Safety evaluation of hair-dryers marketed as emitting nano silver particles
| Autor: | Alicia A. Taylor, M. Yusuf Khan, Jennifer Helbley, Sharon L. Walker |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Chemistry
technology industry and agriculture Public Health Environmental and Occupational Health Silver Nano Nanoparticle 02 engineering and technology 010501 environmental sciences 021001 nanoscience & nanotechnology 01 natural sciences Silver nanoparticle Silver nitrate chemistry.chemical_compound 0210 nano-technology Safety Risk Reliability and Quality Safety Research 0105 earth and related environmental sciences Nuclear chemistry |
| Zdroj: | Safety Science. 93:121-126 |
| ISSN: | 0925-7535 |
| Popis: | Nanoparticle infused personal care products are becoming more common as consumer products. One example is a hair-dryer marketed as emitting silver nanoparticles (Ag NPs). The purpose of the silver nanoparticles (Ag NPs) is to give hair a sleek, shiny look while also promoting antimicrobial effects. This study investigates release of Ag NPs from hair-dryers and the effects associated with Ag NPs to the human epidural flora. To give an estimation of consumer exposure to Ag NPs with these products, three brands of hair-dryers were selected and particle samples emitted from the hair-dryers were collected based on size fractionation. Collected particles underwent elemental analysis. Silver was not detected in any of the samples. The Kirby-Bauer assay was used to detect a toxicity dose response relationship over a range of silver nanoparticles and silver nitrate (AgNO 3 ) concentrations using five model bacteria species. This portion of the work represented the microbial response to Ag NPs and acted as a proxy for epidural microbial exposure to Ag NPs emitted from a hair-dryer. Findings from this study such as the recorded release of nanoparticles from the hair-dryers and the potential microbial toxicity effects caused from nanoparticle exposure will help consumers make more informed decisions regarding nanoparticle infused products. |
| Databáze: | OpenAIRE |
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