the antimicrobial effects of essential oil isolated from myrtus communis l. against es-cherichia coli, staphylococcus aureus, streptococcus faecalis, pseudomonas aeruginosa, klebsiella pneumoniaee, bacillus subtilis, bacillus licheniformis, candida albicans and sac-charomyces cerevisiae were studied. the disc diffusion method was used to evaluate the zone of microbial growth inhibition at vario...

The antimicrobial activity of silver nanoparticles (AgNPs) is currently used as an alternative disinfectant with diverse applications, ranging from decontamination of aquatic environments to disinfection of medical devices and instrumentation. However, incorporation of AgNPs to the environment causes collateral damage that should be avoided. In this work, a novel Ag-based nanocomposite (CEOBACT...

OBJECTIVES The goal of the present study was to obtain a comprehensive overview of the bacteriostatic and bactericidal effects of six commonly used antibiotics on planktonic as well as on sessile Burkholderia cepacia complex cells. METHODS The bacteriostatic and bactericidal activities of ceftazidime, ciprofloxacin, meropenem, minocycline, tobramycin and trimethoprim/sulfamethoxazole were det...

abstract background: a surgical site infection (ssi) is the most common nosocomial infection after surgery and is the third most common infection in hospitalized patients. the aim of this study was to asses minimum inhibitory concentration (mic) of the causing agents of ssi and antimicrobial susceptibility patterns. methods: this cross-sectional study was done in three referral hospitals in nor...

The objective of the present study was to investigate the potential bactericidal activity of amoxicillin-clavulanate against beta-lactamase-producing Escherichia coli strains and to elucidate the extent to which enzyme production affects the activity. Six adult Yucatan miniature pigs received a single intravenous dose of 1.1 g of amoxicillin-clavulanate as an intravenous infusion over 30 min. T...

b ackgro un d : the antimicrobial activity of silver nanoparticles has been investigated in medical fields in recent years, but there are few studies regarding its effect on oral microorganisms. the aim of the present study was to evaluate the in vitro antimicrobial and toxicity properties of nanosilver against two dental plaque microorganisms  and human gingival fibroblast (hgf) cell line. me ...

Through bioassay-guided fractionation of the extracts from the aerial parts of the Chinese herb Hypericum japonicum Thunb. Murray, Isojacareubin (ISJ) was characterized as a potent antibacterial compound against the clinical methicillin-resistant Staphylococcus aureus (MRSA). The broth microdilution assay was used to determine the minimal inhibitory concentrations (MICs) and minimal bactericida...

Susceptibility testing by the broth dilution method showed that all the gram-positive but only some of the gram-negative bacteria tested were susceptible to the antitumor antibiotic, macromomycin (MCR; NSC 170105). The minimal inhibitory concentration for the susceptible organisms was less than 3 mug/ml. The action of MCR was bactericidal; however, at very high concentrations (50 mug/ml and abo...

Recreational waters should be considered as risks for Enterococcal infections in regions with high utilization and long exposure periods. The aim of this study was to investigate the resistance of Enterococci to selected antibiotics and some heavy metals [Pb+2, Fe+2, Zn+2 and Cr+2]. A total of 75 Enterococcal isolates was obtained from 54 bathing and ...

Twelve extracts obtained from nine plants belonging to six different genera of Clusiaceae were analyzed against Gram-negative (Escherichia coli and Pseudomonas aeruginosa) and Gram-positive (Staphylococcus aureus and Enterococcus faecalis) bacteria using the microdilution broth assay. Tovomita aff. longifolia, T. brasiliensis, Clusia columnaris, Garcinia madruno, Haploclathra paniculata, and Ca...