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An Aqueous Route to Multicolor Photoluminescent Carbon Dots Using Silica Spheres as Carriers
Author(s) -
Liu Ruili,
Wu Dongqing,
Liu Shuhua,
Koynov Kaloian,
Knoll Wolfgang,
Li Qin
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200900652
Subject(s) - photoluminescence , materials science , carbon fibers , aqueous solution , biocompatibility , nanometre , nanotechnology , formaldehyde , chemical engineering , polymer , nanocomposite , organic chemistry , chemistry , composite material , composite number , optoelectronics , engineering , metallurgy
Carbon lights up : A facile chemical method yields multicolor photoluminescent carbon dots derived from polymer/silica nanocomposites, which were prepared using surfactant‐modified silica spheres as carriers and resols (phenol/formaldehyde resins) as carbon precursor (see picture). The surface‐passivated carbon dots show good biocompatibility as potential bioimaging agents offering nanometer‐scale resolution.