Thermodynamic parameters and counterion binding to the micelle in binary anionic surfactant systems

Maneedaeng, Atthaphon; Haller, Kenneth J.; Grady, Brian P.; Flood, Adrian E.

doi:10.1016/j.jcis.2011.01.008

Cited by 26 publications

(21 citation statements)

References 47 publications

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“…These observations are consistent with a fraction of HMet + cations replacing the Na + cations, as modeled in a recent study of competitive counterion binding to micelles and mixed micelles. [45] This study found essentially constant counterion binding to the micellar surface by using a simple equilibrium model. [45] 51 V NMR spectroscopic studies were also carried out with HMetV 10 in AOT RMs to investigate the system using the anion as probe; no data is available in water because of the HMetV 10 insolubility in water.…”

Section: Synthesis and Characterizationmentioning

confidence: 75%

“…[45] This study found essentially constant counterion binding to the micellar surface by using a simple equilibrium model. [45] 51 V NMR spectroscopic studies were also carried out with HMetV 10 in AOT RMs to investigate the system using the anion as probe; no data is available in water because of the HMetV 10 insolubility in water. 51 V NMR spectroscopic signals of V 10 in NaV 10 Table 1.…”

Section: Synthesis and Characterizationmentioning

confidence: 75%

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Counterion Affects Interaction with Interfaces: The Antidiabetic Drugs Metformin and Decavanadate

et al. 2013

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Keywords: Drug delivery / Vanadium / Hydrogen bonds / Micelles / MetforminA material that contains metformium cation and decavanadate anion was synthesized and characterized. The material is not soluble in water but slightly soluble in dimethyl sulfoxide and very soluble in the inhomogeneous environment of sodium bis(2-ethylhexyl)sulfosuccinate (AOT) reverse micelles, which deviates significantly from the properties of sodium decavanadate. By considering the fact that decavanadate is reported to have insulin-enhancing activity in streptozotocin (STZ)-induced diabetic rats (Pereira et al., J. Inorg. Biochem. 2009, 103, 1687-1692, how this oxometalate interacts with interfaces was investigated using NMR and IR spectroscopy.

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Section: Synthesis and Characterizationmentioning

confidence: 75%

Section: Synthesis and Characterizationmentioning

confidence: 75%

Counterion Affects Interaction with Interfaces: The Antidiabetic Drugs Metformin and Decavanadate

et al. 2013

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“…It was found that the surface fraction bound by calcium for 10 mM SDS was roughly 0.65 when the calcium concentration was 0.3 mM. 24 It has also been shown from conductivity measurements that the surface charge density of magnesium dodecylsulfate micelles is roughly 4/3 that of calcium dodecylsulfate micelles. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 15 are assuming in our model that magnesium binds to a single site first before attaching to a second adjacent site, though this is only a simplification.…”

Section: Na 2 Somentioning

confidence: 98%

Nanomechanical Characterization of Micellar Surfactant Films via Atomic Force Microscopy at a Graphite Surface

Micklavzina

Zhang

et al. 2017

Langmuir

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In this work, we study the mechanical properties of sodium dodecylsulfate (SDS) and dodecylamine hydrochloride (DAH) micellar films at a graphite surface via atomic force microscopy (AFM). Breakthrough forces for these films were measured using silicon nitride cantilevers, and found to be 1.1 ±0.1 nN for a 10 mM DAH film and 3.0 ±0.3 nN for a 10 mM SDS film. For 10 mM SDS films, it was found that the addition of 1.5 mM of NaCl, Na 2 SO 4 , or MgCl 2 produced a 50-70% increase in measured breakthrough force. Similar results were found for 10 mM DAH films when NaCl and MgCl 2 were added. A model was developed, based upon previous work on lipid films and CMC data gathered via spectrofluorometry measurements, to produced the observed differences. The pH of the bulk solution was varied for both 10 mM SDS and DAH films, and was found to have little effect on breakthrough force.

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“…While in nonionic surfactants solution, the addition of inorganic salt does not have drastic effects on the formation of micelle as compared to the ionic surfactants [1,2]. For the mixed surfactant systems, the addition of inorganic salt may result in different micellar behavior [13][14][15]. At present, many investigations have reported the effect of inorganic salt on the micellar behaviors for the mixtures of ionic-nonionic surfactants [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Effect of sodium chloride on interaction between amino sulfonate amphoteric surfactant and octylphenol polyoxyethylene ether (10) in aqueous solution

Ren

2015

Journal of Industrial and Engineering Chemistry

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Thermodynamic parameters and counterion binding to the micelle in binary anionic surfactant systems

Cited by 26 publications

References 47 publications

Counterion Affects Interaction with Interfaces: The Antidiabetic Drugs Metformin and Decavanadate

Counterion Affects Interaction with Interfaces: The Antidiabetic Drugs Metformin and Decavanadate

Nanomechanical Characterization of Micellar Surfactant Films via Atomic Force Microscopy at a Graphite Surface

Effect of sodium chloride on interaction between amino sulfonate amphoteric surfactant and octylphenol polyoxyethylene ether (10) in aqueous solution

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