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Journal of Medical Bacteriology، جلد ۶، شماره ۳, ۴، صفحات ۵۱-۵۸
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عنوان انگلیسی Biofilm Removal and Antimicrobial Activities of Agar Hydrogel Containing Colloid Nano-Silver against Staphylococcus aureus and Salmonella typhimurium
چکیده انگلیسی مقاله Background : Antibacterial and biofilm removal effects of agar hydrogel incorporating silver nanoparticles (SNP) at various concentrations were studied against Staphylococcus aureus and Salmonella typhimurium in vitro . Methods : The minimum inhibitory concentrations (MIC) of SNP was determined by agar dilution method. Then, hydrogels were prepared by mixing of 0.5% w/v agar and SNP (1/2 MIC, MIC, and 2 MIC) and their inhibitory efficacies against planktonic and biofilm forms of bacteria were measured using agar spot and microtiter test, respectively. Results : The MIC value was 125 µg/ mL for both bacteria. All SNP hydrogels represented antibacterial activity against Staphylococcus aureus and S. typhimurium on agar culture, which was significant compared to control group (silver sulfadiazine cream). The developed biofilm of S. aureus and S . typhimurium were strongly (85% reduction) and modernly affected (60% reduction) by SNP hydrogels during 15 min contact time, respectively. A dose-dependent biofilm reduction was not demonstrated when different SNP concentrations were tested. Moreover, the results from this study confirmed the moderate sanitizing ability of SNP loaded hydrogel against planktonic forms of both bacteria, which SNP (2MIC) hydrogel decreased only 2.3 log10 CFU/ mL in a primary population of S. typhimurium during 15 min exposure time. Conclusion : We recommended SNP incorporated agar hydrogel as an effective biofilm removal sanitizer.
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نویسندگان مقاله لیلا سادات بوریاباف | leyla sadat bouryabaf
department of food hygiene and quality control, faculty of veterinary medicine, urmia university, west azarbaijan, iran.

سازمان اصلی تایید شده: دانشگاه ارومیه (Urmia university)

مهران مرادی | mehran moradi
department of food hygiene and quality control, faculty of veterinary medicine, urmia university, west azarbaijan, iran.

سازمان اصلی تایید شده: دانشگاه ارومیه (Urmia university)

حسین تاجیک | hossein tajik
department of food hygiene and quality control, faculty of veterinary medicine, urmia university, west azarbaijan, iran.

سازمان اصلی تایید شده: دانشگاه ارومیه (Urmia university)

آرمن بدلی | armen badali


نشانی اینترنتی http://jmb.tums.ac.ir/index.php/jmb/article/view/334
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/313/article-313-569115.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Articles
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