Synthesis of bifunctional fluorescent nanohybrids of carbon dots–copper nanoclusters via a facile method for Fe³⁺ and Tb³⁺ ratiometric detection

Abstract

In this work, a dual–emission ratiometric fluorescent probe of carbon dots–copper nanoclusters (CDs–Cu NCs) nanohybrids with bifunctional feature was successfully assembled through mechanical mixing. In which CDs were synthesized using...

Carbon dot/inorganic nanomaterial composites

“…Based on the combination of the N-CDs probe and AuNPs, the fluorescence sensor with high selectivity for thiram has high sensitivity. Lin et al 88 constructed a two-ion detection platform using the aggregation-induced fluorescence quenching caused by electrostatic binding between Fe 3+ and CuNCs and the fluorescence enhancement caused by FRET and photoinduced electron transfer (PET) of CDs induced by Tb 3+ addition. The zeta potential clearly shows the charge change of CDs and CuNCs after recombination, proving that the two are connected by electrostatic interaction between the negative charge on the CD surface and the positive control on the CuNC surface (Fig.…”

Multi-applications of carbon dots and polydopamine-coated carbon dots for Fe3+ detection, bioimaging, dopamine assay and photothermal therapy

“…It is an important component of hemoglobin, myoglobin, cytochrome A and some respiratory enzymes, which plays an irreplaceable role in oxygen transport and metabolism [7,8]. Fe 3+ deficiency can cause some disorders such as anemia, Parkinson's disease, Alzheimer's disease, and irreversibly affect children's intellectual development [9]. Furthermore, excess Fe 3+ is toxic and leads to severe adverse effect such as liver and kidney damage (hemochromatosis), neurodegenerative, osteoporosis and cancers [10].…”

Construction of a copper nanocluster/MnO2 nanosheet-based fluorescent platform for butyrylcholinesterase activity detection and anti-Alzheimer's drug screening

“…More importantly, CuNCs present outstanding photostability and excellent biosafety. [31][32][33][34] To date, numerous CuNC-based fluorescence methods have been constructed for the sensitive determination of metal ions (Hg 2+ , Pb 2+ , etc. ), 35,36 anions (S 2À , NO 2 À , etc.…”