Redox chemistry in the pigment eumelanin as a function of temperature using broadband dielectric spectroscopy.

ABSTRACT: Conductive biomolecular systems are investigated for their promise of new technologies. One biomolecular material that has garnered interest for device applications is eumelanin. Its unusual properties have led to its incorporation in a wide set of platforms including transistor devices and batteries. Much of eumelanin's conductive properties are due to a solid state redox comproportionation reaction. However, most of the work that has been done to demonstrate the role of the redox chemistry in eumelanin has been via control of eumelanin's hydration content with scant attention given to temperature dependent behavior. Here we demonstrate for the first time consistency between hydration and temperature effects for the comproportionation conductivity model utilizing dielectric spectro

SUBMITTER: Motovilov KA 

PROVIDER: S-EPMC9060503 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature