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SUMMARY:CANCELLED: PChem Seminar: "Exploring Fast Chemistry in Aqueous Nan
 odrops with Mass Spectrometry"
DTSTART:20200312T171500
DTEND:20200312T191500
DTSTAMP:20260928T162218Z
UID:a9d001b35e48080b59286c740e3ed8c7f475f4520a9e06bfca3b29db
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof Evan WILLIAMS\, UC Berkeley\, USA\nCANCELLED\n\nExploring
  Fast Chemistry in Aqueous Nanodrops with Mass Spectrometry\n\nProf. Dr. E
 van R. Williams\nDepartment of Chemistry\, University of California\, Berk
 eley\n\nA virtually unlimited variety of molecules that are confined in ga
 seous aqueous nanodrops of various sizes can be produced with electrospray
  ionization. The chemistry inside these nanodrops can be monitored using a
 n assortment of mass spectrometry based methods. Rapid mixing experiments 
 using theta-glass capillaries can be used to probe fast reactions\, includ
 ing protein folding\, on time-scales that are significantly faster than po
 ssible to achieve using conventional mixing apparatus. Rapid temperature j
 ump experiments combined with ion mobility can catch short-lived folding i
 ntermediates that provide unique insights into protein folding/unfolding p
 athways. Reaction times as short as one microsecond can be achieved using 
 thousands of times less material than that required using conventional mix
 ing apparatus.\nInfrared photodissociation spectroscopy of small ion-conta
 ining aqueous nanodrops reveals effects of ion confinement and provides ne
 w information about the length scale at which ions can affect the hydrogen
 -bonding network of water molecules. Precise thermochemical measurements c
 an be made using a newly calibrated ion nanocalorimetry method. Accurate e
 lectrochemical red-ox potentials that cannot be measured using conventiona
 l methods can be obtained and ultimately used to establish an absolute ele
 ctrochemical scale that is based entirely on experimental measurements.\n\
 nCANCELLED
LOCATION:BCH 2201 https://plan.epfl.ch/?room==BCH%202201
STATUS:CONFIRMED
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