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<font size=5><br>
</font><div align="center"><font size=4><b>Los siguientes dos seminarios
son los últimos del primer semestre. Continuarán luego del receso (11 de
agosto)<br><br>
</font><font size=5>Lunes 21 de julio de 2008 - 13 hs<br><br>
</b>Aula de Seminarios del INQUIMAE, 3er piso Pab. II <br><br>
<br>
</font><font size=6><b>Dr. Thibaud Coradin<br>
</font><font size=4><i>Laboratoire de Chimie de la Matière Condensée,
Paris<br><br>
<br><br>
</i></font><font size=6>Bio-controlled materials<br><br>
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Abstract:<br>
The observation of natural living mineralized structures indicates that a
real synergy exists between the biological component, which controls the
formation of the inorganic phase, and the mineral component, which
stabilizes the living system chemically and physically. On this basis, we
are trying to elaborate hybrid or composite materials that associate
biopolymers or living cells with mineral phases obtained by soft chemical
routes for applications in pharmacy and biotechnology. In this
presentation, we will show how it is possible to use biological
macromolecules to control the growth of nanostructured oxides and metals
in order to design drug carriers and biosensors. We will also address the
possibility to use whole cells as bioreactors for nanomaterial
production, a first step towards "living" materials.<br><br>
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<br>
<div align="center"><b>Miércoles 23 de julio de 2008 - 13 hs<br><br>
</b>Aula de Seminarios del INQUIMAE, 3er piso Pab. II <br><br>
<br>
</font><font size=6><b>Dr. Spiros S. Skourtis<br>
</font><font size=4><i>Department of Physics, University of Cyprus,
CY1678, Nicosia, Cyprus<br><br>
<br><br>
</i></font><font size=6>Structure-function and dynamics-function
relationships in biomolecular electron transport systemss<br><br>
</b></font></div>
Abstract:<br>
Electron transfer reactions are ubiquitous in biology and in chemistry.
In biology, electron transfer reactions are observed in both protein and
DNA biomolecular systems. They are important for a variety of biochemical
processes that include the bioenergetic pathways, and the controls of
development and disease. Biological electron transfer mechanisms range
from tunnelling to thermally activated hopping. The important
determinants of a biomolecular electron transfer rate are the structure
and the motion of the electron transfer molecule, and the nature of the
electron donating and electron accepting states.<br>
I give a brief introduction to the theory of biological electron transfer
rates mediated by tunneling, and discuss current trends in this research
field together with some recent results of simulations of protein
electron transfer systems. <br><br>
<br><br>
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