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The kinetics of the tissue distribution of silver nanoparticles of different sizes

Paper ID Volume ID Publish Year Pages File Format Full-Text
7956 570 2010 12 PDF Available
Title
The kinetics of the tissue distribution of silver nanoparticles of different sizes
Abstract

Blood kinetics and tissue distribution of 20, 80 and 110 nm silver nanoparticles were investigated in rats up to 16 days after intravenous administration once daily for 5 consecutive days. Following both single and repeated injection, silver nanoparticles disappeared rapidly from the blood and distributed to all organs evaluated (liver, lungs, spleen, brain, heart, kidneys and testes) regardless of size. The 20 nm particles distributed mainly to liver, followed by kidneys and spleen, whereas the larger particles distributed mainly to spleen followed by liver and lung. In the other organs evaluated, no major differences between the sizes were observed. Size-dependent tissue distribution suggests size-dependent toxicity and health risks. Repeated administration resulted in accumulation in liver, lung and spleen, indicating that these organs may be potential target organs for toxicity after repeated exposure. A physiologically based pharmacokinetic (PBPK) model for nanoparticles which describes the kinetics of silver nanoparticles was developed. Model parameter values were estimated by fitting to data. No clear relation between parameter values and corresponding particle diameters became apparent.

Keywords
Silver; Nanoparticles; Tissue distribution; Kinetics
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 31, Issue 32, November 2010, Pages 8350–8361
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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