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An electrochemical study of natural and chemically controlled eumelanin

Ri Xu, Carmela Tania Prontera, Eduardo Di Mauro, Alessandro Pezzella, Francesca Soavi and Clara Santato

Article (2017)

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Abstract

Eumelanin is the most common form of the pigment melanin in the human body, with functions including antioxidant behavior, metal chelation, and free radical scavenging. This biopigment is of interest for biologically derived batteries and supercapacitors. In this work, we characterized the voltammetric properties of chemically controlled eumelanins produced from 5,6-dihydroxyindole (DHI) and 5,6-dihydroxyindole-2-carboxylic acid (DHICA) building blocks, namely, DHI-melanin, DHICA-melanin, and natural eumelanin, extracted from the ink sac of cuttlefish, Sepia melanin. Eumelanin electrodes were studied for their cyclic voltammetric properties in acidic buffers including Na⁺, K⁺, NH₄⁺, and Cu²⁺ ions. (C) 2017 Author(s).

Uncontrolled Keywords

metal-ions ; dihydroxyindole-melanin ; binding ; transport ; insights ; affinity ; cells ; dopa

Subjects: 3100 Physics > 3100 Physics
Department: Department of Engineering Physics
Funders: NSERC (Natural Sciences and Engineering Research Council of Canada), POLYMED, Executive Bilateral Program Italy-Quebec
Grant number: MC-IRSES-612538
PolyPublie URL: https://publications.polymtl.ca/5177/
Journal Title: APL Materials (vol. 5, no. 12)
Publisher: AIP Publishing
DOI: 10.1063/1.5000161
Official URL: https://doi.org/10.1063/1.5000161
Date Deposited: 27 Feb 2023 09:09
Last Modified: 11 Apr 2024 03:53
Cite in APA 7: Xu, R., Prontera, C. T., Di Mauro, E., Pezzella, A., Soavi, F., & Santato, C. (2017). An electrochemical study of natural and chemically controlled eumelanin. APL Materials, 5(12), 126108 (8 pages). https://doi.org/10.1063/1.5000161

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