Real-time detection of DNA cleavage induced by [M(2,2′-bipyridine)2(NO3)](NO3) (M = Cu(II), Zn(II) and Cd(II)) complexes using linear dichroism technique

Decrease of linear dichroism according to the cleavage of DNA by [M(2,2′-bipyridine)2(NO3)](NO3) complexes.