کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2588439 1561891 2015 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterization of silver nanoparticles in selected consumer products and its relevance for predicting children's potential exposures
ترجمه فارسی عنوان
تشخیص نانوذرات نقره در محصولات مصرفی انتخاب شده و ارتباط آن با پیش بینی نوردهی بالقوه کودکان
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست بهداشت، سم شناسی و جهش زایی
چکیده انگلیسی


• We identify and catalogue 165 consumer products claiming to contain AgNPs.
• We report a tiered analytical approach to characterize AgNPs in selected products.
• Silver was detected in almost all products and confirmed by electron microscopy.
• Silver mass contributions were highly variable.
• We use the characterization data to estimate a child-specific exposure scenario.

Due to their antifungal, antibacterial, antiviral, and antimicrobial properties, silver nanoparticles (AgNPs) are used in consumer products intended for use by children or in the home. Children may be especially affected by the normal use of consumer products because of their physiological functions, developmental stage, and activities and behaviors. Despite much research to date, children's potential exposures to AgNPs are not well characterized. Our objectives were to characterize selected consumer products containing AgNPs and to use the data to estimate a child's potential non-dietary ingestion exposure. We identified and cataloged 165 consumer products claiming to contain AgNPs that may be used by or near children or found in the home. Nineteen products (textile, liquid, plastic) were selected for further analysis. We developed a tiered analytical approach to determine silver content, form (particulate or ionic), size, morphology, agglomeration state, and composition. Silver was detected in all products except one sippy cup body. Among products in a given category, silver mass contributions were highly variable and not always uniformly distributed within products, highlighting the need to sample multiple areas of a product. Electron microscopy confirmed the presence of AgNPs. Using this data, a child's potential non-dietary ingestion exposure to AgNPs when drinking milk formula from a sippy cup is 1.53 μg Ag/kg. Additional research is needed to understand the number and types of consumer products containing silver and the concentrations of silver in these products in order to more accurately predict children's potential aggregate and cumulative exposures to AgNPs.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hygiene and Environmental Health - Volume 218, Issue 3, May 2015, Pages 345–357
نویسندگان
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