Self-assembly of metal–ligand coordinated charged vesicles

Song, Aixin; Hao, Jingcheng

doi:10.1016/j.cocis.2008.09.004

Cited by 25 publications

(41 citation statements)

References 48 publications

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“…The vesicles have polydisperse size distribution with diameters ranging from about 50 nm to 200 nm. The vesicles formed in this system are rather small compared with those of other metal-ligand coordinated surfactant systems reported previously [14][15][16].…”

Section: Phase Behaviorsmentioning

confidence: 45%

“…Thus, it is significant to investigate phase behaviors, the factors affecting the formation of aggregates and the transition between different aggregates. A series of metal-ligand complexes have been reported and reviewed by our group [16]. However, the detailed phase behaviors and phase transition under environmental factors have not been investigated.…”

Section: Introductionmentioning

confidence: 98%

“…Different aggregates, especially vesicles, can be obtained through this way. In these systems, because metal ions are tightly fixed on surfactant headgroups, the aggregates formed can be used as templates for preparing nano-or micro-materials through different precipitate reactions [14,16]. Thus, it is significant to investigate phase behaviors, the factors affecting the formation of aggregates and the transition between different aggregates.…”

Section: Introductionmentioning

confidence: 99%

“…One is to mix alkyltrimethylammonium hydroxide (C n TAOH) or alkyldimethylamine oxide (C n DMAO) with acids having long hydrophobic tails [4][5][6][7][8][9][10][11][12]. The other is to construct metalligand coordinated systems by mixing multivalent metal surfactants with C n DMAO [13][14][15][16]. Different aggregates, especially vesicles, can be obtained through this way.…”

Section: Introductionmentioning

confidence: 99%

“…However, precipitates usually form near equimolar mixed ratios of cationic and anionic surfactants because of the screening of salts on the charged aggregates. In recent years, salt-free surfactant systems have come to the front because electrostatic interactions between the aggregates are not screened and very rich phase behaviors can be observed [4][5][6][7][8][9][10][11][12][13][14][15][16]. To obtain salt-free systems, two routes are often employed.…”

Section: Introductionmentioning

confidence: 99%

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Metal-ligand coordinated Ca(DS)2/C14DMAO/H2O system: Phase behavior and rheological property

Tian

Ding

et al. 2011

Sci. China Chem.

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A metal-ligand coordinated surfactant system formed by calcium dodecylsulfate (Ca(DS) 2 )/tetradecyldimethylamine oxide (C 14 DMAO)/H 2 O was studied in terms of surface tension, conductivity, negative-staining TEM, phase behavior and rheological operation. In C 14 DMAO solution, when Ca(DS) 2 is added, metal-ligand complexes form between the Ca 2+ and N→O group of C 14 DMAO. Under this metal-ligand driving force, different phases can be obtained at different concentrations and different ratios of Ca(DS) 2 and C 14 DMAO. At the fixed C 14 DMAO concentration, L 1 -phase consisting of spherical micelles forms at first. With the addition of Ca(DS) 2 , the spherical micelles elongate to be wormlike micelles and then after an L 1 /L  -two phase region, the birefringent vesicle-phase (L v -phase) region is observed. When Ca(DS) 2 concentration continues to increase, a gel-phase region is found after the L v -phase region and then precipitates of undissolved Ca(DS) 2 appear. The transition between different phases is affected by temperature remarkably. The wormlike micellar solutions and vesicle solutions were checked by rheological measurements and showed apparent viscoelasticity at high surfactant concentrations. metal-ligand, phase behavior, L v phase, wormlike micellar phase, rheological property

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Section: Phase Behaviorsmentioning

confidence: 45%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Metal-ligand coordinated Ca(DS)2/C14DMAO/H2O system: Phase behavior and rheological property

Tian

Ding

et al. 2011

Sci. China Chem.

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Self‐Assembly of Photoresponsive Molecular Amphiphiles in Aqueous Media

et al. 2021

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Amphiphilic molecules, comprising hydrophobic and hydrophilic moieties and the intrinsic propensity to self‐assemble in aqueous environment, sustain a fascinating spectrum of structures and functions ranging from biological membranes to ordinary soap. Facing the challenge to design responsive, adaptive, and out‐of‐equilibrium systems in water, the incorporation of photoresponsive motifs in amphiphilic molecular structures offers ample opportunity to design supramolecular systems that enables functional responses in water in a non‐invasive way using light. Here, we discuss the design of photoresponsive molecular amphiphiles, their self‐assembled structures in aqueous media and at air–water interfaces, and various approaches to arrive at adaptive and dynamic functions in isotropic and anisotropic systems, including motion at the air–water interface, foam formation, reversible nanoscale assembly, and artificial muscle function. Controlling the delicate interplay of structural design, self‐assembling conditions and external stimuli, these responsive amphiphiles open several avenues towards application such as soft adaptive materials, controlled delivery or soft actuators, bridging a gap between artificial and natural dynamic systems.

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