From: Francisco Lopes <flopes@chagas.biof.ufrj.br>
  To  : RASMB@BBRI.HARVARD.EDU
  Date: Tue, 9 Mar 1999 10:42:01 +0000

equilibrium sedimentation

  We are looking for data of equilibrium  sedimentation of aqueous 
sucrose solutions and/or  solution of any macromolecule (binary 
solution), to  check a theoretical approach. In the formalism 
that we are developing, the pressure effect is taken  into account. 
So it is important that these data were  obtained in modern 
ultracentrifuges. To do this comparison it is necessary the
 following data obtained by means of experiments  in binary 
solutions:

        Density as a function of radial position
        Initial concentration
        Rotation velocity in centrifuge
        Volume of solution used
        Temperature of experiment
        Molecular weight of solute
        Partial specific volume of solute

   We would very glad if there is somebody 
  interested in establishing a collaboration with us.

  Sincerely,

  Francisco J. P. Lopes

  Universidade Federal do Rio de Janeiro/ Instituto de Biofisica.

  E-mail: flopes@chagas.biof.ufrj.br