Creating low-impedance tetrodes by electroplating with additives.

Creating low-impedance tetrodes by electroplating with additives.
复制标题

DOI:
10.1016/j.sna.2009.10.001
复制
发表时间:
2009-12-01
影响因子:
4.6
通讯作者:
Redish, A. David
Redish, A. David
中科院分区:
工程技术3区
文献类型:
--
作者:
Ferguson, John E.;Boldt, Chris;Redish, A. David

文献摘要

参考文献

被引文献

相似文献

四极是由四根微线组成的一束,可以同时记录自由运动动物大脑中多个神经元的信号。四极管通常电镀,以减少阻抗从2-3 MΩ到200-500 kΩ(测量在1 kHz),这增加了信噪比,并允许小幅度信号的记录。阻抗更低的四极管可以改善神经记录,但不能用标准的电镀方法制造而不短路。通过将聚乙二醇(PEG)或多壁碳纳米管(MWCNT)溶液添加到商业镀金溶液中,我们能够将四极电极电镀到30-70 kΩ。MWCNTs和PEG在电镀过程中起到抑制剂的作用,在四极尖端形成了大表面积、低阻抗的涂层。
A tetrode is a bundle of four microwires that can record from multiple neurons simultaneously in the brain of a freely moving animal. Tetrodes are usually electroplated to reduce impedances from 2-3 MΩ to 200-500 kΩ (measured at 1 kHz), which increases the signal-to-noise ratio and allows for the recording of small amplitude signals. Tetrodes with even lower impedances could improve neural recordings but cannot be made using standard electroplating methods without shorting. We were able to electroplate tetrodes to 30-70 kΩ by adding polyethylene glycol (PEG) or multi-walled carbon nanotube (MWCNT) solutions to a commercial gold-plating solution. The MWCNTs and PEG acted as inhibitors in the electroplating process and created large-surface-area, low-impedance coatings on the tetrode tips.
DOI: 10.1016/0165-0270(95)00085-2
发表时间: 1995-12-01
影响因子: 3
作者:
Gray, CM;Maldonado, PE;McNaughton, B
通讯作者: McNaughton, B
DOI: 10.1126/science.8351520
发表时间: 1993-08-20
期刊: SCIENCE
影响因子: 56.9
作者:
WILSON, MA;MCNAUGHTON, BL
通讯作者: MCNAUGHTON, BL
DOI: 10.1016/s0924-4247(02)00427-2
发表时间: 2003-02-15
影响因子: 4.6
作者:
Cui, XY;Martin, DC
通讯作者: Martin, DC
DOI: 10.1016/0013-4686(94)e0023-s
发表时间: 1994-06-01
影响因子: 6.6
作者:
WINAND, R
通讯作者: WINAND, R
DOI: 10.1016/0165-0270(95)00107-7
发表时间: 1995-12-01
影响因子: 3
作者:
Loeb, GE;Peck, RA;Martyniuk, J
通讯作者: Martyniuk, J