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Hydrophilic and hydrophobic interactions in cross-linked chitosan membranes
(Elsevier Science Sa, 2013-02)
Chitosan membranes with different cross-linking density were prepared by modifying cross-linking time. Sodium tripolyphosphate was the cross-linking agent. A pulsed nuclear magnetic resonance study was performed on ...
Biological activity of antibacterial peptides matches synergism between electrostatic and non electrostatic forces
(Elsevier Science, 2014-07)
Substitution of Ala 108 and Ala 111 in the 107–115 human lysozyme (hLz) fragment results in a 20- fold increased anti-staphylococcal activity while its hemolytic activity becomes significant (30%) at very high concentrations. ...
Influence of the nature of the support on the catalytic performance of CALB: Experimental and theoretical evidence
(Royal Society of Chemistry, 2018-07-21)
The immobilization of the lipase B of Candida antarctica (CALB) was carried out on various hydrophilic and hydrophobic supports through adsorption and covalent bond interactions. The catalytic performance of the biocatalysts ...
In Silico Study of the Interaction between Casein with Tocopherols: Preliminary Evaluation of Lipophilic Substrate Inclusion on Proteic Matrix
(Multidisciplinary Digital Publishing Institute, 2020-11)
Bovine casein is a family of milk proteins with hydrophilic and hydrophobic regions thatshow block distribution within the protein chain. These amphiphilic properties offer great potentialas a material for use as a matrix ...
Cyclodextrin modified niosomes to encapsulate hydrophilic compounds
(Royal Society of Chemistry, 2018-08)
Niosomes were prepared from equimolar mixtures of two non-ionic surfactants, Span 80 and Tween 80. The capability of the vesicular systems was studied through the encapsulation of two azo dyes as molecular probes of different ...
Role of confinement and surface affinity on filling mechanisms and sorption hysteresis of water in nanopores
(American Chemical Society, 2012-01)
The liquid-vapor transition in cylindrical pores is studied as a function of pore size and hydrophilicity through molecular dynamics simulations with the mW coarse-grained model of water. We identify two distinct filling ...
Hydrophilization of magnetic nanoparticles with an amphiphilic polymer revisited: Roles of nanoparticle capping density and polymer structure
(Elsevier Science, 2021-12)
Amphiphilic comb polymers, like poly(maleic anhydride-alt-1-octadecene) (PMAO), are frequently used to transfer hydrophobic magnetic nanoparticles (NPs) into aqueous media. While it is accepted that the hydrophilization ...
Ammonium 4-methoxybenzenesulfonate
(Wiley Blackwell Publishing, Inc, 2012-07)
The molecular structure of the title compound, NH4 +·C7H7O4S-, is featureless [the methoxy C atom deviating 0.173 (6) Å from the phenyl mean plane] with inter-atomic distances and angles in the expected ranges. The main ...
Chitosan films modified selectively on one side with dendritic molecules
(Royal Society Of Chemistry, 2012-11)
Novel chitosan films dendronized on one side were prepared by reaction between a cross-linked biopolymer and weisocyanate dendron. According to ATR-FTIR analysis, it can be concluded that the dendronization took place on ...
Interaction of acylated and unacylated forms of E. coli alpha-hemolysin with lipid monolayers: a PM-IRRAS study
(Elsevier Science, 2017-10)
Uropathogenic strains of Escherichia coli produce virulence factors, such as the protein toxin alpha-hemolysin (HlyA), that enable the bacteria to colonize the host and establish an infection. HlyA is synthetized as a ...