<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content="text/html; charset=us-ascii" http-equiv=Content-Type>
<META name=GENERATOR content="MSHTML 8.00.6001.19258"></HEAD>
<BODY>
<DIV><FONT size=2 face=Arial><SPAN class=207421909-09072013>Dear
All</SPAN></FONT></DIV>
<DIV><FONT size=2 face=Arial><SPAN class=207421909-09072013>I need to follow the
aggregation of some peptides of about 4 KDa . I would like to estimate the
dimension of these aggregates. </SPAN></FONT></DIV>
<DIV><FONT size=2 face=Arial><SPAN class=207421909-09072013>Since my experience
is mostly in protein sedimentation, I was wondering if you have some tips for
me. Which wavelength do you use for absorbance optic? Which is the best
concentration to run?</SPAN></FONT></DIV>
<DIV><FONT size=2 face=Arial><SPAN class=207421909-09072013>At which speed do
you suggest me to run the experiment?</SPAN></FONT></DIV>
<DIV><FONT size=2 face=Arial><SPAN class=207421909-09072013>Any help will be
appreciated.</SPAN></FONT></DIV>
<DIV><FONT size=2 face=Arial><SPAN class=207421909-09072013>Thanks in
advance</SPAN></FONT></DIV>
<DIV><FONT size=2 face=Arial><SPAN
class=207421909-09072013>Marina</SPAN></FONT></DIV>
<DIV><FONT size=2 face=Arial><SPAN
class=207421909-09072013></SPAN></FONT> </DIV>
<DIV><FONT size=2 face=Arial><SPAN
class=207421909-09072013></SPAN></FONT> </DIV>
<DIV> </DIV>
<DIV align=left>MARINA FASOLINI<BR>Structural Chemistry<BR><BR>Nerviano Medical
Sciences <A
href="http://www.nervianoms.com/">http://www.nervianoms.com</A><BR>Viale Pasteur
10<BR>20014 Nerviano - Milano<BR>marina.fasolini@nervianoms.com <BR>Tel.
+390331581462<BR>Fax. +390331581360<BR></DIV>
<DIV> </DIV></BODY></HTML>