64 citations · 235 across the 11 of their papers we have counts for
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Charge inversion in DNA-amphiphile complexes: Possible application to gene therapy
P. S. Kuhn, Y. Levin, M. C. Barbosa
We study a complex formation between the DNA and cationic amphiphilic molecules. As the amphiphile is added to the solution containing DNA, a cooperative binding of surfactants to…
Complexation of DNA with Cationic Surfactant
P. S. Kuhn, Marcia C. Barbosa, Y. Levin
Transfection of an anionic polynucleotide through a negatively charged membrane is an important problem in genetic engineering. The direct association of cationic surfactant to DNA…
Polyelectrolyte Solutions with Multivalent Salts
Paulo S. Kuhn, Yan Levin, Marcia C. Barbosa
We investigate the thermodynamic properties of a polyelectrolyte solution in a presence of {\it multivalent} salts. The polyions are modeled as rigid cylinders with the charge dist…
Complex Formation Between Polyelectrolytes and Ionic Surfactants
Paulo S. Kuhn, Yan Levin, Marcia C. Barbosa
The interaction between polyelectrolyte and ionic surfactant is of great importance in different areas of chemistry and biology. In this paper we present a theory of polyelectrolyt…
Rod-like Polyelectrolytes in Presence of Monovalent Salt
Paulo S. Kuhn, Yan Levin, Marcia C. Barbosa
We investigate the properties of rigid polyelectrolyte solutions in presence of monovalent salt. The free energy within the Debye-Hückel-Bjerrum (DHBj) theory [M. E. Fisher and Y.…
Melting of a colloidal crystal
P. S. Kuhn, A. Diehl, Y. Levin +1
A melting transition for a system of hard spheres interacting by a repulsive Yukawa potential of DLVO form is studied. To find the location of the phase boundary, we propose a simp…