Dermal exposure potential from textiles that contain silver nanoparticles.

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.

authors

Stefaniak AB,Duling MG,Lawrence RB,Thomas TA,LeBouf RF,Wade EE,Virji MA

doi

10.1179/2049396714Y.0000000070

subject

Has Abstract

pub_date

2014-07-01 00:00:00

pages

220-34

issue

3

eissn

1077-3525

issn

2049-3967

journal_volume

20

pub_type

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