self-healing, excellent adhesion, highly active strain sensing, and antibacterial activities making the ACBt-PAA/CMCs hydrogel is an excellent multifunctional conductive hydrogel. Hence, we believe that this proposed design method for the fabrication of smart and multifunctional conductive hydrogels, and this ACBt-PAA/CMCs hydrogel could be a promising candidate for flexible wearable materials, health monitoring, and beyond.
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Dalei G, Das S. Polyacrylic acid-based drug delivery systems: A comprehensive review on the state-of-art. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ye W, Guo M, Li Q, Wang L, Zhao C, Xiang D, Lai J, Li H, Li Z, Wu Y. High strength, anti‐freezing, and conductive poly(vinyl alcohol)/urea ionic hydrogels as soft sensor. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wenhao Ye
- School of New Energy and Materials Southwest Petroleum University Chengdu China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu China
| | - Meiling Guo
- The Collaborative Innovation Center of Functional Materials and Devices, School of Materials and Environmental Engineering Chengdu Technological University Chengdu China
| | - Qing Li
- School of New Energy and Materials Southwest Petroleum University Chengdu China
| | - Li Wang
- School of New Energy and Materials Southwest Petroleum University Chengdu China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu China
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, Sichuan Engineering Technology Research Center of Basalt Fiber Composites Development and Application Southwest Petroleum University Chengdu China
| | - Chuanxia Zhao
- School of New Energy and Materials Southwest Petroleum University Chengdu China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu China
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, Sichuan Engineering Technology Research Center of Basalt Fiber Composites Development and Application Southwest Petroleum University Chengdu China
| | - Dong Xiang
- School of New Energy and Materials Southwest Petroleum University Chengdu China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu China
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, Sichuan Engineering Technology Research Center of Basalt Fiber Composites Development and Application Southwest Petroleum University Chengdu China
| | - Jingjuan Lai
- School of New Energy and Materials Southwest Petroleum University Chengdu China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu China
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, Sichuan Engineering Technology Research Center of Basalt Fiber Composites Development and Application Southwest Petroleum University Chengdu China
| | - Hui Li
- School of New Energy and Materials Southwest Petroleum University Chengdu China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu China
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, Sichuan Engineering Technology Research Center of Basalt Fiber Composites Development and Application Southwest Petroleum University Chengdu China
| | - Zhenyu Li
- School of New Energy and Materials Southwest Petroleum University Chengdu China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu China
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, Sichuan Engineering Technology Research Center of Basalt Fiber Composites Development and Application Southwest Petroleum University Chengdu China
| | - Yuanpeng Wu
- School of New Energy and Materials Southwest Petroleum University Chengdu China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu China
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, Sichuan Engineering Technology Research Center of Basalt Fiber Composites Development and Application Southwest Petroleum University Chengdu China
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Cheng C, Ding K, Du W, Wang D, Zhang X. Ultra-sensitive and electrical-mechanical dual self-healing ionic hydrogel-based wearable sensor for human motion detection. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zaidi SFA, Kim YA, Saeed A, Sarwar N, Lee NE, Yoon DH, Lim B, Lee JH. Tannic acid modified antifreezing gelatin organohydrogel for low modulus, high toughness, and sensitive flexible strain sensor. Int J Biol Macromol 2022; 209:1665-1675. [PMID: 35487373 DOI: 10.1016/j.ijbiomac.2022.04.099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/26/2022] [Accepted: 04/14/2022] [Indexed: 12/17/2022]
Abstract
Current hydrogel strain sensors have met assorted essential requirements of wearing comfort, mechanical toughness, and strain sensitivity. However, an increment in the toughness of a hydrogel usually leads to an increase in elastic moduli that could be unfavorable for wearing comfort. In addition, traits of biofriendly and sustainability require synthesis of the hydrogels from natural polymer-based networks. We propose a novel strategy to fabricate an ionic conductive organohydrogel from natural biological macromolecule "gelatin" and polyacid "tannic acid" to resolve these challenges. Tannic acid modified the structure of the gelatin network in the ionic conductive organohydrogels, that not only led to an increase in toughness accompanying a decrease in elastic moduli but also headed to higher strain sensitivity and tunability. The proposed methodology exhibited tunable tensile modulus from 27 to 13 kPa, tensile strength from 287 to 325 kPa, elongation at fracture from 510 to 620%, toughness from 500 to 550 kJ/m3, conductivity from 0.29 to 0.8 S/m, and strain sensitivity (GF = 1.4-6.5). Moreover, the proposed organohydrogel exhibited excellent freezing tolerance. This study provides a facile yet powerful strategy to tune the mechanical and electrical properties of organohydrogels which can be adapted to various wearable sensors.
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Affiliation(s)
- Syed Farrukh Alam Zaidi
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea; Department of Metallurgical and Materials Engineering, University of Engineering and Technology, Lahore 39161, Pakistan
| | - Yun Ah Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Aiman Saeed
- Department of Biomedical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Nasir Sarwar
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea; Department of Textile Engineering, University of Engineering and Technology, Lahore (Faisalabad Campus) 38000, Pakistan
| | - Nae-Eung Lee
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea; SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea; Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea; Research Center for Advanced Materials Technology, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Dae Ho Yoon
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea; SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Byungkwon Lim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea.
| | - Jung Heon Lee
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea; SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea; Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea; Research Center for Advanced Materials Technology, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea.
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11
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Li Z, Cai J, Wei M, Chen J. An UV-photo and ionic dual responsive interpenetrating network hydrogel with shape memory and self-healing properties. RSC Adv 2022; 12:15105-15114. [PMID: 35693233 PMCID: PMC9116958 DOI: 10.1039/d2ra00619g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 05/11/2022] [Indexed: 11/21/2022] Open
Abstract
Shape memory hydrogels have attracted extensive attention in fields such as artificial tissues, biomimetic devices and diagnostics, and intelligent biosensors. However, the practical applications were hindered by the absence of self-healing capability and multi-stimuli-responsiveness. To address these issues, we developed a shape memory hydrogel with self-healing and dual stimuli-response performance. The hydrogel system was constructed via an interpenetrating network consisting of in situ radical polymerization and host-guest interaction. The hydrogel exhibited rapid self-healing property, which can be stretched after self-healing for 1 min at 25 °C. Besides, the hydrogel displayed varied swelling performance in different light or solvent conditions. Moreover, the hydrogel showed a dual stimuli-responsive shape memory effect to ultraviolet (UV) light and ionic strength in 1 min. Such a shape memory hydrogel with self-healing ability and multi-stimuli-responsive properties will offer an option toward intelligent soft materials for biomedical and bionic research.
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Affiliation(s)
- Ziyi Li
- The First Dongguan Affiliated Hospital of Guangdong Medical University, The Second Clinical Medical College, Guangdong Medical University Dongguan 523808 China
| | - Jiwei Cai
- The First Dongguan Affiliated Hospital of Guangdong Medical University, The Second Clinical Medical College, Guangdong Medical University Dongguan 523808 China
| | - Miaohan Wei
- The First Dongguan Affiliated Hospital of Guangdong Medical University, The Second Clinical Medical College, Guangdong Medical University Dongguan 523808 China
| | - Juncheng Chen
- The First Dongguan Affiliated Hospital of Guangdong Medical University, The Second Clinical Medical College, Guangdong Medical University Dongguan 523808 China
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12
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Tang S, Liu Z, Xiang X. Graphene oxide composite hydrogels for wearable devices. CARBON LETTERS 2022; 32:1395-1410. [PMCID: PMC9467431 DOI: 10.1007/s42823-022-00402-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 09/03/2022] [Accepted: 09/05/2022] [Indexed: 06/01/2023]
Abstract
For graphene oxide (GO) composite hydrogels, a two-dimensional GO material is introduced into them, whose special structure is used to improve their properties. GO contains abundant oxygen-containing functional groups, which can improve the mechanical properties of hydrogels and support the application needs. Especially, the unique-conjugated structure of GO can endow or enhance the stimulation response of hydrogels. Therefore, GO composite hydrogels have a great potential in the field of wearable devices. We referred to the works published in recent years, and reviewed from these aspects: (a) structure of GO; (b) factors affecting the mechanical properties of the composite hydrogel, including hydrogen bond, ionic bond, coordination bond and physical crosslinking; (c) stimuli and signals; (d) challenges. Finally, we summarized the research progress of GO composite hydrogels in the field of wearable devices, and put forward some prospects.
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Affiliation(s)
- Senxuan Tang
- School of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing, 400074 People’s Republic of China
| | - Zhihan Liu
- School of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing, 400074 People’s Republic of China
| | - Xu Xiang
- School of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing, 400074 People’s Republic of China
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