results: the lowest concentrations of nzvi that inhibited the visible growth (mic) of e. amylovora, x. oryzae, b. cereus and streptomyces spp. were 625, 550, 1250 and 1280 ppm, respectively. the minimum bactericidal concentration (mbc) for e. amylovora and x. oryzae were 10,000 and 5,000 ppm of nzvi, respectively. mbc was not observed for the gram positive bacteria. no bacteriostatic and bacter...

One of the most important and serious ecological problems is mutagenic pollution of the natural environment. Therefore, detection of mutagenic compounds in samples taken from natural habitats is of special interest. Microbiological mutagenicity tests seem to be very useful tools for such detection. In this review article, a general view on the tests employing genetically modified bacterial stra...

o bjectives: this study aimed to compare a number of new nanocomposites capable of pro- tecting the jaw from ionizing radiation. mat erials and methods: four different types of nano-powders [ti, zr (iv) oxide, ag and co] were mixed in a polymer matrix to create nano-composites with doping values of 8% in weight. small-angle x-ray scattering (saxs) analysis was performed using a hecus- saxs syst...

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Chemical carcinogenicity has been the target of numerous attempts to create predictive models alternative to the animal ones, ranging from short-term biological assays (e.g. mutagenicity tests) to theoretical models. Among the theoretical models, the application of the science of structure-activity relationships (SAR) has earned special prominence. The qualitative approach to SAR has lead to th...

background: agriculture is an important sector for the malaysian economy. the use of pesticides in agriculture is crucial due to its function in keeping the crops from harmful insects. children living near agricultural fields are at risk of pesticide poisoning. objective: to evaluate the genotoxic risk among children who exposed to pesticides and measure dna damage due to pesticides exposure. m...