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Dermal exposure potential from textiles that contain silver nanoparticles.

Authors
Stefaniak-AB; Duling-MG; Lawrence-RB; Thomas-TA; LeBouf-RF; Wade-EE; Virji-MA
Source
Int J Occup Environ Health 2014 Jul; 20(3):220-234
NIOSHTIC No.
20044597
Abstract
Background: Factors that influence exposure to silver particles from the use of textiles are not well understood. Objectives: The aim of this study was to evaluate the influence of product treatment and physiological factors on silver release from two textiles. Methods: Atomic and absorbance spectroscopy, electron microscopy, and dynamic light scattering (DLS) were applied to characterize the chemical and physical properties of the textiles and evaluate silver release in artificial sweat and saliva under varying physiological conditions. One textile had silver incorporated into fiber threads (masterbatch process) and the other had silver nanoparticles coated on fiber surfaces (finishing process). Results: Several complementary and confirmatory analytical techniques (spectroscopy, microscopy, etc.) were required to properly assess silver release. Silver released into artificial sweat or saliva was primarily in ionic form. In a simulated "use" and laundering experiment, the total cumulative amount of silver ion released was greater for the finishing process textile (0.51 +/= 0.04%) than the masterbatch process textile (0.21+/= 0.01%); P<0.01. Conclusions: We found that the process (masterbatch vs finishing) used to treat textile fibers was a more influential exposure factor than physiological properties of artificial sweat or saliva.
Keywords
Nanotechnology; Silver-compounds; Skin-exposure; Textiles; Physiological-factors; Physical-properties; Chemical-properties; Atomic-absorption-spectroscopy; Microscopic-analysis; Analytical-instruments; Analytical-processes; Materials-testing; Laundering; Laboratory-testing; Simulation-methods; Textile-finishing; Coated-fabrics; Author Keywords: Nanoparticles; Silver; Skin; Dermal exposure; Textiles
Contact
Aleksandr B. Stefaniak, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Mail Stop H-2800, Morgantown, WV 26505, USA
CODEN
IOEHFU
CAS No.
7440-22-4
Publication Date
20140701
Document Type
Journal Article
Email Address
AStefaniak@cdc.gov
Fiscal Year
2014
NTIS Accession No.
NTIS Price
Identifying No.
M062014
Issue of Publication
3
ISSN
1077-3525
NIOSH Division
DRDS
Priority Area
Mining: Oil and Gas Extraction
Source Name
International Journal of Occupational and Environmental Health
State
WV; MD
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