Toxicity Reduction of Polymer-Stabilized Silver Nanoparticles by Sunlight
文献类型：期刊论文
| 作者 | Cheng, Yingwen1,2; Yin, Liyan1,3,5; Lin, Shihong1,4; Wiesner, Mark1,4; Bernhardt, Emily1,3; Liu, Jie1,2 |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2011-03-24 |
| 卷号 | 115期号:11页码:4425-4432 |
| ISSN号 | 1932-7447 |
| DOI | 10.1021/jp109789j |
| 英文摘要 | The environmental and health impacts of nanomaterials are becoming important topics of research in recent years. The unique advantages offered by these nanomaterials in wide range of applications cannot be realized until these concerns are resolved. Among all the nanomaterials, Ag nanoparticles, due to their existing extensive uses in commercial products, demand immediate attention. Since the nanoparticle suspensions will be exposed to environmental conditions different from a research lab setting, many factors, including light, temperature, salinity, etc., are suspected to affect the stability of the nanoparticle and also their toxicity. In this study, we examined the effect of sunlight on the stability and toxicity of 6 and 25 nm Ag nanoparticles coated with gum arabic (GA) and polyvinylpyrrolidone (PVP). Under sunlight irradiation, all of these nanoparticles irreversibly aggregated to different degrees depending on the surface coating. The UV content of the sunlight is identified to be the driving force of nanoparticle aggregation, and the strong oscillating dipole dipole interaction is believed to be the origin of the destabilization. Toxicity examinations of the nanoparticles to a wetland plant, Lolium multiflorum, indicate that their toxicity is greatly reduced after sunlight irradiation. |
| 资助项目 | Duke University ; National Science Foundation (NSF) ; Environmental Protection Agency (EPA) under NSF, Center for the Environmental Implications of NanoTechnology (CEINT)[EF-0830093] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000288401200010 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/880]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Liu, Jie |
| 作者单位 | 1.Duke Univ, Ctr Environm Implicat NanoTechnol CEINT, Durham, NC 27708 USA 2.Duke Univ, Dept Chem, Durham, NC 27708 USA 3.Duke Univ, Dept Biol, Durham, NC 27708 USA 4.Duke Univ, Dept Civil & Environm Engn, Nicholas Sch Environm, Durham, NC 27708 USA 5.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng, Yingwen,Yin, Liyan,Lin, Shihong,et al. Toxicity Reduction of Polymer-Stabilized Silver Nanoparticles by Sunlight[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2011,115(11):4425-4432. |
| APA | Cheng, Yingwen,Yin, Liyan,Lin, Shihong,Wiesner, Mark,Bernhardt, Emily,&Liu, Jie.(2011).Toxicity Reduction of Polymer-Stabilized Silver Nanoparticles by Sunlight.JOURNAL OF PHYSICAL CHEMISTRY C,115(11),4425-4432. |
| MLA | Cheng, Yingwen,et al."Toxicity Reduction of Polymer-Stabilized Silver Nanoparticles by Sunlight".JOURNAL OF PHYSICAL CHEMISTRY C 115.11(2011):4425-4432. |
入库方式： OAI收割
来源：武汉植物园
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