54 research outputs found
Crystal structure of the 1:1 complex of heptakis (2,3,6-tri-O-methyl)cyclomalto-heptaose(permethylated beta-cyclodextrin)with ethyl laurate;
Get PDFCrystal structure of the 1:1 complex of heptakis (2,3,6-tri-O-methyl)cyclomalto-heptaose(permethylated beta-cyclodextrin)with ethyl laurate;
Get PDFImpact of supramolecular interactions of dextran-β-cyclodextrin polymers on invertase activity in freeze-dried systems
Get PDFβ-cyclodextrin-grafted dextrans with spacer arms of different length were employed to evaluate the impact of supramolecular interactions on invertase activity. The modified dextrans were used as single additives or combined with trehalose in freeze-dried formulations containing invertase. Enzyme activity conservation was analyzed after freeze-drying and thermal treatment. The change of glass transition temperatures (Tg) was also evaluated and related to effective interactions. Outstanding differences on enzyme stability were mainly related to the effect of the spacer arm length on polymer-enzyme interactions, since both the degree of substitution and the molecular weight were similar for the two polymers. This change of effective interactions was also manifested in the pronounced reduction of Tg values, and were related to the chemical modification of the backbone during oxidation, and to the attachment of the β-cyclodextrin units with spacer arms of different length on dextran.Fil: Santagapita, Patricio Roman. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de QuĂmica OrgĂĄnica; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂŠcnicas; ArgentinaFil: Mazzobre, Maria Florencia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de QuĂmica OrgĂĄnica; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂŠcnicas; ArgentinaFil: Buera, Maria del Pilar. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de QuĂmica OrgĂĄnica; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂŠcnicas; ArgentinaFil: RamĂrez, HĂŠctor L.. Universidad de Matanzas Camilo Cienfuegos.; CubaFil: GĂłmez Brizuela, Leissy. Universidad de Matanzas Camilo Cienfuegos.; CubaFil: Corti, Horacio Roberto. ComisiĂłn Nacional de EnergĂa AtĂłmica. Gerencia de Ărea Investigaciones y Aplicaciones No Nucleares. Gerencia FĂsica (CAC). Departamento de FĂsica de la Materia Condensada; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂŠcnicas. Oficina de CoordinaciĂłn Administrativa Ciudad Universitaria. Instituto de QuĂmica, FĂsica de los Materiales, Medioambiente y EnergĂa. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de QuĂmica, FĂsica de los Materiales, Medioambiente y EnergĂa; ArgentinaFil: Villalonga Santana, Reynaldo. Universidad Complutense de Madrid; EspaĂą
ChemInform Abstract: Structures of Two Conducting Salts of Pyrazinoethylenedithiotetrathiafulvalene (PEDTTTF): (PEDTTTF)2PF6 and (PEDTTTF)2BF4¡(CH2Cl2)0.5
No full textCrystal structure of the inclusion complex of cholesterol in β-cyclodextrin and molecular dynamics studies
No full textCrystal structure of the 1:1 complex of heptakis (2,3,6-tri-O-methyl)cyclomalto-heptaose(permethylated beta-cyclodextrin)with ethyl laurate;
Get PDFInclusion compounds of plant growth regulators in cyclodextrins, part VII: study of the crystal structures of 2-naphthylacetic acid encapsulated in β-cyclodextrin and heptakis(2,3,6-tri-O-methyl)-β-cyclodextrin complexes by X-ray crystallography
No full textInclusion Compounds of Plant Growth Regulators in Cyclodextrins. Part VI. Study of the Inclusion Compound of MCPA in beta-Cyclodextrin by X-Ray Crystallography
No full textControlling Cuâ˘â˘â˘Cu distances using halides: (8-phenylthionaphth-1-yl)diphenylphosphine copper halide dimers
Get PDFIn the isomorphous binuclear Cu2X2L2 systems (L = (8-phenylthionaphth-1-yl)diphenylphosphine the Cu center dot center dot center dot Cu separation is reduced as the halide size increases.PostprintPeer reviewe
Inclusion compounds of plant growth regulators in cyclodextrins, part VII: study of the crystal structures of 2-naphthylacetic acid encapsulated in β-cyclodextrin and heptakis(2,3,6-tri-O-methyl)-β-cyclodextrin complexes by X-ray crystallography
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