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DNA Binding of Iron(II)-Phenanthroline Complexes: Effect of Methyl Substitution on Thermodynamic Parameters Mudasira, Naoki Yoshiokab, and Hidenari Inoueb a Department of Chemistry, Gadjah Mada University, Sekip Utara, P.O. Box Bls. 21, Yogyakarta55281, Indonesia b Department of Applied Chemistry, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan Reprint requests to Prof. Dr. Hidenari Inoue. Fax: +81 45 566 1551. E-mail: inoue@applc.keio.ac.jp or Prof. Dr. Mudasir. Fax: +62 274 545188. E-mail: mudasir@ugm.ac.id Z. Naturforsch. 2008, 63b, 37

Thermodynamic parameters governing the stereoselective degradation of arylglycerol-B-aryl ether bonds in milled wood lignin under kraft pulping conditions Behzad C. Ahvazi and dim it^-is S . A~;qyr.yl-opoulos, * Paprican and Department of Chemistry, McGill University, and Pulp and Paper Research Centre, MontrCal, Canada Key~w-ds: Kinetics, Milled wood lignin, Thermodynamic para- meters, Kraft pulping, Arylglycerol-B-arylether structures, Eryfhl-o and Tlzlro isomers, 3'P NMR spectroscopy. SUMMARY During this investigation, softwood @ic,ea nirrriana

Thermodynamic Parameters in Immunoassay Clin Chem Lab Med 1998; 36(6):353–354 © 1998 by Walter de Gruyter · Berlin · New York Marc H. V. Van Regenmortel UPR 9021-Immunochimie des Peptides et des Virus, Institut de Biologie Moléculaire et Cellulaire du CNRS, Strasbourg Cedex, France Although affinity and kinetic measurements on their own provide useful information regarding the suitabil- ity of antibodies for various immunoassays, a thermo- dynamic analysis provices additional information that throws light on the molecular forces at work in the antigen

combination of these thermodynamic parameters helps describe the metal–ligand complexation equilibrium, as it is a tool to quantitatively predict chemical speciation and solubility. Previous studies have reported the complexation and dissolution of Tc(IV) with EDTA in NaCl media. Gu et al. reported that the addition of 2.5 mM EDTA increases Tc(IV) solubility from ~10 −8 M to ~4×10 −7 M at pH 6 over the course of 12 days and that EDTA stabilized Tc(IV) against re-oxidation [ 7 ]. Boggs et al. determined the stability constants for Tc(IV)-EDTA complexes at varying ionic

water and make it suitable for food and drug O/W nanodispersions [ 5 ]. For example, several different mathematical models have been developed to evaluate the influence of temperature on solubility of bioactive compounds [ 1 ]. Subcritical water is defined as underpressurized water at higher temperature, which preserves its liquid state at these conditions, but its polarity tends to methanol polarity [ 1 , 8 ]. Therefore, the effect of temperature on thermodynamic parameters of the prepared O/W nanodispersions is essential to improve the solubility of oily

Z. Phys. Chem. 216 (2002) 1005–1020  by Oldenbourg Wissenschaftsverlag, München Transfer Thermodynamic Parameters of Local Anesthetic Lidocaine in Ethanol–Water Mixtures. Effect of Preferential Solvation By Ibrahim Shehatta∗ Chemistry Department, Faculty of Science, United Arab Emirates University, Al-Ain 17551, UAE (Received April 23, 2001; accepted in revised form September 19, 2001) Thermodynamic of Transfer / Preferential Solvation / Solute-Solvent Interactions / Solvatochromic Parameters / Local Anesthetic Lidocaine / Ethanol–Water Mixtures The dissociation

transition state (TS) changes under VSC by monitoring the thermodynamic parameters of the desilylation reaction of PTA as a function of the strong coupling strength. Light–matter strong coupling, for example VSC, occurs when the resonance energy exchange between the molecular vibration and the eigen mode of an electromagnetic cavity (Fabry–Pérot cavity) proceeds faster than any other decay process [ 1 ]. This results in hybrid light–matter states, called the polaritonic states (P+ and P−), which are visible as split vibrational modes separated by the Rabi splitting energy

 + W) cosolvent mixtures so far. Hence, the solubility data of OMT in binary (P + W) cosolvent compositions including neat P and neat W at T  = 298.2–318.2 K and p  = 0.1 MPa are investigated in this research work. The obtained solubility data of OMT recorded in this research work was regressed with Van’t Hoff model (VHM), modified Apelblat model (MAM), Yalkowsky-Roseman model (YRM), Jouyban-Acree model (JAM) and Jouyban-Acree-Van’t Hoff model (JAVHM). Various thermodynamic parameters for OMT were estimated using apparent thermodynamics analysis of OMT solubility. The

THERMODYNAMIC PARAMETERS OF HELlX-COlL TRANSITIONS IN POLYPEPTIDE CHAINS 0. ß. PTITSYN Institute of Protein Research, Academy of Seiences of the USSR. Poustchino. Moscow Region. USSR ABSTRACT The aim of this paper is to outline new possibilities of more detailed thermo- dynamic analysis of helix-coil transition parameters, particularly with respect to their splitting into energy and entropy terms. Because of difticulties with the ternary systems, water--organic solvent-polypeptide, or, two organic solvents- polypeptide, caused particularly by the

Zeitschrift für Physikalische Chemie Neue Folge, Bd. 72, S. 91-98 (1970) Crystal Energies, Thermodynamic Parameters and Solubilities of some Tetraalkylammonium Halides By M. F. C. Ladd Department of Chemical Physics, University of Surrey, Guildford, Surrey, England (Received August 3, 1970) Abstract The crystal energies of a number of tetraalkylammonium halides have been calculated. Associated thermodynamic parameters relating to hydration and solution have been derived and are discussed in terms of the proposed structure model. Introduction Crystal energies and