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SUMMARY:MechE Colloquium: Nanomechanical mass spectrometry: the long road 
 to applications
DTSTART:20171107T121500
DTEND:20171107T131500
DTSTAMP:20260527T194555Z
UID:4a716e77091fbe10764a6a27276ede318a5dbb0b8f106dfb7dda668c
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Marc Sansa\, Microsystems Laboratory\, CEA-Leti\nAbstract:
 \nNanomechanical resonators are on the way to become an attractive instrum
 ent for the analysis of high-mass species. Dr. Marc Sansa will present his
  group's work to overcome two of the major roadblocks for the viability of
  these sensors: their limit of detection and small capture area.\n\nNano-e
 lectro-mechanical systems (NEMS) have demonstrated record limits of detect
 ion in high performance force and mass sensing. These properties make them
  excellent candidates for mass spectrometry (NEMS-MS) applications\, espec
 ially for high-mass species which are difficult to analyse with convention
 al methods. Even though NEMS-MS technology is approaching maturity\, some 
 issues still prevent its application as a viable alternative to convention
 al 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 addre
 ssing these roadblocks.\n\nHe recently demonstrated that resonance frequen
 cy fluctuations degrade the limit of detection of monocrystalline resonati
 ng sensors by several orders of magnitude. Here he will explain this pheno
 menon in detail\, and discuss its broad implications in resonant sensing.\
 n\nFinally\, he will address the small capture area of NEMS sensors\, whic
 h entails unpractically long analysis times. He will explain how this can 
 be circumvented by employing NEMS arrays\, and his group's recent applicat
 ion of these devices in mass spectrometry.\n\nBio:\nDr. Marc Sansa obtaine
 d a degree in Telecommunications from the UAB (Universitat Autònoma de Ba
 rcelona) in 2008. He then obtained a Ph.D. in Electronics in 2013 from the
  UAB\, working with Prof. Francesc Pérez-Murano in the IMB-CNM (Institute
  of Microelectronics of Barcelona). He is currently a post-doctoral resear
 cher in the Microsystems Laboratory of the CEA / Leti\, working on the app
 lication of nanomechanical resonators for sensing applications.
LOCATION:MED 0 1418 https://plan.epfl.ch/?room==MED%200%201418
STATUS:CONFIRMED
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