Sample records for SOLVACION (solvation)
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1

EFECTO DE ALGUNOS SOLVENTES ORGÁNICOS EN SATURACIÓN SOBRE LAS FUNCIONES TERMODINÁMICAS DE DISOLUCIÓN DEL NAPROXÉN EN MEDIOS ACUOSOS A pH FISIOLÓGICO/ EFFECT OF SOME ORGANIC SOLVENTS IN SATURATION ON THE THERMODYNAMIC FUNCTIONS OF DISSOLUTION FOR NAPROXEN IN AQUEOUS MEDIA AT PHYSIOLOGICAL pH

MORA G., Carolina P.; BARBOSA B., Helber J.; MARTÍNEZ R., Fleming
2007-01-01

Resumen en español El naproxén (NAP) es un anti-inflamatorio no esteroidal de amplio uso en la actualidad; sin embargo, sus propiedades fisicoquímicas aún no han sido totalmente estudiadas. Como una contribución a la caracterización fisicoquímica del NAP en solución acuosa, en la presente investigación se evalúa el efecto de algunos solventes orgánicos en saturación acuosa sobre las funciones termodinámicas de solución del NAP a pH fisiológico. A partir de valores de solubilid (mas) ad a diferentes temperaturas, mediante las ecuaciones de Gibbs y de van't Hoff, se determinan las funciones termodinámicas energía libre de Gibbs, entalpía y entropía, para los procesos de solución y de solvatación del NAP en tres medios acuosos a pH 7,4 y saturados, cada uno de ellos con octanol, W(ROH), miristato de isopropilo, W(MIP) o cloroformo, W(CLF). Los resultados se comparan con los obtenidos para el mismo fármaco en buffer puro, W, presentados previamente en la literatura. La solubilidad del NAP a 25,0 °C se incrementa en el siguiente orden: W(ROH) Resumen en inglés Naproxen (NAP) is a widely used non-steroidal anti-inflammatory drug, whose physicochemical properties have not been thoroughly studied. As a contribution to the physicochemical characterization of NAP in aqueous solution, we evaluated the effect of some organic solvents in aqueous saturation on the thermodynamic functions of a NAP solution at physiological pH. Based on solubility values at different temperatures, using the equations of Gibbs and Van´t Hoff, the thermody (mas) namic functions Gibb´s free energy, enthalpy and enthropy were determined for the solution and salvation processes of NAP in three aqueous saturated media at pH 7,4, each one of them with octanol W(ROH), isopropyl myristate W(IPM), or chloroform W(CLF). Results were compared with those obtained for NAP in pure buffer, W, previously reported. Solubility of NAP at 25º C increased in the following order: W(ROH)

Scientific Electronic Library Online (Spanish)

3

The structure of Rimonabant in the solid state and in solution : An experimental and theoretical study

Alcorta, Ibon; Alvarado, Mario; Elguero, José; Garcia-Granda, Santiago; Goya, Pilar; Jimeno, M. Luisa; Menendez-Taboada, Laura
2009-01-01

Digital.CSIC (Spain)

4

The hydration of Cu2+: Can the Jahn-Teller effect be detected in liquid solution?

Chaboy, J.; Muñoz-Páez, Adela; Merkling, Patrick J.; Sánchez Marcos, Enrique
2006-02-01

Digital.CSIC (Spain)

5

Synthesis and structure of chiral-at-metal complexes with the ligand (S)-2-[(Sp)-2-(diphenylphosphino)ferrocenyl]-4-isopropyloxazoline

Carmona, Daniel; Medrano, Roberto; Dobrinovich, Isabel T.; Lahoz, Fernando J.; Ferrer, Joaquina; Oro, Luis A.
2006-12-15

Digital.CSIC (Spain)

6

Spectral simulations of polar diatomic molecules immersed in He clusters: application to the ICl (X) molecule

Villarreal, Pablo; Lara Castells, M. Pilar de; Prosmiti, Rita; Delgado Barrio, Gerardo; López Durán, David; Gianturco, Franco Antonio; Jellinek, J.
2007-08-13

Digital.CSIC (Spain)

7
8

Raman spectra of (He)N-Br2(X) clusters: The role of boson/fermion statistics in a quantum solvent

López Durán, David; Lara Castells, M. Pilar de; Delgado Barrio, Gerardo; Villarreal, Pablo; Paola, C. Di.; Gianturco, Franco Antonio; Jellinek, J.
2004-08-15

Digital.CSIC (Spain)

9

Pyrazole derivatives of fatty acid amides as ppar-alpha receptor specific activators, preparation method thereof and use of same

Rodríguez de Fonseca, Fernando; Macías González, Manuel; Serrano Criado, Mª Antonia; Goya Laza, Mª Pilar; Hernán Alvarado, Mario; Elguero Bertolini, José; Jagerovic, Nadine
2009-04-23

Digital.CSIC (Spain)

10

Polar di-halogen molecules solvated in bosonic helium clusters: The paradigm of ICl(X)

Lara Castells, M. Pilar de; Prosmiti, Rita; Delgado Barrio, Gerardo; López Durán, David; Villarreal, Pablo; Gianturco, Franco Antonio; Jellinek, J.
2006-11-28

Digital.CSIC (Spain)

11

Origin of the Short-Range, Strong Repulsive Force between Ionic Surfactant Layers

Faraudo, Jordi; Bresme, Fernando

4 pages, 3 figures.-- PACS nrs.: 68.15.+e, 02.70.Ns, 68.05.Cf, 82.45.Mp. | We study the electrostatic interaction between two ionic surfactant layers by performing molecular dynamic simulations of salt-free thin water films coated by surfactants (Newton black films). We find a strong exponentially d...

DRIVER (Spanish)

13

Initial stages of water adsorption on NaCl (100) studied by scanning polarization force microscopy

Verdaguer, Albert; Sacha, G. M.; Luna, Mónica; Ogletree, Frank D.; Salmerón, Miquel
2005-09-23

Digital.CSIC (Spain)

15

High-Charge Smectite in Spanish "Raña" Soils

Aragoneses, F. J.; García González, María Teresa
1991-01-01

Digital.CSIC (Spain)

16

Hexanol-Induced Order-Disorder Transitions in Lamellar Self-Assembling Aggregates of Bacteriochlorophyll c in Chlorobium tepidum Chlorosomes

Arellano, Juan B.; Torkkeli, Mika; Tuma, Roman; Laurinmäki, Pasi A.; Melo, Thor Bernt; Ikonen, Teemu P.; Butcher, Sarah J.; Serimaa, Ritva E.; Psencik, Jakub
2008-03-01

Digital.CSIC (Spain)

17

Exploring the Use of Conformationally Locked Aminoglycosides as a New Strategy to Overcome Bacterial Resistance

Bastida, Ágatha; Hidalgo, Ana; Chiara, José Luis; Torrado, Mario; Corzana, Francisco; Pérez Cañadillas, José Manuel; Groves, Patrick; García-Junceda, Eduardo; González, Carlos; Jiménez-Barbero, Jesús; Asensio, Juan Luis
2006-01-01

Digital.CSIC (Spain)

18

Doped helium clusters analyzed through quantum chemistry methods

Lara Castells, M. Pilar de; Prosmiti, Rita; López Durán, David; Delgado Barrio, Gerardo; Villarreal, Pablo; Gianturco, Franco Antonio; Jellinek, J.
2007-06-18

Digital.CSIC (Spain)

19

Compound that can inhibit UBC13-UEV interactions, paharmaceutical compositions and therapeutic uses

Sanclimens Pérez de Rozas, Gloria; Thomson, Timothy M.; Scheper Sigmund, Johanna; Messeguer Peypoch, Ángel; Ramírez Ortiz, Miguel Ángel; González Ruiz, Domingo; Morreale de León, Antonio; Masip Masip, Isabel; Moure Fernández, Alejandra
2009-02-04

Digital.CSIC (Spain)

20

Chiral half-sandwich ruthenium(II) complexes as catalysts in 1,3-dipolar cycloaddition reactions of nitrones with methacrolein

Carmona, Daniel; Lamata, M. Pilar; Viguri, Fernando; Ferrer, Joaquina; García, Néstor; Lahoz, Fernando J.; Martín, M. Luisa; Oro, Luis A.
2006-07-19

Digital.CSIC (Spain)

21

Ca impurity in small mixed He-4-He-3 clusters

Guardiola, Rafael; Navarro, Jesús; Mateo, D.; Barranco, M.
2009-11-04

Digital.CSIC (Spain)

22

Broadband dielectric investigation on poly(vinyl pyrrolidone) and its water mixtures

Cerveny, Silvina; Alegría Loinaz, Ángel; Colmenero de León, Juan

DRIVER (Spanish)

23

Broadband dielectric investigation on poly(vinyl pyrrolidone) and its water mixtures

Cerveny, Silvina; Alegría Loinaz, Ángel; Colmenero de León, Juan
2008-01-23

Digital.CSIC (Spain)