时间：2024年4月19日（周五） 16:00-17:30

Time: 16:00-17:30，Friday, April19, 2024

地点：西湖大学云谷校区E10-205

Venue: E10-205, Yungu Campus

主持人: 西湖大学工学院 尤晓 博士

Host: Dr. Xiao You, Westlake Fellow, Westlake University

语言：英文

Language: English

主讲嘉宾/Speaker：

Prof.  Renato Zenobi

ETH Zürich，

Department of Chemistry and Applied Biosciences

主讲人简介/Biography:

Renato Zenobi is Professor for Analytical Chemistry at ETH Zurich. He is best known for using modern mass spectrometry methods to solve problems in the life sciences, for his contributions to understanding ion formation mechanisms in laser mass spectrometry, and for the invention of tip-enhanced Raman spectroscopy, a method that allows one to gain detailed molecular information on the nanometer scale. Together with clinicians at the University Hospital Zurich, he is developing a mass spectrometric “chemical nose” that could revolutionize medical diagnosis. He is the recipient of numerous fellowships and awards, most recently a 2017 ERC Advanced Grant from the EU, the 2019 “Golden Owl” from ETH for excellence in teaching, and the 2023 ACS Award in Spectrochemical Analysis. Renato also enjoys sports (skiing, ski mountaineering, running, unicycling), and is a semi-professional violinist, performing regularly in concerts. He plays orchestral and chamber music as well as gipsy jazz.

讲座摘要/Abstract:

Tip-enhanced Raman Spectroscopy (TERS) is a nanoscale chemical analysis and imaging method with a spatial resolution of <10 nm, even at ambient conditions that relies on the enhancement of the local electromagnetic field by a plasmonic metal nanostructure that is scanned over the sample by means of a scanning probe microscope, using either AFM or STM feedback. While AFM and STM are chemically "blind", TERS affords full spectroscopic information in every pixel. The TERS working principle and capabilities will first be discussed, including tip fabrication, and how to avoid sample decomposition during imaging studies of fragile samples over extended periods of time. In the second, main part of this presentation, applications of TERS to the spatially resolved chemical analysis and imaging of surfaces and molecular nanomaterials will be discussed. Examples from recent TERS studies in our laboratory will be presented, including two-dimensional polymers (2DPs), biological nanostructures such as model membranes, polymer surfaces, and catalyst surfaces.

讲座联系人/Contact:

工学院尤晓

youxiao@westlake.edu.cn