6533b827fe1ef96bd12865c3

RESEARCH PRODUCT

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

Maria Federica CasoAlessandro PezzellaLudovico MigliaccioIrene BonadiesGiuseppe Caputo

subject

eumelaninsMaterials science02 engineering and technologyengineering.material010402 general chemistrylcsh:Technology01 natural sciencesArticlesupercritical CO2law.inventionCoatingsupercritical CO<sub>2</sub>lawGeneral Materials ScienceThin filmsilica aerogellcsh:MicroscopyElectron paramagnetic resonancelcsh:QC120-168.85EumelaninSupercritical carbon dioxidelcsh:QH201-278.5lcsh:TAerogel021001 nanoscience & nanotechnologySupercritical fluid0104 chemical sciencesPolymerizationChemical engineeringlcsh:TA1-2040engineeringlcsh:Descriptive and experimental mechanicsMaterials Science (all)lcsh:Electrical engineering. Electronics. Nuclear engineeringSupercritical adsorptionlcsh:Engineering (General). Civil engineering (General)0210 nano-technologylcsh:TK1-9971

description

Eumelanin integration in silica aerogel (SA) was achieved via supercritical adsorption of 5,6-dyhydroxyindole (DHI) from CO2. 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&ndash

yearjournalcountryeditionlanguage
2018-08-21Materials
https://doi.org/10.3390/ma11091494