Phase Transitions and Domain Structures in Monolayers

教授knobler是由资助的理论和 计算化学计划，继续他的研究朗缪尔 两亲分子的单层。 他正在研究自我中的长程有序 组织单层，以及在这两个层中发生的相变， 尺寸组件。 荧光显微术和布鲁斯特角 显微镜用于区分对应于 不同的分子取向。 的实验结果进行比较 与这些纹理的平均场理论已经发展。 这些方法也将被用来检查结构， 马赛克纹理的生长动力学， 凝聚单层相。 朗缪尔单分子层是单分子层的膜， 形成于空气和水的界面。 它们是由 两亲分子，例如长链脂肪酸、酯和 酒精。 这样的电影提供了一个研究二维的机会 系统，它们提供了对生物化学系统的结构见解 例如脂质双层。 这些单层可以作为 LB膜与固体载体的结合，并且可以用作载体。 传感器和电子设备。

Professor Knobler is supported by a grant from the Theoretical and Computational Chemistry Program to continue his studies of Langmuir monolayers of amphiphiles. He is examining long range order in self organizing monlayers, and the phase transitions which occur in these two dimensional assemblies. Fluorescence microscopy and Brewster angle microscopy are used to distinguish the optical textures corresponding to different molecular orientations. The experimental results are compared with a mean-field theory of these textures which has been developed. These methods will also be employed to examine the structures and kinetics of growth of mosaic textures that are characteristic of certain condensed monolayer phases. Langmuir monolayers are films of a single molecular layer that can be formed at the interface between air and water. They are composed of amphiphilic moleucles such as long chain fatty acids, esters and alcohols. Such films provide an opportunity to study two-dimensional systems, and they provide structural insights into biochemical systems such as lipid bilayers. These monolayers can be transferred as Langmuir-Blodgett films to solid supports, and may be employed as sensors, and as electronic devices.