Results 11 to 20 of about 29,068 (249)

Critical micelle concentrations of lipoteichoic acids [PDF]

open access: yesJournal of Bacteriology, 1986
Purified lipoteichoic acids (LTAs) from several gram-positive organisms have been shown, by methods involving spectral changes of an added merocyanine dye probe, to have critical micelle concentrations in the range of 1 to 10 micrograms/ml, suggesting that acylated LTAs in their monomer forms may represent the major configuration of extracellular LTAs ...
A J, Wicken, J D, Evans, K W, Knox
openaire   +2 more sources

Accurate and sensitive probing of onset of micellization based on absolute aggregation‐caused quenching effect

open access: yesAggregate, 2022
Probing the onset of micellization, or determining the critical micelle concentration (CMC), is of crucial importance while remains to be challenged by growing demand for extraordinary sensitivity and accuracy.
Haisheng He   +8 more
doaj   +1 more source

Determination of critical micelle concentration of cetyltrimethylammonium bromide in presence and absence of KCl and NaCl in aqueous media at room temperature by viscosity measurement

open access: yesBibechana, 2014
NOTE: The correct reference list was added to this article on 08/07/2014. Viscosity measurement of cetyltrimethylammonium bromide in presence and in absence of KCl and NaCl in aqueous media is done. The results showed a sharp increase in viscosity with
Kabita Jha   +2 more
doaj   +3 more sources

Colloid-chemical properties of surfactant–nitric acid–water systems

open access: yesChimica Techno Acta, 2023
The behavior of the surfactants Tween 80, SaS and alkyl betaine in aqueous and nitric acid environments as promising additives for nitrate leaching of hard-to-process ore concentrates of non-ferrous metals was studied.
Lev Danilin   +3 more
doaj   +1 more source

A Surfactant Concentration Model for the Systematic Determination of the Critical Micellar Concentration and the Transition Width

open access: yesMolecules, 2021
The critical micellar concentration (cmc) is a fundamental property of surfactant solutions. Many proposed methods for the definition and determination of the cmc from property-concentration plots yield values, which depend on the studied property, on ...
Wajih Al-Soufi, Mercedes Novo
doaj   +1 more source

Preparation and evaluation of PCL-PEG-PCL micelles as potential nanocarriers for ocular delivery of dexamethasone [PDF]

open access: yesIranian Journal of Basic Medical Sciences, 2018
Objective(s): Micelles have been studied as nanoparticulate drug delivery systems for improving the topical ocular delivery of hydrophobic drugs.
Mitra Alami-milani   +4 more
doaj   +1 more source

Critical Micelle Concentrations in Surfactant Mixtures and Blends by Simulation [PDF]

open access: yesThe Journal of Physical Chemistry B, 2021
We explore the use of coarse-grained dissipative particle dynamics simulations to predict critical micelle concentrations (CMCs) in polydisperse surfactant mixtures and blends. By fitting pseudo-phase separation models (PSMs) to aqueous solutions of binary surfactant mixtures at selected compositions above the CMC, we avoid the need for expensive ...
Annalaura Del Regno   +3 more
openaire   +2 more sources

SOME PHYSICOCHEMICAL PROPERTIES OF OCTYLPHENOL ETHOXYLATE NONIONICS (TRITON X-100, TRITON X-114 AND TRITON X-405) AND THE TEMPERATURE EFFECT ON THIS PROPERTIES

open access: yesTrakya University Journal of Natural Sciences, 2016
Surface tensions and condutvities of aqueous solutions of nonionic surfactants at various concentrations were measured at diffferent temperatures.The critical micelle concentration (CMC) of aqueous solutions of three different octylphenol ethoxylate ...
Taliha Sidim
doaj   +6 more sources

β-Cyclodextrin-promazine hydrochloride interaction: Conductometric and viscometric studies

open access: yesJournal of Saudi Chemical Society, 2015
Herein we have studied the interaction of β-cyclodextrin (β-CD) with the amphiphilic drug promazine hydrochloride (PMZ) by using conductimetry and viscometry.
Mohd. Sajid Ali   +4 more
doaj   +1 more source

Efecto del catión, del anión y del co-ión sobre la agregación de líquidos iónicos en solución acuosa Cation, anion and co-ion effect on the aggregation of ionic liquids in aqueous solution

open access: yesQuímica Nova, 2010
The aggregation behavior of thirteen 1-alkyl-3-methylimidazolium based ionic liquids in aqueous solution is presented, considering variations of the alkyl side chain length as well as the anionic moiety. Cation and anion molecular volumes are selected as
Nólides Marina Guzmán   +6 more
doaj   +1 more source

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