2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)

Hydration-dependent infrared study of eumelanin.

Zakhar V Bedran ¹

Sergei S Zhukov ¹

Pavel A Abramov ¹

Ilya O Tyurenkov ¹

B.P. Gorshunov ¹

A Bernard Mostert ²

Konstantin A Motovilov ¹

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Moscow Institute of Physics and Technology,Dolgoprudny, Moscow Region,Russia,141700 |

Swansea University,Department of Chemistry,Singleton Park,Wales,UK |

Publication type: Proceedings Article

Publication date: 2021-08-29

Institute of Electrical and Electronics Engineers (IEEE)

Journal: 2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)

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DOI: 10.1109/IRMMW-THz50926.2021.9567391

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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.