Zobrazeno 1 - 10
of 152
pro vyhledávání: '"Podgornik, Rudi"'
We consider Euclidean path integrals with higher derivative actions, including those that depend quadratically on acceleration, velocity and position. Such path integrals arise naturally in the study of stiff polymers, membranes with bending rigidity
Externí odkaz:
http://arxiv.org/abs/1906.08626
Publikováno v:
Soft Matter 14, 6058 (2018)
We revisit the charge-regulation mechanism of macro-ions and apply it to mobile macro-ions in a bathing salt solution. In particular, we examine the effects of correlation between various adsorption/desorption sites and analyze the collective behavio
Externí odkaz:
http://arxiv.org/abs/1804.03063
Publikováno v:
Europhys. Lett. 120, 26001 (2017)
We generalize the concept of charge regulation of ionic solutions, and apply it to complex fluids with mobile macro-ions having internal non-electrostatic degrees of freedom. The suggested framework provides a convenient tool for investigating system
Externí odkaz:
http://arxiv.org/abs/1708.06921
Publikováno v:
Langmuir 33, 34-44 (2017)
We extend our previous study of surface tension of ionic solutions and apply it to the case of acids (and salts) with strong ion-surface interactions. These ion-surface interactions yield a non-linear boundary condition with an effective surface char
Externí odkaz:
http://arxiv.org/abs/1608.07797
In this chapter we review the electrostatic properties of charged membranes in aqueous solutions, with or without added salt, employing simple physical models. The equilibrium ionic profiles close to the membrane are governed by the well-known Poisso
Externí odkaz:
http://arxiv.org/abs/1603.09451
Publikováno v:
Europhys. Lett. 113, 26004 (2016)
The three most commonly-used boundary conditions for charged colloidal systems are constant charge (insulator), constant potential (conducting electrode) and charge regulation (ionizable groups at the surface). It is usually believed that the charge
Externí odkaz:
http://arxiv.org/abs/1510.05442
Recent studies have shown that single-stranded viral RNAs fold into more compact structures than random RNA sequences with similar chemical composition and identical length. Based on this comparison it has been suggested that wild-type viral RNA may
Externí odkaz:
http://arxiv.org/abs/1410.7836
Publikováno v:
Soft Matter, 12 (2016) 441
We study thermal, fluctuation-induced hydrodynamic interaction forces in a classical, compressible, viscous fluid confined between two rigid, planar walls with no-slip boundary conditions. We calculate hydrodynamic fluctuations using the linearized,
Externí odkaz:
http://arxiv.org/abs/1310.1965
Publikováno v:
Physical Review E 88, 052703 (2013)
The effect of magnesium ion Mg2+ on the dielectric relaxation of semidilute DNA aqueous solutions has been studied by means of dielectric spectroscopy in the 100 Hz-100 MHz frequency range. De Gennes-Pfeuty-Dobrynin semidilute solution correlation le
Externí odkaz:
http://arxiv.org/abs/1307.0715
Publikováno v:
Europhys. Lett. 106, 16002 & 19903 (Erratum) (2014)
We study the surface tension of electrolyte solutions at the air/water and oil/water interfaces. Employing field-theoretical methods and considering short-range interactions of anions with the surface, we expand the Helmholtz free energy to first-ord
Externí odkaz:
http://arxiv.org/abs/1305.3142