S. Sortino, G. De Guidi, L. L. Costanzo, S. Sortino and J. C. Scaiano
Copper(II), at very low levels of concentration, modulates the distribution of tolmetin stable photoproducts as well as inhibits the DNA cleavage photoinduced by the drug, via a highly efficient electron transfer process with the main transient species generated in the tolmetin photolysis.