Studies of Quasi-Two Dimensional Systems

斯图尔特·A·赖斯教授得到了理论和计算化学项目的资助，继续他对准二维系统的研究。赖斯将使用理论和实验相结合的方法来研究：1)在非常薄的细胞中或吸附在液体表面上的聚合物球体和二聚体；2)朗缪尔单分子膜；以及3)金属混合物的液-汽界面。实验技术包括消逝波动态光散射、数字视频显微镜、掠入射X射线衍射和X射线反射率。模拟将涉及分子动力学和蒙特卡罗技术以及CAR-Parinello理论的使用。人们对两个不相容相之间的界面结构知之甚少。许多化学和生物现象取决于这种界面的性质。例如，长链两亲分子和水之间的界面是在细胞壁中发现的生物膜的模型。赖斯正在使用最近才出现的理论和实验方法相结合的方法来探索这些相界的详细结构以及影响其结构的因素。

Professor Stuart A. Rice is supported by a grant from the Theoretical and Computational Chemistry Program to continue his studies of quasi-two dimensional systems. Rice will use a combination of theory and experiment to perform studies of: 1) polymer spheres and dimers in very thin cells or adsorbed on liquid surfaces; 2) Langmuir monolayers; and 3) the liquid-vapor interfaces of mixtures of metals. Experimental techniques to be employed include evanescent wave dynamic light scattering, digital video microscopy, and grazing incidence X-ray diffraction and X-ray reflectivity. Simulations will involve the use of Molecular Dynamics and Monte Carlo techniques as well as Car-Parinello theory. Very little is known about the structure of the interface between two immiscible phases. Many chemical and biological phenomena depend on the nature of this interface. For example, the interface between long chain amphiphiles and water is a model for biological membranes found in the cell wall. Rice is using a combination of theoretical and experimental methods that have only recently become available to explore the detailed structure of these phase boundaries and the factors that influence their structure.