Green synthesis of carbon nanodots for direct and rapid determination of theophylline through fluorescence turn on–off strategy

Facile fabrication of boron and nitrogen co-doped carbon dots for “ON–OFF–ON” fluorescence sensing of Al3+ and F− ions in water samples

“…In contrast, fluorescence-based methods have gained a lot of attention concerning the sensing capability owing to their simple operation, greater response, and fast detection. 10–13…”

“…In contrast, uorescence-based methods have gained a lot of attention concerning the sensing capability owing to their simple operation, greater response, and fast detection. [10][11][12][13] Carbon dots (CDs), a carbonaceous nanomaterial, have gained much interest in recent years due to their distinctive features, including water solubility, physical and chemical stability, and ease of surface modication. [14][15][16] These advantages make CDs excellent candidates for applications in cell imaging, catalysis, drug targeting, biosensing, and energy storage applications.…”

Guava-fruit based synthesis of carbon quantum dots for spectrofluorometric quantitative analysis of risperidone in spiked human plasma and pharmaceutical dosage forms

“…Carbon quantum dots (CQDs) are uorescent semiconductor nanoparticles that have recently been used in pharmaceutical and biomedical analysis by measuring the enhancement or quenching of the uorescent signal from the CQDs as a result of an interaction of the CQDs with the compound of interest. [45][46][47][48][49][50] Originally, CQDs were prepared from primary chemical precursors such as citric acid, polyethyleneimine, zinc oxide, phenolic resins, and ethylene glycol, which were incompatible with concepts of green analytical chemistry. [51][52][53][54] Therefore, scientists have recently focused on nding environmentally friendly precursors from nature as substitutes, such as biomass wastes and plant-derived pharmaceuticals, because they are environmentally friendly, widely available, biocompatible, and rich in low-cost renewable raw materials (rich in C, H, N, and O atoms) such as polysaccharides, proteins, nucleic acids, and phospholipids.…”

One-Pot Synthesis of Dual Color-Emitting CDs: Numerical and Experimental Optimization towards White LEDs

“…For the fabrication of CD-based color-converting components, it is thus necessary to have carbonaceous nanoparticles emitting with high efficiency in the regions of blue, green and red [ 12 , 13 , 14 , 15 , 16 , 17 ]. Furthermore, such CDs need to be uniformly incorporated into solid-state matrices without relevant degradation of their spectroscopic characteristics [ 18 , 19 , 20 ].…”