Background: The spread of pathogenic microorganisms in food and beverage and their resistance to antibiotics have raised major concerns for public health. The aim of this study was to investigate the antimicrobial activity of various metal oxide nanoparticles (NPs) including zinc oxide (ZnO), magnesium oxide (MgO), and iron oxide (Fe2O3) NPs against Staphylococcus aureus (S. aureus) and Esch...

The aim study antibacterial effects of silver nanoparticles against resistant strains of E.coli bacteria.12 strains of E. coli strains arising urinary infection were isolated from hospitalized patient in zabolhospitals. Minimum inhibitory concentration of winter cherry were determined by dilution method in various concentration on bacteria. The highest MIC values was found to be 100ppm against ...

Nowadays silver nanoparticles (AgNPs) are used as antimicrobial due to its well known physical, chemical, and biological properties. A large collection of bacterial cells adhering to a surface is called bacterial biofilm. Exposure to silver nano particles (AgNPs) may prevent colonization of new bacteria onto the biofilm. In the present work, we have investigated whether the biofilm format...

Biological production of silver nanoparticles, due to its high antimicrobial properties and environmental compatibility, can be used as an alternative to antibiotics. The aim of this study was to optimize the green synthesis of silver nanoparticles using fruit extract of Bunium persicum Boiss and investigate the antimicrobial effect of nanoparticles against Escherichia coli and Staphylococcus a...

Objective(s):Multi-epitopic protein vaccines and direction of vaccine delivery to dendritic cells (DCs) are promising approaches for enhancing immune responses against mutable pathogens. Escherichia coli is current host for expression of recombinant proteins, and it is important to optimize expression condition. The aim of this study was the optimization of multi-epitopic HIV-1 tat/pol/gag/env ...

BACKGROUND Lipocalin 2 is a bacteriostatic protein that binds the siderophore enterobactin, an iron-chelating molecule produced by Escherichia coli (E. coli) that is required for bacterial growth. Infection of the lungs by E. coli is rare despite a frequent exposure to this commensal bacterium. Lipocalin 2 is an effector molecule of the innate immune system and could therefore play a role in hi...

Uropathogenic organisms have evolved numerous defense mechanisms against antimicrobial agents, hence resistance to old and newly available drugs are increasing at an unprecedented level. The events of antibiotic resistance have lead for screening of several medicinal plants for their potential antimicrobial activity. The aim of this study was to evaluate the antimicrobial efficacy of Cyminumcum...

Drug resistant pathogens are vibrant global problem. Penicillin binding protein 5 (PBP5) plays important role in bacterial cell wall biosynthesis. Mutation in PBP5 is a well-known mechanism for development of drug resistant strain of bacteria. In this context we have designed a peptide that fits better at the ligand-binding site of mutant PBP5 compared to wild type PBP5. It is expected that the...

Recently, Ivan Damgaard and Mads Jurik proposed a protocol for protecting Internet voters against hackers. The protocol ensures that hackers with full control of the computer of a voter will be unable to see what the voter votes. Further, if the hacker tampers with the vote and tricks the voter to vote for a different candidate, the vote will be for an arbitrary candidate (uniformly distributed...

It has been well-known for many years now that vitamin E is an essential nutrient; however, some of the physiological functions of this vitamin are still far from being understood. In recent years, a series of preclinical and clinical studies proposed a protective role of vitamin E on acute kidney injury (AKI), which has a high morbidity rate and mortality rate in clinical investigations. Based...