Silvia Centeno from the Met Museum has been invited by the REACT grad student committee to give a seminar. From the Met museum: "Silvia A. Centeno focuses on artists' materials and techniques and deterioration processes in paintings, photographs, and works of art on paper. She received a PhD in chemistry from Universidad Nacional de La Plata, Argentina, and started at The Met as an L. W. Frohlich Fellow to study unusual gilding techniques in Pre-Columbian metalwork. She has published and lectured on a number of topics, including pigment- and platinum-based photographic processes, daguerreotypes, heavy-metal soap deterioration in oil paintings, modern paints, early lithographic inks, and Renaissance paintings. She currently leads interdisciplinary team projects working on the elucidation of nineteenth-century photographic processes and on the deterioration of oil paintings."

https://www.metmuseum.org/about-the-met/conservation-and-scientific-research/scientific-research/meet-staff