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Inside front cover

Possibilities for ‘smart’ materials exploiting the self-assembly of polypeptides into fibrils

Vesicles and red blood cells in shear flow

Arresting amphiphilic self-assembly

Janus particles

Nanomechanics of polymer gels and biological tissues: A critical review of analytical approaches in the Hertzian regime and beyond

Inclusions in free standing smectic liquid crystal films

Inkjet printing as a deposition and patterning tool for polymers and inorganic particles

Responsive brush layers: from tailored gradients to reversibly assembled nanoparticles

On-chip electric field driven assembly of biocomposites from live cells and functionalized particles

Pseudo-knots in helical structures

First example of biopolymer–polyoxometalate complex coacervation in gelatin–decavanadate mixtures

Alignment and anchoring transition of liquid crystals on the surface of self-assembled block copolymer films with periodic defects

Poly(l-lysine)-graft-dextran copolymer accelerates DNA hybridization by two orders

Discontinuous swelling behaviors of lipophilic polyelectrolyte gels in non-polar media

Controlled nanoparticle assembly through protein conformational changes

Isotropic-to-nematic nucleation in suspensions of colloidal rods

Photochromic superabsorbent polymers

Langmuir–Schaefer films of a set of achiral amphiphilic porphyrins: aggregation and supramolecular chirality

A rheo-optical study of shear rate and optical anisotropy in wormlike micelles solutions

Supramolecular assemblies of surfactants and lipid derivatives on free-standing hybrid nanofilms

Reversible phase transition from vesicles to lamellar network structures triggered by chain melting

Divalent cations stabilize the aggregation of sulfated glycoproteins in the adhesive nanofibers of the biofouling diatom Toxarium undulatum

Enzyme-responsive hydrogel particles for the controlled release of proteins: designing peptide actuators to match payload

Spreading of bio-adhesive vesicles on DNA carpets

Virus assay using antibody-functionalized peptide nanotubes

Binary mixtures of β-dodecylmaltoside (β-C₁₂G₂) with cationic and non-ionic surfactants: micelle and surface compositions

Construction of thermoresponsive SCKs through tuning the crystalline melting point of the core domain

Classical simulations from the atomistic to the mesoscale and back: coarse graining an azobenzene liquid crystal

Flow of wormlike micelles in an expansion-contraction geometry

An injectable enzymatically crosslinked hyaluronic acid–tyramine hydrogel system with independent tuning of mechanical strength and gelation rate

Diffusion processes in homogeneous and phase-separated binary fluid mixtures

The influence of electrostatic interaction on the structure and the shear modulus of heat-set globular protein gels

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Reversible phase transition from vesicles to lamellar network structures triggered by chain melting

Content Provider	Royal Society of Chemistry (RSC)
Author	Wu, Zhonghua Hoffmann, Heinz Shen, Yuwen Hao, Jingcheng
Copyright Year	2008
Abstract	Reversible phase structural transition from densely packed multilamellar vesicles of cationic and anionic (catanionic) tetradecyltrimethylammonium laurate (TTAL) with an amount of salt (NaBr) to network structures was triggered by chain melting. Phase behavior of catanionic TTAL multilamellar vesicles in aqueous solutions at different concentrations of NaBr with increasing temperature was studied. This phase structural transition is a progressive process and happens at the chain melting, which was monitored by means of Fourier transform infrared (FT-IR) spectroscopy, turbidity and viscosity measurements. Transmission electron microscopy (TEM) and small angle X-ray scattering (SAXS) were used to demonstrate the phase structural conversion from vesicles to three-dimensional structures consisting of extended bilayer networks. We found that the phase transition temperature (Tm) was influenced by adding amount of salt but not by being diluted. This is the first time that the phase conversion from catanionic surfactant vesicles to bilayer networks triggered by chain melting has been observed. The phase structural transition should arise from the enhanced membrane elasticity accompanying the catanionic surfactant state fluctuations on chain melting and the solvent-associated interactions including cationic and anionic surfactant electrostatic interaction, which favors a change in membrane curvature. We hope this phase conversion observed in catanionic surfactants in aqueous solution will provide good insight into the nature of the fusion or fission processes and the fluctuation of catanionic vesicular systems.
Starting Page	805
Ending Page	810
Page Count	6
File Format	HTM / HTML PDF
ISSN	1744683X
Volume Number	4
Issue Number	4
Journal	Soft Matter
DOI	10.1039/b717097a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Viscosity Infrared spectroscopy Spectroscopy Lauric acid Fourier transform Fourier-transform infrared spectroscopy Surfactant Small-angle X-ray scattering Transmission electron microscopy Fourier Turbidity Curvature Nuclear fission Phase transition
Content Type	Text
Resource Type	Article
Subject	Chemistry Condensed Matter Physics

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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