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Nanoscale Control of Near‐Infrared Fluorescence Enhancement Using Au Nanoshells
Author(s) -
Bardhan Rizia,
Grady Nathaniel K.,
Halas Naomi J.
Publication year - 2008
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200800405
Subject(s) - fluorescence , nanoscopic scale , indocyanine green , nanoshell , nanotechnology , infrared , materials science , molecule , chemistry , optics , nanoparticle , physics , organic chemistry
The fluorescence enhancement of Indocyanine Green (ICG) molecules as a function of distance from the surface of Au nanoshells (Au‐NS; see image) is examined. A decrease in enhanced fluorescence of ICG with increasing distance from the Au‐NS surface is observed by growing silica spacer layers of varying thicknesses to control the distance between ICG molecules and Au‐NS surface.