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DTSTAMP:20260417T041557
DTSTART:20120912T113000
SEQUENCE:0
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DTEND:20120912T130000
URL:https://murmitoyen.com/events/vanille/udem/detail/69862
LOCATION:Université de Montréal - Pavillon Roger-Gaudry\, 2900\, chemin d
 e la Tour\, Montréal\, QC\, Canada\, H3T 1J6
SUMMARY:Conférence Barré 1 avec le professeur Richard Van Duyne
DESCRIPTION:Titre de la conférence no 1 Molecular Plasmonics: Nanoscale S
 pectroscopy and SensingLe Département de chimie a le plaisir et l’honne
 ur d’accueillir le professeur Richard Van Duyne\, du Département de ch
 imie de la Northwestern University\, dans le cadre des conférences Barré
 . Il donnera deux conférences différentes en anglais les 12 et 13 sep
 tembre 2012.Résumé de la conférence no 1During the last few years\, the
 re has been an explosion of interest and activity in the field of plasmon
 ics. The goal of plasmonics is to control and manipulate light on the nan
 ometer length scale using the properties of the collective electronic exci
 tations in noble metal films or nanoparticles\, known as surface plasmons
 . An improved understanding of the interactions between adsorbed molecule
 s and plasmonic nanostructures (i.e. molecular plasmonics) is having a si
 gnificant impact in a number of research areas. These include surface-enh
 anced Raman spectroscopy (SERS)\, localized surface plasmon resonance (LSP
 R) spectroscopy\, sub-wavelength optical microscopy\, and nanolithography
 .In the first part of this lecture\, I will provide some background materi
 al on the basic physical concepts underlying molecular plasmonics with an
  emphasis on SERS and LSPR spectroscopy. Next\, I will turn to the area o
 f single particle surface enhanced Raman spectroscopy (SPSERS). In this s
 ection I will provide some answers for several fundamental questions such
  as: (1) what is the largest possible enhancement factor (EF) and (2) what
  nanostructure produces the largest EF. Our approach to answering these q
 uestions involved the development of new tools using single nanoparticle 
 SERS and single nanoparticle LSPR spectroscopy spatially correlated with 
 high resolution transmission electron microscopy (HRTEM).In the second pa
 rt of this lecture\, I will present recent results on using high resolutio
 n LSPR spectroscopy to detect molecular binding events\, protein conforma
 tion changes\, and gas sensing. This will be followed by a discussion of 
 the development of new instrumentation for high throughput plasmonic bios
 ensing and the study of the transport dynamics of plasmonic nanoparticles
 . I will conclude this lecture with an overview of SERS applications with
  the focus on recent work to develop an in vivo SERS glucose sensor.À pro
 pos des conférences BarréAncrées dans une longue tradition qui date de 
 1979\, les conférences Barré rendent hommage à la générosité du regr
 etté professeur Roger Barré\, qui a enseigné la chimie à l’Universit
 é de Montréal tout au long de sa carrière. En l’honneur de son père\
 , il a créé par testament la Fondation Henri-Barré\, dont les revenus p
 ermettent au Département de chimie d’inviter des scientifiques de renom
  à présenter une série de deux conférences devant la communauté de ch
 imie montréalaise.Profil et intérêts de recherche
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