Published in 3 Biotech
In the present study, Carbon Quantum Dots (CQDs) were synthesized from Phoenix dactylifera (Date palm fruit) using microwave-assisted pyrolysis and were characterized for its various properties. The synthesized CQD sample exhibited a narrow absorbance peak at 270 nm in UV–Vis spectrum that indicated generation of narrow sized particles. The FTIR an...
Published in Food chemistry
A magnetic fluorescence probe was fabricated by coating carbon quantum dots-doped molecularly imprinted polymers (MIPs) layers on the surface of Fe3O4 particles (MFMP) for detection of N-acyl homoserine lactones (AHLs) signaling molecules. N-Z-L-homoserine lactone molecular was used as the template to prepare AHLs MIP layers, employing MAA and HEMA...
Published in Nano Today
Preventing the trajectory of human coronaviruses including the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic could rely on the sprint to design a rational roadmap using breakneck strategies to counter its prime challenges. Recently, carbon quantum dots (CQDs), zero-dimensional (0D) carbon-based nanomaterials, have emerged as...
Published in Microchimica Acta
Carbon dots and gold nanoclusters co-encapsulated by zeolitic imidazolate framework-8 (CDs/[email protected]) have been obtained at room temperature. The composite has been applied to the ratiometric fluorescence determination of mercury(II). The composite shows fluorescence emission maxima at 440 and 640 nm under 360 nm excitation, due to the CDs and Au...
Published in Applied Physics A
A simple synthesis of carbon quantum dots (CQDs) from green sources has attracted increasing attention nowadays. Here we report the synthesis of water-soluble fluorescent carbon quantum dots from mandarin juice by hydrothermal method. When excited at 364 nm, CQDs give maximum fluorescence at 462 nm. As verified from Transmission Electron Microscopy...
Published in Journal of Polymer Research
Low level of dopamine (DA) in human brain may lead to neurological diseases, therefore, detection of DA is necessary. This study aims to develop 2 types of DA biosensor, i.e., electrochemical and fluorescent biosensors based on conducting polymer and quantum dot composite. The polyaniline/carbon quantum dots (PANi/CQDs) composite was prepared and c...
Published in Microchimica Acta
Carbon quantum dots co-doped with iron and nitrogen ([email protected]) were synthesized by using Passiflora edulis Sims (P. edulis) as a precursor. The [email protected] exhibit outstanding peroxidase-mimetic activity owing to successful doping with iron resulting in a behavior similar to that of iron porphyrins. In the presence of H2O2, the [email protected] catalyze the oxid...
Published in SN Applied Sciences
Carbon dots (CDs) were successfully derived from water hyacinth leaves and the binary composite was achieved by incorporating CDs with g-C3N4 through hydrothermal treatment. The average particle size of CDs was found to be 3.1 nm and a blue-green fluorescence was emitted under the UV light irradiation. Both of the composites loaded with 20 wt.% (20...
Published in SN Applied Sciences
Echinops persicus is a species of Echinops that can be found in Europe and western Asia especially in Iran. In this paper, the phytochemical properties of Echinops persicus were thoroughly investigated and studied. In this way, total amounts of flavonoid, tannins, phenols, carotenoids, saponins, alkaloids, and anthocyanin were measured by various a...
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
The detection and differentiation of tetracyclines (TCs) has received increasing attention due to the severe threat they pose to human health and the ecological balance. A dual-channel fluorescence sensor array based on two carbon quantum dots (CDs) was fabricated to distinguish between four TCs, including tetracycline (TC), oxytetracycline (OTC), ...
