Eumelanin Coating of Silica Aerogel by Supercritical Carbon Dioxide Deposition of a 5,6-Dihydroxyindole Thin Film

Eumelanin integration in silica aerogel (SA) was achieved via supercritical adsorption of 5,6-dyhydroxyindole (DHI) from CO(2). Notably, after the supercritical treatment, DHI evolved towards spontaneous polymerization, which resulted in uniform pigment development over the SA. The new material was...

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Autores principales: Caputo, Giuseppe, Bonadies, Irene, Migliaccio, Ludovico, Caso, Maria Federica, Pezzella, Alessandro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6165250/
https://www.ncbi.nlm.nih.gov/pubmed/30134602
http://dx.doi.org/10.3390/ma11091494
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author Caputo, Giuseppe
Bonadies, Irene
Migliaccio, Ludovico
Caso, Maria Federica
Pezzella, Alessandro
author_facet Caputo, Giuseppe
Bonadies, Irene
Migliaccio, Ludovico
Caso, Maria Federica
Pezzella, Alessandro
author_sort Caputo, Giuseppe
collection PubMed
description Eumelanin integration in silica aerogel (SA) was achieved via supercritical adsorption of 5,6-dyhydroxyindole (DHI) from CO(2). Notably, after the supercritical treatment, DHI evolved towards spontaneous polymerization, which resulted in uniform pigment development over the SA. The new material was characterized for its morphological and physicochemical properties, disclosing the formation of a eumelanin-like coating, as confirmed by UV–vis and electron paramagnetic resonance (EPR) spectroscopy.
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spelling pubmed-61652502018-10-12 Eumelanin Coating of Silica Aerogel by Supercritical Carbon Dioxide Deposition of a 5,6-Dihydroxyindole Thin Film Caputo, Giuseppe Bonadies, Irene Migliaccio, Ludovico Caso, Maria Federica Pezzella, Alessandro Materials (Basel) Article Eumelanin integration in silica aerogel (SA) was achieved via supercritical adsorption of 5,6-dyhydroxyindole (DHI) from CO(2). Notably, after the supercritical treatment, DHI evolved towards spontaneous polymerization, which resulted in uniform pigment development over the SA. The new material was characterized for its morphological and physicochemical properties, disclosing the formation of a eumelanin-like coating, as confirmed by UV–vis and electron paramagnetic resonance (EPR) spectroscopy. MDPI 2018-08-21 /pmc/articles/PMC6165250/ /pubmed/30134602 http://dx.doi.org/10.3390/ma11091494 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Caputo, Giuseppe
Bonadies, Irene
Migliaccio, Ludovico
Caso, Maria Federica
Pezzella, Alessandro
Eumelanin Coating of Silica Aerogel by Supercritical Carbon Dioxide Deposition of a 5,6-Dihydroxyindole Thin Film
title Eumelanin Coating of Silica Aerogel by Supercritical Carbon Dioxide Deposition of a 5,6-Dihydroxyindole Thin Film
title_full Eumelanin Coating of Silica Aerogel by Supercritical Carbon Dioxide Deposition of a 5,6-Dihydroxyindole Thin Film
title_fullStr Eumelanin Coating of Silica Aerogel by Supercritical Carbon Dioxide Deposition of a 5,6-Dihydroxyindole Thin Film
title_full_unstemmed Eumelanin Coating of Silica Aerogel by Supercritical Carbon Dioxide Deposition of a 5,6-Dihydroxyindole Thin Film
title_short Eumelanin Coating of Silica Aerogel by Supercritical Carbon Dioxide Deposition of a 5,6-Dihydroxyindole Thin Film
title_sort eumelanin coating of silica aerogel by supercritical carbon dioxide deposition of a 5,6-dihydroxyindole thin film
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6165250/
https://www.ncbi.nlm.nih.gov/pubmed/30134602
http://dx.doi.org/10.3390/ma11091494
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