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Hu Y, Wang Y, Yang F, Liu D, Lu G, Li S, Wei Z, Shen X, Jiang Z, Zhao Y, Pang Q, Song B, Shi Z, Shafique S, Zhou K, Chen X, Su W, Jian J, Tang K, Liu T, Zhu Y. Flexible Organic Photovoltaic-Powered Hydrogel Bioelectronic Dressing With Biomimetic Electrical Stimulation for Healing Infected Diabetic Wounds. Adv Sci (Weinh) 2024; 11:e2307746. [PMID: 38145346 PMCID: PMC10933690 DOI: 10.1002/advs.202307746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 11/28/2023] [Indexed: 12/26/2023]
Abstract
Electrical stimulation (ES) is proposed as a therapeutic solution for managing chronic wounds. However, its widespread clinical adoption is limited by the requirement of additional extracorporeal devices to power ES-based wound dressings. In this study, a novel sandwich-structured photovoltaic microcurrent hydrogel dressing (PMH dressing) is designed for treating diabetic wounds. This innovative dressing comprises flexible organic photovoltaic (OPV) cells, a flexible micro-electro-mechanical systems (MEMS) electrode, and a multifunctional hydrogel serving as an electrode-tissue interface. The PMH dressing is engineered to administer ES, mimicking the physiological injury current occurring naturally in wounds when exposed to light; thus, facilitating wound healing. In vitro experiments are performed to validate the PMH dressing's exceptional biocompatibility and robust antibacterial properties. In vivo experiments and proteomic analysis reveal that the proposed PMH dressing significantly accelerates the healing of infected diabetic wounds by enhancing extracellular matrix regeneration, eliminating bacteria, regulating inflammatory responses, and modulating vascular functions. Therefore, the PMH dressing is a potent, versatile, and effective solution for diabetic wound care, paving the way for advancements in wireless ES wound dressings.
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Affiliation(s)
- Yi‐Wei Hu
- Health Science CenterNingbo UniversityNingbo315211P. R. China
- Orthopaedic Oncology Center of Changzheng HospitalNaval Medical UniversityShanghai200003P. R. China
| | - Yu‐Heng Wang
- Faculty of Electrical Engineering and Computer ScienceNingbo UniversityNingbo315211P. R. China
- State Key Laboratory of Electrical Insulation and Power EquipmentXi'an Jiaotong UniversityXi'an710049P. R. China
- CAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and TechnologyUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Fang Yang
- Health Science CenterNingbo UniversityNingbo315211P. R. China
| | - Ding‐Xin Liu
- State Key Laboratory of Electrical Insulation and Power EquipmentXi'an Jiaotong UniversityXi'an710049P. R. China
| | - Guang‐Hao Lu
- State Key Laboratory of Electrical Insulation and Power EquipmentXi'an Jiaotong UniversityXi'an710049P. R. China
| | - Sheng‐Tao Li
- State Key Laboratory of Electrical Insulation and Power EquipmentXi'an Jiaotong UniversityXi'an710049P. R. China
| | - Zhi‐Xiang Wei
- CAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and TechnologyUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Xiang Shen
- The Research Institute of Advanced TechnologiesNingbo UniversityNingbo315211P. R. China
| | - Zhuang‐De Jiang
- State Key Laboratory for Manufacturing Systems EngineeringXi'an Jiaotong UniversityXi'an710049P. R. China
| | - Yi‐Fan Zhao
- State Key Laboratory for Manufacturing Systems EngineeringXi'an Jiaotong UniversityXi'an710049P. R. China
| | - Qian Pang
- Health Science CenterNingbo UniversityNingbo315211P. R. China
| | - Bai‐Yang Song
- Health Science CenterNingbo UniversityNingbo315211P. R. China
| | - Ze‐Wen Shi
- Health Science CenterNingbo UniversityNingbo315211P. R. China
| | - Shareen Shafique
- School of Physical Science and TechnologyNingbo UniversityNingbo315211P. R. China
| | - Kun Zhou
- Shenzhen Institute of Aggregate Science and TechnologyThe Chinese University of Hong Kong ShenzhenShenzhen518172P. R. China
| | - Xiao‐Lian Chen
- Printable Electronics Research Center & Nano‐Device and Materials DivisionSuzhou Institute of Nano‐Tech and Nano‐BionicsNano Chinese Academy of SciencesSuzhou215123P. R. China
| | - Wen‐Ming Su
- Printable Electronics Research Center & Nano‐Device and Materials DivisionSuzhou Institute of Nano‐Tech and Nano‐BionicsNano Chinese Academy of SciencesSuzhou215123P. R. China
| | - Jia‐Wen Jian
- Faculty of Electrical Engineering and Computer ScienceNingbo UniversityNingbo315211P. R. China
| | - Ke‐Qi Tang
- Institute of Mass SpectrometrySchool of Material Science and Chemical EngineeringNingbo UniversityNingbo315211P. R. China
| | - Tie‐Long Liu
- Orthopaedic Oncology Center of Changzheng HospitalNaval Medical UniversityShanghai200003P. R. China
| | - Ya‐Bin Zhu
- Health Science CenterNingbo UniversityNingbo315211P. R. China
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Chakraborty P, Guterman T, Adadi N, Yadid M, Brosh T, Adler-Abramovich L, Dvir T, Gazit E. A Self-Healing, All-Organic, Conducting, Composite Peptide Hydrogel as Pressure Sensor and Electrogenic Cell Soft Substrate. ACS Nano 2019; 13:163-175. [PMID: 30588802 PMCID: PMC6420063 DOI: 10.1021/acsnano.8b05067] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Conducting polymer hydrogels (CPHs) emerge as excellent functional materials, as they harness the advantages of conducting polymers with the mechanical properties and continuous 3D nanostructures of hydrogels. This bicomponent organization results in soft, all-organic, conducting micro-/nanostructures with multifarious material applications. However, the application of CPHs as functional materials for biomedical applications is currently limited due to the necessity to combine the features of biocompatibility, self-healing, and fine-tuning of the mechanical properties. To overcome this issue, we choose to combine a protected dipeptide as the supramolecular gelator, owing to its intrinsic biocompatibility and excellent gelation ability, with the conductive polymer polyaniline (PAni), which was polymerized in situ. Thus, a two-component, all-organic, conducting hydrogel was formed. Spectroscopic evidence reveals the formation of the emeraldine salt form of PAni by intrinsic doping. The composite hydrogel is mechanically rigid with a very high storage modulus ( G') value of ∼2 MPa, and the rigidity was tuned by changing the peptide concentration. The hydrogel exhibits ohmic conductivity, pressure sensitivity, and, importantly, self-healing features. By virtue of its self-healing property, the polymeric nonmetallic hydrogel can reinstate its intrinsic conductivity when two of its macroscopically separated blocks are rejoined. High cell viability of cardiomyocytes grown on the composite hydrogel demonstrates its noncytotoxicity. These combined attributes of the hydrogel allowed its utilization for dynamic range pressure sensing and as a conductive interface for electrogenic cardiac cells. The composite hydrogel supports cardiomyocyte organization into a spontaneously contracting system. The composite hydrogel thus has considerable potential for various applications.
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Affiliation(s)
- Priyadarshi Chakraborty
- Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Tom Guterman
- Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Nofar Adadi
- Department of Materials Science and Engineering, Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Moran Yadid
- Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Tamar Brosh
- Department of Oral Biology, The Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Lihi Adler-Abramovich
- Department of Oral Biology, The Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Tal Dvir
- Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
- Department of Materials Science and Engineering, Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Ehud Gazit
- Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
- Department of Materials Science and Engineering, Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv 6997801, Israel
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