Journal
ADVANCES IN COLLOID AND INTERFACE SCIENCE
Volume 275, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.cis.2019.102046
Keywords
Carbon dots; Green synthesis; Bioimaging; Drug/gene delivery; Photocatalysis; Sensing
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Funding
- KU-Research Professor Program of Konkuk University (Seoul, Republic of Korea)
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Fluorescent carbon dots (CDs) are an emerging class of nanomaterials in the carbon family. There are various inexpensive and renewable resources that can be used to synthesize green CDs, which have received immense attention from researchers because of their improved aqueous solubility, high biocompatibility, and eco-friendly nature compared with chemically derived CDs. Additional surface passivation is not required, as heteroatoms are present on the surface of green CDs in the form of amine, hydroxyl, carboxyl, or thiol functional groups, which can improve their physicochemical properties, quantum yield, and the probability of visible light absorption. Green CDs have potential applications in the fields of bioimaging, drug/gene delivery systems, catalysis, and sensing. Since their discovery, there have been several review articles that describe the synthesis of green CDs and some of their applications. However, there are no review articles describing the synthesis and complete applications of green CDs. Here, we provide detailed information regarding their synthesis and applications based on the available literature. In addition, we discuss some of the less explored applications of green CDs and the challenges that remain to be overcome. (C) 2019 Elsevier B.V. All rights reserved.
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