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Mesoscale modeling of block copolymer nanocomposites

T_g depression and invariant segmental dynamics in polystyrene thin films

A spatially and temporally controlled shape memory process for electrically conductive polymer–carbon nanotube composites

Charge complementary enzymatic reconfigurable polymeric nanostructures

The effects of acid hydrolysis on protein biosurfactant molecular, interfacial, and foam properties: pH responsive protein hydrolysates

Effect of solvent quality on the polymer adsorption from bulk solution onto planar surfaces

Coarse-graining strategies in polymer solutions

A computer simulation study of the anchoring transitions driven by rod–coil amphiphiles at aqueous–liquid crystal interfaces

Using self-driven microswimmers for particle separation

Decay of interfacial fluid ordering probed by X-ray reflectivity

Size invariance of fibrous networks of supramolecular soft materials during formation under critical volume confinement

Molecular dynamics and morphology of confined 4-heptyl-4′-isothiocyanatobiphenyl liquid crystals

Effect of covalent cross-links on the network structure of thermo-reversible ionic elastomers

Analytical expressions for the disjoining pressure between particle-stabilized fluid–fluid interfaces and composite materials

Photoinitator surface segregation induced instabilities from polymerization of a liquid coating on a rigid substrate

Can Janus particles give thermodynamically stable Pickering emulsions?

Switching kinetics of thin thermo-responsive hydrogel films of poly(monomethoxy-diethyleneglycol-acrylate) probed with in situ neutron reflectivity

Internal microstructures in shearing giant electrorheological fluids

Oscillatory normal forces of magnetorheological fluids

Stable, ordered multilayers of partially fluorinated bolaamphiphiles at the air–water interface

Disorder-to-order transitions induced by alkyne/azide click chemistry in diblock copolymer thin films

Atomistic molecular dynamics study of cross-linked phenolic resins

Free-floating hydrogel-based rafts supporting a microarray of functional entities at fluid interfaces

Sonication induced peptide-appended bolaamphiphile hydrogels for in situ generation and catalytic activity of Pt nanoparticles

Facile preparation of coating fluorescent hollow mesoporous silica nanoparticles with pH-sensitive amphiphilic diblock copolymer for controlled drug release and cell imaging

Time resolved membrane fluctuation spectroscopy

Enhanced rheological properties of dilute suspensions of magnetic nanoparticles in a concentrated amphiphilic surfactant solution

Controlling length and areal density of artificial cilia through the dipolar assembly of ferromagnetic nanoparticles

Directional fluid transport along artificial ciliary surfaces with base-layer actuation of counter-rotating orbital beating patterns

Adhesion of soft viscoelastic adhesives on periodic rough surfaces

Alignment of perpendicular lamellae in block copolymer thin films by shearing

Multilayer vesicles, tubes, various porous structures and organo gels through the solvent-assisted self-assembly of two modified tripeptides and their different applications

Precise tip shape transformation of nanopillars for enhanced dry adhesion strength

Shear-induced onion formation of polymer-grafted lamellar phase

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Multilayer vesicles, tubes, various porous structures and organo gels through the solvent-assisted self-assembly of two modified tripeptides and their different applications

Content Provider	Royal Society of Chemistry (RSC)
Author	Pramanik, Animesh Koley, Pradyot
Copyright Year	2012
Abstract	A set of two modified tripeptides containing conformationally rigid m-aminobenzoic acid (m-ABA) as a template at the C-terminal self-assemble to form diverse micro- and nanostructure materials such as nanovesicles, nanotubes, giant microvesicles, macroporous vesicular structures including macroporous films, macro- and mesoporous materials, and organo gels—depending upon the solvent polarity. A balanced participation of the hydrogen bonding and the π–π interactions mainly between aromatic rings of m-ABA is crucial for this morphological diversity. Insertion of an aromatic amino acid instead of an aliphatic one in the peptide sequence drastically changes the morphology of the nanostructures formed from a particular solvent system. Interestingly these short hydrophobic peptides form salt-responsive multilayer vesicular structures from methanolic solutions, where the diameter of the vesicles increases with an increase of concentration. The most important property of these multilayer vesicular structures is the encapsulation of a potent natural hydrophobic drug curcumin and of a fluorescent dye rhodamine B, which can be effectively released in presence of biocompatible metal ions. Moreover, the encapsulation efficiency and release profile of drug and other biologically important guest molecules have been successfully quantified. We have developed a simple modified peptide based organogelator from chloroform, where the xerogel shows the striking property of adsorbing dye rhodamine B from water, which can be utilized in water purification by removing the toxic dye from waste water. Short peptide based macroporous vesicular structures including macroporous films have been successfully fabricated through controlled self-assembly employing solvents with different chloroform–petroleum ether ratios. Furthermore, the mesoporous structures prepared from toluene can efficiently absorb I2.
Starting Page	5364
Ending Page	5374
Page Count	11
File Format	HTM / HTML PDF
ISSN	1744683X
Volume Number	8
Issue Number	19
Journal	Soft Matter
DOI	10.1039/c2sm25205h
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Rhodamine Chloroform Ether Aliphatic compound Toluene Nanostructure Hydrophobe C-terminus Mesoporous material Dye Self-assembly Carboxylic acid Biocompatibility Curcumin Solvent Peptide Hydrogen bond
Content Type	Text
Resource Type	Article
Subject	Chemistry Condensed Matter Physics

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Multilayer vesicles, tubes, various porous structures and organo gels through the solvent-assisted self-assembly of two modified tripeptides and their different applications

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