TAILIEUCHUNG - Synthesis and antibacterial activity of silver/reduced graphene oxide nanocomposites against Salmonella typhimurium and Staphylococcus aureus

In this study, silver/reduced graphene oxide (Ag/rGO) nanocomposites were synthesized in situ using three different mass ratios of silver nitrate and graphene oxide (1:1, 2:1, and 4:1). L-ascorbic acid (LAA) was used as an environment-friendly reducing agent. The characterization of Ag/rGO was investigated using Fourier transform infrared spectroscopy, X-ray diffraction, Raman spectroscopy, and transmission electron microscopy. The investigated results showed that the Ag/rGO nanocomposites were successfully synthesized with silver nanoparticles in the size range of 10-25 nm uniform distribution on rGO sheets. The antibacterial activity of Ag/rGO was tested against Gram-negative (Salmonella typhimurium) and Grampositive (Staphylococcus aureus) bacteria using plate colony-counting and broth dilution methods, in comparison with individual rGO and silver nanoparticles. The tested results showed that the Ag/ rGO nanocomposite with the AgNO3 :GO ratio of 4:1 (Ag/rGO4:1) exhibited the strongest antibacterial activity. The minimal inhibitory concentration values of Ag/rGO4:1 against Salmonella typhimurium and Staphylococcus aureus were 10 µg/ml and 50 µg/ml, respectively. Hence, the Ag/rGO nanocomposite could be considered as a potential antibacterial agent. | Synthesis and antibacterial activity of silver/reduced graphene oxide nanocomposites against Salmonella typhimurium and Staphylococcus aureus

• Hoá học
• Salmonella typhimurium
• Silver graphene oxide
• Staphylococcus aureus
• Reduced graphene oxide
• Inhibitory concentration values
• Gen có vai trõ chẩn đoán vi khuẩn Salmonella Typhimurium
• Chẩn đoán vi khuẩn Salmonella Typhimurium
• Vi khuẩn Salmonella Typhimurium
• Môi trường nước pepton
• Điện di sản phẩm ADN plasmid
• Salmonella enterica serovar Typhimurium marT
• Red recombination system
• Biofilm structures
• MarT protein
• Periplasmic proteins
• Identification of periplasmic proteins
• Periplasmic proteins in salmonella typhimurium
• Based on the colonization pattern
• Sequencing and phylogenetic analysis
• Phylogenetic analysis
• Inv E gene
• Inv E gene of salmonella typhimurium
• α keto acids
• Ames test system
• DNA repair system
• Salmonella mutagenicity
• Tỷ lệ nhiễm Mycoplasma gallisepticum ở vịt
• Tỷ lệ nhiễm Salmonella typhimurium ở vịt
• Kháng nguyên tự chế
• Huyết thanh dương tính
• Xác định vi khuẩn Salmonella sp
• Scientific reports
• scientific research
• molecular Biology
• catalyst
• medical research
• Gen kháng thuốc
• Chủng vi khuẩn Salmonella Typhimurium
• Thịt lợn tươi
• Gen kháng kháng sinh
• Acid adaptation
• Environmental stresses
• Organic acids
• Polymyxin B
• Tạp chí nông nghiệp
• Khảo sát nồng độ ức chế tối thiểu
• Cao thô chiết xuất
• Thảo dược đối với Escherichia coli
• Salmonella Typhimurium và Staphylococcus aureus
• Tạp chí Sinh học
• Ngộ độc thực phẩm
• Minimum inhibitory concentration
• Determination of herbal extracts against Escherichia coli
• Determination of Salmonella Typhimurium
• Determination of Staphylococcus aureus
• Eclipta prostrata L
• In silico analysis
• Immune potential
• Sequencing and in silico characterization
• Silico characterization
• OmpF protein
• BMC Genomics
• Essential genes
• Iron restriction
• Reactive oxygen species
• Antibiotic targets
• Host genetics
• Bacterial infection
• Collaborative cross
• QTL mapping
• Quantitative traits
• Mouse genetics
• Chế phẩm sinh học
• Điều trị bệnh do vi khuẩn Salmonella typhimurium
• Vi khuẩn trên gà Nòi lai
• Than hoạt tính
• Dịch chiết nấm men Saccharomyces cerevisiae
• BMC Veterinary Research
• Bacterial ghosts
• Bacterial ghosts’ applications
• Vaccination trial
• Immunological characterization
• BMC Genetics
• Conditionally essential genes
• Bacterial survival
• Enterocin KP
• Sublethal injury
• Gram negative bacteria
• UHT milk
• Escherichia coli O157H7
• tài liệu báo cáo nghiên cứu khoa học
• cách trình bày báo cáo
• kiến thức bệnh thú y
• báo cáo bệnh thú y
• các nghiên về bệnh thú ý
• 2 nitropropanol
• Salmonella gallinarum
• Shigatoxic E coli
• Niche specific virulence
• Salmonella enterica
• Zoonotic pathogen
• Human non typhoidal salmonellosis
• Public health
• Uvaria chamae
• Improved traditional Medicine