Issue 48, 2024, Issue in Progress

N-doped carbon quantum dots for the selective detection of OCl ions, bioimaging, and the production of Fe3O4 nanoparticles utilized in the synthesis of substituted imidazole

Abstract

Nitrogen-doped quantum dots (NCQD) were synthesized by solvothermal means using o-phenylenediamine and L-tartaric acid. The resultant NCQD produced a high quantum yield (40.3%) and a vivid green fluorescence. They were about 6 nm in size. The NCQD is useful in HeLa cell bioimaging investigations and is used for the fluorescence detection of OCl ions. The quantum dots' Limit of Detection (LoD) was discovered to be 40 nM. Additionally, cytotoxicity testing was conducted, and we found out that HeLa cells safely endured up to 6.5 mg ml−1 of NCQD. Furthermore, NCQDs were employed to synthesize Fe3O4 nanoparticles, with the quantum dots acting as a reducing and stabilizing agent. The nanoparticles exhibited remarkable catalytic activity towards organic processes due to their size of 11 nm and surface area of 67.360 m2 g−1. Excellent yields of tri-substituted imidazole derivatives were produced using Fe3O4 nanoparticles as nanocatalysts in a solvent-free method.

Graphical abstract: N-doped carbon quantum dots for the selective detection of OCl− ions, bioimaging, and the production of Fe3O4 nanoparticles utilized in the synthesis of substituted imidazole

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Article information

Article type
Paper
Submitted
07 Sep 2024
Accepted
31 Oct 2024
First published
06 Nov 2024
This article is Open Access
Creative Commons BY license

RSC Adv., 2024,14, 35448-35459

N-doped carbon quantum dots for the selective detection of OCl ions, bioimaging, and the production of Fe3O4 nanoparticles utilized in the synthesis of substituted imidazole

N. P. Hota and S. Kulathu Iyer, RSC Adv., 2024, 14, 35448 DOI: 10.1039/D4RA06474G

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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