Like likes like! A novel fluorescent C2‐symmetric guanosine‐based dinucleoside has been engineered by chemical ligation of two guanosine units with a biocompatible dansyl tag. The nucleoside exhibits high selectivity for c‐myc G‐quadruplex DNA through fluorescence enhancement over duplex DNA and other promoter G‐quadruplexes (see scheme). It stains the nucleus preferentially, arrests the cell cycle
Self-complementary hydrogen-bond interactions of guanosine: a hub for constructing supra-amphiphilic polymers with controlled molecular structure and aggregate morphology
作者:Qian Xiao、Fei Song、Wu-Cheng Nie、Xiu-Li Wang、Yu-Zhong Wang
DOI:10.1039/c8sm02172d
日期:——
A supra-amphiphilic polymer (SAP) with controlled molecular structures is constructed, in this work, via self-complementary hydrogen bonding of guanosine groups between a hydrophilic block, poly(N-isopropylacrylamide), and a hydrophobic block, poly(ε-caprolactone). By simply changing the mixing ratio of the guanosine-capped hydrophilic and hydrophobic blocks, a series of SAPs with tailored nanostructures