One hundred wound swab samples were collected from wound patients who visited in the Teaching Hospital wound unit in Hillah, Babylon province, Iraq. S. aureus was identified morphologically and biochemically. Total of 30 (30%) from total samples exhibited positive culture for S. aureus. Out of 30 S. aureus, 8 (26.6%) isolates were MRSA, Antibiotic susceptibility was tested for 8 antibiotics for MRSA that appeared sensitive toward Tetracycline, Rifampin and Ciprofloxacin (62.5%) but (37.5%) were resistant. For PenicillinG and Cefoxitin, all isolates were resistant (100%). For Clindamycin, (25%) of isolates were resistant but (75%) were sensitive. About (62.5%) were resistant to Erythromycin but (37.5%) were sensitive. Isolates showed resistance to Gentamycin in 50% and 50% sensitive. Anti-bacterial activity of copper oxide nanoparticles (CuO NPs) against S. aureus displays excessive widespread spectrum antibacterial action against established bacteria with increase zone of inhibition diameter that is proportional with the increase in nanoparticle concentration. The (MIC of CuO NPs ranged from 75-150μg/ml and the MBC ranged from 150-300μg/ml. CuO NPs is recommended as an efficient anti-MRSA alternative.

Fifty specimens were collected from wound patients who visited Al-Hilla Teaching Hospital. The samples were grown on Blood and MacConkey agar for 24-48 hr at 37oC. The bacterial isolates which achieved as a pure and predominant growth from clinical samples as Pseudomonas fluorescens, were identified using morphological properties and Vitek2 system. The anti-bacterial activity of copper oxide nanoparticles (CuO NPs) against was tested by (disk diffusion assay) using dilutions of (400, 200, 100, 50, 25, and 12.5‎µ‎g/ml). The (MIC and MBC) of each isolate was determined. CuO NPs shows wide spectrum antibacterial activity against tested bacteria with rise zone of inhibition diameter that is proportionate with the increase in nanoparticle concentration. The MIC of CuO NPs extended from 100-200‎µ‎g/ml and the MBC ranged from 200-400‎µ‎g/ml. The antibiotic profile was determined by Viteck 2 compact system (Biomérieux). CuO NPs‎ found highly effective and safe in P. fluorescens wounds infections comparing with used antibiotics.

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Pseudomonas aeruginosa, a Gram-negative human pathogen, P. aeruginosa is lone of the furthermost common hospital pathogens also is a chief concern, particularly in immune-compromised patients. The purpose of this study was to identify phenotypic and genotypic antibiotic resistance in Pseudomonas aeruginosa isolated from wound infection The bacterial isolates (30) were obtained from patients admitted to Mirjan Medical City in Babylon, Iraq (burns, wound unit). was identified biochemically and morphologically, and the isolates were subjected to standard bacteriological culturing processes on blood and MacConkey agar plates for 24-48 hours at 37oC for isolation and purification, Viteck 2 compact system confirmed the isolates and antibacterial sensitivity as well. These findings revealed that P.aeruginosa has a high rate of penicillin resistance, with a resistance rate of (100percent ) isolates. Advanced resistance to cephalosporin antibiotics was also found in resistant isolates of Cefoxitin, Ceftriaxone (75%), Ceftazidime, and cefepime (85%). For carbapenem antibiotics, had a high resistance rate (90percent). Aminoglycosides have variable resistance to Amikacin (60percent), Gentamicin (70 percent), and tobramycine resistant (90%). The findings revealed that all Pseudomonas aeruginosa isolates tested positive for Class 1,2 Integron resistance genes. with positive results (35%) for Int1 and 35% for Int2 (25%). This study found that P.aeruginosa has a high rate of resistance to Penicillins, Cephalosporin, Carbapenem and Aminoglycosides antibiotics.