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Proceedings Paper

Light-induced extracellular stimulation using organic electrolytic photocapacitors (Conference Presentation)
Author(s): Eric Glowacki
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Paper Abstract

We report on a nanoscale semiconducting optoelectronic system optimized for neuronal stimulation: the organic electrolytic photocapacitor. The devices comprise a trilayer of metal and p and n semiconductors. When illuminated in physiological solution, these metal-semiconductor devices charge up, transducing light pulses into localized displacement currents that are strong enough to stimulate cells. The devices are freestanding, requiring no wiring or external bias, and are stable in physiological conditions. We have systematically evaluated the ability of photocapacitor devices to alter the cell membrane potential of single nonexcitable cells, generate action potentials in neuronal cell cultures, and stimulate explanted light-insensitive embryonic retinas.

Paper Details

Date Published: 18 September 2018
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Proc. SPIE 10738, Organic and Hybrid Sensors and Bioelectronics XI, 107380V (18 September 2018); doi: 10.1117/12.2322613
Show Author Affiliations
Eric Glowacki, Linköping Univ. (Sweden)


Published in SPIE Proceedings Vol. 10738:
Organic and Hybrid Sensors and Bioelectronics XI
Ioannis Kymissis; Ruth Shinar; Luisa Torsi; Emil J. W. List-Kratochvil, Editor(s)

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