The restoration of artworks often involves solvents which have toxic properties. Now researchers have succeeded for the first time in creating a non-toxic and sustainable cleaning agent for paintings.
Scientists at the Technical University of Munich (TUM) Research Neutron Source Heinz Maier-Leibnitz (FRM II) investigated the structure of the agent, referred to as an organogel. The paper is published in the Journal of Colloid and Interface Science.
Artistically valuable paintings are irreplaceable, unique works which should be preserved for future generations. However, with the passing of the years they tend to become dull. The reason: A patina of dust, soot, aggressive air pollutants and microorganisms makes the surfaces of the painting look dark and muted.
“In order to remove the patina from water-sensitive surfaces, restorers usually use liquid organic solvents which are however hazardous to humans and are also a burden on the environment,” says Prof. Piero Baglioni, chemist at the University of Florence. Ever since beginning his studies he has worked on the restauration of artworks.
Together with an international research team, the scientist has now developed a cleaning