Research Topics
| Eli RuckensteinSummaryAffiliation: University at Buffalo Country: USA Publications
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Publications
Cellulose and glass fiber affinity membranes for the chromatographic separation of biomoleculesEli Ruckenstein
Department of Chemical Engineering, State University of New York at Buffalo, Amherst, New York 14260, USA
Biotechnol Prog 20:13-25. 2004..Numerous affinity ligands were immobilized onto the membranes, and the prepared affinity membranes have been used to separate or purify concanavalin A, peroxidase, protease inhibitors, globulin, fibronectin, and other biomolecules...- Solubility of drugs in aqueous solutions. Part 1. Ideal mixed solvent approximationE Ruckenstein
Department of Chemical Engineering, State University of New York at Buffalo, Amherst, NY 14260, USA
Int J Pharm 258:193-201. 2003..The obtained expression was applied to 32 experimental data sets and the results were compared with the three parameter equations available in the literature... - Treatment of dilute clusters of methanol and water by ab initio quantum mechanical calculationsEli Ruckenstein
Department of Chemical and Biological Engineering and Center for Computational Research, University at Buffalo, State University of New York, Amherst, New York 14260, USA
J Phys Chem A 109:807-15. 2005..The average numbers of the two types of H bonds in the CH(4)O...(H(2)O)(12) and H(2)O...(CH(4)O)(10) clusters have been calculated. Such information could hardly be obtained with the simulation methods... - Recent developments in the kinetic theory of nucleationE Ruckenstein
Department of Chemical and Biological Engineering, SUNY at Buffalo, Buffalo, NY 14260, USA
Adv Colloid Interface Sci 118:51-72. 2005..This can be accounted for by the fact that CNT uses the macroscopic interfacial tension which presumably overpredicts the surface tension of small clusters, and hence underpredicts nucleation rates... - Microscopic description of a drop on a solid surfaceEli Ruckenstein
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, New York 14260, USA
Adv Colloid Interface Sci 157:1-33. 2010.... - Solubility of hydrophobic organic pollutants in binary and multicomponent aqueous solventsE Ruckenstein
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Amherst, New York 14260, USA
Environ Sci Technol 39:1623-31. 2005..The computational method was applied to predict the solubilities of naphthalene and anthracene in ternary, quaternary and quinary aqueous mixed solvents. The results were compared with experiment and good agreement was obtained... - Surface modification and functionalization through the self-assembled monolayer and graft polymerizationE Ruckenstein
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, NY 14260, USA
Adv Colloid Interface Sci 113:43-63. 2005..Finally, we compare and review some surface-modification techniques on the surfaces of polymers, such as two-solvent entrapment, polymer blending, and chemical grafting, which improve their biocompatibility... - Solubility of drugs in aqueous solutions. Part 5. Thermodynamic consistency test for the solubility dataE Ruckenstein
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Amherst, NY 14260, USA
Int J Pharm 292:87-94. 2005..Second, the suggested test was applied to a number of systems representing experimental data regarding the solubility of sparingly soluble substances in aqueous mixed solvents... - Kinetics of heterogeneous nucleation on a rough surface: nucleation of a liquid phase in nanocavitiesEli Ruckenstein
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, NY 14260, USA
J Colloid Interface Sci 351:277-82. 2010..At constant contact angle the nucleation rate increases with increasing curvature of the cavity. The dependence of the nucleation rate on the contact angle is not monotonous... 
Symmetry breaking in confined fluidsEli Ruckenstein
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, New York 14260, USA
Adv Colloid Interface Sci 154:56-76. 2010..In the case of binary mixtures, the occurrence of symmetry breaking also depends on the composition of the confined mixtures...- Effect of solute-solute and solute-solvent interactions on the kinetics of nucleation in liquidsEli Ruckenstein
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, NY 14260, USA
J Colloid Interface Sci 342:528-32. 2010..Such changes are usually small compared with the absolute magnitude of the nucleation rate... - Solubility of drugs in aqueous solutions. Part 2: binary nonideal mixed solventE Ruckenstein
Department of Chemical Engineering, State University of New York at Buffalo, Amherst, NY 14260, USA
Int J Pharm 260:283-91. 2003..It provided slightly better results than the best literature models but has also the advantage of a theoretical basis... - Effect of salts and organic additives on the solubility of proteins in aqueous solutionsEli Ruckenstein
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Amherst, NY 14260, USA
Adv Colloid Interface Sci 123:97-103. 2006..This theory can predict (i) the salting-in or -out effect of a cosolvent and (ii) the initial slope of the solubility curve. Good agreement was obtained between theoretical predictions and experimental results... - Specific ion effects via ion hydration: II. Double layer interactionEli Ruckenstein
Department of Chemical Engineering, State University of New York at Buffalo, Buffalo, NY 14260, USA
Adv Colloid Interface Sci 105:177-200. 2003.... - Solubility of drugs in aqueous solutions. Part 4. Drug solubility by the dilute approximationE Ruckenstein
Department of Chemical Engineering, State University of New York at Buffalo, Amherst 14260, USA
Int J Pharm 278:221-9. 2004..Second, the obtained equation was used to correct the solubilities of drugs calculated via the infinite dilution approximation. It was shown that both procedures provide accurate correlations for the drug solubility... - The structure of nanochannels formed by block copolymer solutions confined in nanotubesHouyang Chen
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, New York 14260 4200, USA
J Chem Phys 131:114904. 2009..The present simulations provide insight regarding the structure of ionic and water channels formed by protein in the phospholipid bilayers of the cell membrane... - First passage time analysis of protein folding via nucleation and of barrierless protein denaturationY S Djikaev
Department of Chemical and Biological Engineering, SUNY at Buffalo, Buffalo, New York 14260, United States
Adv Colloid Interface Sci 146:18-30. 2009..The numerical calculations for two model proteins (one consisting of 124 amino acids and the other of 2500 amino acids) demonstrate that the models can predict folding and unfolding times consistent with experimental data... - Model for the nucleation mechanism of protein foldingY S Djikaev
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, New York 14260, USA
J Phys Chem B 111:886-97. 2007.... - Thermal denaturation of a native protein via spinodal decomposition in the framework of first-passage-time analysisY S Djikaev
Department of Chemical and Biological Engineering, SUNY at Buffalo, Buffalo, New York 14260, USA
Phys Rev E Stat Nonlin Soft Matter Phys 78:011909. 2008..For a numerical illustration, the method is applied to the thermal unfolding of a model protein consisting of 2500 residues... - Self-recognition and aggregation between diblock (charged/neutral) polyelectrolytes by Monte Carlo simulationsJie Feng
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, New York 14260-4200, USA
J Chem Phys 124:124913. 2006..The molecular configurations of the entire chains and of the charged and neutral blocks as well as the radial distribution functions of the charged beads are also investigated... - Preferential hydration and solubility of proteins in aqueous solutions of polyethylene glycolIvan L Shulgin
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Amherst, NY 14260, USA
Biophys Chem 120:188-98. 2006.... - Relationship between preferential interaction of a protein in an aqueous mixed solvent and its solubilityIvan L Shulgin
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Amherst, NY 14260, USA
Biophys Chem 118:128-34. 2005..The results are compared with experiment, and for aqueous sodium chloride mixtures the agreement is excellent, for aqueous sodium acetate and magnesium chloride mixtures the agreement is only satisfactory... - A protein molecule in an aqueous mixed solvent: fluctuation theory outlookIvan L Shulgin
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Amherst, New York 14260, USA
J Chem Phys 123:054909. 2005..5 and 5M and higher concentrations of urea. Our results demonstrated a striking similarity in the hydration of lysozyme at both pHs. It is worthwhile to note that the excesses of urea were only weakly composition dependent on both cases... - A probabilistic approach to the effect of hydrogen bonding on the hydrophobic attractionY S Djikaev
Department of Chemical and Biological Engineering, SUNY at Buffalo, Buffalo, New York 14260, USA
J Chem Phys 130:124713. 2009..It is greater than the overall van der Waals interaction potential of the same hydrophobic particles (with typical Hamaker constants) by at least an order of magnitude... - Temperature effects on the nucleation mechanism of protein folding and on the barrierless thermal denaturation of a native proteinY S Djikaev
Department of Chemical and Biological Engineering, SUNY at Buffalo, Buffalo, New York
Phys Chem Chem Phys 10:6281-300. 2008..The first one roughly mimicks a bovine pancreatic ribonuclease while the second one is a representative of the largest proteins which are extremely difficult to study by straightforward Monte Carlo or molecular dynamics simulations... - Various contributions to the osmotic second virial coefficient in protein-water-cosolvent solutionsIvan L Shulgin
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Amherst, New York 14260, USA
J Phys Chem B 112:14665-71. 2008.... - The effect of hydrogen bonding on the solvent-mediated interaction of composite platesY S Djikaev
Department of Chemical and Biological Engineering, SUNY at Buffalo, 403 Furnas Hall, Buffalo, NY 14260, USA
J Colloid Interface Sci 336:575-83. 2009..When this fraction is 0.5, this contribution can be up to two orders of magnitude larger than the van der Waals interaction (depending on the water density in the vicinity of a plate)... - Dependence of the number of hydrogen bonds per water molecule on its distance to a hydrophobic surface and a thereupon-based model for hydrophobic attractionY S Djikaev
Department of Chemical and Biological Engineering, SUNY at Buffalo, Buffalo, New York 14260, USA
J Chem Phys 133:194105. 2010..Presenting a model for the latter, we also examine the temperature effect on the solvent-mediated interaction of two parallel hydrophobic plates... - Effect of hydrogen bond networks on the nucleation mechanism of protein foldingY S Djikaev
Department of Chemical and Biological Engineering, SUNY at Buffalo, Buffalo, New York 14260, USA
Phys Rev E Stat Nonlin Soft Matter Phys 80:061918. 2009..The range of "residue-cluster" distances, at which the hydrogen bond effect exists, is twice as long for hydrophobic residues as for hydrophilic ones... - Effect of ionized protein residues on the nucleation pathway of protein foldingY S Djikaev
Department of Chemical and Biological Engineering, SUNY at Buffalo, Buffalo, New York 14260, USA
J Chem Phys 128:025103. 2008..3 show that for this protein the time of folding via nucleation is significantly affected by electrostatic interactions only for the unusually low pH of 6.3 and that among all pH's considered pH=7.3 provides the lowest folding time... - The role of hydrogen bond networks in the barrierless thermal denaturation of a native proteinY S Djikaev
Department of Chemical and Biological Engineering, SUNY at Buffalo, Buffalo, New York 14260, USA
J Chem Phys 131:045105. 2009..The extended model is then applied to the unfolding of bovine pancreatic ribonuclease, consisting of 124 residues whereof 43 are hydrophobic (neutral beads are considered to be hydrophobic as well) and 81 hydrophilic... - Temperature effects on the hydrophobic interaction of parallel plates in the framework of the probabilistic approach to hydrogen bondingY S Djikaev
Department of Chemical and Biological Engineering, SUNY at Buffalo, Buffalo, NY 14260, United States
J Colloid Interface Sci 343:510-21. 2010..This attraction decreases as the temperature increases... - Specific ion effects via ion hydration: I. Surface tensionMarian Manciu
Department of Chemical Engineering, State University of New York at Buffalo, Buffalo, NY 14260, USA
Adv Colloid Interface Sci 105:63-101. 2003.... - The polarization model for hydration/double layer interactions: the role of the electrolyte ionsMarian Manciu
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, NY, USA
Adv Colloid Interface Sci 112:109-28. 2004..However, there are conditions under which the polarization model predicts results that cannot be recovered by the traditional theory via parameter fitting... - Aggregation of nanoparticles in a block copolymer bilayerHouyang Chen
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, NY 14260 4200, USA
J Colloid Interface Sci 363:573-8. 2011..At relatively short DPD step times, the particles aggregate in the solvent. As the time increases, the single particles and aggregates penetrate into the membrane... - Nanodrop on a nanorough hydrophilic solid surface: contact angle dependence on the size, arrangement, and composition of the pillarsGersh O Berim
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, NY 14260, USA
J Colloid Interface Sci 359:304-10. 2011..The presence of such a gradient does not allow the formation of a stable nanodrop on the surface. However, asymmetrical metastable nanodrops can be formed... - Microscopic interpretation of the dependence of the contact angle on roughnessGersh O Berim
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, New York 14260, USA
Langmuir 21:7743-51. 2005..It is shown that the theory can explain the nonlinear dependence of cos theta(m) on roughness observed by Krupenkin et al. [Krupenkin, T. N.; Taylor, J. A.; Schneider, T. M.; Yang, S. Langmuir 2004, 20, 3824].(1)... - On the monomer density of grafted polyelectrolyte brushes and their interactionsMarian Manciu
Department of Chemical Engineering, State University of New York at Buffalo, Buffalo, New York 14260, USA
Langmuir 20:8155-64. 2004.... - Local composition in solvent + polymer or biopolymer systemsIvan L Shulgin
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Amherst, NY 14260, USA
J Phys Chem B 112:3005-12. 2008..However, in the dilute range of the macromolecule, the intermolecular interactions between solvent and macromolecule are mainly responsible for the excess. The obtained results shed some light on protein hydration... - Excess around a central molecule with application to binary mixturesIvan L Shulgin
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Amherst, NY 14260, USA
Phys Chem Chem Phys 10:1097-105. 2008.... - Local composition in the vicinity of a protein molecule in an aqueous mixed solventIvan L Shulgin
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Amherst, New York 14260, USA
J Phys Chem B 111:3990-8. 2007..The Schellman exchange model was used to relate the preferential binding parameter in water + lysozyme + urea mixtures to the urea concentration... - Crosslinked glass fiber affinity membrane chromatography and its application to fibronectin separationWei Guo
Department of Chemical Engineering, State University of New York at Buffalo, Buffalo, NY 14260-4200, USA
J Chromatogr B Analyt Technol Biomed Life Sci 795:61-72. 2003..By using a cartridge containing gelatin immobilized affinity membranes followed by another cartridge containing heparin immobilized membranes, fibronectin from human blood plasma could be separated... - On the restabilization of protein-covered latex colloids at high ionic strengthsHaohao Huang
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, NY 14260, USA
Langmuir 21:94-9. 2005..It is suggested that the structural modifications of the protein configuration induced by the electrolyte are responsible for some of the disagreements between experiment and calculations... - Symmetry breaking of the fluid density profiles in closed nanoslitsGersh O Berim
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, New York 14260, USA
J Chem Phys 126:124503. 2007..Hence a spontaneous symmetry breaking of the fluid density distribution in a closed slit with identical walls can take place. On the basis of the results obtained for closed slits, the symmetry breaking in open slits was also examined... - A ternary nucleation model for the nucleation pathway of protein foldingY S Djikaev
Department of Chemical and Biological Engineering, SUNY at Buffalo, Buffalo, New York 14260, USA
J Chem Phys 126:175103. 2007..With a reasonable choice of diffusion coefficients of the residues in the native state and potential parameters, the model predicts folding times in the range of 1-100 s... - Formation and degradation of multicomponent multicore micelles: insights from dissipative particle dynamics simulationsHouyang Chen
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, New York 14260 4200, United States
Langmuir 29:5428-34. 2013.... - Nanodrop of an Ising magnetic fluid on a solid surfaceGersh O Berim
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, New York 14260, United States
Langmuir 27:8753-60. 2011..The obtained results are in qualitative agreement with the experimental data on the contact angle of magnetic drops on a solid surface available in the literature... - Sorption on deformable solids. Density functional theory approachGersh O Berim
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, New York 14260, United States
J Phys Chem B 115:13271-4. 2011..In addition, it reveals that the oscillations that occur in the fluid density when the solid density is uniform are damped by the nonuniform solid. The theory provides the amounts of fluid adsorbed as well as absorbed by the solid... - Size dependence of the contact angle of a nanodrop in a nanocavity: Density functional theory considerationsGersh O Berim
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, New York 14260, USA
Phys Rev E Stat Nonlin Soft Matter Phys 83:021603. 2011..It is argued that this dependence might affect strongly, for instance, the rate of heterogeneous nucleation on rough surfaces, which is usually calculated under the assumption of constant contact angle... - Kinetic theory of heterogeneous nucleation; effect of nonuniform density in the nucleiGersh O Berim
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, NY 14260, USA
J Colloid Interface Sci 355:259-64. 2011..The nonuniformity of the FDD in the nucleus decreases the nucleation rate when compared to the uniform FDD... - Supramolecular AB diblock copolymersXiaowu Yang
Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA
Angew Chem Int Ed Engl 43:6471-4. 2004 - Contact angles of nanodrops on chemically rough surfacesGersh O Berim
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, New York 14260
Langmuir 25:9285-9. 2009..All these peculiarities, as well as the contact angle hysteresis, can be explained by accounting for the local conditions in the vicinity of the leading edges of the drop... - The driving force of channel formation in triheteropolymers confined in nanocylindrical tubesHouyang Chen
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, New York 14260 4200, USA
J Chem Phys 130:024901. 2009..The present treatment may provide some insight regarding the formation of protein channels in the phospholipid bilayers of the cell membrane... - Dependence of the macroscopic contact angle on the liquid-solid interaction parameters and temperatureGersh O Berim
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, New York 14260, USA
J Chem Phys 130:184712. 2009.... - Nanoparticle aggregation in the presence of a block copolymerHouyang Chen
Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, New York 14260 4200, USA
J Chem Phys 131:244904. 2009..Aggregates have been generated for repulsive interactions larger than the former critical value or smaller than the latter one...