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Zhang Y, Pan Y, Chang R, Chen K, Wang K, Tan H, Yin M, Liu C, Qu X. Advancing homogeneous networking principles for the development of fatigue-resistant, low-swelling and sprayable hydrogels for sealing wet, dynamic and concealed wounds in vivo. Bioact Mater 2024; 34:150-163. [PMID: 38225944 PMCID: PMC10788230 DOI: 10.1016/j.bioactmat.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/14/2023] [Accepted: 12/01/2023] [Indexed: 01/17/2024] Open
Abstract
Effective sealing of wet, dynamic and concealed wounds remains a formidable challenge in clinical practice. Sprayable hydrogel sealants are promising due to their ability to cover a wide area rapidly, but they face limitations in dynamic and moist environments. To address this issue, we have employed the principle of a homogeneous network to design a sprayable hydrogel sealant with enhanced fatigue resistance and reduced swelling. This network is formed by combining the spherical structure of lysozyme (LZM) with the orthotetrahedral structure of 4-arm-polyethylene glycol (4-arm-PEG). We have achieved exceptional sprayability by controlling the pH of the precursor solution. The homogeneous network, constructed through uniform cross-linking of amino groups in protein and 4-arm-PEG-NHS, provides the hydrogel with outstanding fatigue resistance, low swelling and sustained adhesion. In vitro testing demonstrated that it could endure 2000 cycles of underwater shearing, while in vivo experiments showed adhesion maintenance exceeding 24 h. Furthermore, the hydrogel excelled in sealing leaks and promoting ulcer healing in models including porcine cardiac hemorrhage, lung air leakage and rat oral ulcers, surpassing commonly used clinical materials. Therefore, our research presents an advanced biomaterial strategy with the potential to advance the clinical management of wet, dynamic and concealed wounds.
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Affiliation(s)
- Yi Zhang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Material Science and Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, China
| | - Yanjun Pan
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, 1678 Dong Fang Road, Shanghai 200127, China
| | - Ronghang Chang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Material Science and Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, China
| | - Kangli Chen
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Material Science and Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, China
| | - Kun Wang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Material Science and Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, China
| | - Haoqi Tan
- Suzhou Innovation Center of Shanghai University, Shanghai University, Suzhou 215000, Jiangsu, China
| | - Meng Yin
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, 1678 Dong Fang Road, Shanghai 200127, China
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Material Science and Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, China
| | - Xue Qu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Material Science and Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, China
- Wenzhou Institute of Shanghai University, Wenzhou, 325000, China
- Shanghai Frontier Science Center of Optogenetic Techniques for Cell Metabolism Shanghai, 200237, China
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Sun J, Tan H, Liu H, Jin D, Yin M, Lin H, Qu X, Liu C. A reduced polydopamine nanoparticle-coupled sprayable PEG hydrogel adhesive with anti-infection activity for rapid wound sealing. Biomater Sci 2021; 8:6946-6956. [PMID: 32996923 DOI: 10.1039/d0bm01213k] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
There is a growing demand to develop sprayable hydrogel adhesives with rapid-forming and antibacterial abilities to instantly seal open wounds and combat pathogen infection. Herein, we propose to design a polydopamine nanoparticle (PDA NP) coupled PEG hydrogel that can quickly solidify via an amidation reaction after spraying as well as tightly binding PDA NPs to deliver reactive oxygen species (ROS) and induce a photothermal effect for bactericidal activity, and provide a hydrophilic surface for antifouling activity. The molecular structure of the 4-arm-PEG-NHS precursor was regulated to increase its reactivity with 4-arm-PEG-NH2, which thus shortened the gelation time of the PEG adhesive to 1 s to allow a fast solidification after being sprayed. The PEG-NHS precursor also provided covalent binding with tissue and PDA NPs. The reduced PDA NPs have redox activity to convey electrons to oxygen to generate ROS (H2O2), thus endowing the hydrogel with ROS dependent antibacterial ability. Moreover, NIR irradiation can accelerate the ROS release because of the photothermal effect of PDA NPs. In vitro tests demonstrated that H2O2 and the NIR-photothermal effect synergistically induced a fast bacterial killing, and an in vivo anti-infection test also proved the effectiveness of PEG-PDA. The sprayable PEG-PDA hydrogel adhesive, with rapid-forming performance and a dual bactericidal mechanism, may be promising for sealing large-scale and acute wound sites or invisible bleeding sites, and protect them from pathogen infection.
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Affiliation(s)
- Junjie Sun
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of material science and engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Haoqi Tan
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of material science and engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Huan Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of material science and engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Dawei Jin
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, 1678 Dong Fang Road, Shanghai, 200127, China
| | - Meng Yin
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, 1678 Dong Fang Road, Shanghai, 200127, China
| | - Haodong Lin
- Department of Orthopedic Surgery, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200080, China
| | - Xue Qu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of material science and engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of material science and engineering, East China University of Science and Technology, Shanghai 200237, China.
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Tan H, Jin D, Sun J, Song J, Lu Y, Yin M, Chen X, Qu X, Liu C. Enlisting a Traditional Chinese Medicine to tune the gelation kinetics of a bioactive tissue adhesive for fast hemostasis or minimally invasive therapy. Bioact Mater 2020; 6:905-917. [PMID: 33163698 PMCID: PMC7599438 DOI: 10.1016/j.bioactmat.2020.10.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 10/08/2020] [Accepted: 10/19/2020] [Indexed: 12/15/2022] Open
Abstract
Gelation kinetics is important in tailoring chemically crosslinked hydrogel-based injectable adhesives for different applications. However, the regulation of gelation rate is usually limited to varying the gel precursor and/or crosslinker concentration, which cannot reach a fine level and inevitably alters the physical properties of hydrogels. Amidation reactions are widely used to synthesize hydrogel adhesives. In this work, we propose a traditional Chinese medicine (Borax)-input strategy to tune the gelation rate of amidation reaction triggered systems. Borax provides an initial basic buffer environment to promote the deprotonation process of amino groups and accelerate this reaction. By using a tissue adhesive model PEG-lysozyme (PEG-LZM), the gelation time can be modulated from seconds to minutes with varying Borax concentrations, while the physical properties remain constant. Moreover, the antibacterial ability can be improved due to the bioactivity of Borax. The hydrogel precursors can be regulated to solidify instantly to close the bleeding wound at emergency. Meanwhile, they can also be customized to match the flowing time in the catheter, thereby facilitating minimally invasive tissue sealing. Because this method is easily operated, we envision Borax adjusted amidation-type hydrogel has a promising prospect in clinical application.
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Affiliation(s)
- Haoqi Tan
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Dawei Jin
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, 1678 Dong Fang Road, Shanghai, 200127, China
| | - Junjie Sun
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Jialin Song
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Yao Lu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Meng Yin
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, 1678 Dong Fang Road, Shanghai, 200127, China
| | - Xin Chen
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Xue Qu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
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Affiliation(s)
- Mitsuhiro Shibayama
- Institute for Solid State Physics; The University of Tokyo; 5-1-5 Kashiwanoha Kashiwa Chiba 277-8581 Japan
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Berke B, Czakkel O, Porcar L, Geissler E, László K. Static and dynamic behaviour of responsive graphene oxide-poly(N-isopropyl acrylamide) composite gels. SOFT MATTER 2016; 12:7166-7173. [PMID: 27494097 DOI: 10.1039/c6sm00666c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Thermoresponsive hydrogels have enormous potential e.g., as sensors, actuators, and pollution control remedies or in drug delivery systems. Nevertheless, their application is often restricted by physical limitations (poor mechanical strength and uncontrolled thermal response). Composite systems may offer a means of overcoming these limitations. This paper presents a systematic study of the structure and dynamics of graphene oxide-poly-(N-isopropylacrylamide) composite systems, and investigates the effect of the nanoparticle filler content on the mechanical and swelling properties of the systems. A combination of macroscopic (swelling and elastic modulus) and microscopic (differential scanning microcalorimetry, small angle neutron scattering and neutron spin-echo spectroscopy) investigations reveals that the architecture of the polymer network is modified by chain nucleation at the surface of the GO platelets, and these form a percolating network inside the gel. Our results show that the elastic modulus of the gels is reinforced by the filler, but the mobility of the polymer chains in the swollen state is practically unaffected. The macroscopic deswelling of the composites, however, is slowed by the kinetics of ordering in the GO network.
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Affiliation(s)
- B Berke
- Institut Laue Langevin, CS 20156, F - 38042 Grenoble Cedex 9, France.
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