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Eumelanin-based multisensory platform: A case of study for photolithographic patterning

delete2022-08-01
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PRE
AI
J
João Vitor Paulin
L
Luiz G. S. Albano
D
Davi H. S. de Camargo
B
Bruna Andressa Bregadiolli
C
Carlos F. O. Graeff
C
Carlos César Bof Bufon *
DOI:10.1016/j.apmt.2022.101525delete
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Abstract

Abstract

En 中文
Eumelanin, the most abundant brown-black pigment found in humans, is an ideal candidate for bioelectronics and eco-design technologies due to its biocompatibility, biodegradability, and hydration-dependent conductivity. Here, we validate the use of standard photolithography for integrating synthetic eumelanin into robust solidstate device platforms without unconventional methodologies. By combining AFM, Raman, and XPS with DC and AC electrical measurements, we have shown that eumelanin's film topography, chemical composition, and charge transport are not affected by the pattern process. Based on these findings, we explore interdigitated electrode structures for pH, humidity, and contact sensing system aiming at miniaturized wearable technologies for human healthcare monitoring.
Keywords:
Patterning
Photolithography
Eumelanin
pH sensing
Humidity sensing
Wearable technology

Journal

Applied Materials Today cover
Applied Materials Today
IF:
6.9
Papers:
3.2K
Citations:
1.6W

Organization

U
Universidade Estadual Paulista
Scholars:
3.1W
Papers: 2.0W
Citations: 24