Cho, Young Uk Lee, Ju Young Jeong, Ui-Jin Park, Sang Hoon Lim, Se Lin Kim, Kyung Yeun Jang, Je Wu Park, Jong Ho Kim, Hyun Woo Shin, Hyogeun Jeon, Ho Jeong Jung, Young Mee Cho, Il-Joo Yu, Ki Jun 2024-01-19T12:33:08Z 2024-01-19T12:33:08Z 2022-01-10 2022-03 1616-301X https://pubs.kist.re.kr/handle/201004/115624 Transparent implantable devices have received significant attention in neuroscience and biomedical engineering by combining neural recording and optical modalities. Opaque, metal-based electrode arrays for electrophysiology block optical imaging and cause photoelectric artifacts, making them difficult to integrate with optogenetics. Here, a photoelectric artifact-free, highly conductive, and transparent poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) electrode array is introduced as promising neural implants. The technology which is developed in this work provides transparent neural interfaces through low-cost, ultra-facile method compared with other transparent materials being applied to implantable tools. The device exhibits superior optical, mechanical, and electrical characteristics to other studies, thanks to a simple ethylene glycol immersing process. The device performance is highlighted by comparing its light stimulation efficiency and photoelectric artifact extent with conventional thin gold electrodes both in vitro and in vivo. This platform can assemble transparent neural interfaces much more efficiently than any other material candidates and thus has many potential applications. English John Wiley & Sons Ltd. Ultra-Low Cost, Facile Fabrication of Transparent Neural Electrode Array for Electrocorticography with Photoelectric Artifact-Free Optogenetics Article 10.1002/adfm.202105568 1 Advanced Functional Materials, v.32, no.10 Advanced Functional Materials 32 10 N scie scopus 000723121400001 2-s2.0-85120002241 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article PEDOTPSS MICROELECTRODES FILM facile fabrication transparent neural electrode arrays photoelectric artifact-free implants