| Autor: |
Slaughter, Christopher, Velasco-Bosom, Santiago, Tao, Xudong, Ruiz-Mateos Serrano, Ruben, Kissovsky, Stefany, Mizuta, Ryo, Mantione, Daniele, Keene, Scott T., Malliaras, George G., Dominguez-Alfaro, Antonio |
| Zdroj: |
Journal of Materials Chemistry C; 10/7/2024, Vol. 12 Issue 37, p14944-14954, 11p |
| Abstrakt: |
There is strong interest in developing scalable deposition techniques for conducting polymer coatings for applications in bioelectronics. Here, we explore the potential of electrogelation to develop coatings from poly(3,4-ethylenedioxythiophene) polystyrene sulphonate (PEDOT:PSS) and its copolymer with poly (styrene sulphonate-co-styrene methanamine) (PEDOT:PSS-co-PSMA). The coatings were used to lower the impedance of screen-printed silver electrodes, leading to a decrease in the voltage needed to achieve cutaneous stimulation of small fibres and an increase in the signal-to-noise ratio in cutaneous biopotential recordings. Additionally, PEDOT:PSS-co-PSMA was integrated as the gate electrode in an organic electrochemical transistor, showing improved performance compared to non-modified and PEDOT:PSS-coated gold electrodes, i.e., a threshold voltage decreased from 0.7 V for pristine gold to 0.5 V for the PEDOT:PSS-co-PSMA gate electrode. The results show that electrogelation offers a scalable and cost-effective solution for the deposition of conducting polymers, including non-solution-processable conducting polymers, as performance-enhancing coatings for bioelectronic applications. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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