Publication
Title
Photochemistry of Artists' Dyes and Pigments : towards better understanding and prevention of colour change in works of art
Author
Abstract
The absorption of light gives a pigment its colour and its reason for being, but it also creates excited states, that is, new molecules with an energy excess that can be dissipated through degradation pathways. Photodegradation processes provoke long-term, cumulative and irreversible colour changes (fading, darkening, blanching) of which the prediction and prevention are challenging tasks. Of all the environmental risks that affect heritage materials, light exposure is the only one that cannot be controlled without any impact on the optimal display of the exhibit. Light-induced alterations are not only associated with the pigment itself but also with its interactions with support/binder and, in turn, are further complicated by the nature of the environmental conditions. In this Minireview we investigate how chemistry, encompassing multi-scale analytical investigations of works of art, computational modelling and physical and chemical studies contributes to improve our prediction of artwork appearance before degradation and to establish effective preventive conservation strategies.
Language
English
Source (journal)
Angewandte Chemie: international edition in English. - Weinheim
Publication
Weinheim : Wiley-v c h verlag gmbh , 2018
ISSN
1433-7851
0570-0833
Volume/pages
57 :25 (2018) , p. 7324-7334
ISI
000434949200006
Pubmed ID
29696761
Full text (Publisher's DOI)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 07.09.2018
Last edited 20.09.2021
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