A colorful bunch: A series of fluorescentprobes designed on the basis of fluorescence quenching caused by an excitonic interaction contain different dye moieties and fluoresce in various colors upon hybridization with their target nucleicacid. The picture shows simultaneous fluorescence in three colors in the nucleus of a cell containing an excess of three different microRNA strands. Left: differential
A Programmed DNA Marker Based on Bis(4‐ethynyl‐1,8‐naphthalimide) and Three‐Methane‐Bridged Thiazole Orange
作者:Yueyuan Mao、Keyin Liu、Liang Chen、Xinhua Cao、Tao Yi
DOI:10.1002/chem.201502874
日期:2015.11.9
Two large conjugated naphthalimide derivatives with or without three‐methane‐bridgedthiazoleorange (TO3; i.e., compounds 1 a and 2 a, respectively) were designed and synthesized. The fluorescence of the naphthalimide group in compound 1 a at λ=532 nm initially decreased and that for the TO3 group at λ=655 nm increased sequentially upon adding Salmon testes (St) DNA. In contrast, without the TO3 group