Results 171 to 180 of about 4,013 (188)
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Analytical Chemistry, 2018
Potential-controlled tensiometry is a voltage-induced method which enables measuring the contact angle between a powder bed and a liquid medium through the capillary rise method. This analytical tool provides a fine-grained technique for understanding wetting behavior of powders as well as solid surfaces in connection with the application of an ...
Sebastian P. Schwaminger +6 more
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Potential-controlled tensiometry is a voltage-induced method which enables measuring the contact angle between a powder bed and a liquid medium through the capillary rise method. This analytical tool provides a fine-grained technique for understanding wetting behavior of powders as well as solid surfaces in connection with the application of an ...
Sebastian P. Schwaminger +6 more
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Journal of Colloid and Interface Science, 2012
Pendant drop and buoyant bubble methods have been used to study the surface characteristics of alkyl amines at the water/air surface. The investigated alkyl amines, triethylamine and octylamine, showed unusual changes in the surface tension as a function of time: an initially steep drop and a subsequent steady increase in the surface tension until a ...
Winkelmann, Marion +3 more
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Pendant drop and buoyant bubble methods have been used to study the surface characteristics of alkyl amines at the water/air surface. The investigated alkyl amines, triethylamine and octylamine, showed unusual changes in the surface tension as a function of time: an initially steep drop and a subsequent steady increase in the surface tension until a ...
Winkelmann, Marion +3 more
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Langmuir, 2014
We report on the inclusion complex formation of β-cyclodextrin (βCD) with a cocogem surfactant (counterion-coupled gemini surfactant; (bis(4-(2-alkyl)benzenesulfonate)-Jeffamine salt, abbreviated as ABSJ), studied by isothermal titration calorimetry (ITC) and surface tension (SFT) measurements.
Mária, Benkő +3 more
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We report on the inclusion complex formation of β-cyclodextrin (βCD) with a cocogem surfactant (counterion-coupled gemini surfactant; (bis(4-(2-alkyl)benzenesulfonate)-Jeffamine salt, abbreviated as ABSJ), studied by isothermal titration calorimetry (ITC) and surface tension (SFT) measurements.
Mária, Benkő +3 more
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2017
The access to kinetic parameters of lipolytic enzyme adsorption onto lipids is essential for a better understanding of the overall catalytic process carried out by these interfacial enzymes. Gastric lipase, for instance, shows an apparent optimum activity on triglycerides (TAG) at acidic pH, which is controlled by its pH-dependent adsorption at lipid ...
Bénarouche, A. +6 more
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The access to kinetic parameters of lipolytic enzyme adsorption onto lipids is essential for a better understanding of the overall catalytic process carried out by these interfacial enzymes. Gastric lipase, for instance, shows an apparent optimum activity on triglycerides (TAG) at acidic pH, which is controlled by its pH-dependent adsorption at lipid ...
Bénarouche, A. +6 more
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Langmuir, 2008
The experimental dependences of viscoelasticity modulus and phase angle as a function of frequency for various C 14EO8 concentrations at the critical micelle concentration (cmc) of 7 micromol/L and far above the cmc (up to 70 x cmc) were studied using the buoyant bubble profile analysis method.
Fainerman, V., Petkov, J., Miller, R.
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The experimental dependences of viscoelasticity modulus and phase angle as a function of frequency for various C 14EO8 concentrations at the critical micelle concentration (cmc) of 7 micromol/L and far above the cmc (up to 70 x cmc) were studied using the buoyant bubble profile analysis method.
Fainerman, V., Petkov, J., Miller, R.
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Polymer, 1994
Abstract The wetting characteristics of an amorphous poly(ethylene terephthalate) (PET) film by water were studied by the Wilhelmy plate technique in the dynamic and static modes. At room temperature, a dynamic hysteresis of 40° ( θ A = 80°, θ R = 40°) was found. It was interpreted in terms of water adsorption-desorption phenomena. The air-water
C. Vergelati +4 more
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Abstract The wetting characteristics of an amorphous poly(ethylene terephthalate) (PET) film by water were studied by the Wilhelmy plate technique in the dynamic and static modes. At room temperature, a dynamic hysteresis of 40° ( θ A = 80°, θ R = 40°) was found. It was interpreted in terms of water adsorption-desorption phenomena. The air-water
C. Vergelati +4 more
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Thin Solid Films, 1992
The surface properties of air-exposed plasma-deposited hydrogenated amorphous silicon carbide films were studied by the tensiometric method. The low wettability has been attributed to CHn groups, giving a polymer-like character to the material, which increases with the carbon content of the layer.
B Cros +4 more
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The surface properties of air-exposed plasma-deposited hydrogenated amorphous silicon carbide films were studied by the tensiometric method. The low wettability has been attributed to CHn groups, giving a polymer-like character to the material, which increases with the carbon content of the layer.
B Cros +4 more
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Langmuir, 2004
Isothermal titration calorimetry (ITC), surface tensiometry, and ultrasonic velocimetry were used to characterize surfactant-maltodextrin interactions in buffer solutions (pH 7.0, 10 mM NaCl, 20 mM Trizma base, 30.0 degrees C). Experiments were carried out using three surfactants with similar nonpolar tail groups (C12) but different charged headgroups:
Wangsakan, Apiradee +2 more
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Isothermal titration calorimetry (ITC), surface tensiometry, and ultrasonic velocimetry were used to characterize surfactant-maltodextrin interactions in buffer solutions (pH 7.0, 10 mM NaCl, 20 mM Trizma base, 30.0 degrees C). Experiments were carried out using three surfactants with similar nonpolar tail groups (C12) but different charged headgroups:
Wangsakan, Apiradee +2 more
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Applications of Force Tensiometry for Characterizing Complex Materials Surfaces.
Proposed for presentation at the RGSAM held October 24-24, 2022 in Albuquerque, NM., 2022Rachel Callaway, James Fowler
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