the antimicrobial effect of metal nanoparticles such as zinc oxide and silver nanoparticles has been taken into great consideration separately during recent years. the useful application of these nanoparticles in the areas of medicine, biotechnology, and professional prevention of microbes motivated us. the aim of this study was to evaluate antibacterial activity properties of silver doped zinc...

objective(s): the objective of this study was to investigate the antibacterial activities of magnesium oxide nanoparticles (mgo np) alone or in combination with other antimicrobials (nisin and heat) against escherichia coli and staphylococcus aureus in milk.materials and methods: first, the combined effect of nisin and mgo nanoparticles was investigated in milk. then the combined effect of nisi...

a facile and green approach has been developed to synthesize silver nanoparticle (ag-nps). this was carried out by a biosynthetic route using justicia adhatoda root extract as reducing and stabilizing agent. the structure, composition, average particle size (~25 nm) and surface morphology of ag-nps were characterized by the x-ray diffraction, transmission electron microscope and atomic force mi...

manganese oxide nanoparticles (mn3o4-nps) were prepared using precipitation method. the prepared nanoparticles were characterized by a number of techniques, including x-ray diffraction (xrd) analysis, scanning electron microscopy (sem), transmission electron microscopy (tem) and fourier transforms infra red (ft-ir) spectroscopy. the xrd pattern showed that the structure of mn3o4-nps was tetrago...

to evaluate the enhancement effect of berberis vulgaris var. integerrima seeds on the antibacterial activity of cephalexin and ceftizoxime against staphylococcus aureus and escherichia coli ethanol extract of the seeds were prepared. disk diffusion and broth dilution methods were used to determine the antibacterial activity of two cephalosporins in the absence and presence of the extract and it...

results the chemical analysis of s. khuzestanica essential oil revealed the presence of carvacrol (94.1%) as its main component. the inhibition zone diameters of s. khuzestanica essential oil and carvacrol dose-dependently increased. the minimum inhibitory concentration (mic) values of s. khuzestanica essential oil and carvacrol were 0.14 ± 0.08 µl/ml and 0.09 ± 0.04 µl/ml, respectively. s. khu...

background aeromonas hydrophila cause one of the most important diseases in fishes and lead to economic losses, and may be contaminated human beings. objectives the current research aimed to investigate the anti-bacterial activity shown by the extracts prepared from different parts of olea europea, myrtus communis, thymus vulgaris, rosmarinuis officinalis, and achillea falcata that grow in syri...

background: despite the discovery of numerous antibiotics, drug resistance still remains as a major problem. therefore, it is important to introduce and replace new sources of drug such as medicinal plants with antimicrobial properties. objective: the genus clematis (ranunculaceae family) has six species in iran. aerial parts of clematis have been used to cure fever and chronic diseases such as...

objective: the study was conducted to investigate the antibacterial and anthelmintic activities and to determine total phenolic contents of methanolic extract of piper betel leaves. materials and methods: the extract was subjected to assay for antibacterial activity using both gram positive and gram negative bacterial strains through disc diffusion method; anthelmintic activity with the determi...