Synthesis of novel iron Oxide/Carbon dots green nanocomposites for bacteria detection and antibacterial agent applications

Mahmudin, Lufsyi and Kurnia Sari, Emi and Jiananda, Adhistinka and Wulandani, Rafiqa and Marsel Tumbelaka, Rivaldo and Ardiyanti, Harlina and Imani Istiqomah, Nurul and Rahman Siregar, Abdul and Ali, Huma and Ali, Daoud and Suharyadi, Edi (2024) Synthesis of novel iron Oxide/Carbon dots green nanocomposites for bacteria detection and antibacterial agent applications. Microchemical Journal, 203. pp. 1-12. ISSN 0026265X

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Abstract

Due to the widespread of pathogens and infectious diseases, rapid detection and antibacterial agents are needed. Antibacterial nanomaterials have attracted attention due to their advantageous properties and unique mechanisms. Besides, the green route approach to synthesizing nanoparticles has attracted interest due to being environmentally friendly, biocompatible, and non-toxic. In this study, carbon dots (Cdots), a promising antibacterial material, have been combined with the Fe3O4 nanoparticles as the carrier and produce Fe3O4/Cdots nanocomposite via green synthesis for bacteria detection and antibacterial agents. Green synthesis was achieved with Moringa oleifera leaves extract as reducing agent on Fe3O4 and watermelon peel as carbon source on Cdots. X-ray diffraction shows a cubic inverse spinel structure of magnetite. The phase composition of the nanocomposites consists of magnetite and carbon. The particle size of nanocomposites is 13.4 nm with semi-spherical morphology and high surface area. The bonding analysis and element composition are consistent with phase composition estimation that confirms the existence of Fe3O4 and Cdots on the nanocomposites and lacks other impurities. The vibrating sample magnetometer shows the superparamagnetic behavior of the samples. Nanocomposites were used to detect Escherichia coli (E. coli) bacteria. The quenching of photoluminescence of the nanocomposite shows an increase in the amount of E. coli bacteria. Furthermore, nanocomposites produce high inhibition zones against E. coli bacteria within 48 h, offering excellent antibacterial properties. Hence, nanocomposites provide a promising agent for bacteria detection and antibacterial treatment. © 2024 Elsevier B.V.

Item Type: Article
Additional Information: Cited by: 0
Uncontrolled Keywords: Green synthesis Carbon dots Fe3O4 nanoparticles Bacteria detection Antibacterial agent
Subjects: Q Science > QH Natural history > QH301 Biology
Divisions: Faculty of Biology > Doctoral Program in Biology
Depositing User: Rusna Nur Aini Aini
Date Deposited: 03 Oct 2024 08:08
Last Modified: 03 Oct 2024 08:08
URI: https://ir.lib.ugm.ac.id/id/eprint/6551

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