Hydration-dependent infrared study of eumelanin

Zakhar Bedran, Sergei S. Zhukov,Pavel A. Abramov,Ilya O. Tyurenkov,Boris P. Gorshunov,A. Bernard Mostert,Konstantin A. Motovilov

2021 46TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ)（2021）

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Abstract

Here we report our study of the mid-infrared absorption spectra of a melanin thin film performed with hydration level variation. We demonstrate the direct signatures of the proposed earlier comproportionation reaction induced by continuous hydration along with the fingerprints of three water sub-phases in hydrated melanin.

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Key words

eumelanin,melanin thin film,hydration level variation,comproportionation reaction,continuous hydration,three water subphases,mid-infrared absorption spectra

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