Enhancing the Performance and Applications of Sol-Gel Derived Materials via Template Based Strategies

通过基于模板的策略增强溶胶-凝胶衍生材料的性能和应用

• 批准号: 0618220
• 负责人: Maryanne Collinson
• 金额: $ 37万
• 依托单位: Virginia Commonwealth University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-08-01 至 2009-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0618220&HistoricalAwards=false
• 关键词: Enhancing; Performance; Applications; Sol; Gel

Professor Maryanne Collinson of Kansas State University is supported by the Analytical and Surface Chemistry program to investigate templating silicate thin films. The PI has detected specific molecules by first using them as a template in a sol gel on an electrode. The molecule is removed, leaving a negative image of the species. On exposure to a solution of the molecule, the electrochemical responses is enhanced over the response to other similarly shaped species. In the present work, this team is using bacteria as the template species to make a bacteria-specific surface. The bacteria will yield rods and corkscrew shaped pores. In addition to use as biosensors, the cavities also may serve as microreactors and templates to form metal and oxide nanoparticles. In another part of the project, the molecule-templated films are being developed as electrochemical luminescent sensors, for example for glucose. Titanium dioxide is being investigated as a sol gel matrix. The anticipated applications of these materials include new nanostructured materials and chemical sensors. The ability to create microcompartments in materials will be useful as microreactors and micro-reservoirs of chemicals that can be used as needed, for example, in drug delivery. As methods become more sophisticated through fundamental projects such as this, it is possible that we will have hierarchically ordered porous materials for applications such as pharmacy and biosensing. The work connects chemistry, microbiology, materials science and engineering. The majority of the PI's students come from groups that are under-represented in the sciences, so, if this trend continues, the research will help society by increasing diversity in the scientific workforce.

堪萨斯州立大学的Maryanne Collinson教授得到了分析和表面化学计划的支持，以研究模板硅酸盐薄膜。 PI首先将它们用作电极上的SOL凝胶中的模板来检测到特定分子。去除分子，留下物种的负图像。暴露于分子溶液时，对其他类似形状的物种的反应增强了电化学反应。在目前的工作中，该团队将细菌用作模板物种来制作细菌特异性表面。细菌将产生杆和开瓶器形状的孔。除了用作生物传感器外，腔体还可以用作微反应器和模板形成金属和氧化物纳米颗粒。 在项目的另一部分中，分子模拟的膜被开发为电化学发光传感器，例如用于葡萄糖。二氧化钛作为溶胶凝胶基质正在研究。这些材料的预期应用包括新的纳米结构材料和化学传感器。 在材料中创建微型营的能力将是可作为微反应器和微分化化学物质的能力，例如，可以根据需要在药物输送中使用。 随着方法通过诸如此类的基本项目变得更加复杂，我们可能会为药学和生物传感等应用提供层次的多孔材料。 这项工作连接化学，微生物学，材料科学和工程。 PI的大多数学生来自科学中代表性不足的群体，因此，如果这种趋势继续进行，研究将通过增加科学劳动力的多样性来帮助社会。