SnO2:Au/Carbon Quantum Dots Nanocomposites: Synthesis, Characterization, and Antibacterial Activity
Roomi A.B. Widjaja G. Savitri D. Jalil A.T. Mustafa Y.F. Thangavelu L. Kazhibayeva G. Suksatan W. Chupradit S. Aravindhan S.
June 2021University of Kashan
Journal of Nanostructures
2021#11Issue 3
Carbon quantum dots-based nanostructures have been found more attention in recent years. In this study, Au-doped tin oxide/carbon quantum dots (Au:SnO2/carbon quantum dots) nanocomposites was prepared via simple and friendly to the environment route. The obtained results from X-ray diffraction (XRD) analysis, Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) analysis, photoluminescence spectroscopy (PL), and Ultra violet-Visible (UV-Vis) spectroscopy showed the formation of the pure and regular shape of Au:SnO2/ carbon quantum dots. Then, prepared Au:SnO2/ carbon quantum dots was utilized for the testing of antibacterial activity using Aspergillus niger,, Bacillus subtilis, Candida albicans, Escherichia coli, Klebsiella pneumonia, pseudomonas aeruginosa, Salmonella paratyphi-A serotype, Shigella dysenteriae, Staphylococcus aureus, Staphylococcus epidermidis, and Streptococcus pyogenes. The modified sample showed significant improvement against tested bacteria. The best antibacterial activity was observed in Au:SnO2/ carbon quantum dots against pseudomonas aeruginosa with MIC values of 62.5 μg/ml. The obtained results demonstrate Au:SnO2/ carbon quantum dots nanocomposites are highly suitable as an antibacterial agent against both Gram-negative and Gram-positive bacteria.
Antibacterial , Mbc , Mic , Nanocomposites
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Unviersity of Thi-Qar, Thi-Qar, 64001, Iraq
Biochemistry and biological engineering research group, Scientific Research Center, Al-Ayen University, Iraq
Gunawan Widjaja, Universitas Krisnadwipayana, Jakarta, Indonesia
Faculty of Medicine, Universitas Lambung Mangkurat, Kalimantan Selatan, Banjarmasin, Indonesia
Faculty of Biology and Ecology, Yanka Kupala State University of Grodno, Grodno, Belarus
College of Medical Technology, The Islamic University, Najaf, Iraq
Department of Pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul, 41001, Iraq
Department of Pharmacology, Saveetha Dental College And Hospital, Saveetha Institute Of Medical And Technical Sciences, Saveetha University, Chennai, India
Toraighyrov University, Pavlodar, Kazakhstan
Faculty of Nursing, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok, Thailand
Department of Occupational Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Thailand
Department of Pharmacology, Saveetha Dental College And Hospital, Saveetha Institute Of Medical And Technical Sciences, Chennai, India
Unviersity of Thi-Qar
Biochemistry and biological engineering research group
Gunawan Widjaja
Faculty of Medicine
Faculty of Biology and Ecology
College of Medical Technology
Department of Pharmaceutical Chemistry
Department of Pharmacology
Toraighyrov University
Faculty of Nursing
Department of Occupational Therapy
Department of Pharmacology
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