学术报告：Conjugated Polyelectrolytes: Fundamentals and Application to Biosensors and Light Activated Antimicrobials
报告题目：Conjugated Polyelectrolytes: Fundamentals and Application to Biosensors and Light Activated Antimicrobials
报 告 人：Kirk S. Schanze（University of Florida）
报告时间：2014年9月30日（星期二） 下午2：00
报告地点：嘉定园区学术活动中心多功能厅
报告简介：
Conjugated polyelectrolytes (CPE) feature -conjugated backbones that are functionalized with polar, ionic side chains. These polymers have very strong optical absorptivity due to the conjugated electronic system, and the HOMO-LUMO gap can be controlled by tuning the electronic nature of the monomer units. CPEs are polymer amphiphiles, and consequently they self-assemble in solution into aggregates, and they can be deposited onto surfaces to afford nanostructured films by using the layer-by-layer method. Due to the -conjugated backbone, CPEs exhibit photonic properties, exhibiting strong absorption in the visible region and strong fluorescence. The interaction between the conjugated backbone and the polyions that are linked to the polymer gives the materials “stimuli responsive properties”, wherein the polymer’s optical properties are strongly modulated by the presence of small concentrations of ionic species in solution. Applications of the polymers in biosensing and light-activated antimicrobials will be discussed.
Leading References:
1) Jiang, H. et al. "Conjugated Polyelectrolytes: Synthesis, Photophysics and Applications", Angew. Chem. Int. Ed. Engl. 2009, 48, 2300.
2) Liu, Y. et al.“Conjugated Polyelectrolytes as Fluorescent Sensors”, J. Photochem. Photobiol. C. 2009, 10, 173-190.
报 告 人：Kirk S. Schanze（University of Florida）
报告时间：2014年9月30日（星期二） 下午2：00
报告地点：嘉定园区学术活动中心多功能厅
报告简介：
Conjugated polyelectrolytes (CPE) feature -conjugated backbones that are functionalized with polar, ionic side chains. These polymers have very strong optical absorptivity due to the conjugated electronic system, and the HOMO-LUMO gap can be controlled by tuning the electronic nature of the monomer units. CPEs are polymer amphiphiles, and consequently they self-assemble in solution into aggregates, and they can be deposited onto surfaces to afford nanostructured films by using the layer-by-layer method. Due to the -conjugated backbone, CPEs exhibit photonic properties, exhibiting strong absorption in the visible region and strong fluorescence. The interaction between the conjugated backbone and the polyions that are linked to the polymer gives the materials “stimuli responsive properties”, wherein the polymer’s optical properties are strongly modulated by the presence of small concentrations of ionic species in solution. Applications of the polymers in biosensing and light-activated antimicrobials will be discussed.
Leading References:
1) Jiang, H. et al. "Conjugated Polyelectrolytes: Synthesis, Photophysics and Applications", Angew. Chem. Int. Ed. Engl. 2009, 48, 2300.
2) Liu, Y. et al.“Conjugated Polyelectrolytes as Fluorescent Sensors”, J. Photochem. Photobiol. C. 2009, 10, 173-190.
报告人简历：
Biography - KS Schanze.docx
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