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

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

Content Provider	Royal Society of Chemistry (RSC)
Author	Nyström, Andreas M. Wooley, Karen L.
Copyright Year	2008
Abstract	Shell cross-linked knedel-like (SCK) block copolymer micellar nanoparticles were prepared from poly(acrylic acid-b-octadecyl acrylate-co-decyl acrylate) and studied as unique systems, having tunable core melting transition temperatures (Tm). Tm depression was accomplished by diluting octadecyl acrylate with the co-monomer decyl acrylate in the construction of the hydrophobic block segment of amphiphilic block copolymers of similar lengths and chemical compositions. Organization of those block copolymers into micelles and cross-linking throughout the shell then afforded a series of SCKs that exhibited core Tm values ranging from 3 to 40 °C. Confinement of the side-chain crystalline polymer chains within the core of the SCKs resulted in depression and broadening of the Tm values, which increased by ca. 5 °C when the shell was hydrated, as determined by differential scanning calorimetry measurements in the dry and 30 % (w/w) hydrated states. Passage through the melting transition was also observed for the SCKs dispersed in water, by dynamic light scattering experiments, which revealed an expansion and then collapse in hydrodynamic diameter over the temperature range of core melting. As the crystalline-amorphous core behaviors could be tuned over physiological temperature ranges, these nanoparticles are expected to be of utility as tunable drug delivery devices, with control over the kinetics and conditions of packaging and release.
Starting Page	849
Ending Page	858
Page Count	10
File Format	HTM / HTML PDF
ISSN	1744683X
Volume Number	4
Issue Number	4
Journal	Soft Matter
DOI	10.1039/b719314a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Differential scanning calorimetry Shell Dynamic light scattering Acrylate Micelle Amphiphile Polymer Drug delivery Copolymer Hydrophobe
Content Type	Text
Resource Type	Article
Subject	Chemistry Condensed Matter Physics

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

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