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Inez M. Weidinger

Inez M. Weidinger

Technical University of Berlin, Berlin

Title: Multifunctional SERS active silver-hybrid nanocomposites in (Bio)analytics

Biography

Inez Marita Weidinger has studied Physics in Mainz, Glasgow and Berlin. She received her PhD in Physical Chemistry from the Freie Universität Berlin, Germany, in 2003. She is now a professor for Physical Chemistry at the Technical University Berlin. In her research she combines surface enhanced vibrational spectroscopy with electrochemical techniques to understand adsorbate/surface interactions in analytical devices and biosensors. In this field she has published more than 30 papers in leading peer-reviewed journals and has written several book chapters.

Abstract

Surface enhanced resonance Raman spectroscopy (SERRS) can be used in analytical science to identify target molecules at very low concentrations. The combination of this method with other techniques such as magnetic manipulation or electrochemistry allows constructing new analytical devices that exhibit several functionalities. In my talk I will show several examples of such multifunctional SERRS Hybrid devices: In the first example the use of [email protected] and [email protected] nanoparticles for selective detection and separation of target proteins in a mixed sample is demonstrated [1]. In the second example [email protected] nanoparticles are presented that are capable of detecting and magnetically removing small toxic molecules in water [2]. [email protected] nanoparticles are used in the third example to detect, collect and catalytically decompose toxic pollutants [3]. Here also the positive effect of plasmonic Ag nanoparticles on photocatalytic degradation is discussed. The last example demonstrates how SERRS spectro-electrochemistry is able to get insight into the functionality of enzymatic biosensors [4].