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Journal of Environmental Science and Health, Part C
Environmental Carcinogenesis and Ecotoxicology Reviews
Volume 36, 2018 - Issue 2
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Original Articles

Effects of noble metal nanoparticles on the hydroxyl radical scavenging ability of dietary antioxidants

Hui ZhangCAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, P. R. China;Division of Analytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition, US Food and Drug Administration, College Park, MD, USA;University of the Chinese Academy of Sciences, Beijing, P. R. ChinaView further author information
,
Xiumei JiangDivision of Analytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition, US Food and Drug Administration, College Park, MD, USAView further author information
,
Gaojuan CaoDivision of Analytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition, US Food and Drug Administration, College Park, MD, USAView further author information
,
Xiaowei ZhangDivision of Analytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition, US Food and Drug Administration, College Park, MD, USAView further author information
,
Timothy R. CroleyDivision of Analytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition, US Food and Drug Administration, College Park, MD, USAView further author information
,
Xiaochun WuCAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, P. R. ChinaView further author information
&
Jun-Jie YinDivision of Analytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition, US Food and Drug Administration, College Park, MD, USACorrespondence[email protected]
View further author information
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Pages 84-97 | Published online: 18 Apr 2018
 
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ABSTRACT

Noble metal nanoparticles (NPs) have been widely used in many consumer products. Their effects on the antioxidant activity of commercial dietary supplements have not been well evaluated. In this study, we examined the effects of gold (Au NPs), silver (Ag NPs), platinum (Pt NPs), and palladium (Pd NPs) on the hydroxyl radical (·OH) scavenging ability of three dietary supplements vitamin C (L-ascorbic acid, AA), (−)-epigallocatechin gallate (EGCG), and gallic acid (GA). By electron spin resonance (ESR) spin-trapping measurement, the results show that these noble metal NPs can inhibit the hydroxyl radical scavenging ability of these dietary supplements.

Additional information

Funding

This work was supported by a regulatory science grant under the FDA Nanotechnology CORES Program. The financial support provided by the UCAS (UCAS [2015]37) Joint PhD Training Program is acknowledged. This paper is not an official U.S. FDA guidance or policy statement. No official support or endorsement by the U.S. FDA is intended or should be inferred.

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