Molecular "light switch" for G-quadruplex DNA: cycling the switch on and off. Author: Shi S, Zhao J, Gao X, Lv C, Yang L, Hao J, Huang H, Yao J, Sun W, Yao T, Ji L. Affiliation: Department of Chemistry, Tongji University, Shanghai, China. shishuo@tongji.edu.cn Conference/Journal: Dalton Trans. Date published: 2012 May Other: Volume ID: 41 , Issue ID: 19 , Pages: 5789-93 , Word Count: 31 We report a new G-quadruplex DNA "light switch", where the light switch can be cycled on and off through the successive introduction of G-quadruplex DNA and [Fe(CN)(6)](4-) ions. PMID: 22488166