Rational hydrothermal synthesis of graphene quantum dots with optimized luminescent properties for sensing applications

Graphene Quantum Dots – Hydrothermal Green Synthesis, Material Characterization and Prospects for Cervical Cancer Diagnosis Applications: A Review

“…Consequently, hydrothermal pretreatment of this timber waste selectively removes the amorphous cellulose and yields crystalline nanocellulose. The latter, on hydrothermal treatment, undergoes a reaction very similar to the aforementioned one and yields GQDs [111–114] …”

“…The latter, on hydrothermal treatment, undergoes a reaction very similar to the aforementioned one and yields GQDs. [111][112][113][114] Hydrothermal treatment of citric acid in basic conditions propels the latter to self-assemble into sheet-like structures, which involve intermolecular dihydroxylation on condensation reactions to give away nanocrystalline GQDs. Nitrogen-containing bases such as urea, dimethylamine, hexamethylene tetraamine, and others act as reducing agents as well as dopants.…”

Bioactive Graphene Quantum Dots Based Polymer Composite for Biomedical Applications

“…Recently, due to the simplicity, cost-effectiveness, and one-step synthesis route method of the hydrothermal method, this method has been considered [ 25 ]. The hydrothermal method [ 97 , 98 , 99 ], microwave method [ 100 , 101 , 102 ], electrochemical oxidation method [ 103 , 104 , 105 ], the ultrasonic method [ 103 , 106 ], and biosynthesis methods [ 107 , 108 ] are among the methods used for bioactive GQDs synthesis based on top-down and bottom-up processes.…”

Acid-regulated boron–nitrogen codoped multicolor carbonized polymer dots and applications for pH sensing and trace water detection

“…[24][25][26][27][28] To facilitate the dehydration and carbonization processes of CPDs, researchers have treated the corresponding precursors with acid, which alleviates the problems of high temperatures and long hydrothermal reaction times. 29,30 Moreover, heteroatomic doping can change the electron configurations of CPDs and introduce abundant functional groups, which changes the surface states and thus also the luminescence centers. [31][32][33] As a result of heteroatomic doping, nitrogen doping can significantly improve the fluorescence quantum yields of CPDs, and boron is also often used as a dopant to regulate the fluorescence performance of CPDs.…”