Characterisation of silver release from nanoparticle-treated baby products

We tested six kinds of commercially available baby products containing nano-silver and divided them into two categories: baby food containers and baby oral care products, according to usage. We measured the total mass of silver, particle size, particle number concentration and the mobility under dif...

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Published inFood additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment Vol. 35; no. 10; pp. 2052 - 2061
Main Authors Ding, Ru, Yang, Pingjian, Yang, Yuan, Yang, Zhaoguang, Luo, Li, Li, Haipu, Wang, Qiang
Format Journal Article
LanguageEnglish
Published England Taylor & Francis 03.10.2018
Taylor & Francis Ltd
Subjects
Acetic acid
Babies
Baby foods
Baby supplies
Containers
Dental materials
Energy transmission
Ethanol
exposure
finished plastic and silicone baby products
Food production
Migration
nanoparticle release
Nanoparticles
Silicones
Silver
Silver nanoparticle
single particle ICP-MS
Transmission electron microscopy
finished plastic and silicone baby products
exposure
single particle ICP-MS
nanoparticle release
Silver nanoparticle
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Summary:We tested six kinds of commercially available baby products containing nano-silver and divided them into two categories: baby food containers and baby oral care products, according to usage. We measured the total mass of silver, particle size, particle number concentration and the mobility under different simulated conditions. The total mass of silver in baby products and migration solutions was quantified by ICP-MS analysis, and the size of the migrated particles was investigated by single particle ICP-MS and transmission electron microscopy-energy dispersive spectrometer. Nano-silver has different migration behaviour in different materials, and the total mass of silver released in 3% acetic acid was generally highest for plastic material, while highest in 10% ethanol for silicone material. For baby food containers and baby oral care products, the total amount of silver in the migration solutions varied from 2.98 to 126.46 ng/dm 2 and from 2.01 to 2.83 ng/g, respectively. The research shows that the use of baby products containing silver may expose babies to silver nanoparticles.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1944-0049
1944-0057
DOI:10.1080/19440049.2018.1480064