Lead Soap Formation in Traditional Oil PaintingsLead carboxylate (soap) formation in traditional oil paintings occurs when lead-containing pigments react with fatty acids in the oil medium. Lead soaps can lead to protrusions and increased transparency of the paint film and are present in hundreds of works of art. We are studying in the dynamics and mechanism of soap formation by Solid State NMR, NMR-MOUSE, and XANES. This project is in collaboration with the Metropolitan Museum of Art, University of Delaware and the scientists at Brookhaven National Laboratory.
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Cytochrome P450CYP2S1 is a P450 enzyme that exclusively reduces substrates compared to most P450s that carry out oxidation of substrates. The goal of this project is to identify the role of key amino acids that contribute to the unique chemistry of this enzyme. We are also investigating the role of important residues in Cytochrome P450 BM3.
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