作者:Ranganathan Velu、Pichandi Ashokkumar、Vayalakkavoor T. Ramakrishnan、Perumal Ramamurthy
DOI:10.1016/j.tetlet.2010.04.023
日期:2010.6
BisADD is a flexible acyclic moiety and a specificCa2+ sensor. Signaling of the binding events is achieved by the cation-induced folding of the bisADD-GNPs and the resultant fluorescence enhancement and visual color change are attributed to the suppression of photoinduced electron transfer (PET) through space and nano-Au aggregation. The selective binding of Ca2+ is clear from steady state fluorescence