LOCAL STRUCTURE OF WATER ACROSS THE PHASE DIAGRAM, IN AQUEOUS AND IN BIOLOGICAL

水体和生物体中水在相图中的局部结构

• 批准号: 7598142
• 负责人: ANDERS NILSSON
• 金额: $ 0.02万
• 依托单位: STANFORD UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-03-01 至 2008-02-29
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7598142
• 关键词: Address; Anions; Biological; Cations; Chemicals; Computer Retrieval of Information on Scientific Projects Database; Condition; Data; Data Set; Funding; Furuncles; Grant; Institution; Measures; Micelles; Mono-S; Numbers; Phase; Raman Spectrum Analysis; Research; Research Personnel; Resources; Roentgen Rays; Solutions; Source; Structure; System; Techniques; Temperature; Thermodynamics; United States National Institutes of Health; Water; aqueous; improved; pressure; programs; simulation

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. We propose a research program at SSRL on water across the phase diagram and in different chemical surroundings using X-ray Raman Spectroscopy (XRS) in combination with theoretical simulations to gain new unique information on the local structure of water. We plan to measure XRS spectra at a number of different temperatures from the supercooled region (-20¿C) to well above the boiling point (200¿C) and pressures up to 400 MPa. Furthermore, we will investigate a number of aqueous solutions at various concentrations with different mono-, di- and trivalent cations and different monovalent anions. The structure of water in biological systems will also be addressed in, e.g., reverse micelles. This extensive dataset of local water structure is needed for a firm theoretical analysis and for comparing the results with the existing data using other techniques, in order to get an improved and detailed understanding of the local structure of water and how it varies with thermodynamic and chemical conditions.

该副本是使用众多研究子项目之一 由NIH/NCRR资助的中心赠款提供的资源。子弹和 调查员（PI）可能已经从其他NIH来源获得了主要资金， 因此可以在其他清晰的条目中代表。列出的机构是 对于中心，这是调查员的机构。 我们使用X射线拉曼光谱法（XRS）与理论模拟结合使用X射线拉曼光谱法（XRS）在SSRL上的SSRL进行了研究计划，并在不同的化学环境中提出了一个研究计划，以获取有关水局部结构的新独特信息。我们计划在从超冷区域（-20€）到沸点（200€c）的许多不同温度下测量XRS光谱，并压力高达400 MPa。此外，我们将以不同的单，二价阳离子和不同的单价阴离子的不同浓度研究多种水溶液。生物系统中的水结构也将在例如反向胶束中解决。固件理论分析需要这种广泛的局部水结构数据集，并使用其他技术将结果与现有数据进行比较，以便对水的局部结构及其变化进行改进和详细的了解。具有热力学和化学条件。