Journal
NANOMATERIALS
Volume 12, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/nano12060898
Keywords
CDs; hybrid CDs; doped CDs; synthesis; characterization; biomedical; bioimaging; drug delivery; neuron tissue engineering
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This article reviews doped carbon dots (CDs) with organic and inorganic atoms and molecules, and their applications in the biomedical field, including bioimaging, biosensor applications, neuron tissue engineering, drug delivery, and cancer therapy. The article also discusses future research directions and the potential of hybrid formats of CD-based materials.
Carbon dots (CDs) are a novel type of carbon-based nanomaterial that has gained considerable attention for their unique optical properties, including tunable fluorescence, stability against photobleaching and photoblinking, and strong fluorescence, which is attributed to a large number of organic functional groups (amino groups, hydroxyl, ketonic, ester, and carboxyl groups, etc.). In addition, they also demonstrate high stability and electron mobility. This article reviews the topic of doped CDs with organic and inorganic atoms and molecules. Such doping leads to their functionalization to obtain desired physical and chemical properties for biomedical applications. We have mainly highlighted modification techniques, including doping, polymer capping, surface functionalization, nanocomposite and core-shell structures, which are aimed at their applications to the biomedical field, such as bioimaging, bio-sensor applications, neuron tissue engineering, drug delivery and cancer therapy. Finally, we discuss the key challenges to be addressed, the future directions of research, and the possibilities of a complete hybrid format of CD-based materials.
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