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Projects / Programmes source: ARIS

Biophysics and soft condensed matter

Periods
Research activity

Code Science Field Subfield
1.02.00  Natural sciences and mathematics  Physics   

Code Science Field
P340  Natural sciences and mathematics  Lipids, steroids, membranes 
B120  Biomedical sciences  Molecular biophysics 
T390  Technological sciences  Polymer technology, biopolymers 
Evaluation (rules)
source: COBISS
Researchers (9)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  05483  PhD Milan Brumen  Natural sciences and mathematics  Researcher  2001 - 2003  441 
2.  05974  PhD Mojca Čepič  Social sciences  Researcher  2001 - 2003  815 
3.  08589  PhD Rudolf Podgornik  Natural sciences and mathematics  Head  2001 - 2003  702 
4.  02013  PhD Saša Svetina  Medical sciences  Researcher  2001 - 2003  556 
5.  18142  PhD Andreja Šarlah  Natural sciences and mathematics  Researcher  2002 - 2003  89 
6.  08583  PhD Brigita Urbanc  Natural sciences and mathematics  Researcher  2001 - 2003  32 
7.  13355  PhD Nataša Vaupotič  Natural sciences and mathematics  Researcher  2002 - 2003  285 
8.  13415  PhD Primož Ziherl  Natural sciences and mathematics  Researcher  2001 - 2003  334 
9.  01068  PhD Boštjan Žekš  Medical sciences  Researcher  2001 - 2003  644 
Organisations (1)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0106  Jožef Stefan Institute  Ljubljana  5051606000  87,078 
Abstract
Pseudo-Casimir force in the paranematic phase was calculated. It was shown that the range of this force coincides with the range of the mean field force, and that it is repulsive which was not noted previously. On the basis of the theory of polymer nematics we derived the equation of state for high density DNA, i.e. for the phase in between the crystal phase and the isotropic solution. Furthermore, we developed a theory for the renormalization of the elastic constant of the polymer chain with long range attractive interaction between its monomers. At high enough value of the interaction constant the theory predicts the condensation of a polymer into a toroid shape, in accord with experimental observations. Shapes of axially strained phospholipid vesicles were calculated and their stability determined. A theoretical model was developed that describes the observed difference in pH between the inner and outer solution of hollow polyelectrolyte capsules of few micrones in diameter. A phenomenological model of achiral smectics that are the new kind of polar liquid crystals was proposed which predicts three stable phases in such systems.
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