| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7138953 | Sensors and Actuators B: Chemical | 2018 | 9 Pages |
Abstract
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 11.6â¯mC/cm2 was observed for the new composite, which is higher than the one of PEDOT/ox-MWCNT (8.7â¯mC/cm2). 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.
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Authors
Stefano Carli, Linda Lambertini, Elena Zucchini, Francesca Ciarpella, Alice Scarpellini, Mirko Prato, Elisa Castagnola, Luciano Fadiga, Davide Ricci,