<br><br><div class="gmail_quote">---------- Forwarded message ----------<br>From: <b class="gmail_sendername">Graciela Gonzalez</b> <span dir="ltr"><<a href="mailto:ggra26@yahoo.com.ar">ggra26@yahoo.com.ar</a>></span><br>
Date: 2013/3/11<br>Subject: lunes 18 de marzo - 13 hs - Seminario DQIAQF - INQUIMAE<br>To: Andrea Peralta <<a href="mailto:andrea@qi.fcen.uba.ar">andrea@qi.fcen.uba.ar</a>><br><br><br><div><div style="font-size:12pt;font-family:times new roman,new york,times,serif">
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<div class="MsoNormal" style="text-autospace:none"><span style="font-family:"Arial","sans-serif"" lang="ES">Seminarios
DQIAQF - INQUIMAE, lunes 18 de marzo - 13 hs.<br>
<br>
Aula de Seminarios INQUIMAE - DQIAQF<br>
Facultad de Ciencias Exactas y Naturales<br>
Ciudad Universitaria - Pab. 2 - Piso 3</span></div>
<div style="margin-bottom:0cm;margin-bottom:.0001pt;text-align:center" align="center"><span style="font-family:"Arial","sans-serif"" lang="ES"><br>
</span><span style="font-family:"Arial","sans-serif"" lang="EN-GB">David Andelman<br>
School of Physics and Astronomy<br>
Tel Aviv University, 69978 Tel Aviv Israel<br>
<br>
Title:<br>
-----<br>
Ionic Solutions in Biological and Soft-Matter Physics:<br>
a Mini Review and Recent Results<br>
<br>
Abstract<br>
--------</span></div>
<div style="margin-bottom:0cm;margin-bottom:.0001pt;text-align:justify"><span style="font-family:"Arial","sans-serif"" lang="EN-GB"><br>
In aqueous solutions, dissolved ions interact strongly with the surrounding
water and surfaces, thereby modifying solution properties in an ion-specific
manner. The Poisson-Boltzmann description of ionic solutions has been
successfully used in predicting charge distributions and interactions between
charged macromolecules. However, when dealing with various aspects of real
physical, chemical and biological systems, the Poisson-Boltzmann has several
noticeable shortcomings. Here, we incorporate several additional effects to the
ionic solution free-energy and review how this strategy has been used to
predict some of the ways ion-specific effects can modify the forces acting
within and between charged interfaces immersed in salt solutions. Among others,
they include steric effects due to finite ion size close to interfaces, local
variations of the solution dielectric constant due to the presence of ions,
mixed solvent effects, direct ion-surface interactions and charge regulation,
and solutions of antagonist ions.</span></div>
</div></div></div><br>