Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Margarita G. Ivanova"'
Publikováno v:
Colloids and Surfaces B: Biointerfaces. 42:9-20
The kinetics of formation of inclusion complexes between beta-cyclodextrin and monolayers of one-, two- and three-chained lipid molecules, namely, oleic acid (OA), monoolein (MO), diolein (DO) and triolein (TO), was investigated at various pH using t
Publikováno v:
Colloids and Surfaces B: Biointerfaces. 33:89-100
The hydrolysis of 1,2-diolein (DO) monomolecular films by Humicola lanuginosa lipase (HLL) was studied by simultaneous measuring the decrease in the film area and the changes in the surface potential in the “zero-order trough” at constant surface
Autor:
S. Yapoudjian, Allan Svendsen, W. Marine, A. Zénatti, Isabelle Douchet, Margarita G. Ivanova, M. Sentis, Robert Verger
Publikováno v:
Biopolymers. 65:121-128
The fluorescence resonance energy transfer (FRET) technique was adapted to study the process whereby lipase is adsorbed to monomolecular lipid films spread at the air-water interface. When cis-parinaric acid (cis-PnA) was spread over an aqueous subph
Autor:
Margarita G. Ivanova, Shamkant Anant Patkar, Allan Svendsen, A. Marek Brzozowski, S. Yapoudjian, Robert Verger, Jesper Vind
Publikováno v:
European Journal of Biochemistry. 269:1613-1621
The binding of Thermomyces lanuginosa lipase and its mutants [TLL(S146A), TLL(W89L), TLL(W117F, W221H, W260H)] to the mixed micelles of cis-parinaric acid/sodium taurodeoxycholate at pH 5.0 led to the quenching of the intrinsic tryptophan fluorescenc
Publikováno v:
Colloids and Surfaces B: Biointerfaces. 19:137-146
The kinetics of the hydrolysis of 1,2-rac-dicaprin monomolecular films were measured from the decrease in the film area and the simultaneous changes in the surface potential at a constant surface pressure. A new kinetic model, based on the rate of pr
Autor:
Margarita G. Ivanova, Véronique Lopez, Sofiane Bezzine, Frédéric Carrière, Francine Ferrato, Robert Verger
Publikováno v:
Biochemistry. 38:5499-5510
Five key amino acid residues from human pancreatic lipase (HPL) are mutated in some pancreatic lipase-related proteins 2 (PLRP2) that are not reactivated by colipase in the presence of bile salts. One of these residues (Y403) is involved in a direct
Publikováno v:
Colloids and Surfaces B: Biointerfaces. 10:1-12
The desorption rates of monolayers of insoluble lipolytic products, oleic acid (OA) and mono-olein (MO), spread at the air-water interface, were measured in the presence of β-cyclodextrin (β-CD) or α-cyclodextrin (α-CD) at various subphase pH val
Publikováno v:
Current Opinion in Colloid & Interface Science. 2:517-525
Water-soluble lipolytic enzymes act mainly at the water/lipid interface where their catalytic reactions are coupled with various interfacial phenomena such as penetration and activation of the enzyme, as well as desorption of the soluble products, so
Autor:
Ivan Petkov, K. Balashev, I. Panaiotov, F. Boury, Margarita G. Ivanova, S. Masuda, J. E. Proust
Publikováno v:
Journal of Dispersion Science and Technology. 18:661-681
The influence of pH on the properties of polyacryloylacetone (PAA) monolayers at air/water interface was examined by using surface pressure-area isotherm measurement,a new rheological approach and AFM imaging. The isotherms and AFM-imaging detect pha
Publikováno v:
Colloids and Surfaces B: Biointerfaces. 6:173-180
Surface pressure-molecular area curves of pure and mixed monolayers of lipolytic products (a mixture of oleic acid and 1,2-dioleoyl- sn -glycerol (OA-DO) at a 1:1 molar ratio), oleic acid (OA) and purified soybean oil (TG) spread at the argon-water i