Electrochemical and in vitro neuronal recording characteristics of multi-electrode arrays surface-modified with electro-co-deposited gold-platinum nanoparticles

被引：7

作者：

Kim, Yong Hee ^{[1
]}

Kim, Ah Young ^{[1
]}

Kim, Gook Hwa ^{[1
]}

Han, Young Hwan ^{[1
]}

Chung, Myung-Ae ^{[1
]}

Jung, Sang-Don ^{[1
]}

机构：

[1] Elect & Telecommun Res Inst, Synapse Device Creat Res Ctr, 218 Gajeong Ro, Daejeon 305700, South Korea

来源：

BIOMEDICAL MICRODEVICES | 2016年 / 18卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

Au-Pt nanoparticles; Electro-co-deposition; Multi-electrode array; Neuronal signal recording;

D O I：

10.1007/s10544-016-0044-4

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

In order to complement the high impedance electrical property of gold nanoparticles (Au NPs) we have performed electro-co-deposition of gold-platinum nanoparticles (Au-Pt NPs) onto the Au multi-electrode array (MEA) and modified the Au-Pt NPs surface with cell adhesive poly-D-lysine via thiol chemistry based covalent binding. The Au-Pt NPs were analyzed to have bimetallic nature not the mixture of Au NPs and Pt NPs by X-ray diffraction analysis and to have impedance value (4.0 x 10(4) Omega (at 1 kHz)) comparable to that of Pt NPs. The performance of Au-Pt NP-modified MEAs was also checked in relation to neuronal signal recording. The noise level in Au-Pt NP-modified MEAs was lower than in that of Au NP-modified MEA.

引用

页码：1 / 7

页数：7

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