این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Ecopersia، جلد ۱، شماره ۳، صفحات ۲۷۳-۲۹۰
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Particle Size and Agglomeration Affect the Toxicity Levels of Silver Nanoparticle Types in Aquatic Environment
چکیده انگلیسی مقاله In order to understand the importance of particle size and agglomeration for nano-eco-toxicological studies in aquatic environments, the acute toxicity of two different types (suspended powder and colloidal) of silver nanoparticles (AgNPs) were studied in alevin and juvenilerainbow trout. Fish were exposed to each type of AgNPs at nominal concentrations of 0.032, 0.1, 0.32, 1, 3.2, 10, 32, and 100 mg/L. Lethal concentrations (LC) were calculated using a Probit analysis. Some physical and chemical characteristics of silver nanoparticles were determined. In the case of colloidal form, particles were well dispersed in the water column and retained their size; but in the case of suspended powder, particles were agglomerated to large clumps and precipitated on the bottom. In alevins, the calculated 96 h LC50 values were 0.25 and 28.25mg/L for colloidal and suspended powder AgNPs respectively. In the case of juveniles, the 96h LC50 of colloidal form was 2.16mg/L, but suspended powder did not caused mortality in fish even after 21 days. The results showed that both in alevin and juvenile stages, colloidal form is much toxic than suspended powder; this shows increase of nanoparticles size due to agglomeration, will reduce the toxicity. Silver nanoparticles are toxic materials and their release into the water environment should be avoided.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله محمدرضا کلباسی | mohammad reza
professor, faculty of marine sciences, tarbiat modares university, noor, iran
سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

سید علی جوهری | seyed ali
assistant professor, faculty of natural resources, university of kurdistan, sanandaj, iran

مهدی سلطانی |
professor, faculty of veterinary medicine, tehran university, iran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

ali jafar nodeh |
former msc student, faculty of fisheries and environment, gorgan university of agricultural sciences and natural resources, gorgan, iran
سازمان اصلی تایید شده: دانشگاه گلستان (Golestan university)

نشانی اینترنتی http://ecopersia.modares.ac.ir/article_10248_caafd49d1fe6804fdcdf172d77d0c38d.pdf
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات