期刊
TETRAHEDRON LETTERS
卷 51, 期 33, 页码 4331-4335出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2010.06.041
关键词
Photoinduced electron transfer; Surface plasmon resonance; Aza-crown ether acridinedione; Aggregation; Metal ions
资金
- University of Madras
The aza-crown ether acridinedione-functionalized gold nanoparticles (ACEADD-GNPs) 6 have been synthesized and investigated as a fluorescent chemosensor for metal ions A blue shift along with an intensity enhancement of emission and color change are observed in the presence of both Ca2+ and Mg2+ ions The enhanced fluorescence intensity is attributed to the photoinduced electron transfer (PET) suppression through space and color change of the suspension from red to blue due to shifted surface plasmon resonance (SPR) with aggregation of nanoparticles by the sandwich complexation (c) 2010 Elsevier Ltd All rights reserved
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