Green chemistry-induced carbon nanoparticles with antioxidant and antibacterial assay

Parul Singh; Hemant Singh; Stuti Upadhyay; Aniruddha Dan; Prasanna Kumari B.; Mukesh Dhanka; Jhuma Saha

doi:10.1117/12.3021289

20 June 2024 Green chemistry-induced carbon nanoparticles with antioxidant and antibacterial assay

Parul Singh, Hemant Singh, Stuti Upadhyay, Aniruddha Dan, Prasanna Kumari B., Mukesh Dhanka, Jhuma Saha

Author Affiliations +

Proceedings Volume 13006, Biomedical Spectroscopy, Microscopy, and Imaging III; 130060P (2024) https://doi.org/10.1117/12.3021289
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

Carbon nanoparticles (CNPs) are among the most extensively researched and utilized nanomaterials due to a combination of unique optical and electronic properties. This work proposes an inexpensive and time-efficient green synthesis method for synthesizing fluorescent CNPs from the leaf extracts of Murraya koenigii, following a microwave-assisted approach. This work highlights the successful synthesis of CNPs using a single organic solvent throughout the procedure, without the use of any hazardous chemicals. They offer great dispersibility with water, ranging from 20-30 nm in size, as confirmed by scanning electron microscopy (SEM), with the maximum height observed at 1.92 nm, as confirmed by atomic force microscopy (AFM). The derived CNPs exhibited bright red fluorescence emission at 663 nm, as investigated by optical characterization. The chemical functional groups were investigated and interpreted using Fourier transform infrared (FTIR) and X-ray diffraction (XRD) spectroscopy. Further, the antioxidant assay was performed on derived CNPs with different concentrations, which exhibited excellent free radical scavenging properties. Moreover, the anti-bacterial activity was performed with E. coli and S. aureus, along with antioxidant assay. This work demonstrates a non-toxic and straightforward approach to promoting sustainable development by synthesizing CNPs using green leaf extracts. Nanoparticles possessing bright red fluorescence in the near-infrared (NIR) region opens up further scope of this work to contribute towards biomedical and plant health applications such as bioimaging, drug delivery, lateral root growth tests, and therapeutics.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Parul Singh, Hemant Singh, Stuti Upadhyay, Aniruddha Dan, Prasanna Kumari B., Mukesh Dhanka, and Jhuma Saha "Green chemistry-induced carbon nanoparticles with antioxidant and antibacterial assay", Proc. SPIE 13006, Biomedical Spectroscopy, Microscopy, and Imaging III, 130060P (20 June 2024); https://doi.org/10.1117/12.3021289

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