Molecular folding induced nanogold aggregation

…, P Ashokkumar, VT Ramakrishnan, P Ramamurthy

Index: Velu, Ranganathan; Ashokkumar, Pichandi; Ramakrishnan, Vayalakkavoor T.; Ramamurthy, Perumal Tetrahedron Letters, 2010 , vol. 51, # 23 p. 3102 - 3105

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Citation Number: 5

Abstract

Bisacridinedione-functionalized gold nanoparticles (bisADD-GNPs) were prepared and characterized. BisADD is a flexible acyclic moiety and a specific Ca2+ 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 ...