allura red (ar) is a widely used colorant in food industry, but there is debate on its potential security risk. in this study, in vitro inhibitory properties of the dye against carbonic anhydrase (ca) were evaluated. the esterase activity of purified ca decreased in the presence of ar, in a dose-dependent manner. regarding literature review and observed results, this preliminary study may provi...

Reverse micellar systems are nanofluids with unique properties that make them attractive in high selectivity separation processes, especially for biological compounds. Understanding the phase behavior and thermodynamic properties of these nanosystems is the first step in process design. Separation of components by these nanosystems is performed upon contact of aqueous and reverse micellar phase...

Topological indices are the real number of a molecular structure obtained via molecular graph G. Topological indices are used for QSPR, QSAR and structural design in chemistry, nanotechnology, and pharmacology. Moreover, physicochemical properties such as the boiling point, the enthalpy of vaporization, and stability can be estimated by QSAR/QSPR models. In this study, the QSPR (Quantitative St...

Group additivity calculation of the standard molal thermodynamic properties of aqueous amino acids, polypeptides and unfolded proteins as a function of temperature, pressure and ionization state J. M. Dick, D. E. LaRowe, and H. C. Helgeson Department of Earth and Planetary Science, University of California, Berkeley, CA 94720-4767, USA Received: 5 September 2005 – Accepted: 18 September 2005 – ...

Very accurate thermodynamic potential functions are available for fluid water, ice, seawater and humid air covering wide ranges of temperature and pressure conditions. They permit the consistent computation of all equilibrium properties as, for example, required for coupled atmosphereocean models or the analysis of observational or experimental data. With the exception of humid air, these poten...

The equations connecting speed of sound with other thermodynamic properties gases and liquids, suitable for numerical integration respect to temperature, density, pressure, along isentropes, are derived. Algorithms their solution given too. They tested several substances (e.g., Ar, N2, O2, CH4, CO2, H2O) in wide ranges pressure temperature. Average absolute deviation thermal is 0.0129% supercri...