Wireless Tissue Engineered Bioelectronics integrating a dual-mechano-electrical Therapy for Volumetric Muscle Loss

forthcoming

Volumetric muscle loss (VML), or a frank loss of muscle tissue often results in a permanent loss of muscle tissue and chronic reduction in strength, which can lead to long-term disability. Tissue engineered biomaterial matrix (e.g. hydrogels) offers a promising strategy to restore and improve the function of VML injuries and regeneration. However, muscle regeneration cannot succeed in the absence of biophysical (e.g. mechanical force, topography, and electrical induction) and/or biochemical cues (e.g. integrins) from the extracellular matrix. The matrix design must take into account the functional characteristics of the target tissue. For example, the structural anisotropy in muscle is critical in guiding cell organization and generating powerful muscle contractions. Recently, mechanotherapy has drawn the attention of physical therapists, which is a strategy for tissue repair and remodelling through a conversional process from mechanical signals into biochemical response in cells. Moreover, muscle is responsive to electrical stimulation due to its physiological nature. Bioresorbable wireless bioelectronics as electrical stimulators have been developed for many applications, including neuromuscular regeneration, and cardiac pacemakers etc. Inspired by these, I aim to develop a novel anisotropic matrix with mechano-responsive properties, followed by integration with bioelectronics, which will provide a dual-mechano-electrical therapy for VML. To achieve this, I will carry out the project employing an interdisciplinary approach, including polymer chemistry, physics, electronic engineering, mechanobiology, and regenerative medicine. My experience in polymer chemistry, physics, and mechanobiology will be integrated with the outstanding expertise of the Northwestern University and University of Cambridge in bioelectronics and regenerative medicine. If successful, it will be a dramatic development for regenerative medicine and broaden the applications of bioelectronics.