Issue 98, 2016

Circularly polarized luminescence reveals interaction between commercial stains and protein matrices used in paintings

Abstract

Chemistry is at the front line of preservation of work of arts. Reliable but simple protocols for localizing proteins in art samples are necessary to guide conservators in their work. In this article, we investigated the interaction between some commonly used fluorescent stains and protein-based paint binders. Beside fluorescence, we used for the first time circularly polarized luminescence (CPL) as a tool to reveal interactions in complex matrices relevant for the field of cultural heritage. We show that, in such cases, CPL provides unique information compared to more common techniques such as fluorescence and circular dichroism. These findings will contribute to provide a rational base to empirical observations in staining procedures, even in arduous and complex cases.

Graphical abstract: Circularly polarized luminescence reveals interaction between commercial stains and protein matrices used in paintings

Supplementary files

Article information

Article type
Paper
Submitted
07 jun 2016
Accepted
30 sep 2016
First published
03 okt 2016

RSC Adv., 2016,6, 96176-96181

Circularly polarized luminescence reveals interaction between commercial stains and protein matrices used in paintings

S. Orsini, F. Zinna, T. Biver, L. Di Bari and I. Bonaduce, RSC Adv., 2016, 6, 96176 DOI: 10.1039/C6RA14795J

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