Title :
A transparent μECoG array for simultaneous recording and optogenetic stimulation
Author :
Ledochowitsch, Peter ; Olivero, Elisa ; Blanche, Tim ; Maharbiz, Michel M.
Author_Institution :
Bioeng. Dept., Univ. of California, Berkeley, CA, USA
fDate :
Aug. 30 2011-Sept. 3 2011
Abstract :
In this paper we report for the first time the design, fabrication and characterization of an optically transparent electrode array for micro-electrocorticography. We present a 49-channel μECoG array with an electrode pitch of 800 μm and a 16-channel linear μECoG array with an electrode pitch of 200 μm. The backing material was Parylene C. Transparent, sputtered indium tin oxide (ITO) was used in conjunction with e-beam evaporated gold to fabricate the electrodes. We provide electrochemical impedance characterization and light transmission data for the fabricated devices.
Keywords :
biochemistry; biomedical electrodes; electrochemical electrodes; electroencephalography; evaporation; gold; indium compounds; light transmission; organic compounds; recording; sputter deposition; 16-channel linear μECoG array; 49-channel μECoG array; Au; ITO; e-beam evaporated gold; electrochemical impedance characterization; electrode pitch; fabricated devices; light transmission data; microelectrocorticography; optically transparent electrode array; optogenetic stimulation; parylene C; simultaneous recording; sputtered indium tin oxide; transparent μECoG array; Arrays; Electrodes; Fabrication; Gold; Indium tin oxide; Neuroscience; Resistance; Electrodes; Electroencephalography;
Conference_Titel :
Engineering in Medicine and Biology Society, EMBC, 2011 Annual International Conference of the IEEE
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-4121-1
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2011.6090808
