Environmental stimuli induced phase transition in the aqueous mixture solution of Gemini surfactants and sodium deoxycholate

Li, Qintang; Yue, Xiu; Shang, Pengming; Quan, Yaru; Ren, Maozhi; Ma, Yinge; Xiao, Changfa

doi:10.1016/j.colsurfa.2015.10.030

Cited by 19 publications

(16 citation statements)

References 45 publications

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“…After precipitation of the (DS+12‐6‐12) catanionic complex at R′ =3.5 and 5.0, the D h values were 396.1 and 255.0 nm, respectively. Thus, the average size of the aggregates progressively increased with increasing R′ , in agreement with the above discussion on aggregate size growth, and vesicle formation occurred ,. Mahajan et al.…”

Section: Resultssupporting

confidence: 86%

“…Thus, it is safe to conclude that the electrostatic interaction in the investigated system is that between the drug anion (DS − ) and the cationic surfactant monomer/micelle. This electrostatic attraction, coupled with the hydrophobic interactions between the aromatic rings of the drug and the surfactant result in accumulation of DS in the Stern layer of the micelle, which leads to a gradual decrease of micellar surface potential and tighter packing of the monomers . For example, we showed that incorporation of DS in micellar CTABr increased the packing parameter of the monomer in the aggregate, due to the concomitant decrease in the average area occupied by the surfactant head group.…”

Section: Resultsmentioning

confidence: 79%

“…This electrostatic attraction, coupled with the hydrophobic interactions between the aromatic rings of the drug and the surfactant result in accumulation of DS in the Stern layer of the micelle, which leads to ag raduald ecreaseo f micellar surface potential and tighter packing of the monomers. [27,[46][47][48][53][54][55] For example, we showedt hat incorporation of DS in micellar CTABr increasedt he packing parameter of the monomer in the aggregate, due to the concomitantd ecrease in the average area occupied by the surfactant head group. This increase in monomer packinga ccompanies the gradual change in micellar geometry from spherical to wormlike micelles and finally vesicles.…”

Section: Rationale For the Effect Of Ds On Micellar Aggregatesof 12-6-12mentioning

confidence: 89%

“…The self‐assembly behavior of mixed systems consisting of sodium fatty alcohol ether sulfate and the conventional cationic surfactant cetyltrimethylammonium bromide (CTABr) was preliminarily investigated, and the aggregate structures were characterized by TEM, dynamic light scattering (DLS), and small‐angle XRD . Subsequently, various groups studied the microstructures of micellar aggregates formed by the combination of cationic surfactants and anionic hydrotropes; the interactions of both species control the aggregates geometry, morphology, and size of the aggregates . Hoque et al.…”

Section: Introductionmentioning

confidence: 99%

“…[24] Subsequently,v ariousg roups studied the microstructures of micellar aggregates formed by the combination of cationic surfactants and anionic hydrotropes; the interactions of both species control the aggregates geometry,m orphology,a nd size of the aggregates. [25][26][27] Hoque et al reported that cephalosporin antibiotics induce geometry transition (spherical!rodlike) in micelles of single-chain cationic surfactants. [28] Earlier,w eshowedt hat diclofenac sodium (DS) induces micelle-to-vesicle transition in micelles of CTABr and two ionic-liquid-based surfactants.…”

Section: Introductionmentioning

confidence: 99%

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Drug‐Induced Micelle‐to‐Vesicle Transition of a Cationic Gemini Surfactant: Potential Applications in Drug Delivery

et al. 2018

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An impetus for the sustained interest in the formation of vesicles is their potential application as efficient drug-delivery systems. A simple approach for ionic surfactants is to add a vesicle-inducing drug of opposite charge. In ionic gemini surfactants (GSs) two molecules are covalently linked by a spacer. Regarding drug delivery, GSs are more attractive candidates than their single-chain counterparts because of their high surface activity and the effect on the physicochemical properties of their solutions caused by changing the length of the spacer and inclusion of heteroatoms therein. Herein, the effect of the (anionic) anti-inflammatory drug diclofenac sodium (DS) on the morphology of aqueous micellar aggregates of gemini surfactant hexamethylene-1,6-bis (dodecyldimethylammonium) dibromide (12-6-12) at 25 °C is reported. Several independent techniques are used to demonstrate drug-induced micelle-to-vesicle transition. These include UV/Vis spectrophotometry, dynamic light scattering, TEM, and small-angle neutron scattering. The micelles are transformed into vesicles with increasing [DS]/[12-6-12] molar ratio; precipitation of the catanionic (DS-GS) complex then occurred, followed by partial resuspension of the weakly anionic precipitate. The stability of some of the prepared vesicles at human body temperature shows their potential use in drug delivery.

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Section: Resultssupporting

confidence: 86%

Section: Resultsmentioning

confidence: 79%

Section: Rationale For the Effect Of Ds On Micellar Aggregatesof 12-6-12mentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Drug‐Induced Micelle‐to‐Vesicle Transition of a Cationic Gemini Surfactant: Potential Applications in Drug Delivery

et al. 2018

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Self‐assembly properties of ultra‐long‐chain gemini surfactant with high performance in a fracturing fluid application

Yang

Zhang

et al. 2016

J of Applied Polymer Sci

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A new cationic gemini surfactant (C25‐6‐C25), which had a special structure consisting of ultra‐long hydrophobic chains and amide groups, was synthesized using a main feedstock source obtained from rapeseed for thickening purposes. The 12 mmol L−1 C25‐6‐C25 fluid containing 0.19 mol L−1 potassium chloride (KCl) exhibited highly elastic properties at the angular frequency of 0.04–10 rad s−1. Its viscosity could be maintained at 55 mPa s for 1.5 h under a shear rate of 170 s−1 at 110 °C and it also showed a good proppant‐suspending property. C25‐6‐C25/KCl fluid exhibited high viscoelasticity and good performance, which were attributed to intermolecular forces, hydrogen bonding, and the shielding effect of electrostatic repulsion by KCl. Thus, C25‐6‐C25 is a very promising candidate for fracturing. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44602.

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A Thermally Stable Polyamine/Unsaturated Fatty Acid System: Gelation Behaviors and Application

Zhang

et al. 2019

J Surfact & Detergents

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The gelation behavior of diethylenetriamine (DETA) and oleic acid (OLA) with different molar ratios in water was investigated. The gels, which were composed of lamellar phase and vesicles, were characterized using small‐angle X‐ray scattering (SAXS) and freeze‐fracture transmission electron microscopy (FF‐TEM). The responsive rheological properties were also investigated. Our results show that lamellar gels and rodlike micelles were formed successively with the increase of the DETA/OLA molar ratio. The lamellar gels exhibiting high thermal stability can be obtained in a wide range of polyamine/unsaturated fatty acid molar ratios. The mechanism of lamellar gel formation was explained by the packing parameter and the noncovalent interactions between the building blocks. Moreover, gel–sol transition can be triggered by tuning pH and ionic strength. This system has a good emulsification property, and no obvious nanoemulsion droplet coarsening is observed upon dilution after 30 days.

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Environmental stimuli induced phase transition in the aqueous mixture solution of Gemini surfactants and sodium deoxycholate

Cited by 19 publications

References 45 publications

Drug‐Induced Micelle‐to‐Vesicle Transition of a Cationic Gemini Surfactant: Potential Applications in Drug Delivery

Drug‐Induced Micelle‐to‐Vesicle Transition of a Cationic Gemini Surfactant: Potential Applications in Drug Delivery

Self‐assembly properties of ultra‐long‐chain gemini surfactant with high performance in a fracturing fluid application

A Thermally Stable Polyamine/Unsaturated Fatty Acid System: Gelation Behaviors and Application

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