ECE PhD Proposal Review: Jaehyeon Ryu

PhD Proposal Review: Engineering Functional Nanomesh for Advanced Neuroelectronics

Jaehyeon Ryu

Location: Zoom Link

Abstract: Transparent electronics have emerged as promising platforms for neural interfacing by enabling simultaneous electrophysiological recording and optical measurements. Also, there are high demands for stretchable devices due to their low modulus and compatible interface with irregular and soft neural tissue. However, current transparent, stretchable approaches are usually limited by their scalability for neuroelectronic applications. Here, I present multi-functional nanomesh as an approach to achieve stretchable, transparent microelectrode arrays (MEAs) with excellent scalability. By stacking mechanical supporting polymer, gold, and conductive polymer in a nanomesh structure on elastomer substrate, multilayer nanomesh-based MEAs show excellent stretchability, transparency, and electrochemical properties with single neuron scale dimensions. The performance of these multi-functional nanomesh-based MEAs has been characterized through bench testing, and I plan to perform in vivo validation in the remaining period of my thesis. These highly stretchable and transparent multilayer nanomesh MEAs are promising for applications ranging from neuroscience to biomedical devices.