Chemistry Seminar Series: Professor Frank BrightExport this event to calendar

Wednesday, November 7, 2012 — 2:30 PM EST

Xerogel-nanocrystallite hybrids for optical sensing

Professor Frank Bright
Department of Chemistry
University of Buffalo

Wednesday, November 7, 2012
2:30 p.m.
C2-361 (Reading Room)

Abstract:  Sol-gel processing is widely used to create low-k materials, thermal insulations, and stationary phases in the separation sciences. Xerogels, porous sol-gel derived materials formed by solvent evaporation at or near ambient conditions, are also attractive platforms for chemical sensor development. Over the past 20 years our research group has devoted significant time and effort to elucidate the chemistry within amorphous silica-based xerogels as a means to intelligently guide the development of useful xerogel-based materials for use in areas ranging from chemical sensors to anti-fouling coatings. More recently we have been coupling amorphous silica-based xerogels to photoluminescent nanocrystalline materials (e.g., silicon quantum dots and porous silicon) as a way to create analyte-responsive nanoscopic sensors. The speaker will summarize his research team’s pathway to developing hybrid silica-silicon nanosensors.

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