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SUMMARY:IGM Colloquium - Nanomechanical mass spectrometry: the long road t
 o applications
DTSTART:20171107T110000
DTEND:20171107T121500
DTSTAMP:20261002T022302Z
UID:eaa278585b28124d0556ff7005a0828fa6253e0957110628396f5c38
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Marc Sansa\nNanomechanical resonators are on the way to be
 come an attractive instrument for the analysis of high-mass species. Dr. M
 arc Sansa will present his group's work to overcome two of the major roadb
 locks for the viability of these sensors: their limit of detection and sma
 ll capture area.\n\nNano-electro-mechanical systems (NEMS) have demonstrat
 ed record limits of detection in high performance force and mass sensing. 
 These properties make them excellent candidates for mass spectrometry (NEM
 S-MS) applications\, especially for high-mass species which are difficult 
 to analyse with conventional methods. Even though NEMS-MS technology is ap
 proaching maturity\, some issues still prevent its application as a viable
  alternative to conventional MS: the limit of detection of current NEMS-MS
  technologies\, and their small capture area. He will explain his group's 
 recent work aimed at addressing these roadblocks.\n\nHe recently demonstra
 ted that resonance frequency fluctuations degrade the limit of detection o
 f monocrystalline resonating sensors by several orders of magnitude. Here 
 he will explain this phenomenon in detail\, and discuss its broad implicat
 ions in resonant sensing.\n\nFinally\, he will address the small capture a
 rea of NEMS sensors\, which entails unpractically long analysis times. He 
 will explain how this can be circumvented by employing NEMS arrays\, and h
 is group's recent application of these devices in mass spectrometry.\n\n\n
 Bio:\nDr. Marc Sansa obtained a degree in Telecommunications from the UAB 
 (Universitat Autònoma de Barcelona) in 2008. He then obtained a PhD in El
 ectronics in 2013 from the UAB\, working with Prof. Francesc Pérez-Murano
  in the IMB-CNM (Institute of Microelectronics of Barcelona). He is curren
 tly a post-doctoral researcher in the Microsystems Laboratory of the CEA /
  Leti\, working on the application of nanomechanical resonators for sensin
 g applications.
LOCATION:MED 0 1418 https://plan.epfl.ch/?room==MED%200%201418
STATUS:CONFIRMED
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