Over time these react with negatively charged components of oil called fatty acids, which have been severed from the rest of ...

In terms of Botticelli’s typical pictorial technique, Apostle said “he has switched it up” here, blending tempera and oil ... white paint is used copiously throughout the composition ...

"We believe this work will stimulate robust work to determine the nanoscale composition of oil paints and foster the development of art preservation and conservation practices." ...