Collaborative Research: NIRT: The Role of Nano-Scale Colloids in Particle Aggregation and Trace Metal Scavenging in Aquatic Systems

合作研究：NIRT：纳米级胶体在水生系统中颗粒聚集和痕量金属清除中的作用

• 批准号: 0210865
• 负责人: Peter Santschi
• 金额: $ 52.03万
• 依托单位: Texas A&M Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-09-15 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0210865&HistoricalAwards=false
• 关键词: Collaborative; Research; NIRT; Role; Nano

0210865 Santschi The aim of this proposal is to investigate the structural dynamics of aggregates of nano-scale colloidal particles and the role of the nano-scale fibrillar biopolymers in inorganic colloid aggregation. The proposal addresses the role that these structures play in the transport of trace metals and pollutants in natural environmental and engineered systems.The combination of experimental studies encompassing microscopic methods (AFM and EM), synchrotron-based methods (SAXS, XAS), and multi-scale modeling will aid in elucidating the significance of particulate material in aquatic systems.This project is collaborative and multi-disciplinary, combining expertise from chemistry, biology, and modeling to investigate the role of fibrils and macromolecules in inorganic colloid aggregation. Results of this work should help in the understanding the self-cleansing capacity of fresh, estuarine and marine waters through transport and sedimentation. Of special interest is the understanding of the similarities and differences between freshwater and seawater.This proposal was received in response to the Nanoscale Science and Engineering Initiative, NSF 01-157, category NIRT.

0210865 Santschi本提案的目的是研究纳米级胶体颗粒聚集体的结构动力学以及纳米级纤维状生物聚合物在无机胶体聚集中的作用。 该提案涉及这些结构在自然环境和工程系统中痕量金属和污染物的运输中所起的作用。（AFM和EM），基于同步加速器的方法（SAXS，XAS）和多尺度建模将有助于阐明颗粒物质在水生系统中的重要性。该项目是合作和多学科的，结合化学，生物学和建模的专业知识，研究纤维和大分子在无机胶体聚集中的作用。 这项工作的结果应有助于了解淡水、河口和海洋沃茨通过运输和沉积作用的自我净化能力。 特别令人感兴趣的是淡水和海水之间的相似性和差异的理解。这个建议是响应纳米科学和工程倡议，NSF 01-157，类别NIRT。