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Showing 13 to 24 of 91 entries
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Interfacial Dynamics and Rheology of a Crude-Oil Droplet Oscillating in Water at a High Frequency.

Langmuir : the ACS journal of surfaces and colloids

Abi Chebel N, Piedfert A, Lalanne B, Dalmazzone C, Noïk C, Masbernat O, Risso F.
PMID: 31257882
Langmuir. 2019 Jul 23;35(29):9441-9455. doi: 10.1021/acs.langmuir.9b01594. Epub 2019 Jul 12.

We report investigations of a pendant diluted crude-oil droplet in water that is forced to oscillate at a frequency ω. The droplet interface contains a significant amount of surface-active agents and displays a marked viscoelastic rheology with elastic moduli...

Biodegradable Amphoteric Surfactants in Titration-Ultrasound Formulation of Oil-in-Water Nanoemulsions: Rational Design, Development, and Kinetic Stability.

International journal of molecular sciences

Waglewska E, Bazylińska U.
PMID: 34769205
Int J Mol Sci. 2021 Oct 29;22(21). doi: 10.3390/ijms222111776.

Amphoteric amphiphilic compounds, due to their unique properties, may represent a group of safe and biocompatible surface-active agents for effective colloidal stabilization of nanoformulations. For this reason, the aim of this work was to develop and characterize the oil-in-water...

Using functionalized asphaltenes as effective adsorbents for the removal of chromium and lead metal ions from aqueous solution.

Environmental research

Siddiqui MN, Pervez S, Karbhal I, Dugga P, Rajendran S, Pervez YF.
PMID: 34767817
Environ Res. 2022 Mar;204:112361. doi: 10.1016/j.envres.2021.112361. Epub 2021 Nov 09.

For the first time, functionalized asphaltene has been designed, synthesized, and used for the removal of heavy metals from the water. Asphaltene was separated from the crude oil with the addition of n-alkanes. Asphaltene having a complex chemical structure...

A multi-omics study to boost continuous bolaform sophorolipid production.

New biotechnology

Dierickx S, Maes K, Roelants SLKW, Pomian B, Van Meulebroek L, De Maeseneire SL, Vanhaecke L, Soetaert WK.
PMID: 34774786
N Biotechnol. 2022 Jan 25;66:107-115. doi: 10.1016/j.nbt.2021.11.002. Epub 2021 Nov 10.

Biodegradable and biobased surface active agents are renewable and environmentally friendly alternatives to petroleum derived or oleochemical surfactants. However, they are accompanied by relatively high production costs. In this study, the aim was to reduce the production costs for...

Thermodynamic Approach to the Wetting of Solids by Surface-Active Agents: A Supplementary Approach to the Gibbs Formalism.

Journal of colloid and interface science

Turmine M, Letellier P.
PMID: 10860596
J Colloid Interface Sci. 2000 Jul 01;227(1):71-77. doi: 10.1006/jcis.1999.6865.

The adsorption of a solute on a solid can be followed by contact angle measurements of a drop of the solution on the solid. The Gibbs isotherm model can be used for quantitative interpretation of wettability variations. Its use...

Interfacial and molecular interactions between fractions of heavy oil and surfactants in porous media: Comprehensive review.

Advances in colloid and interface science

Ahmadi M, Hou Q, Wang Y, Chen Z.
PMID: 32858410
Adv Colloid Interface Sci. 2020 Sep;283:102242. doi: 10.1016/j.cis.2020.102242. Epub 2020 Aug 18.

The oil production by the natural energy in oil reservoirs is decreasing gradually. Only 25-30% of the world's reservoirs can be produced naturally, and different methods are employed to recover the remaining oil. The use of surfactants is one...

Occurrence of Per- and Polyfluoroalkyl Substances (PFAS) in Source Water and Their Treatment in Drinking Water.

Critical reviews in environmental science and technology

Crone BC, Speth TF, Wahman DG, Smith SJ, Abulikemu G, Kleiner EJ, Pressman JG.
PMID: 32831535
Crit Rev Environ Sci Technol. 2019 Jun;49(24):2359-2396. doi: 10.1080/10643389.2019.1614848.

Per-and polyfluoroalkyl substances (PFAS) occurrence in drinking water and treatment methods for their removal are reviewed. PFAS are fluorinated substances whose unique properties make them effective surface-active agents with uses ranging from stain repellants to fire-fighting foams. In response...

Biofilms in chronic rhinosinusitis: Pathophysiology and therapeutic strategies.

World journal of otorhinolaryngology - head and neck surgery

Fastenberg JH, Hsueh WD, Mustafa A, Akbar NA, Abuzeid WM.
PMID: 29204570
World J Otorhinolaryngol Head Neck Surg. 2016 May 05;2(4):219-229. doi: 10.1016/j.wjorl.2016.03.002. eCollection 2016 Dec.

BACKGROUND: There is increasing evidence that biofilms are critical to the pathophysiology of chronic infections including chronic rhinosinusitis (CRS). Until relatively recently, our understanding of biofilms was limited. Recent advances in methods for biofilm identification and molecular biology have...

Occurrence of surface active agents in the environment.

Journal of analytical methods in chemistry

Olkowska E, Ruman M, Polkowska Z.
PMID: 24527257
J Anal Methods Chem. 2014;2014:769708. doi: 10.1155/2014/769708. Epub 2014 Jan 16.

Due to the specific structure of surfactants molecules they are applied in different areas of human activity (industry, household). After using and discharging from wastewater treatment plants as effluent stream, surface active agents (SAAs) are emitted to various elements...

Effects of nonionic surfactants on the solubilization and mineralization of phenanthrene in soil-water systems.

Biotechnology and bioengineering

Laha S, Luthy RG.
PMID: 18601093
Biotechnol Bioeng. 1992 Dec 20;40(11):1367-80. doi: 10.1002/bit.260401111.

The solubilization and mineralization of (14)C-phenanthrene in soil-water systems was examined with several commercially available surface-active agents, viz., an alkyl ethoxylate C(12)E(4); two alkylphenol ethoxylate surfactants: C(8)PE(9.5) and C(9)PE(10.5); two sorbitan ethoxylate surfactants: the sorbitan monolaurate (Tween 20) and...

A numerical study of the effect of insoluble surfactants on the stability of a viscous drop translating in a Hele-Shaw cell.

Journal of colloid and interface science

Gupta NR, Nadim A, Haj-Hariri H, Borhan A.
PMID: 16290784
J Colloid Interface Sci. 2002 Aug 01;252(1):236-48. doi: 10.1006/jcis.2002.8441.

A circular drop is a linearly stable solution for the buoyancy-driven motion of drops in a Hele-Shaw cell [Gupta et al. J. Colloid Interface Sci.218(1), 338 (1999)]. In the absence of surface-active agents, an initially prolate drop always goes...

Conductometric study of interaction between dyes and surface active agents.

Pakistan journal of pharmaceutical sciences

Waqar D, Alam M, Hussein W.
PMID: 16414765
Pak J Pharm Sci. 1995 Jan;8(1):39-44.

The interaction of anionic surface active agents e.g. sodium decyl sulphate (SDS), sodium dodecyl sulphate (SDDS), sodium tetradecyl sulphate (STDS), sodium hexadecyl sulphate (DHDS) and sodium octadecyl sulphate (DODS) with cationic dyes, methylene blue (MB), crystal violet (CV) acridine...

Showing 13 to 24 of 91 entries