Results 41 to 50 of about 23,291 (243)

Study of Micellar Behavior of Crown Ether and Tetraethylammonium Bromide in Aqueous Media

E-Journal of Chemistry, 2010
Conductivity measurements have been carried out to study the micellar behavior of tetraethylammonium bromide in presence of 15-crown-5 in aqueous media. The measurements were carried out at 298.15 K as a function of surfactant concentration with varying ...
R. D. Singh, Rajni Garg
doaj   +1 more source

Vitamin D drug formulation: from active substance to therapeutic effects

Лечащий Врач, 2022
The literature review presents current data on the origin and sources of industrial production of vitamin D, and describes the features of metabolism, biological and pharmacological properties of various vitamin D vitamers.
A. S. Dukhanin
doaj   +1 more source

Critical self-association of bile lipids studied by infrared spectroscopy and viscometry.

Journal of Lipid Research, 1990
Fourier transform infrared (FTIR)-attenuated total reflection (ATR) spectroscopy and viscometry were applied to study the micellization of two bile lipids, sodium taurochenodeoxycholate (NaTCDC) and sodium glycocholate (NaGC), in aqueous solutions.
L Antonian, S Deb, W Spivak
doaj   +1 more source

The surface adsorption, aggregate structure and antibacterial activity of Gemini quaternary ammonium surfactants with carboxylic counterions [PDF]

Royal Society Open Science, 2019
A group of Gemini quaternary ammonium surfactants with the formula CnH2n+1CONH(CH2)2N+(CH3)2(CH2)2N+(CH3)2(CH2)2 NHCOCnH2n+1 · 2Y (n = 11, 13 and 15, Y = HCOO−, CH3COO− and CH3CHOHCOO−) have been synthesized by a counterion conversion process and ...
Xiqin Zhou, Siqi Hu, Yu Wang, Sana Ullah, Jun Hu, Hongqin Liu, Baocai Xu   +6 more
doaj   +1 more source

Conductometric and Fluorescence Probe Analysis to Investigate the Interaction between Bioactive Peptide and Bile Salts: A Micellar State Study

Molecules, 2022
The present work deals with the micellar state study of sodium cholate and sodium deoxycholate in the aqueous solution of a bioactive peptide, namely glycyl dipeptide, having different concentrations through conductivity and fluorescence methods at ...
Santosh Kumari, Suvarcha Chauhan, Ahmad Umar, Hassan Fouad, Mohammad Shaheer Akhtar   +4 more
doaj   +1 more source

Kinetics of Surfactant Micellization: a Free Energy Approach

, 2010
We present a new theoretical approach to the kinetics of micelle formation in surfactant solutions, in which the various stages of aggregation are treated as constrained paths on a single free-energy landscape.
Andelman, David, Diamant, Haim, Hadgiivanova, Radina   +2 more
core   +1 more source

Effect of Temperature and Alcohol on the Determination of Critical Micelle Concentration of Non- Ionic Surfactants in Magnetic Water

مجلة بغداد للعلوم, 2020
The determination of critical micelle concentration of selected non-ionic surfactants (Tween 20,40 and 80) have been investigated using magnetic water(MW)as an aqueous medium.Conductometry technique is used to determine critical micelle concentration.The
Aamer A. Al-Hatem
doaj  

Study on the Effects of Biologically Active Amino Acids on the Micellization of Anionic Surfactant Sodium Dodecyl Sulfate (SDS) at Different Temperatures

Chemistry, 2022
The micellar properties of the anionic surfactant, sodium dodecyl sulfate (SDS) are modified by the biologically active amino acids. Amino acids (AAs) have experienced a variety of interactions and are proposed to influence SDS micelles due to their ...
Fatima M. Elarbi, Zaineb O. Ettarhouni, Wanisa Abdussalam-Mohammed, Aysha B. Mezoughi   +3 more
doaj   +1 more source

Thermodynamics of micellization of oppositely charged polymers

, 2003
The complexation of oppositely charged colloidal objects is considered in this paper as a thermodynamic micellization process where each kind of object needs the others to micellize.
Ben-Shaul A., Daoud M., Kunze K.-K., M Castelnovo, Thünemann A.   +4 more
core   +2 more sources

Colloidal stability of tannins: astringency, wine tasting and beyond [PDF]

, 2008
Tannin-tannin and tannin-protein interactions in water-ethanol solvent mixtures are studied in the context of red wine tasting. While tannin self-aggregation is relevant for visual aspect of wine tasting (limpidity and related colloidal phenomena ...
C Poulain, C Tribet, Cabane B Zanchi D Pascal C Vernhet A Poncet-Legrand C Konarev P Svergun D I, D I Svergun, D Zanchi, Haslam E, Hemingway R W, P Konarev, Pedersen J S, Shukla A Narayanan T Zanchi D, Zanchi D, Zanchi D Baron A Guyot S, Zanchi D Guyot S Konarev P Tribet C Baron A Svergun D I   +12 more
core   +1 more source