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Lee JH, Hyun JE, Kim J, Yang J, Zhang H, Ahn H, Lee S, Kim JH, Lim T. A highly conductive, robust, self-healable, and thermally responsive liquid metal-based hydrogel for reversible electrical switches. J Mater Chem B 2024; 12:5238-5247. [PMID: 38699788 DOI: 10.1039/d4tb00209a] [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: 05/05/2024]
Abstract
This study introduces a thermally responsive smart hydrogel with enhanced electrical properties achieved through volume switching. This advancement was realized by incorporating multiscale liquid metal particles (LMPs) into the PNIPAM hydrogel during polymerization, using their inherent elasticity and conductivity when deswelled. Unlike traditional conductive additives, LMPs endow the PNIPAM hydrogel with a remarkably consistent volume switching ratio, significantly enhancing electrical switching. This is attributed to the minimal nucleation effect of LMPs during polymerization and their liquid-like behavior, like vacancies in the polymeric hydrogel under compression. The PNIPAM/LMP hydrogel exhibits the highest electrical switching, with an unprecedented switch of 6.1 orders of magnitude. Even after repeated swelling/deswelling cycles that merge some LMPs and increase the conductivity when swelled, the hydrogel consistently maintains an electrical switch exceeding 4.5 orders of magnitude, which is still the highest record to date. Comprehensive measurements reveal that the hydrogel possesses robust mechanical properties, a tissue-like compression modulus, biocompatibility, and self-healing capabilities. These features make the PNIPAM/LMP hydrogel an ideal candidate for long-term implantable bioelectronics, offering a solution to the mechanical mismatch with dynamic human tissues.
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Affiliation(s)
- Joo Hyung Lee
- The Research Institute of Industrial Science, Hanyang University, Seoul 04763, South Korea
| | - Ji Eun Hyun
- Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, South Korea
| | - Jongbeom Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, South Korea
| | - Jungin Yang
- Division of Chemical Engineering and Bioengineering, Kangwon National University, Chuncheon, Gangwon-do 24341, South Korea.
| | - Huanan Zhang
- Department of Chemical Engineering, University of Utah, Salt Lake City, Utah 84112, USA
| | - Hyunchul Ahn
- Department of Fiber System Engineering, Yeungnam University, Gyeongsan, Gyeongsangbuk-do 38541, South Korea.
| | - Sohee Lee
- Department of Clothing and Textiles, Gyeongsang National University, Jinju, Gyeongsangnam-do 52828, South Korea.
| | - Jung Han Kim
- Department of Materials Science and Engineering, Dong-A University, Busan 49315, South Korea.
| | - Taehwan Lim
- Division of Chemical Engineering and Bioengineering, Kangwon National University, Chuncheon, Gangwon-do 24341, South Korea.
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Hu Y, Yu L, Dai Q, Hu X, Shen Y. Multifunctional antibacterial hydrogels for chronic wound management. Biomater Sci 2024; 12:2460-2479. [PMID: 38578143 DOI: 10.1039/d4bm00155a] [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: 04/06/2024]
Abstract
Chronic wounds have gradually evolved into a global health challenge, comprising long-term non-healing wounds, local tissue necrosis, and even amputation in severe cases. Accordingly, chronic wounds place a considerable psychological and economic burden on patients and society. Chronic wounds have multifaceted pathogenesis involving excessive inflammation, insufficient angiogenesis, and elevated reactive oxygen species levels, with bacterial infection playing a crucial role. Hydrogels, renowned for their excellent biocompatibility, moisture retention, swelling properties, and oxygen permeability, have emerged as promising wound repair dressings. However, hydrogels with singular functions fall short of addressing the complex requirements associated with chronic wound healing. Hence, current research emphasises the development of multifunctional antibacterial hydrogels. This article reviews chronic wound characteristics and the properties and classification of antibacterial hydrogels, as well as their potential application in chronic wound management.
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Affiliation(s)
- Yungang Hu
- Department of Burns Surgery, Beijing Jishuitan Hospital, Capital Medical University, Beijing, 100035, China.
- Clinical Center for Wounds, Capital Medical University, Beijing, 100035, China
| | - Lu Yu
- Department of Burns Surgery, Beijing Jishuitan Hospital, Capital Medical University, Beijing, 100035, China.
- Clinical Center for Wounds, Capital Medical University, Beijing, 100035, China
| | - Qiang Dai
- Department of Burns Surgery, Beijing Jishuitan Hospital, Capital Medical University, Beijing, 100035, China.
- Clinical Center for Wounds, Capital Medical University, Beijing, 100035, China
| | - Xiaohua Hu
- Department of Burns Surgery, Beijing Jishuitan Hospital, Capital Medical University, Beijing, 100035, China.
- Clinical Center for Wounds, Capital Medical University, Beijing, 100035, China
| | - Yuming Shen
- Department of Burns Surgery, Beijing Jishuitan Hospital, Capital Medical University, Beijing, 100035, China.
- Clinical Center for Wounds, Capital Medical University, Beijing, 100035, China
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Belov E, Nadaraia K, Imshinetskiy I, Mashtalyar D, Ignatieva L, Marchenko Y, Osmushko I, Gerasimenko M, Sinebruykhov S, Gnedenkov S. Polymer System Based on Polyethylene Glycol and TFE Telomers for Producing Films with Switchable Wettability. Int J Mol Sci 2024; 25:4904. [PMID: 38732121 PMCID: PMC11084564 DOI: 10.3390/ijms25094904] [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: 03/29/2024] [Revised: 04/25/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024] Open
Abstract
Today a lot of attention is paid to the formation of thermosensitive systems for biomedical and industrial applications. The development of new methods for synthesis of such systems is a dynamically developing direction in chemistry and materials science. In this regard, this paper presents results of the studies of a new synthesized supramolecular polymer system based on polyethylene glycol and tetrafluoroethylene telomers. The films formed from the polymer substance have the property of switching wettability depending on temperature after heating activation. It has been established that the wettability changes at 60 °C. The contact angle of activated hydrophobic polymer film reaches 143°. Additionally, the system exhibits its properties regardless of the pH of the environment. Based on data obtained by the methods of infrared and x-ray photoelectron spectroscopy, differential thermal analysis and thermal analysis in conjunction with wettability and morphology, a model of the behavior of molecules in a polymer system was built that ensures switching of the hydrophilic/hydrophobic surface state. The resulting polymer system, as well as films based on it, can be used in targeted drug delivery, implantation surgery, as sensors, etc.
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Affiliation(s)
- Evgeniy Belov
- Institute of Chemistry Far Eastern Branch Russian Academy of Sciences, 690022 Vladivostok, Russia; (E.B.); (K.N.); (I.I.); (L.I.); (Y.M.); (I.O.); (M.G.); (S.S.); (S.G.)
| | - Konstantine Nadaraia
- Institute of Chemistry Far Eastern Branch Russian Academy of Sciences, 690022 Vladivostok, Russia; (E.B.); (K.N.); (I.I.); (L.I.); (Y.M.); (I.O.); (M.G.); (S.S.); (S.G.)
| | - Igor Imshinetskiy
- Institute of Chemistry Far Eastern Branch Russian Academy of Sciences, 690022 Vladivostok, Russia; (E.B.); (K.N.); (I.I.); (L.I.); (Y.M.); (I.O.); (M.G.); (S.S.); (S.G.)
| | - Dmitry Mashtalyar
- Institute of Chemistry Far Eastern Branch Russian Academy of Sciences, 690022 Vladivostok, Russia; (E.B.); (K.N.); (I.I.); (L.I.); (Y.M.); (I.O.); (M.G.); (S.S.); (S.G.)
| | - Lidia Ignatieva
- Institute of Chemistry Far Eastern Branch Russian Academy of Sciences, 690022 Vladivostok, Russia; (E.B.); (K.N.); (I.I.); (L.I.); (Y.M.); (I.O.); (M.G.); (S.S.); (S.G.)
| | - Yurii Marchenko
- Institute of Chemistry Far Eastern Branch Russian Academy of Sciences, 690022 Vladivostok, Russia; (E.B.); (K.N.); (I.I.); (L.I.); (Y.M.); (I.O.); (M.G.); (S.S.); (S.G.)
| | - Ivan Osmushko
- Institute of Chemistry Far Eastern Branch Russian Academy of Sciences, 690022 Vladivostok, Russia; (E.B.); (K.N.); (I.I.); (L.I.); (Y.M.); (I.O.); (M.G.); (S.S.); (S.G.)
| | - Maria Gerasimenko
- Institute of Chemistry Far Eastern Branch Russian Academy of Sciences, 690022 Vladivostok, Russia; (E.B.); (K.N.); (I.I.); (L.I.); (Y.M.); (I.O.); (M.G.); (S.S.); (S.G.)
- Department of Nuclear Technologies, Far Eastern Federal University, 690922 Vladivostok, Russia
| | - Sergey Sinebruykhov
- Institute of Chemistry Far Eastern Branch Russian Academy of Sciences, 690022 Vladivostok, Russia; (E.B.); (K.N.); (I.I.); (L.I.); (Y.M.); (I.O.); (M.G.); (S.S.); (S.G.)
| | - Sergey Gnedenkov
- Institute of Chemistry Far Eastern Branch Russian Academy of Sciences, 690022 Vladivostok, Russia; (E.B.); (K.N.); (I.I.); (L.I.); (Y.M.); (I.O.); (M.G.); (S.S.); (S.G.)
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Peng B, Du L, Zhang T, Chen J, Xu B. Research progress in decellularized extracellular matrix hydrogels for intervertebral disc degeneration. Biomater Sci 2023; 11:1981-1993. [PMID: 36734099 DOI: 10.1039/d2bm01862d] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
As one of the most common clinical disorders, low back pain (LBP) influences patient quality of life and causes substantial social and economic burdens. Many factors can result in LBP, the most common of which is intervertebral disc degeneration (IDD). The progression of IDD cannot be alleviated by conservative or surgical treatments, and gene therapy, growth factor therapy, and cell therapy have their own limitations. Recently, research on the use of hydrogel biomaterials for the treatment of IDD has garnered great interest, and satisfactory treatment results have been achieved. This article describes the classification of hydrogels, the methods of decellularized extracellular matrix (dECM) production and the various types of gel formation. The current research on dECM hydrogels for the treatment of IDD is described in detail in this article. First, an overview of the material sources, decellularization methods, and gel formation methods is given. The focus is on research performed over the last three years, which mainly consists of bovine and porcine NP tissues, while for decellularization methods, combinations of several approaches are primarily used. dECM hydrogels have significantly improved mechanical properties after the polymers are cross-linked. The main effects of these gels include induction of stem cell differentiation to intervertebral disc (IVD) cells, good mechanical properties to restore IVD height after polymer cross-linking, and slow release of exosomes. Finally, the challenges and problems still faced by dECM hydrogels for the treatment of IDD are summarised, and potential solutions are proposed. This paper is the first to summarise the research on dECM hydrogels for the treatment of IDD and aims to provide a theoretical reference for subsequent studies.
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Affiliation(s)
- Bing Peng
- Tianjin University of Traditional Chinese Medicine, No.10, Poyang Lake Road, Jinghai District, Tianjin, 301617, China
| | - Lilong Du
- Tianjin Hospital, Tianjin, No.406, Jiefang South Road, Hexi District, Tianjin, 301617, China.
| | - Tongxing Zhang
- Tianjin Hospital, Tianjin, No.406, Jiefang South Road, Hexi District, Tianjin, 301617, China.
| | - Jiangping Chen
- Liuyang Hospital of Traditional Chinese Medicine, Beizhengzhong Road, Hunan, 410399, China.
| | - Baoshan Xu
- Tianjin Hospital, Tianjin, No.406, Jiefang South Road, Hexi District, Tianjin, 301617, China.
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Fang T, Liu H, Luo X, Gong N, Sun M, Peng W, Li Y, Zhang F, Fan X. Accommodation of Two-Dimensional SiO x in a Point-to-Plane Conductive Network Composed of Graphene and Nitrogen-Doped Carbon for Robust Lithium Storage. ACS APPLIED MATERIALS & INTERFACES 2022; 14:53658-53666. [PMID: 36400752 DOI: 10.1021/acsami.2c13824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Silicon oxides (SiOx) are one of the most promising anode materials for next-generation lithium-ion batteries owing to their abundant reserve and low lost and high reversible capacity. However, the practical application of SiOx is still hindered by their intrinsically low conductivity and huge volume change. In this regard, we design a novel anode material in which sheet-like SiOx nanosheets are encapsulated in a unique point-to-plane conductive network composed of graphene flakes and nitrogen-doped carbon spheres. This unique composite structure demonstrates high specific capacity (867.7 mAh g-1 at 0.1 A g-1), superior rate performance, and stable cycle life. The electrode delivers a superior reversible discharge capacity of 595.8 mAh g-1 after 200 cycles at 1.0 A g-1 and 287.5 mAh g-1 after 500 cycles at 5.0 A g-1. This work may shed light on the rational design of SiOx-based anode materials for next-generation high-performance lithium-ion batteries.
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Affiliation(s)
- Tiantian Fang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin300072, China
| | - Huibin Liu
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin300072, China
| | - Xinyu Luo
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin300072, China
| | - Ning Gong
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin300072, China
| | - Mengru Sun
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin300072, China
| | - WenChao Peng
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin300072, China
| | - Yang Li
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin300072, China
| | - Fengbao Zhang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin300072, China
| | - Xiaobin Fan
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin300192, China
- Institute of Shaoxing, Tianjin University, Zhejiang312300, China
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