کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7865755 | 1509128 | 2018 | 43 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Acute toxicity and biodistribution of different sized copper nano-particles in rats after oral administration
ترجمه فارسی عنوان
سمیت حاد و توزیع بیولوژیک نانو ذرات مس در موشهای صحرایی پس از تجویز خوراکی
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
نانو مس، مروارید مس، سمیت حاد، آسیب کبدی، آسیب کلیه،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
بیومتریال
چکیده انگلیسی
In order to compare the detailed toxicity of nanoâcopper and CuCl2·2H2O (Cu ions) in vivo, the oral toxicity of four differently sized Cu particles (30â¯nm, 50â¯nm, 80â¯nm and 1â¯Î¼m) on rats was investigated compared with CuCl2·2H2O in acute exposure scenarios. We compared the acute LD50 values and evaluated the kinetics of Cu following a single equivalent dose (200â¯mg/kg) of five Cu materials. Continuous gavage of nanoâcopper for 7â¯days, the mortality rates, relative organ weights, and hematological, biochemical, and histopathologic characteristics of rats were examined. The results showed that the LD50 values of Cu ions, 30â¯nm, 50â¯nm, 80â¯nm, and 1â¯Î¼m copper particles were 359.6, 1022, 1750, 2075, and >5000â¯mg/kg, respectively. Physiological and biochemical indexes indicated that 80â¯nm nanoâcopper (Cu NPs) produced the highest degrees of toxicity in short term. The liver and kidneys were the major organs most affected by Cu NPs, and also the target organs for Cu accumulation. The toxic effects of Cu ions are similar to those of nanoâcopper, but they were not the same. Therefore, the toxic effect of nanoâcopper is likely to be the result of the dual action of nanoâcopper particles and copper ions. Collectively, the acute toxic effects produced by Cu NPs were highly correlated with particle size. Moreover, the toxic effects produced by repeated dosing differed from those produced by a single dose, and this may be due to organ targeting effects that are dependent on the size of the nano-particles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: C - Volume 93, 1 December 2018, Pages 649-663
Journal: Materials Science and Engineering: C - Volume 93, 1 December 2018, Pages 649-663
نویسندگان
Huaqiao Tang, Min Xu, XueRong Zhou, Yuanli Zhang, Ling Zhao, Gang Ye, Fei Shi, Cheng Lv, Yinglun Li,