RUI: Environmentally and Biologically Relevant Chemical Mechanisms Induced by Carbonaceous Nanoparticles

RUI：碳质纳米颗粒诱导的环境和生物相关化学机制

• 批准号: 1149330
• 负责人: Anne Johansen
• 金额: $ 31.71万
• 依托单位: Central Washington University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-05-01 至 2018-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1149330&HistoricalAwards=false
• 关键词: RUI; Environmentally; Biologically; Relevant; Chemical

The Environmental Chemical Sciences (ECS) program of the Division of Chemistry will support the research program of Associate Prof. Anne Johansen of Central Washington University (CWU). Dr. Johansen and her research group will study the chemical mechanisms linking physico-chemical properties of collected atmospheric ultrafine particles (¡Ü 100 nm, UFP) to their environmental reactivity and physiological toxicity. Two main particle characteristics are investigated: (i) the content of redox-active, or bioavailable iron, and (ii) the degree of particle surface carbon oxidation. In addition, the presence of potential electron donors in the surrounding matrix will be evaluated. By using model soot and real UFPs, mechanisms will be identified and their relative significance assessed in biologically and environmentally relevant conditions. Research will be conducted at CWU and the Pacific Northwest National Laboratory User Facility (EMSL) with the aid of custom-made and state-of-the-art instruments. These analytical capabilities will enable the generation of novel results that are likely to increase current understanding of the reactivity and transformation of carbonaceous particles in a variety of settings. An important educational component of this study is the effective training of undergraduate students from a primarily undergraduate institution located in a rural setting such as CWU. A large number of underrepresented minority students will gain experimental, critical thinking and communication skills through their hands-on work while collaborating with scientists from the nearby National Laboratory.

环境化学科学（ECS）化学计划将支持Anne F Central Washington University（CWU）的研究计划。研究：（i）将评估氧化还原活性或生物利用的铁的含量，（ii）将评估颗粒表面碳氧化的程度。在CWU和西北国家实验室用户设施（EMSL）的生物学和环境相关条件下在各种环境中的反应性和转化，这是本科生的有效培训。与附近国家实验室的科学家合作。