Results 231 to 240 of about 6,969,201 (284)

Enhancement in permeation and antifouling properties of PVC ultrafiltration membranes with addition of hydrophilic surfactant additives: Tween-20 and Tween-80

Journal of Environmental Chemical Engineering, 2016
The effects of Tween-20 and Tween-80 as hydrophilic and non-ionic surfactants on morphology, mechanical and separation efficiency of PVC ultrafiltration membranes was studied widely.
Hesamoddin Rabiee, Negar Alvandifar, Hossein Rabiei   +2 more
exaly   +2 more sources

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GENERAL AND CORONARY HAEMODYNAMIC EFFECTS OF TWEEN 20

Australian Journal of Experimental Biology and Medical Science, 1974
SummaryCardiac output, vascular pressures, coronary sinus flow, cardiac O2 usage and efficiency, together with blood glucose and non‐esterified fatty acid (NEFA) values, were measured before and after the infusion of Tween 20 (polyoxyethylene sorbitan monolaurate) in intact anaesthetised dogs.
R H, Burnell, G M, Maxwell
openaire   +2 more sources

Complex Micellization Behavior of the Polysorbates Tween 20 and Tween 80

Molecular Pharmaceutics, 2021
Polysorbates (PSs, Tweens) are widely used surfactant products consisting of a sorbitan ring connecting up to four ethylene oxide (EO) chains of variable lengths, one or more of which are esterified with fatty acids of variable lengths and saturation degrees.
Hannah Knoch, Maximilian H. Ulbrich, Judith J. Mittag, Julia Buske, Patrick Garidel, Heiko Heerklotz   +5 more
openaire   +3 more sources

Tween-20 increases the immunoreactivity of apolipoprotein A-I in plasma

Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1980
Tween-20 (polyoxyethylene 20), a trademark for a sorbitan polyoxyalkalene derivative is used as an emulsifier and detergent. In present studies, we report that Tween-20 is able to reduce the nonspecific binding of radiolabeled apolipoprotein A-I to test tubes.
K. Kluge, S.J. Squillace, Simon J.T. Mao, Bruce A. Kottke   +3 more
openaire   +2 more sources

The prevention of adsorption of interferents to radiolabelled protein by Tween 20

Journal of Biochemical and Biophysical Methods, 1991
Radiolabels are often used to quantitatively determine the amount of protein immobilized on chromatographic supports, immunochemical plates and biosensor surfaces. Bovine serum albumin (BSA) was chosen as a model protein for quantitative deposition studies.
E T, Vandenberg, U J, Krull
openaire   +2 more sources

Effects of Tween 20 on the desorption of proteins from polymer surfaces

Journal of Biomaterials Science, Polymer Edition, 1996
The effects of Tween 20 on the desorption of proteins from polyethylene and polyurethane were studied, using single protein solutions of the human proteins fibrinogen (Fb), immunoglobulin G (IgG), serum albumin (HSA), high density lipoproteins (HDL), and plasma.
Feng, M.H., Berdugo morales, A., Poot, Andreas A., Beugeling, T., Bantjes, A.   +4 more
openaire   +3 more sources

In Vitro Digestion of caseinate and Tween 20 Emulsions

Food Biophysics, 2018
In vitro digestion experiments are set-up with emulsions stabilized either with sodium caseinate and/or Tween 20, in the presence of mucin in the simulated GI fluids. The progress of charge alterations, focculation and coalescence are continuously monitored during the emulsions’ translation in the different stages of the model mouth–stomach–intestine ...
Eirini Koukoura, Martha Panagiotopoulou, Alexandros Pavlou, Vassilis Karageorgiou, Dimitrios G. Fatouros, Chrisi Vasiliadou, Christos Ritzoulis   +6 more
openaire   +1 more source

Selective solubilization with tween 20 of proteins from water-extracted human erythrocyte membranes analysis by gel electrophoresis in dodecylsulfate and in tween 20

Biochimica et Biophysica Acta (BBA) - Biomembranes, 1974
Abstract 1. 1. Human erythrocyte membranes (ghosts) were extracted at pH 9.5 (0°C) with an aqueous solution of low ionic strength (containing EDTA and 2-mercaptoethanol) and then with water. This procedure selectively solubilized 35% of the membrane protein. 2. 2.
L, Liljas, P, Lundahl, S, Hjertén
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Reduction of albumin adsorption onto silicon surfaces by Tween 20

Biotechnology and Bioengineering, 1997
The ability of Tween 20 to reduce the adsorption of albumin on silicon surfaces of different hydrophobicity was investigated by ellipsometry. As expected, protein adsorption was found to depend on the degree of hydrophobicity of the surfaces and on the concentration of the surfactant.
M, Zhang, M, Ferrari
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The use of Tween 20 in a sensitive turbidimetric assay of lipolytic enzymes

Canadian Journal of Microbiology, 1989
A turbidimetric esterase assay was developed using a Tween 20 solution in the presence of CaCl2 and Lysobacter enzymogenes esterase (EC 3.1.1.1) as the enzyme source. The reaction was followed by measuring the increase in the optical density at 500 nm (OD500) due to the hydrolytic release of the fatty acids from Tween 20 and their precipitation as the
R G, von Tigerstrom, S, Stelmaschuk
openaire   +2 more sources