Single walled carbon nanohorns composite for neural sensing and stimulation

被引：23

作者：

Carli, Stefano ^{[1
]}

Lambertini, Linda ^{[1
]}

Zucchini, Elena ^{[1
,2
]}

Ciarpella, Francesca ^{[1
,2
]}

Scarpellini, Alice ^{[3
]}

Prato, Mirko ^{[4
]}

Castagnola, Elisa ^{[1
]}

Fadiga, Luciano ^{[1
,2
]}

Ricci, Davide ^{[1
]}

机构：

[1] Ist Italiano Tecnol, Ctr Translat Neurophysiol Speech & Commun, Via Fossato di Mortara 17-19, I-44121 Ferrara, Italy

[2] Univ Ferrara, Sect Human Physiol, Via Fossato di Mortara 17-19, I-44121 Ferrara, Italy

[3] Ist Italiano Tecnol, Electron Microscopy Facil, Via Morego 30, I-16163 Genoa, Italy

[4] Ist Italiano Tecnol, Mat Characterizat Facil, Via Morego 30, I-16163 Genoa, Italy

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2018年 / 271卷

关键词：

PEDOT; Electrodeposition; Single walled carbon nanohorns; Neural sensing and stimulation; Multielectrode arrays; Neural implants; CATALYTIC COUNTER ELECTRODES; PHOTOELECTRON-SPECTROSCOPY; MICROELECTRODE ARRAYS; CONDUCTING POLYMERS; FILMS; POLY(3,4-ETHYLENEDIOXYTHIOPHENE); RECORDINGS; INTERFACE; DEGRADATION; IMPEDANCE;

D O I：

10.1016/j.snb.2018.05.083

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Oxidized single walled carbon nanohorns (ox-SWCNH) were electrodeposited onto gold microelectrode arrays in conjunction with poly(3,4-ethylenedioxythiophene) (PEDOT) and polystirenesulfonate (PSS), and the properties of the new composite material for neural recording and stimulation were assessed. PEDOT/ox-SWCNH composites were compared with films prepared with one of the most notorious carbonaceous material in this field, the oxidized multi-walled Carbon Nanotubes (ox-MWCNT). The PEDOT/ox-SWCNH exhibited superior charge transfer capability, reflecting greater electroactive surface, as confirmed by SEM and EIS characterizations. As a consequence, a charge injection limit of 11.6 mC/cm(2) was observed for the new composite, which is higher than the one of PEDOT/ox-MWCNT (8.7 mC/cm(2)). Having confirmed comparable neural recording performance, the PEDOT/ox-SWCNH composite results very promising for improving therapeutic electrical stimulation in the central and peripheral nervous systems.

引用

页码：280 / 288

页数：9

共 42 条

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