[23p-A105-1~13] 12.7 Biomedical Engineering and Biochips

△ [23p-A105-4] A floating 5 µm-diameter needle electrode on the tissue for damage-reduced chronic neural recording in mice

〇Koji Yamashita¹, Sawahata Hirohito², Yamagiwa Shota¹, Yokoyama Shohei³, Numano Rika¹, Koida Kowa¹, Kawano Takeshi¹ (1.Toyohashi Univ., 2.NIT, Ibaraki col., 3.TechnoPro R&D)

Keywords:neural probe, low invasiveness, chronic recording

We propose a neural recording using a 5-µm-diameter needle-electrode device, which enables following the brain’s motion. The implanted electrode device in a mouse brain showed no significant degradation of neural signals for 6 months and reduced tissue damage.