Jih Ru Hwu, Chii Shyang Yau, Fu Yuan Tsai and Shwu-Chen Tsay
Single-strand cleavage of DNA in a sodium phosphate buffer at pH 7.4 has been accomplished by photolysis of various arylhydrazines or diphenyl arylhydrazidophosphates with 312 nm UV light; the new processes involve the generation of HO˙ and singlet oxygen, respectively.