Monolayers of mixture of alkylaminomethyl rutin and lecithin at the air/water interface

He, Fang; Li, Ruixia; Wu, Dongfang

doi:10.1016/j.jcis.2010.04.080

Cited by 11 publications

(7 citation statements)

References 29 publications

(39 reference statements)

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“…Lift-off area for SLC in combination with 30 mol % cholesterol appeared at 1.07 nm 2 molecule –1 while that for the IPA was at 1.08 nm 2 molecule –1 . Results were found to be comparable with the previously published reports. , Monolayers with unsaturated lipid exhibit as a single homogeneous liquid expanded (fluid) phase. ,, Lift-off area of IPA (1.08 nm 2 molecule –1 ) was found to be significantly larger than the theoretically proposed value (∼0.20 nm 2 molecule –1 per single chain) …”

Section: Resultssupporting

confidence: 90%

“…Da-Cheng et al reported that C 8 -substituted alkylaminomethylrutin (DAMR) and SLC were miscible but exhibited intermolecular repulsive force over the entire range of DMAR mole fraction. Reports on the monomolecular film studies in combination with different amphiphiles are available in the literature.…”

Section: Resultsmentioning

confidence: 99%

“…In order to further scrutinize the interaction between SLC and IPA in their monolayer forms, apart from conventional monolayer thermodynamic parameters, regular solution theory was adopted. The interaction parameter (IP) describes the extent of interaction between SLC and IPA in mixed monolayer state and can be derived by using the following equation: w = normalΔ G ex 0 x 1 x 2 IP = w R T IP as a function of π is plotted in Figure and shows some fascinating points regarding the interaction process. Figure indicates that interaction was maximum for 10 mol % IPA and increasing linearly with π, whereas for 30 and 40 mol % IPA, IP is decreased with surface pressure.…”

Section: Resultsmentioning

confidence: 99%

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Ion-Pair Amphiphile: A Neoteric Substitute That Modulates the Physicochemical Properties of Biomimetic Membranes

et al. 2015

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Ion-pair amphiphiles (IPAs) are neoteric pseudo-double-tailed compounds with potential as a novel substitute of phospholipid. IPA, synthesized by stoichiometric/equimolar mixing of aqueous solution of hexadecyltrimethylammonium bromide (HTMAB) and sodium dodecyl sulfate (SDS), was used as a potential substituent of naturally occurring phospholipid, soylecithin (SLC). Vesicles were prepared using SLC and IPA in different ratios along with cholesterol. The impact of IPA on SLC was examined by way of surface pressure (π)-area (A) measurements. Associated thermodynamic parameters were evaluated; interfacial miscibility between the components was found to depend on SLC/IPA ratio. Solution behavior of the bilayers, in the form of vesicles, was investigated by monitoring the hydrodynamic diameter, zeta potential, and polydispersity index over a period of 100 days. Size and morphology of the vesicles were also investigated by electron microscopic studies. Systems comprising 20 and 40 mol % IPA exhibited anomalous behavior. Thermal behavior of the vesicles, as scrutinized by differential scanning calorimetry, was correlated with the hydrocarbon chain as well as the headgroup packing. Entrapment efficiency (EE) of the vesicles toward the cationic dye methylene blue (MB) was also evaluated. Vesicles were smart enough to entrap the dye, and the efficiency was found to vary with IPA concentration. EE was found to be well above 80% for some stable dispersions. Such formulations thus could be considered to have potential as novel drug delivery systems.

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Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Ion-Pair Amphiphile: A Neoteric Substitute That Modulates the Physicochemical Properties of Biomimetic Membranes

et al. 2015

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“…The synthesis, purification, and structural characterization of C 8 -substituted alkylaminomethyl rutin (RuCn, n = 8, 12 and 18) were carried out according to our previous work [16]. The electrolytes of NaCl, KCl, CaCl 2 , CuCl 2 and FeCl 3 prepared in ultrapure water were used as the subphase (all electrolytes are analytical grade, 0.5 mol/L).…”

Section: Methodsmentioning

confidence: 99%

The complexation mode of metal ions with Langmuir monolayers of nitrogen-containing flavonoid glycoside-based surfactants derived from rutin

et al. 2011

Colloids and Surfaces B: Biointerfaces

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“…The qc/qlog C value is called the adsorption effectiveness and determines the pumping of surfactant molecules to the interface and describes the adsorption tendency of surfactant molecules at the interface. The adsorption effectiveness (qc/qlog C) is an important factor determining vital properties concerning foaming, wetting, emulsification, solubilization, drug delivery and biological activities [14,15]. The Gibb's surface excess of the mixed surfactant systems is related to the surface pressure (p = c 0 -c) according to Eq.…”

Section: Critical Micelle Concentrations (Cmc)mentioning

confidence: 99%

Micellization and Interfacial Interaction Behaviors of Gemini Cationic Surfactants–CTAB Mixed Surfactant Systems

Mohamed

Negm

Mishrif

2013

J Surfact & Detergents

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The interfacial and micellization behaviors of binary mixtures of two gemini cationic surfactants and conventional the cetyl trimethyl ammonium bromide surfactant were studied at various molar ratios. From the equilibrium surface tension measurements, the critical micelle concentrations (CMC) data were obtained as functions of the composition. Values of the CMC were analyzed according to the regular solution model developed by Rubingh for mixed micelles. Two interaction parameters were obtained for each system, the interaction at the interface, and in the micellar phase. The results showed that micellization and adsorption properties of the studied mixed systems depend on the spacer chain lengths of the gemini surfactants and their ratio in the mixed systems.

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Monolayers of mixture of alkylaminomethyl rutin and lecithin at the air/water interface

Cited by 11 publications

References 29 publications

Ion-Pair Amphiphile: A Neoteric Substitute That Modulates the Physicochemical Properties of Biomimetic Membranes

Ion-Pair Amphiphile: A Neoteric Substitute That Modulates the Physicochemical Properties of Biomimetic Membranes

The complexation mode of metal ions with Langmuir monolayers of nitrogen-containing flavonoid glycoside-based surfactants derived from rutin

Micellization and Interfacial Interaction Behaviors of Gemini Cationic Surfactants–CTAB Mixed Surfactant Systems

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