NER: Towards Self-Assembled Metallodendrimers for Multi-Anion Sensing

本研究的重点涉及制备金属树枝状纳米传感器架构的荧光在阴离子的存在下的特定变化敏感。 结构单元将由能够阴离子结合的受体部分和配体组成，通过荧光π缀合的低聚物连接。金属-配体配位将驱动纳米级树枝状结构的组装。 选择配体和金属模板以形成具有金属-配体电荷转移态的荧光三（喹啉）AL 3+、二（喹啉）Zn 2+或三（1，10-菲咯啉）Os 2+配合物。 所得的金属树枝状聚合物将形成高度荧光的结构，该结构在可以与结构中包含的受体结合的阴离子物质的存在下对光学性质的变化敏感。探索性研究（NER）奖，有机和高分子化学计划和化学特别项目办公室正在支持该部门的Pavel Anzenbacher博士的研究。鲍灵绿色大学的化学系。 Anzenbacher教授将专注于自组装光学纳米传感器的开发和表征，用于多分析物环境中的化学传感。 该研究可能对生产用于在非常低的浓度下感测多种阴离子基质（如无机阴离子、肥料和药物）的材料产生重要的更广泛的影响

The focus of this research involves the preparation of metallodendritic nanosensor architectures susceptible to a specific change in fluorescence in the presence of anions. The building blocks will be composed of a receptor moiety capable of anion binding, and a ligand, connected by a fluorescent pi-conjugated oligomer. The metal-ligand coordination will drive the assembly of nanosized dendritic architectures. The ligand and metal template are selected to form fluorescent tris(quinolato)AL3+, bis(quinolato)Zn2+ or tris(1,10-phenanthroline)Os2+ complexes exhibiting metal-to-ligand charge transfer states. The resulting metallodendrimers would form a highly fluorescent architecture that would be susceptible to a change in optical properties in the presence of anionic substances that can bind to the receptors contained in the architecture.With this Nanoscale: Exploratory Research (NER) award, the Organic and Macromolecular Chemistry Program and the Chemistry Office of Special Projects are supporting the research of Dr. Pavel Anzenbacher of the Department of Chemistry at Bowling Green University. Professor Anzenbacher will focus his work on the development and characterization of self-assembled optical nanosensors for chemical sensing in multianalyte environments. The research could have an important broader impact on the production of materials for sensing multiple anionic substrates such as inorganic anions, fertilizers, and pharmaceuticals at very low concentrations