TITLE

Solute-solvent interaction strength of disaccharide aqueous solutions: Trehalose primate

AUTHOR(S)
Branca, C.; Faraone, A.; Magazu`, S.; Maisano, G.; Migliardo, P.; Mineo, P.; Villari, V.
PUB. DATE
April 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 513 Issue 1, p47
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Results of density, ultrasonic velocity, and DSC measurements performed on aqueous solutions of the homologous disaccharides trehalose, maltose and sucrose, are reported. To get some insight into the mechanisms of cryopreservation that characterize these systems, and to clarify the reasons that make trehalose the most effective bioprotector, we investigate the volumetric and thermic properties of trehalose, maltose and sucrose aqueous solutions as a function of concentration and temperature. What conclusively emerges is the presence of a more collapsed conformation for trehalose in respect with the other disaccharides, indicative of a much more marked solute-solvent interaction strength. Moreover, DSC findings indicate a greater effectiveness of trehalose in destroying the tetrahedral network of water compatible with the formation of ice and support the hypothesis of a higher “fragile” thermodynamic character of the trehalose-water system at high dilution. © 2000 American Institute of Physics.
ACCESSION #
6028392

 

Related Articles

  • Smaller, faster chemistry. Jensen, Klavs // Nature;6/25/1998, Vol. 393 Issue 6687, p735 

    Reports on investigations into chemical kinetics, which is the study of mechanism and rates of chemical processes. How mixing effects chemical combinations; The role of turbulence; Methods used to achieve short diffusion lengths.

  • On the deduction of chemical reaction pathways from measurements of time series of concentrations. Samoilov, Michael; Arkin, Adam; Ross, John // Chaos;Mar2001, Vol. 11 Issue 1, p108 

    We discuss the deduction of reaction pathways in complex chemical systems from measurements of time series of chemical concentrations of reacting species. First we review a technique called correlation metric construction (CMC) and show the construction of a reaction pathway from measurements on...

  • Kinetics of vapor-phase mercury uptake by virgin and sulfur-impregnated activated carbons. Vidic, Radisav D.; Min-Tsang Chang; Thurnau, Robert C. // Journal of the Air & Waste Management Association;Mar98, Vol. 48 Issue 3, p247 

    Studies the kinetics of vapor-phase mercury uptake by virgin and sulfur-impregnated activated carbons. Importance of the rate of vapor-phase mercury removal to the study; Adsorption of mercury by carbon; Results of the study.

  • Introduction to a kinetics-sensitive double-step voltcoulometry. Thurzo, I.; Gmucova, K.; Pavlasek, J. // Review of Scientific Instruments;Sep99, Vol. 70 Issue 9, p3723 

    Introduces a kinetics-sensitive double-step voltcoulometry. Alternative to state-of-the-art versions of voltammetry; Integration of a transient current flowing in response to a potential step across the electrochemical cell; Simultaneous processing by a deliberately selected time-domain...

  • Efectos relativist's en cinética química.  // Latin-American Journal of Physics Education;Sep2010, Vol. 4 Issue 3, p562 

    No abstract available.

  • Dynamics of vibrationally excited ozone formed by three-body recombination. II. Kinetics and mechanism. Rawlins, W. T.; Caledonia, G. E.; Armstrong, R. A. // Journal of Chemical Physics;11/1/1987, Vol. 87 Issue 9, p5209 

    Spectrally resolved infrared chemiluminescence from vibrationally excited ozone, O3(v), has been used to study the reaction kinetics of O3(v) in discharged O2/Ar mixtures at ∼1 Torr and 80–150 K. Dependences of the excited state number densities on temperature and O2 mole fraction...

  • Synthesis of a bulk YBa[sub 2]Cu[sub 4]O[sub 8] superconductor by addition of Ag[sub 2]O at an.... Ohara, Satoshi; Matsuda, Motohide; Watanabe, Yuichi; Takata, Masasuke // Applied Physics Letters;7/29/1991, Vol. 59 Issue 5, p603 

    Reports the synthesis of a bulk YBa[sub 2]Cu[sub 4]O[sub 8] superconductor. Addition of Ag[sub 2]O as reaction-rate enhancer at an ordinary pressure of oxygen; Confirmation of the superconducting nature of the sample; Determination of the zero resistance.

  • Chemical aspects of NOx scrubbing. Chironna, Robert J.; Altshuler, Boris // Pollution Engineering;Apr99, Vol. 31 Issue 4, p32 

    Describes the nitrogen oxides (NOx) chemical reactions associated with wet removal processes. Formation of ozone; Coexistence of nitric oxide and nitrogen dioxide; Oxidation rate of NO in air at ambient temperature; Effect of NOx concentration on relative NOx removal efficiency; Effect of pH on...

  • Global least-squares analysis of large, correlated spectral data sets and application to chemical... Stilbs, Peter; Paulsen, Kim // Review of Scientific Instruments;Dec1996, Vol. 67 Issue 12, p4380 

    Describes a general, nonlinear least-squares, direct-search strategy for analyzing time-dependence of single or multicomponent spectral data sets. Named component resolved (CORE) spectroscopy; Improvement of the quality of evaluated data through CORE processing's intrinsic S/N enhancement;...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics