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Journal Article
A High-performance Transparent Graphene/Vertically Aligned Carbon Nanotube (VACNT) Hybrid Electrode for Neural Interfacing
- Authors
- Du Won Jeong, Gook Hwa Kim, Na Yeon Kim, Zonghoon Lee, Sang Don Jung, Jeong-O. Lee
- Issue Date
- 2017-01
- Citation
- RSC Advances, v.7, no.6, pp.3273-3281
- ISSN
- 2046-2069
- Publisher
- Royal Society of Chemistry (RSC)
- Language
- English
- Type
- Journal Article
- Abstract
- Neural interfaces that do not damage cells or tissues are key to connecting brain functions to neural prosthetics. Here, we designed a transparent graphene/vertically aligned carbon nanotube (VACNT) electrode capable of extracellularly recording spontaneous action potentials in Sprague-Dawley rat primary cortex neurons. Graphene provided the dual function of contacting the VACNTs and visually monitoring the cell viability. The hybrid electrodes exhibited remarkably high peak-to-peak signal amplitudes (1600 μV) and low noise levels, presumably due to tight junction formation between the cells and the deformed CNTs. Spike simulation and high-resolution transmission electron microscopy (HRTEM) imaging confirmed the excellent interfacial characteristics of the cells and the transparent hybrid electrodes.
- KSP Keywords
- Carbon nano-tube(CNT), Cell viability, Dual function, Electron microscopy(SEM), High performance, Interfacial characteristics, Low noise, Neural interface, Tight junction, Transmission Electron Microscopy(TEM), high-resolution transmission electron microscopy(HRTEM)
This work is distributed under the term of Creative Commons License (CCL)
(CC BY NC)
(CC BY NC)
