Comparison of carbon dots prepared from collagen peptides using conventional hydrothermal and microwave methods

Abstract

Fish scale collagen peptide was used as a precursor to prepare carbon dots using conventional hydrothermal (CDs-HT) and microwave methods (CDs-MW). The optical properties of CDs prepared using the two...

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

“…172 This unique phenomenon was explained by the generation of ˙OH radicals, which effectively destroyed the surface emissive centers in N-CDs (responsible for their emission) rather than the nuclear states (mainly cause absorption). The recently reported doped CDs from crayfish shell, 186,187 milk powder, 200 fish scales, 231 and fish scale collagen peptides 234 also showed excellent photo-stability. The photo-stability of animal/human biomass-derived CDs was also demonstrated for different period of times in air 134,150,172,174,183,247 and even after storage for many days/months/year under ambient conditions.…”

“…Fish scales of grass carp, [222][223][224] crucian carp, 225 Lethrinus lentjan, 226 Ctenopharyngodon idella, 227 Dicentrarchus labrax, 228,229 Labeo rohita, 230 and silver carp 231 have been employed in the synthesis of heteroatom-containing CDs using the HT or MW synthetic protocol (Table 1). Besides sh scale, other sh byproducts such as shark cartilage, 232 carp roe, 233 and sh scale collagen peptides 234 have also been employed to produce doped CDs. Table 1 clearly indicates that the QY of sh scale-derived doped CDs can reach up to 19.92%.…”

“…7a), which is ascribed to the higher carbonization and smaller size of N-CDs. 234 5.1.10 Animal wool and hair as a carbon source. Sheep wool [235][236][237] and pig hair 237 have also been used for the synthesis of doped CDs via different synthetic processes (Table 1), with the N,S-CDs obtained from the HT treatment of sheep wool showing a high QY (25.6%).…”

Facile synthesis of the SnTe/SnSe binary nanocomposite via a hydrothermal route for flexible solid-state supercapacitors

“…Among other methods, the hydrothermal method is preferred as it provides control over the crystal size, morphology, high purity and versatility and is an energy-efficient process. 27 A. M. Zardkhoshoui et al developed the NiGa 2 S 4 -rGO pseudocapacitive electrode material via a hydrothermal method, and it possessed a C s of 2124 F g −1 with a 73% retention of capacitance. 28 S. Arunpandiyan et al fabricated the ZnO/NiO:rGO nanocomposite through a hydrothermal route and demonstrated a C s of 622.3 F g −1 in 1 M potassium hydroxide.…”

“…27 A. M.Zardkhoshoui et al developed the NiGa 2 S 4 -rGO pseudocapacitive electrode material via a hydrothermal method, and it possessed a C s of 2124 F g −1 with a 73% retention of capacitance. 28 S. Arunpandiyan et al fabricated the ZnO/NiO:rGO nanocomposite through a hydrothermal route and demonstrated a C s of 622.3 F g −1 in 1 M potassium hydroxide.…”