Events Calendar View

• Mathematical Physics Seminar Oct 16, 2013

  Asymptotic expansions in the WKB method

  

  Guest: Brad Bassler, Dept. of Philosophy, UGA
  Wednesday, October 16, 2013 4:40 pm - 5:30 pm
  Location:

  iCal
• Departmental Colloquium Oct 17, 2013

  Mechanosensitive Fluorescent Dyes -- Molecular Rotors: Fundamentals and Applications

  

  Guest: Prof. Mark Haidekker, UGA College of Engineering
  Thursday, October 17, 2013 4:00 pm - 5:00 pm
  Location: Physics Auditorium (202)

  iCal

  Many fluorescent dyes change their photophysical properties with changes in their environment. Examples include fluorescent dyes that are sensitive to the environment's polarity, pH, presence of ions, temperature or electrostatic potential. A group of fluorophores whose photophysical mechanism is excited- state intamolecular charge transfer (ICT) have been termed "molecular rotors" because of their additional capability to form twisted conformations. Conformational changes are associated with changes in the ICT dipole, and twisting during the excited state changes the dye's fluorescence emission.

  Intramolecular twisting depends on the environment, most notably, microviscosity. Molecular rotors have therefore been established as nanoscale, real-time viscosity reporters with the potential to exceed mechanical viscometers in precision, however, confounding factors that influence measured intensity need to be eliminated. Lifetime spectroscopy and engineered ratiometric dyes present possible solutions.

  Molecular rotors have also been reported to show sensitivity towards fluid shear stress. The underlying photophysical mechanism is not yet understood, but two competing possible explanations involve polar-polar interaction and the formation of photoisomers. Data in support of both hypotheses exist, and it is likely that no single mechanism fully explains shear-sensitivity. From the application side, however, molecular rotors provide unsurpassed sensitivity at low flow rates combined with high spatial resolution.

• CSP Lunch Seminar Oct 22, 2013

  Autocorrelation study for a coarse-grained polymer model

  

  Guest: Kai Qi, UGA Center for Simulational Physics
  Tuesday, October 22, 2013 12:30 pm - 1:30 pm
  Location: CSP Conference Room (Room 322)

  iCal
• Mathematical Physics Seminar Oct 23, 2013

  The WKB approximation for the Schroedinger equation

  

  Guest: Brad Bassler, Dept. of Philosophy, UGA
  Wednesday, October 23, 2013 4:40 pm - 5:30 pm
  Location:

  iCal
• Departmental Colloquium Oct 24, 2013

  The PhD Skills --- a personal view

  

  Guest: Prof. Yiping Zhao, UGA Department of Physics and Astronomy
  Thursday, October 24, 2013 4:00 pm - 5:00 pm
  Location: Physics Auditorium (202)

  iCal

  For some college students, the pursuit of a PhD degree is a very important goal for their future career. This period of time could be one of the most precious/critical moments in their life for their skill development. Facing this changing and competitive modern world, what are the necessary skills that a graduate student needs to develop? I will give some of my personal thoughts on this subject based on my own experience, and hope they are useful for some of the graduate and undergraduate students.

• CSP Lunch Seminar Oct 29, 2013

  Autocorrelation study for a coarse-grained polymer model

  

  Guest: Kai Qi, UGA Center for Simulational Physics
  Tuesday, October 29, 2013 12:30 pm - 1:30 pm
  Location: CSP Conference Room (Room 322)

  iCal

Page 48 of 121, showing 6 records out of 723 total, starting on record 283, ending on 288