مشخصات پژوهش

عنوان	Comparative toxicity study of two different synthesized silver nanoparticles on the bacteria Vibrio fischeri
نوع پژوهش	مقاله چاپ شده
کلیدواژه‌ها	Vibrio fischeri, toxicity, luminometer, bioluminescence, silver nano particles
چکیده	A comparative evaluation of acute toxicity of synthesized nano-silvers using two different procedures (biological and chemical reduction methods) and effect of silver ions on the bacteria Vibrio fischeri were investigated. The bacterial light inhibition test as a toxicological endpoint was used by applying of a homemade luminometer. To compare the toxicity effects as a quantitative parameter, after 5 min and 30 min exposure times, nominal effective concentration (EC) of chemicals and susceptibility constant (Z-value) were calculated. After 5 and 30 min contact times, the EC50 values of two silver nanoparticles and the EC20 values were about similar. The EC values of nanoparticles were larger than those of the silver ions. The susceptibilities of V. fischeri (L/mg) to the silver ions were greater than those of the nano silvers. According to the EC and Z values, the toxicity of silvers decreased in the following order: silver ions >> silver nanoparticles from chemical reduction method ~ silver nanoparticles from biological method.
پژوهشگران	اباصلت حسین زاده کلاگر (نفر ششم به بعد)، محمد جواد چایچی (نفر پنجم)، رضا صابر (نفر چهارم)، حسین عطاری (نفر سوم)، علی اکبر سیف کردی (نفر دوم)، احسان بینائیان (نفر اول)