Light Emitting Polymeric Metal Complexes

该奖项由无机，生物无机和有机化学计划支持卡桑德拉L教授的研究。弗雷泽在弗吉尼亚大学制备和研究发光金属络合物。 聚合物硼配合物，如多发射二氟硼二苯甲酰甲烷聚乳酸，作为研究的重点。 将详细研究配体修饰、聚合物组成和分子量、溶剂和温度对强荧光和不寻常的氧敏感室温磷光的影响。 硼生物材料还具有双光子吸收能力，是溶剂化变色的，作为敏感的探针的本地介质。 这些特征对于发射颜色调谐以及生物成像和氧感测是重要的。 为了这些目的，纳米颗粒的制造，排放，氧敏感性，和降解也将在水悬浮液中进行研究。 这项研究是跨学科和合作。 研究生与众多科学家和工程师，工业界和UVA专利基金会互动，以解决科学问题，并追求材料应用。 该项目提供了机会，通过设计物质写作项目和弗吉尼亚大学关于医学和环境中金属的新高级课程，与更广泛的受众分享科学的兴奋。

This award by the Inorganic, Bioinorganic, and Organometallic Chemistry Program supports research by Professor Cassandra L. Fraser at the University of Virginia to prepare and study light emitting metal complexes. Polymeric boron complexes, such as multi-emissive difluoroboron dibenzoylmethane polylactide, serve as the focus of the study. Effects of ligand modifications, polymer composition and molecular weight, solvent, and temperature on the intense fluorescence and the unusual oxygen sensitive, room temperature phosphorescence will be investigated in detail. The boron biomaterials also possess two-photon absorption capabilities and are solvatochromic, serving as sensitive probes of the local medium. These features are important for emission color tuning and for biological imaging and oxygen sensing. Toward these ends, nanoparticle fabrication, emission, oxygen sensitivity, and degradation will also be investigated in aqueous suspensions. This research is interdisciplinary and collaborative. Graduate students interact with numerous scientists and engineers, industry, and the UVA Patent Foundation to address scientific questions and to pursue materials applications. This project presents opportunities to share the excitement of science with broader audiences through the Designing Matter writing projec and a new advanced course at the University of Virginia on metals in medicine and the environment.