Title of article
Molecular folding induced nanogold aggregation
Author/Authors
Velu، نويسنده , , Ranganathan and Ashokkumar، نويسنده , , Pichandi and Ramakrishnan، نويسنده , , Vayalakkavoor T. and Ramamurthy، نويسنده , , Perumal، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2010
Pages
4
From page
3102
To page
3105
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 aggregation. The selective binding of Ca2+ is clear from steady state fluorescence and TEM techniques.
Keywords
Bisacridinedione , surface plasmon resonance (SPR) , Fluorescence enhancement , photoinduced electron transfer , Nano-Au aggregation
Journal title
Tetrahedron Letters
Serial Year
2010
Journal title
Tetrahedron Letters
Record number
1872276
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