Chemical and structural diversity in eumelanins: Unexplored bio-optoelectronic materials

d'Ischia, Marco, Napolitano, Alessandra, Pezzella, Alessandro and Meredith, Paul (2009) Chemical and structural diversity in eumelanins: Unexplored bio-optoelectronic materials. Angewandte Chemie International Edition, 48 22: 3914-3921. doi:10.1002/anie.200803786


Author d'Ischia, Marco
Napolitano, Alessandra
Pezzella, Alessandro
Meredith, Paul
Title Chemical and structural diversity in eumelanins: Unexplored bio-optoelectronic materials
Journal name Angewandte Chemie International Edition   Check publisher's open access policy
ISSN 1433-7851
Publication date 2009
Year available 2009
Sub-type Article (original research)
DOI 10.1002/anie.200803786
Volume 48
Issue 22
Start page 3914
End page 3921
Total pages 8
Editor Peter Goelitz
Place of publication Germany
Publisher Wiley
Collection year 2010
Language eng
Subject C1
970102 Expanding Knowledge in the Physical Sciences
0204 Condensed Matter Physics
Abstract A black whole: The black insoluble biopolymer eumelanin is prepared through the oxidative polymerization of 5,6-dihydroxyindoles (see scheme). It has a largely unknown heterogeneous structure and unique optoelectronic properties. Current structural models are presented and possible applications are discussed. Eumelanins, the characteristic black, insoluble, and heterogeneous biopolymers of human skin, hair, and eyes, have intrigued and challenged generations of chemists, physicists, and biologists because of their unique structural and optoelectronic properties. Recently, the methods of organic chemistry have been combined with advanced spectroscopic and imaging techniques, theoretical calculations, and methods of condensed-matter physics to gradually force these materials to reveal their secrets. Herein we review the latest advances in the field with a view to showing how the emerging knowledge is not only helping to explain eumelanin functionality, but may also be translated into effective strategies for exploiting their properties to create a new class of biologically inspired high-tech materials.
Keyword 5,6-dihydroxyindoles
biopolymers
materials science
melanins
photochemistry
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: Centre for Organic Photonics and Electronics
School of Mathematics and Physics
2010 Higher Education Research Data Collection
 
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Created: Tue, 23 Mar 2010, 10:55:35 EST by Jo Hughes on behalf of Physics