Journal
ANALYTICAL BIOCHEMISTRY
Volume 332, Issue 2, Pages 253-260Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ab.2004.05.051
Keywords
silver nanoparticle; thiolate boronic acid; dextran; glucose; aggregation; surface-enhanced fluorescence (SEF); complexation; absorbance spectroscopy
Funding
- NCRR NIH HHS [RR-08119, P41 RR008119] Funding Source: Medline
Ask authors/readers for more resources
Synthesized thiolate boronic acid was found to complex with both a polysaccharide (dextran) and a monosaccharide (glucose) with similar affinities but displayed more affinity with dextran than with glucose when capped as a ligand on silver nanoparticle. Coupling on multiple sites of dextran, the silver particles were aggregated. The aggregated particles displayed a decrease of absorbance at 397 nm and an increase at 640 nm. Luminescence intensity displayed an upward deviation increase with the concentration of dextran. The luminescence spectral change was ascribed to surface-enhanced fluorescence by the enhanced field from the aggregated metallic particles. (C) 2004 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available