期刊
MACROMOLECULAR BIOSCIENCE
卷 22, 期 2, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mabi.202100355
关键词
biosensors; controlled delivery; electroconductive hydrogels; neural electrode interface; neural stem cell differentiation
资金
- National Science Foundation CAREER Award [CBET-1652112]
- Natural Sciences and Engineering Research Council of Canada Postgraduate Doctoral Scholarship
Electroresponsive hydrogels with conducting material components can respond to electric stimulation by absorbing and expelling water. These hydrogels are suitable for enhancing neural electrical signals and ion transport in the brain, with potential applications in drug delivery control and neural stem cell differentiation. Challenges and future research directions in this field are also discussed in this review.
Electroresponsive hydrogels possess a conducting material component and respond to electric stimulation through reversible absorption and expulsion of water. The high level of hydration, soft elastomeric compliance, biocompatibility, and enhanced electrochemical properties render these hydrogels suitable for implantation in the brain to enhance the transmission of neural electric signals and ion transport. This review provides an overview of critical electroresponsive hydrogel properties for augmenting electric stimulation in the brain. A background on electric stimulation in the brain through electroresponsive hydrogels is provided. Common conducting materials and general techniques to integrate them into hydrogels are briefly discussed. This review focuses on and summarizes advances in electric stimulation of electroconductive hydrogels for therapeutic applications in the brain, such as for controlling delivery of drugs, directing neural stem cell differentiation and neurogenesis, improving neural biosensor capabilities, and enhancing neural electrode-tissue interfaces. The key challenges in each of these applications are discussed and recommendations for future research are also provided.
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