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Blue Luminescent Graphene Quantum Dots by Photochemical Stitching of Small Aromatic Molecules: Fluorescent Nanoprobes in Cellular Imaging
Author(s) -
Gokhale Rohan,
Singh Pooja
Publication year - 2014
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.201300294
Subject(s) - fluorescence , quantum dot , photochemistry , luminescence , graphene , ultraviolet , materials science , image stitching , molecule , radical , biological imaging , chemistry , nanotechnology , optoelectronics , optics , physics , organic chemistry
Blue fluorescent graphene quantum dots (GQDs) are synthesized from small haloaromatic molecules by laser photochemistry. The process involves a bottom‐up photochemical stitching mechanism of the free radicals generated by irradiation of ultraviolet photons ( λ = 248 nm) on o ‐dichlorobenzene. The GQDs are further demonstrated to be of importance as fluorescent nanoprobes in bioimaging of cells.