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Su CY, Li D, Wang LJ, Wang Y. Eco-friendly electronic food labels: Development and application of Ion-SSPB double network hydrogel. J Colloid Interface Sci 2024; 671:154-164. [PMID: 38797141 DOI: 10.1016/j.jcis.2024.05.173] [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: 04/23/2024] [Revised: 05/18/2024] [Accepted: 05/22/2024] [Indexed: 05/29/2024]
Abstract
Although various conductive hydrogels have been developed for sensing, ideal materials for meeting the safety and toughness requirements of food detection are still lacking. This study introduces Ion-SSPB, a conductive hydrogel fabricated from eco-friendly, food-grade materials such as corn starch (CS), sodium alginate (SA), polyvinyl alcohol (PVA) and bentonite (BT). It leverages a green manufacturing approach designed for application in electronic food sensors. The hydrogel is achieved through a double network strategy and salt immersion method, which endows it with tunable mechanical and rheological properties. A key innovation of Ion-SSPB is the incorporation of bentonite, which enhances its performance, including low swelling, freezing resistance, and minimal residual adhesion. The hydrogel with 4% (w/v) BT concentration (Ion-SSPB4%) is an effective medium for detecting impedance changes in mangoes, correlating with their ripening stages. The Ion-SSPB hydrogel represents a significant advancement in the field of electronic food labels, combining environmental sustainability with technical efficacy.
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Affiliation(s)
- Chun-Yan Su
- College of Engineering, Beijing Advanced Innovation Center for Food Nutrition and Human Health, National Energy R & D Center for Non-food Biomass, China Agricultural University, P. O. Box 50 17 Qinghua Donglu Beijing, China
| | - Dong Li
- College of Engineering, Beijing Advanced Innovation Center for Food Nutrition and Human Health, National Energy R & D Center for Non-food Biomass, China Agricultural University, P. O. Box 50 17 Qinghua Donglu Beijing, China.
| | - Li-Jun Wang
- College of Food Science and Nutritional Engineering, Beijing Key Laboratory of Functional Food from Plant Resources, China Agricultural University, Beijing 100083, China.
| | - Yong Wang
- School of Chemical Engineering, University of New South Wales, Kensington, New South Wales, Australia
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2
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Jia S, Huang S, Jimo R, AXi Y, Lu Y, Kong Z, Ma J, Li H, Luo X, Qu Y, Gou K, Zeng R, Wang X. In-situ forming carboxymethyl chitosan hydrogel containing Paeonia suffruticosa Andr. leaf extract for mixed infectious vaginitis treatment by reshaping the micro-biota. Carbohydr Polym 2024; 339:122255. [PMID: 38823921 DOI: 10.1016/j.carbpol.2024.122255] [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: 01/12/2024] [Revised: 05/08/2024] [Accepted: 05/10/2024] [Indexed: 06/03/2024]
Abstract
Mixed infectious vaginitis poses a serious threat to female reproductive health due to complex pathogenic factors, a long course and easy recurrence. Currently, antibiotic-based treatment methods are facing a crisis of drug resistance and secondary dysbiosis. Exploring effective drugs for the treatment of mixed vaginitis from Paeonia suffruticosa Andr., a natural traditional Chinese medicine with a long history of medicinal use, is a feasible treatment strategy. P. suffruticosa Andr. leaf extract (PLE) has significant anti-bacterial effects due to its rich content of polyphenols and flavonoids. The polyphenols in peony leaves have the potential to make carboxymethyl chitosan form in situ gel. In the current study, PLE and carboxymethyl chitosan were combined to develop another type of natural anti-bacterial anti-oxidant hydrogel for the treatment of mixed infectious vaginitis. Through a series of characterisations, CP had a three-dimensional network porous structure with good mechanical properties, high water absorption, long retention and a slow-release drug effect. The mixed infectious vaginitis mouse model induced by a mixture of pathogenic bacteria was used to investigate the therapeutic effects of CP in vivo. The appearance of the vagina, H&E colouring of the tissue and inflammatory factors (TNF-α, IL-6) confirm the good anti-vaginal effect of CP. Therefore, CP was expected to become an ideal effective strategy to improve mixed infection vaginitis due to its excellent hydrogel performance and remarkable ability to regulate flora.
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Affiliation(s)
- Shiami Jia
- College of Pharmacy, Southwest Minzu University, Chengdu & Key Laboratory of Research and Application of Ethnic Medicine Processing and Preparation on the Qinghai Tibet Plateau, 610225, China
| | - Shengting Huang
- College of Pharmacy, Southwest Minzu University, Chengdu & Key Laboratory of Research and Application of Ethnic Medicine Processing and Preparation on the Qinghai Tibet Plateau, 610225, China
| | - Rezhemu Jimo
- College of Pharmacy, Southwest Minzu University, Chengdu & Key Laboratory of Research and Application of Ethnic Medicine Processing and Preparation on the Qinghai Tibet Plateau, 610225, China
| | - Yongbu AXi
- College of Pharmacy, Southwest Minzu University, Chengdu & Key Laboratory of Research and Application of Ethnic Medicine Processing and Preparation on the Qinghai Tibet Plateau, 610225, China
| | - Yuanhui Lu
- College of Pharmacy, Southwest Minzu University, Chengdu & Key Laboratory of Research and Application of Ethnic Medicine Processing and Preparation on the Qinghai Tibet Plateau, 610225, China
| | - Ziling Kong
- College of Pharmacy, Southwest Minzu University, Chengdu & Key Laboratory of Research and Application of Ethnic Medicine Processing and Preparation on the Qinghai Tibet Plateau, 610225, China
| | - Jun Ma
- College of Pharmacy, Southwest Minzu University, Chengdu & Key Laboratory of Research and Application of Ethnic Medicine Processing and Preparation on the Qinghai Tibet Plateau, 610225, China
| | - Heran Li
- School of Pharmacy, China Medical University, Puhe RD77, 110122, China
| | - Xiao Luo
- ChengDu Institute for Drug Control, NMPA Key Laboratory for Quality Monitoring and Evaluation of Traditional Chinese Medicine (Chinese Materia Medica), Chengdu 610000, China
| | - Yan Qu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China
| | - Kaijun Gou
- Tibetan Plateau Ethnic Medicinal Resources Protection and Utilization Key Laboratory of National Ethnic Affairs Commission of the People's Republic of China, Sichuan Provincial Qiang-Yi Medicinal Resources Protection and Utilization Technology Engineering Laboratory, Southwest Minzu University, Chengdu 610225, China
| | - Rui Zeng
- College of Pharmacy, Southwest Minzu University, Chengdu & Key Laboratory of Research and Application of Ethnic Medicine Processing and Preparation on the Qinghai Tibet Plateau, 610225, China; Tibetan Plateau Ethnic Medicinal Resources Protection and Utilization Key Laboratory of National Ethnic Affairs Commission of the People's Republic of China, Sichuan Provincial Qiang-Yi Medicinal Resources Protection and Utilization Technology Engineering Laboratory, Southwest Minzu University, Chengdu 610225, China.
| | - Xiao Wang
- College of Pharmacy, Southwest Minzu University, Chengdu & Key Laboratory of Research and Application of Ethnic Medicine Processing and Preparation on the Qinghai Tibet Plateau, 610225, China.
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3
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Lu Y, Wang Y, Wang J, Liang L, Li J, Yu Y, Zeng J, He M, Wei X, Liu Z, Shi P, Li J. A comprehensive exploration of hydrogel applications in multi-stage skin wound healing. Biomater Sci 2024. [PMID: 38959069 DOI: 10.1039/d4bm00394b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
Hydrogels, as an emerging biomaterial, have found extensive use in the healing of wounds due to their distinctive physicochemical structure and functional properties. Moreover, hydrogels can be made to match a range of therapeutic requirements for materials used in wound healing through specific functional modifications. This review provides a step-by-step explanation of the processes involved in cutaneous wound healing, including hemostasis, inflammation, proliferation, and reconstitution, along with an investigation of the factors that impact these processes. Furthermore, a thorough analysis is conducted on the various stages of the wound healing process at which functional hydrogels are implemented, including hemostasis, anti-infection measures, encouraging regeneration, scar reduction, and wound monitoring. Next, the latest progress of multifunctional hydrogels for wound healing and the methods to achieve these functions are discussed in depth and categorized for elucidation. Finally, perspectives and challenges associated with the clinical applications of multifunctional hydrogels are discussed.
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Affiliation(s)
- Yongping Lu
- Guangyuan Central Hospital, Guangyuan 628000, P. R. China.
| | - Yuemin Wang
- College of Medicine, Southwest Jiaotong University, 610003, China
| | - Jie Wang
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, P. R. China
| | - Ling Liang
- Guangyuan Central Hospital, Guangyuan 628000, P. R. China.
| | - Jinrong Li
- Guangyuan Central Hospital, Guangyuan 628000, P. R. China.
| | - Yue Yu
- Guangyuan Central Hospital, Guangyuan 628000, P. R. China.
| | - Jia Zeng
- Guangyuan Central Hospital, Guangyuan 628000, P. R. China.
| | - Mingfang He
- Guangyuan Central Hospital, Guangyuan 628000, P. R. China.
| | - Xipeng Wei
- Guangyuan Central Hospital, Guangyuan 628000, P. R. China.
| | - Zhining Liu
- Guangyuan Central Hospital, Guangyuan 628000, P. R. China.
| | - Ping Shi
- Guangyuan Central Hospital, Guangyuan 628000, P. R. China.
| | - Jianshu Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
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4
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Kalulu M, Chilikwazi B, Hu J, Fu G. Soft Actuators and Actuation: Design, Synthesis, and Applications. Macromol Rapid Commun 2024:e2400282. [PMID: 38850266 DOI: 10.1002/marc.202400282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 05/31/2024] [Indexed: 06/10/2024]
Abstract
Soft actuators are one of the most promising technological advancements with potential solutions to diverse fields' day-to-day challenges. Soft actuators derived from hydrogel materials possess unique features such as flexibility, responsiveness to stimuli, and intricate deformations, making them ideal for soft robotics, artificial muscles, and biomedical applications. This review provides an overview of material composition and design techniques for hydrogel actuators, exploring 3D printing, photopolymerization, cross-linking, and microfabrication methods for improved actuation. It examines applications of hydrogel actuators in biomedical, soft robotics, bioinspired systems, microfluidics, lab-on-a-chip devices, and environmental, and energy systems. Finally, it discusses challenges, opportunities, advancements, and regulatory aspects related to hydrogel actuators.
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Affiliation(s)
- Mulenga Kalulu
- School of Chemistry and Chemical Engineering, Southeast University, Jiangning, Nanjing, Jiangsu Province, 211189, P. R. China
- Department of Chemistry, School of Natural Sciences, The University of Zambia, Lusaka, 10101, Zambia
| | - Bright Chilikwazi
- Department of Chemistry, School of Natural Sciences, The University of Zambia, Lusaka, 10101, Zambia
| | - Jun Hu
- School of Chemistry and Chemical Engineering, Southeast University, Jiangning, Nanjing, Jiangsu Province, 211189, P. R. China
| | - Guodong Fu
- School of Chemistry and Chemical Engineering, Southeast University, Jiangning, Nanjing, Jiangsu Province, 211189, P. R. China
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5
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Zhao X, Yang K, Song B, Qiu H, Zhao J, Liu H, Lin Z, Han L, Zhang R. Amphiphilic nanofibrillated cellulose/polyurethane composites with antibacterial, antifouling and self-healing properties for potential catheter applications. Int J Biol Macromol 2024; 263:130407. [PMID: 38417747 DOI: 10.1016/j.ijbiomac.2024.130407] [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: 09/19/2023] [Revised: 02/20/2024] [Accepted: 02/21/2024] [Indexed: 03/01/2024]
Abstract
This study focuses on enhancing interventional medical devices, specifically catheters, using a novel composite material. Challenges like corrosion and contamination in vivo, often caused by body fluids' pH, bacteria, and proteins, lead to mechanical damage, bacterial colonization, and biofilm formation on devices like catheters. The objective of this study was to prepare a versatile composite (HFs) by designing polyurethanes (HPU) with an ionic chain extender (HIID) and blending them with amphiphilic nanofibrillated cellulose (Am-CNF). The composite leverages dynamic interactions such as hydrogen bonding and electrostatic forces, as evidenced by Molecular Mechanics (MM) calculations. The H4F0.75 composite exhibited exceptional properties: 99 % length recovery post 600 stretching cycles at 100 % strain, rapid self-healing in artificial urine, high bactericidal activity, and excellent cell viability. Moreover, mechanical aging tests and UV-vis spectral analysis confirmed the material's durability and safety. These findings suggest that the HFs composite holds significant promise for improving catheters' performance in medical applications.
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Affiliation(s)
- Xin Zhao
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China; Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315300, China
| | - Kai Yang
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315300, China
| | - Baiyang Song
- Department of Urology, The First Affiliated Hospital of Ningbo University, 59 Liuting Road, Ningbo 315010, Zhejiang, China.
| | - Haofeng Qiu
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315300, China
| | - Jiake Zhao
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315300, China
| | - Hongzhi Liu
- School of Materials Science and Engineering, NingboTech University, Ningbo 315100, Zhejiang Province, China
| | - Zhihao Lin
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315300, China
| | - Lijing Han
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315300, China.
| | - Ruoyu Zhang
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315300, China.
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6
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Liao H, Su J, Han J, Xiao T, Sun X, Cui G, Duan X, Shi P. An Intrinsic Self-Healable, Anti-Freezable and Ionically Conductive Hydrogel for Soft Ionotronics Induced by Imidazolyl Cross-Linker Molecules Anchored with Dynamic Disulfide Bonds. Macromol Rapid Commun 2024; 45:e2300613. [PMID: 38157222 DOI: 10.1002/marc.202300613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/13/2023] [Indexed: 01/03/2024]
Abstract
Hydrogels are ideal materials for flexible electronic devices based on their smooth ion channels and considerable mechanical flexibility. A substantial volume of aqueous solution is required to enable the smooth flow of ions, resulting in the agony of low-temperature freezing; besides, long-term exposure to bending/tensile tress triggers fatigue issues. Therefore, it is a great challenge to prepare hydrogels with both freeze-resistance and long-term durability. Herein, a polyacrylic acid-based hydrogel with both hydrophobic interaction and dynamic reversible covalent bonding cross-linking networks is preparing (DC-hydrogel) by polymerizing a bi-functional imidazole-type ionic liquid monomer with integrated disulfide and alkene bonds (DS/DB-IL) and an octadecyl methacrylate, achieving self-healing. The DS/DB-IL anchored into the polymer backbone has a high affinity with water, reducing the freezing point of water, while the DS/DB-IL with free ions provides superior ionic conductivity to the DC-hydrogel. The polyacrylic acid with abundant carboxyl gives hydrogel good self-adhesiveness to different substrates. Ionotronics with resistance-type sensors with stable output performance are fabricated and explored its application to joint motion and health information. Moreover, hydrogel-based sensing arrays with high resolution and accuracy are fabricated to identify 2D distribution of stress. The hydrogels have great promise for various ionotronics in many fields.
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Affiliation(s)
- Haiyang Liao
- School of Mechanical Engineering, Hunan University of Technology, Zhuzhou, Hunan, 412007, China
- China Textile Academy (Zhejiang) Technology Research Institute Co., Ltd, Shaoxing, Zhejiang, 312071, China
| | - Jiayi Su
- School of Mechanical Engineering, Hunan University of Technology, Zhuzhou, Hunan, 412007, China
| | - Jieling Han
- School of Mechanical Engineering, Hunan University of Technology, Zhuzhou, Hunan, 412007, China
| | - Tieming Xiao
- School of Mechanical Engineering, Hunan University of Technology, Zhuzhou, Hunan, 412007, China
| | - Xiao Sun
- School of Mechanical Engineering, Hunan University of Technology, Zhuzhou, Hunan, 412007, China
| | - Guixin Cui
- China Textile Academy (Zhejiang) Technology Research Institute Co., Ltd, Shaoxing, Zhejiang, 312071, China
| | - Xiaofei Duan
- School of Mechanical Engineering, Hunan University of Technology, Zhuzhou, Hunan, 412007, China
| | - Pu Shi
- School of Mechanical Engineering, Hunan University of Technology, Zhuzhou, Hunan, 412007, China
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7
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Sun S, Yuan R, Ling S, Zhou T, Wu Z, Fu M, He H, Li X, Zhang C. Self-Healable, Self-Adhesive and Degradable MXene-Based Multifunctional Hydrogel for Flexible Epidermal Sensors. ACS APPLIED MATERIALS & INTERFACES 2024; 16:7826-7837. [PMID: 38301169 DOI: 10.1021/acsami.3c17605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Conductive hydrogels have garnered significant interest in the realm of wearable flexible sensors due to their close resemblance to human tissue, wearability, and precise signal acquisition capabilities. However, the concurrent attainment of an epidermal hydrogel sensor incorporating reliable self-healing capabilities, biodegradability, robust adhesiveness, and the ability to precisely capture subtle electrophysiological signals poses a daunting and intricate challenge. Herein, an innovative MXene-based composite hydrogel (PBM hydrogel) with exceptional self-healing, self-adhesive, and versatile functionality is engineered through the integration of conductive MXene nanosheets into a well-structured poly(vinyl alcohol) (PVA) and bacterial cellulose (BC) hydrogel three-dimensional (3D) network, utilizing multiple dynamic cross-linking synergistic repeated freeze-thaw strategy. The hydrogel harnesses the presence of dynamically reversible borax ester bonds and multiple hydrogen bonds between its constituents, endowing it with rapid self-healing efficiency (97.8%) and formidable self-adhesive capability. The assembled PBM hydrogel epidermal sensor possesses a rapid response time (10 ms) and exhibits versatility in detecting diverse external stimuli and human movements such as vocalization, handwriting, joint motion, Morse code signals, and even monitoring infusion status. Additionally, the PBM hydrogel sensor offers the added advantage of swift degradation in phosphate-buffered saline solution (within a span of 56 days) and H2O2 solution (in just 53 min), maintaining an eco-friendly profile devoid of any environmental pollution. This work lays the groundwork for possible uses in electronic skins, interactions between humans and machines, and the monitoring of individualized healthcare.
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Affiliation(s)
- Shuxian Sun
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, P. R. China
| | - Ruoxin Yuan
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, P. R. China
| | - Shangwen Ling
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, P. R. China
| | - Tiantian Zhou
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, P. R. China
| | - Ziqin Wu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, P. R. China
| | - Mengyuan Fu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, P. R. China
| | - Hanna He
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, P. R. China
| | - Xiaolong Li
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, P. R. China
| | - Chuhong Zhang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, P. R. China
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Song Y, Xing L, Zou X, Zhang C, Huang Z, Liu W, Wang J. A chitosan-based conductive double network hydrogel doped by tannic acid-reduced graphene oxide with excellent stretchability and high sensitivity for wearable strain sensors. Int J Biol Macromol 2024; 258:128861. [PMID: 38114012 DOI: 10.1016/j.ijbiomac.2023.128861] [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: 10/02/2023] [Revised: 11/29/2023] [Accepted: 12/15/2023] [Indexed: 12/21/2023]
Abstract
Conductive hydrogels usually suffer from weak mechanical properties and are easily destroyed, resulting in limited applications in flexible electronics. Concurrently, adding conductive additives to the hydrogel solution increases the probability of agglomeration and uneven dispersion issues. In this study, the biocompatible natural polymer chitosan was used as the network substrate. The rigid network employed was the Cit3-ion crosslinked chitosan (CS) network, and the MBA chemically crosslinked polyacrylamide (PAM) network was used as the flexible network. Tannic acid-reduced graphene oxide (TA-rGO), which has excellent conductivity and dispersibility, is used as a conductive filler. Thus, a CS/TA-rGO/PAM double network conductive hydrogel with excellent performance, high toughness, high conductivity, and superior sensing sensitivity was prepared. The prepared CS/TA-rGO/PAM double network conductive hydrogels have strong tensile properties (strain and toughness as high as 2009 % and 1045 kJ/cm3), excellent sensing sensitivity (GF value was 4.01), a wider strain detection range, high cycling stability and durability, good biocompatibility, and antimicrobial properties. The hydrogel can be assembled into flexible wearable devices that can not only dynamically detect human movements, such as joint bending, facial expression changes, swallowing, and saying, but also recognize handwriting and enable human-computer interaction.
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Affiliation(s)
- Yaoting Song
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200030, People's Republic of China
| | - Lu Xing
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200030, People's Republic of China
| | - Xinquan Zou
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200030, People's Republic of China
| | - Chenyan Zhang
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200030, People's Republic of China
| | - Zhonghuang Huang
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200030, People's Republic of China
| | - Wenxiu Liu
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200030, People's Republic of China
| | - Jikui Wang
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200030, People's Republic of China.
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9
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Bari GAKMR, Jeong JH. Comprehensive Insights and Advancements in Gel Catalysts for Electrochemical Energy Conversion. Gels 2024; 10:63. [PMID: 38247786 PMCID: PMC10815738 DOI: 10.3390/gels10010063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 01/09/2024] [Accepted: 01/12/2024] [Indexed: 01/23/2024] Open
Abstract
Continuous worldwide demands for more clean energy urge researchers and engineers to seek various energy applications, including electrocatalytic processes. Traditional energy-active materials, when combined with conducting materials and non-active polymeric materials, inadvertently leading to reduced interaction between their active and conducting components. This results in a drop in active catalytic sites, sluggish kinetics, and compromised mass and electronic transport properties. Furthermore, interaction between these materials could increase degradation products, impeding the efficiency of the catalytic process. Gels appears to be promising candidates to solve these challenges due to their larger specific surface area, three-dimensional hierarchical accommodative porous frameworks for active particles, self-catalytic properties, tunable electronic and electrochemical properties, as well as their inherent stability and cost-effectiveness. This review delves into the strategic design of catalytic gel materials, focusing on their potential in advanced energy conversion and storage technologies. Specific attention is given to catalytic gel material design strategies, exploring fundamental catalytic approaches for energy conversion processes such as the CO2 reduction reaction (CO2RR), oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and more. This comprehensive review not only addresses current developments but also outlines future research strategies and challenges in the field. Moreover, it provides guidance on overcoming these challenges, ensuring a holistic understanding of catalytic gel materials and their role in advancing energy conversion and storage technologies.
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Affiliation(s)
- Gazi A. K. M. Rafiqul Bari
- School of Mechanical Smart and Industrial Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Gyeonggi-do, Republic of Korea
| | - Jae-Ho Jeong
- School of Mechanical Smart and Industrial Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Gyeonggi-do, Republic of Korea
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10
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He S, Liu Z, Wu X, Liu J, Fang H, Shao W. Novel flexible hydrogels based on carboxymethyl guar gum and polyacrylic acid for ultra-highly sensitive and reliable strain and pressure sensors. Carbohydr Polym 2024; 324:121515. [PMID: 37985099 DOI: 10.1016/j.carbpol.2023.121515] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 10/15/2023] [Accepted: 10/17/2023] [Indexed: 11/22/2023]
Abstract
To realize on stable and real-time monitoring of human activities, novel hydrogels using polyacrylic acid (PAA) and carboxymethyl guar gum (CMGG) were fabricated as wearable and flexible strain or pressure sensors in the presence of lignosulfonate (LS) and Al3+. Based on the co-existence of metal coordination bonds, hydrogen bonds and ionic interaction in this system, the obtained hydrogels exhibited desirable mechanical properties with good self-recovery ability. The hydrogels displayed good self-adhesion behavior and an ultra-high tensile sensitivity (gauge factor (GF) = 24.30), therefore, they could precisely detect human joints movements such as elbow, wrist, and finger bending as well as tiny movements and external stimuli such as swallowing, smile, frown, pulse, speaking, writing, and even the falling of different liquid drops. Additionally, the hydrogels showed excellent self-healing ability with the healing efficiency as high as 100 % after 30 h. Most importantly, the healed hydrogel could perform the same sensing performance as before. Based on these distinguished characteristics, this hydrogel represents great potentials in wearable and flexible sensors for long-term and stable health monitoring application.
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Affiliation(s)
- Shu He
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Zeng Liu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xing Wu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jia Liu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Hongli Fang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Wei Shao
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
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Wang Y, Song L, Wang Q, Wang L, Li S, Du H, Wang C, Wang Y, Xue P, Nie WC, Wang X, Tang S. Multifunctional acetylated distarch phosphate based conducting hydrogel with high stretchability, ultralow hysteresis and fast response for wearable strain sensors. Carbohydr Polym 2023; 318:121106. [PMID: 37479435 DOI: 10.1016/j.carbpol.2023.121106] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/23/2023] [Accepted: 06/08/2023] [Indexed: 07/23/2023]
Abstract
The rapid development of flexible sensors has greatly increased the demand for high-performance hydrogels. However, it remains a challenge to fabricate flexible hydrogel sensors with high stretching, low hysteresis, excellent adhesion, good conductivity, sensing characteristics and bacteriostatic function in a simple way. Herein, a highly conducting double network hydrogel is presented by incorporating lithium chloride (LiCl) into the hydrogel consisting of poly (2-acrylamide-2-methylpropanesulfonic acid/acrylamide/acrylic acid) (3A) network and acetylated distarch phosphate (ADSP). The addition of ADSP not only formed hydrogen bonds with 3A to improve the toughness of the hydrogel but also plays the role of "physical cross-linking" in 3A by "anchoring" the polymer molecular chains together. Tuning the composition of the hydrogel allows the attainment of the best functions, such as high stretchability (∼770 %), ultralow hysteresis (2.2 %, ε = 100 %), excellent electrical conductivity (2.9 S/m), strain sensitivity (GF = 3.0 at 200-500 % strain) and fast response (96 ms). Based on the above performance, the 3A/ADSP/LiCl hydrogel strain sensor can repeatedly and stably detect and monitor large-scale human movements and subtle sensing signals. In addition, the 3A/ADSP/LiCl hydrogel shows a good biocompatibility and bacteriostatic ability. This work provides an effective strategy for constructing the conductive hydrogels for wearable devices and flexible sensors.
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Affiliation(s)
- Yingjie Wang
- School of Pharmacy, Weifang Medical University, No. 7166, Baotong West Road, Weifang, Shandong 261053, PR China
| | - Linmeng Song
- School of Public Health, Weifang Medical University, No. 7166, Baotong West Road, Weifang, Shandong 261053, PR China
| | - Qi Wang
- School of Pharmacy, Weifang Medical University, No. 7166, Baotong West Road, Weifang, Shandong 261053, PR China
| | - Lu Wang
- School of Pharmacy, Weifang Medical University, No. 7166, Baotong West Road, Weifang, Shandong 261053, PR China
| | - Shiya Li
- School of Pharmacy, Weifang Medical University, No. 7166, Baotong West Road, Weifang, Shandong 261053, PR China
| | - HongChao Du
- School of Pharmacy, Weifang Medical University, No. 7166, Baotong West Road, Weifang, Shandong 261053, PR China
| | - Chenchen Wang
- School of Pharmacy, Weifang Medical University, No. 7166, Baotong West Road, Weifang, Shandong 261053, PR China
| | - Yifan Wang
- School of Pharmacy, Weifang Medical University, No. 7166, Baotong West Road, Weifang, Shandong 261053, PR China
| | - Peng Xue
- School of Public Health, Weifang Medical University, No. 7166, Baotong West Road, Weifang, Shandong 261053, PR China
| | - Wu-Cheng Nie
- Sichuan Jinjiang Building Materials Technology Co. Ltd, Deyang, Sichuan 618304, PR China
| | - Xuedong Wang
- School of Pharmacy, Weifang Medical University, No. 7166, Baotong West Road, Weifang, Shandong 261053, PR China
| | - Shaojian Tang
- School of Pharmacy, Weifang Medical University, No. 7166, Baotong West Road, Weifang, Shandong 261053, PR China.
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Li W, Wu S, Li S, Zhong X, Zhang X, Qiao H, Kang M, Chen J, Wang P, Tao LQ. Gesture Recognition System Using Reduced Graphene Oxide-Enhanced Hydrogel Strain Sensors for Rehabilitation Training. ACS APPLIED MATERIALS & INTERFACES 2023; 15:45106-45115. [PMID: 37699573 DOI: 10.1021/acsami.3c08709] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
Gesture recognition systems epitomize a modern and intelligent approach to rehabilitative training, finding utility in assisted driving, sign language comprehension, and machine control. However, wearable devices that can monitor and motivate physically rehabilitated people in real time remain little studied. Here, we present an innovative gesture recognition system that integrates hydrogel strain sensors with machine learning to facilitate finger rehabilitation training. PSTG (PAM/SA/TG) hydrogels are constructed by thermal polymerization of acrylamide (AM), sodium alginate (SA), and tannic acid-reduced graphene oxide (TA-rGO, TG), with AM polymerizing into polyacrylamide (PAM). The surface of TG has abundant functional groups that can establish multiple hydrogen bonds with PAM and SA chains to endow the hydrogel with high stretchability and mechanical stability. Our strain sensor boasts impressive sensitivity (Gauge factor = 6.13), a fast response time (40.5 ms), and high linearity (R2 = 0.999), making it an effective tool for monitoring human joint movements and pronunciation. Leveraging machine learning techniques, our gesture recognition system accurately discerns nine distinct types of gestures with a recognition accuracy of 100%. Our research drives wearable advancements, elevating the landscape of patient rehabilitation and augmenting gesture recognition systems' healthcare applications.
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Affiliation(s)
- Wen Li
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Shunxin Wu
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Simou Li
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Xiyang Zhong
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Xiaobo Zhang
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Hao Qiao
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Meicun Kang
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Jinghan Chen
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Ping Wang
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Lu-Qi Tao
- Beijing Engineering Research Center of Industrial Spectrum Imaging, School of Automation and Electrical Engineering, University of Science and Technology Beijing, Beijing 100083, China
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13
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Giansanti D. Synergizing Intelligence and Building a Smarter Future: Artificial Intelligence Meets Bioengineering. Bioengineering (Basel) 2023; 10:691. [PMID: 37370622 DOI: 10.3390/bioengineering10060691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 06/01/2023] [Indexed: 06/29/2023] Open
Abstract
Smart Engineering (SE) describes the methods, processes, and IT tools for the interdisciplinary, system-oriented development of innovative, intelligent, networked products, production plants, and infrastructures [...].
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