Fluorocarbon and Peptide Film Growth from Polyatomic Ion Beams

这项名为“从多原子离子束中生长氟碳和多肽膜”的项目得到了分析和表面化学计划的支持。这项工作由伊利诺伊大学芝加哥分校的卢克·汉利博士领导的研究小组开展，将研究如何使用大小为4-100个原子的共价束缚多原子离子束来生长光滑的纳米结构薄膜。离子束允许受控地将化学功能转移到表面。该项目包括两项相关研究。(1)将研究氟碳(FC)薄膜在聚合物和硅表面的生长。第二，多肽离子束将用于在聚合物上生长生物分子薄膜。利用原子力显微镜和X射线光电子能谱对薄膜进行表征。这两项研究都试图确定多原子离子如何影响单个颗粒表面的薄膜生长，重点是了解等离子体中的薄膜生长。这项研究风险相对较高，但将对表面化学的基本理解产生重大影响。特别是，它将提供离子与表面相互作用机制的详细信息。离子束将同时选择质量和能量。氟碳薄膜具有保护性、抗蛋白质、透气性和/或光学性能，在生物材料、光学、传感器和电子领域有应用。这项研究的结果将对在表面科学领域工作的工业界、国家实验室和学术界感兴趣。

This project entitled "Fluorocarbon and Peptide Film Growth from Polyatomic Ion Beams" is supported by the Analytical and Surface Chemistry Program. The work, by the research group headed by Dr. Luke Hanley at the University of Illinois - Chicago, will examine the use of covalently bound, polyatomic ion beams, of the size 4-100 atoms, for the growth of smooth and nanotextured thin films. The ion beams permit the controlled transfer of chemical functionality to a surface. There are two related studies included in the project. (1) Studies will be performed on the growth of fluorocarbon (FC) films on polymers and silicon surfaces. Second, peptide ion beams will be used to grow biomolecular thin films on polymers. AFM and XPS will be used to characterize the films. Both studies seek to determine how polyatomic ions affect film growth on individual particle surfaces with an emphasis on understanding film growth from plasmas.This research is of relatively high risk but will have a significant impact on the fundamental understanding of surface chemistry. In particular, it will provide details of the mechanisms of the interactions of ions with surfaces. The ion beams will be both mass and energy selected. Fluorocarbon films can have protective, protein resistant, gas permeable and/or optical properties which have application in the areas of biomaterials, optics, sensors and electronics. The results of this research will be of interest to industry, national labs and academics working in the area of surface science.