Results 21 to 30 of about 512,271 (333)

Influence of surfactants on the electrohydrodynamic stretching of water drops in oil [PDF]

open access: yes, 2017
In this paper we present experimental and numerical studies of the electrohydrodynamic stretching of a sub-millimetre-sized salt water drop, immersed in oil with added non-ionic surfactant, and subjected to a suddenly applied electric field of magnitude ...
Ervik, Åsmund   +4 more
core   +2 more sources

Traces of surfactants can severely limit the drag reduction of superhydrophobic surfaces [PDF]

open access: yes, 2017
Superhydrophobic surfaces (SHSs) have the potential to achieve large drag reduction for internal and external flow applications. However, experiments have shown inconsistent results, with many studies reporting significantly reduced performance. Recently,
Goldstein, Raymond E.   +3 more
core   +2 more sources

Ion-Selective Electrode for Anionic Surfactants Using Hexadecyl Trimethyl Ammonium Bromide-Sodium Dodecylsulfate as an Active Ionophore

open access: yesInternational Journal of Electrochemistry, 2011
The construction and characteristic performance of PVC membrane electrode responsive to sodium dodecylsulfate (SDS) are described in this paper.
Junwei Wang   +3 more
doaj   +1 more source

Dairy waste water treatment by combining ozonation and nanofiltration [PDF]

open access: yes, 2007
The aim of this investigation was to examine the applicability of the membrane technique and the effect of preozonation in dairy waste water treatment technology.
Hodúr, Cecilia   +3 more
core   +1 more source

Micellar effect upon the rate of alkaline hydrolysis of carboxylic and carbonate esters

open access: yesJournal of Saudi Chemical Society, 2017
The alkaline hydrolysis of carboxylate (1-naphthylbutyrate) and carbonate esters (2-(methylsulfonyl)-ethyl-4-nitrophenylcarbonate) in the presence of different surfactants has been studied.
Mona N. Al-Shamary   +4 more
doaj   +1 more source

Synthesis of Precision Gold Nanoparticles Using Turkevich Method

open access: yesKONA Powder and Particle Journal, 2019
Gold nanoparticles (AuNPs) exhibit unique size-dependent physiochemical properties that make them attractive for a wide range of applications. However, the large-scale availability of precision AuNPs has been minimal.
Jiaqi Dong   +4 more
doaj   +1 more source

Thermodynamically consistent description of the hydrodynamics of free surfaces covered by insoluble surfactants of high concentration [PDF]

open access: yes, 2012
In this paper we propose several models that describe the dynamics of liquid films which are covered by a high concentration layer of insoluble surfactant.
Adamson A. W.   +8 more
core   +3 more sources

The Effect of Cosmetic Treatment and Gel Laser Therapy on the Improvement of Comedogenic Skin Type

open access: yesGels, 2023
Comedogenic skin care receives little attention compared to the care or treatment of more serious acne manifestations. Traditional therapies may have limited success with potential side effects.
Jana Pavlačková   +5 more
doaj   +1 more source

Biocompatible Catanionic Vesicles from Arginine-Based Surfactants: A New Strategy to Tune the Antimicrobial Activity and Cytotoxicity of Vesicular Systems

open access: yesPharmaceutics, 2020
Their stability and low cost make catanionic vesicles suitable for application as drug delivery systems. In this work we prepared catanionic vesicles using biocompatible surfactants: two cationic arginine-based surfactants (the monocatenary Nα-lauroyl ...
Aurora Pinazo   +5 more
doaj   +1 more source

Fluorescent visualization of a spreading surfactant

open access: yes, 2010
The spreading of surfactants on thin films is an industrially and medically important phenomenon, but the dynamics are highly nonlinear and visualization of the surfactant dynamics has been a long-standing experimental challenge.
Adele M Lichtenberger   +6 more
core   +1 more source

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