Integrating Graphene Oxide-Hydrogels and Electrical Stimulation for Controlled Neurotrophic Factor Encapsulation: A Promising Approach for Efficient Nerve Tissue Regeneration
Details
Publication Year 2024-06-03,Volume 7,Issue #6,Page 4175-4192
Journal Title
ACS Applied Bio Materials
Publication Type
Research article
Abstract
Nerve growth factor (NGF) plays a crucial role in cellular growth and neurodifferentiation. To achieve significant neuronal regeneration and repair using in vitro NGF delivery, spatiotemporal control that follows the natural neuronal processes must be developed. Notably, a challenge hindering this is the uncontrolled burst release from the growth factor delivery systems. The rapid depletion of NGF reduces treatment efficacy, leading to poor cellular response. To address this, we developed a highly controllable system using graphene oxygen (GO) and GelMA hydrogels modulated by electrical stimulation. Our system showed superior control over the release kinetics, reducing the burst up 30-fold. We demonstrate that the system is also able to sequester and retain NGF up to 10-times more efficiently than GelMA hydrogels alone. Our controlled release system enabled neurodifferentiation, as revealed by gene expression and immunostaining analysis. The increased retention and reduced burst release from our system show a promising pathway for nerve tissue engineering research toward effective regeneration.
Publisher
ACS Publications
Keywords
GelMA; GelMA/GO; Ngf; NGF release; NGF uptake; electrical stimulation; electroactive hydrogels; nerve growth factor
Department(s)
Laboratory Research
Terms of Use/Rights Notice
Refer to copyright notice on published article.


Creation Date: 2024-07-17 03:02:33
Last Modified: 2024-07-17 03:11:20

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