Effect of polar/non-polar facets on the transformation of nanoscale ZnO in simulated sweat and potential impacts on the antibacterial activity
文献类型：期刊论文
| 作者 | Zhang, Xiang; Qian, Xiaoting; Tang, Jie; Zhu, Nali; Li, Zhigang; Fu, Jianjie ; Li, Lingxiangyu; Wang, Yawei
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| 刊名 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
 |
| 出版日期 | 2022 |
| 卷号 | 246页码:114187-1-9 |
| 关键词 | The exposed facet Nanoscale ZnO Chemical transformation Simulated sweat Antibacterial activity |
| ISSN号 | 0147-6513 |
| 英文摘要 | The use of nanoscale zinc oxide (n-ZnO) in the personal care products would cause interactions between n-ZnO and human sweat. Facet engineering has been applied to n-ZnO to improve its activity. Nevertheless, it is not clear whether the exposed facet would affect transformation of n-ZnO in sweat. Herein, we prepared ZnO nanoneedles with the dominant (1010) non-polar facet (i.e., ZnO-1010) and ZnO nanoflakes with the dominant (0001) polar facet (i.e., ZnO-0001), respectively. We found that n-ZnO can undergo chemical transformation in the simulated sweat within 168 h or 24 h, transforming into amorphous materials and Zn-3(PO4)(2)0.4 H2O and/or Na(ZnPO4)center dot H2O. Given the rate constant (e.g., 0.093 h(-1) for ZnO-0001 vs. 0.033 for ZnO-1010) of ZnO depletion and components of the precipitate from the simulated sweat, nevertheless, the transformation is highly dependent on the dominant exposed facet of n-ZnO. The ZnO-0001 relative to ZnO-1010 would likely undergo chemical transformation, demonstrating that the (0001) polar facet compared to (1010) non-polar facet had a superior activity to the dihydrogen phosphate anions in the simulated sweat, which is supported by density functional theory calculations. The chemical transformation can affect the antibacterial activity of n-ZnO to E. coil, moderating the toxicity due to a great decrease in the concentration of the dissolved zinc. In total, our findings provided insights into the facet-dependent transformation for n-ZnO in the simulated sweat, improving our understanding of potential risk of n-ZnO. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/48486]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 作者单位 | 1.University of Chinese Academy of Sciences, CAS 2.Research Center for Eco-Environmental Sciences (RCEES) 3.Chinese Academy of Sciences 4.Zhejiang Sci-Tech University |
| 推荐引用方式 GB/T 7714 | Zhang, Xiang,Qian, Xiaoting,Tang, Jie,et al. Effect of polar/non-polar facets on the transformation of nanoscale ZnO in simulated sweat and potential impacts on the antibacterial activity[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2022,246:114187-1-9. |
| APA | Zhang, Xiang.,Qian, Xiaoting.,Tang, Jie.,Zhu, Nali.,Li, Zhigang.,...&Wang, Yawei.(2022).Effect of polar/non-polar facets on the transformation of nanoscale ZnO in simulated sweat and potential impacts on the antibacterial activity.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,246,114187-1-9. |
| MLA | Zhang, Xiang,et al."Effect of polar/non-polar facets on the transformation of nanoscale ZnO in simulated sweat and potential impacts on the antibacterial activity".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 246(2022):114187-1-9. |
入库方式： OAI收割
来源：生态环境研究中心
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