V
Valentina V. Vasilevskaya
Researcher at A. N. Nesmeyanov Institute of Organoelement Compounds
Publications - 110
Citations - 2426
Valentina V. Vasilevskaya is an academic researcher from A. N. Nesmeyanov Institute of Organoelement Compounds. The author has contributed to research in topics: Amphiphile & Polyelectrolyte. The author has an hindex of 21, co-authored 99 publications receiving 2255 citations. Previous affiliations of Valentina V. Vasilevskaya include Russian Academy of Sciences & Moscow State University.
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Journal ArticleDOI
Large discrete transition in a single DNA molecule appears continuous in the ensemble.
TL;DR: In this paper, the authors observed giant double-stranded DNA chains by fluorescence microscopy in an aqueous environment and found that the coil-globule transition of T4DNA, 166kbp, induced by spermidine is markedly discrete for individual chains, and continuous for their ensemble average.
Journal ArticleDOI
Collapse of single DNA molecule in poly(ethylene glycol) solutions
TL;DR: In this article, a theory is proposed taking into account the polyelectrolyte effect and redistribution of PEG within DNA coils, which makes it possible to describe the dependence of critical value, c, of polyethylene glycol (PEG) concentration at the point of DNA collapse on the degree of polymerization, P, and on the concentration of low molecular salt, ns.
Book ChapterDOI
Conformational transitions in polymer gels: Theory and experiment
TL;DR: In this paper, a review of theoretical and experimental results on the swelling behavior and collapse transition in polymer gels obtained by our group at Moscow State University is presented, where the main attention is paid to polyelectrolyte networks where the most important factor is additional osmotic pressure created by mobile counter ions.
Journal ArticleDOI
Discrete coil-globule transition of single duplex dnas induced by polyamines
TL;DR: The results showed that the collapse of isolated DNA chains induced by either bivalent or multivalent cations is discrete, and the critical concentration of cation for inducing the transition was lowest for the tetravalent cation and highest for the bivalent cation.
Journal ArticleDOI
Conformational Polymorphism of Amphiphilic Polymers in a Poor Solvent
TL;DR: It is found that, depending on the interaction between H and P sites, a variety of thermodynamically stable anisometric chain morphologies are possible in a solvent selectively poor for H sites, including disklike structures, stretched strings of intramolecular micelles, and cylindrical-shaped conformations.