Electrochemical synthesis of fluorescence-enhanced carbon dots with multicolor emission via surface nitrogen and sulfur modulation for information encryption applications

Abstract

Elucidating the mechanism of surface nitrogen and sulfur modulation in multicolor carbon dots via electrochemical methods for information encryption applications.

An overview on animal/human biomass-derived carbon dots for optical sensing and bioimaging applications

“…59 The first electrochemical synthesis of CDs (average diameter: 2.8 ± 0.5 nm) was reported in 2007, where multiwalled carbon nanotube (MWCNT)-coated carbon paper was used as the working electrode together with Pt-wire (counter electrode) and Ag/AgClO 4 (reference electrode). 60 In a recent report, Zhao et al 61 synthesized N,S-CDs through an electrochemical method for the fabrication of a flexible fluorescent film and information encryption application. An optimized potential (60 V, 3 h) was applied on two graphite electrodes (anode and cathode) together with phenylenediamine (N source) and thioacetamide (S source) to yield red/blue/green-emitting N,S-CDs.…”

Advances in Carbon Dot-Based Ratiometric Fluorescent Probes for Environmental Contaminant Detection: A Review

“…The multiple emissive centers on the surface of CDs contribute to their unique emission peaks, providing a foundation for precise and selective detection of various contaminants [ 28 , 29 ]. Additionally, factors like pH [ 30 ], solvent polarity [ 31 ], and surface functionalization [ 32 ] can modulate the fluorescence intensity of CDs, further expanding their applicability in environmental sensing. CDs’ dual emission peaks serve as an intrinsic self-calibration mechanism, offering precise and selective detection of various contaminants [ 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 ].…”