Title of article :
SnO2:Au/Carbon Quantum Dots Nanocomposites: Synthesis, Characterization, and Antibacterial Activity
Author/Authors :
Roomi, Ali B Unviersity of Thi-Qar - Thi-Qar, Iraq , Widjaja, Gunawan Universitas Krisnadwipayana - Jakarta Indonesia , Savitri, Dwiana Faculty of Medicine - Universitas Lambung Mangkurat - Banjarmasin - Kalimantan Selatan, Indonesia , Turki Jalil, Abduladheem Faculty of Biology and Ecology - Yanka Kupala State University of Grodno - Grodno, Belarus , Mustafa, Yasser Fakri Department of Pharmaceutical Chemistry - College of Pharmacy - University of Mosul - Mosul, Iraq , Thangavelu, Lakshmi Department of Pharmacology - saveetha Dental College and Hospital - saveetha institute of medical and Technical Sciences - saveetha university - Chennai, India , Kazhibayeva, Galiya Toraighyrov University - Pavlodar, Kazakhstan , Suksatan, Wanich Faculty of Nursing - HRH Princess Chulabhorn College of Medical Science - Chulabhorn Royal Academy - Bangkok, Thailand , Chupradit, Supat Department of Occupational Therapy - Faculty of Associated Medical Sciences - Chiang Mai University, Thailand , Aravindhan, Surendar Department of Pharmacology - saveetha dental College and hospital - saveetha institute of medical and technical sciences - chennai , india
Abstract :
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.
Keywords :
Antibacterial , MBC , MIC , Nanocomposites
Journal title :
Journal of NanoStructures
