***First Announcement and Call for Papers***
Photophysical Dynamics in
Biological Molecules
Pacifichem
2005 - Symposium 252
Honolulu, Hawaii, December
15-20, 2005
Symposium
Description
Excited electronic states are important in many biological contexts.
Electronic energy transfer is highly
optimized in light harvesting proteins, while ultrafast nonradiative
decay is responsible for the remarkable
photostability of the DNA bases. In other biomolecules, excited
electronic states may not occur naturally, but
are of paramount interest as spectroscopic probes that report on
dynamical motions over a wide range of time
scales. This symposium will highlight new frontiers in excited states
of biological and biomimetic molecules.
Model peptides and isolated DNA bases are increasingly studied in
molecular beams, where the unperturbed excited
states can be observed. On the other hand, time-resolved and
steady-state spectroscopic techniques are used to
study the photophysical properties of biomolecules in condensed-phase
environments. Here, experiments on large
systems reveal how supramolecular architecture modifies the
photophysical pathways of single chromophores.
Theoretical studies provide a natural bridge: quantum chemical
calculations can now be performed at high levels
of theory for single chromophores, while promising new methods are
emerging for excitations in multichromophoric macromolecules. Sessions
with invited and contributed talks are planned on photoactive proteins,
natural and
biomimetic light harvesting, DNA photophysics, and theoretical advances.
Symposium
Format
The symposium features 30 invited talks and a number of contributed
talks that will be selected from abstracts submitted through the
Pacifichem Web Site:
http://www.pacifichem.org/.
Poster presentations
are also encouraged. Abstracts can be submitted any time between
January 17 and April 13, 2005. Contributors will be informed of the
status (oral or poster presentation) of their submission by May 30,
2005. Further information is available at the symposium web site:
http://www.chemistry.ohio-state.edu/~kohler/pacifichem/.
The
Organizers
Bern Kohler, Department of Chemistry, The Ohio State University,
Columbus, Ohio, U.S.A.
e-mail:
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Sheng-Hsien Lin, Institute of Atomic and Molecular Sciences, Academia
Sinica
Taipei, Taiwan, R.O.C.
e-mail:
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Albert Stolow, Femtosecond Science, Steacie Institute for Molecular
Sciences, Ottawa, Ontario, Canada
e-mail:
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Keitaro Yoshihara, Toyota Chemical and Physical Research Institute,
Nagakute, Aichi 480-1192, Japan
e-mail:
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