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International Journal of Aquatic Biology، جلد ۲، شماره ۴، صفحات ۱۸۸-۰
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عنوان انگلیسی Does Physical Production of Nanoparticles Reduce Their Ecotoxicity? A Case of Lower Toxicity of AgNPs Produced by Laser Ablation to Zebrafish (Danio rerio)
چکیده انگلیسی مقاله Use of nano-materials has increased in various aspects of human life. However, possible outbreak of nano-materials toxicity in humans and other organisms is one of the future challenges. Different chemical precursors which are used in chemical approaches for production of nano-materials may have secondary and sometimes toxic effects in living organisms. These secondary effects may be reduced in physical approaches due to not use of chemicals. To test this hypothesis, acute toxic effects of two types of silver nanoparticles (AgNPs) which were produced by physical (top-down) and chemical (bottom-up) methods on survival rate of Zebrafish ( Danio rerio ) were compared. According to the results, AgNPs produced by physical method were 38 times less toxic than ones generated by chemical method and therefore, the hypothesis was approved. The estimated 96 hr LC 50 values of AgNPs produced by physical and chemical methods for zebra fish were 0.540 ± 0.032 and 0.014 ± 0.001 mg/L, respectively. According to these values and regarding the rules of European ::union::, both types of AgNPs are considered as highly toxic chemicals to aquatic organisms. Generally, AgNPs seems to have toxic effects on aquatic organisms regardless of the method used for their production, and so, their accidental or intentional entrance into the aquatic ecosystems should be inhibited.
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نویسندگان مقاله سید علی جوهری | seyed ali johari
aquaculture department, faculty of natural resources, university of kurdistan, zip code 66177-15175, p.o. box 416, sanandaj, kurdistan, iran.


ایمان سوری نژاد | iman sourinejad
fisheries department, faculty of oceanic and atmospheric sciences and technologies, university of hormozgan, bandar abbas, iran.

سازمان اصلی تایید شده: دانشگاه هرمزگان (Hormozgan university)

نیکو bärsch | niko bärsch
ceo, particular gmbh, langenhagen, germany.


سمیه ساعد moocheshi | somayye saed moocheshi
gorgan university of agricultural sciences and natural resources, gorgan, iran.

سازمان اصلی تایید شده: دانشگاه گلستان (Golestan university)

اندیشه کاسب | andishe kaseb
marine sciences faculty, tarbiat modares university, noor, iran.

سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

نینا نازدار | nina nazdar
natural resources faculty, urmia university, urmia, iran.

سازمان اصلی تایید شده: دانشگاه ارومیه (Urmia university)

نشانی اینترنتی http://npajournals.com/ijab/index.php/ijab/article/view/281
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