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Surface-enhanced Raman scattering study of the interaction of red dye alizarin with ovalbumin

✍ Scribed by M. V. Cañamares; P. Sevilla; S. Sanchez-Cortes; J. V. Garcia-Ramos

Publisher
Wiley (John Wiley & Sons)
Year
2006
Tongue
English
Weight
211 KB
Volume
82
Category
Article
ISSN
0006-3525

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✦ Synopsis

Abstract

Surface‐enhanced Raman spectroscopy and UV–vis absorption spectroscopy were employed to study the interaction between the red dye alizarin and ovalbumin (OA), to check the effect of binding media usually employed when applying this pigment in painting practices based on egg tempera. The protein/alizarin interaction is rather weak and takes place through the alizarin neutral form, which interacts with exposed hydrophobic moieties of OA. This effect is of great interest from an artistic point of view because the dye color can be modified. Furthermore, the interaction with alizarin could induce a change in the protein structure, leading to a denaturation and subsequent aggregation. © 2006 Wiley Periodicals, Inc. Biopolymers 82: 405–409, 2006

This article was originally published online as an accepted preprint. The “Published Online” date corresponds to the preprint version. You can request a copy of the preprint by emailing the Biopolymers editorial office at [email protected]

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