RSC - Soft Matter latest articles

Interfacial viscoelasticity controls buckling, wrinkling and arrest in emulsion drops undergoing mass transfer

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25438G, Paper

Philipp Erni, Huda A. Jerri, Kenneth Wong, Alan Parker
Emulsion drops undergoing compositional ripening tend to buckle, wrinkle and 'jam' if a dense adsorption layer with significant interfacial shear elasticity is present.
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Characterization of dynamics and internal structure of a mixed-surfactant wormlike micellar system using NMR and rheometry

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25237F, Paper

Suliman Barhoum, Rolando Castillo, Anand Yethiraj
We elucidate the structure and dynamics of a multicomponent wormlike micellar system using NMR and rheometry. Dynamics studied in two hydrodynamic regimes exhibit two distinct polymer-like scalings.
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Transient and steady-state shear banding in aging soft glassy materials

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25299F, Paper

Jeffrey D. Martin, Y. Thomas Hu
For an aging Laponite soft glass, conditions were determined where transient and steady-state shear banding occur, including a scenario where banding is "trapped" by aging of the low shear band.
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Hierarchically structured porous aluminum surfaces for high-efficient removal of condensed water

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25828E, Communication

Min He, Xin Zhou, Xiping Zeng, Dapeng Cui, Qiaolan Zhang, Jing Chen, Huiling Li, Jianjun Wang, Zexian Cao, Yanlin Song, Lei Jiang
High-efficient removal of condensed water was achieved on hierarchically structured porous aluminum surfaces with designed work of adhesion.
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A pH-sensitive macro- and nanohydrogel constructed from cationic hydroxyl-containing hyperbranched polycarbonate

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25280E, Paper

Hui-zhen Jia, Hua-fen Wang, Chen-wei Liu, Cao Li, Juan Yang, Xiao-ding Xu, Jun Feng, Xian-zheng Zhang, Ren-xi Zhuo
A pH-sensitive hyperbranched polymeric nanohydrogel, namely poly(EHDO-co-ADMC), which contained many hydroxyl and tertiary amine groups, was facilely fabricated.
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Photodeformable polymer gels and crosslinked liquid-crystalline polymers

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25474C, Review Article

Jia Wei, Yanlei Yu
This review describes the advances in the field of photomanipulation regarding both polymer gels and crosslinked liquid-crystalline polymers, focusing on photodeformable properties and applications.
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Effects of molecular chirality on superstructural chirality in liquid crystalline dark conglomerate phases

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25763G, Paper

Hale Ocak, Belk[i without dot]z Bilgin-Eran, Marko Prehm, Carsten Tschierske
Homogeneously chiral polyphilic bent-core molecules with oligo(dimethylsiloxane) end groups form "dark enantiomer phases" (DE*), the homochiral analogues of the dark conglomerate phases (DC^[*^]), representing sponge-like deformed ferroelectric switching polar and chiral smectic phases.
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Oscillatory shear-induced 3D crystalline order in colloidal hard-sphere fluids

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07156H, Paper

T. H. Besseling, M. Hermes, A. Fortini, M. Dijkstra, A. Imhof, A. van Blaaderen
We investigated oscillatory shear-induced 3D crystalline order in colloidal hard-sphere suspensions that are fluid in equilibrium.
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A peptide-based material for therapeutic carbon monoxide delivery

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25785H, Communication

John B. Matson, Matthew J. Webber, Vibha K. Tamboli, Benjamin Weber, Samuel I. Stupp
We report on the preparation of the first material for therapeutic delivery of CO.
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Topography-mediated apical guidance in epidermal wound healing

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM00030J, Paper

Anastasios Marmaras, Tobias Lendenmann, Gianluca Civenni, Davide Franco, Dimos Poulikakos, Vartan Kurtcuoglu, Aldo Ferrari
Contact guidance based on the apical, adhesion-free interaction between migrating cells and an anisotropic surface topography leads to faster healing in an in vitro wound model.
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Directed persistent motion maintains sheet integrity during multi-cellular spreading and migration

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07208D, Paper

Kenechukwu David Nnetu, Melanie Knorr, Dan Strehle, Mareike Zink, Josef A. Kas
We report on the spreading and dynamics of epithelial and fibroblast cells and account on the impact of crowding on the dynamics of the monolayer and the maintenance of the monolayer's integrity.
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In situ neutron reflectivity studies of the adsorption of DNA by charged diblock copolymer monolayers at the air-water interface

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25297J, Paper

Po-Wei Yang, Tsang-Lang Lin, I-Ting Liu, Yuan Hu, Michael James
The absorption of 700 bp DNA by a charged diblock copolymer monolayer at the air-water (D₂O) interface was investigated by surface pressure measurements and neutron reflectometry.
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The effect of Janus nanospheres on the phase separation of immiscible polymer blends via dissipative particle dynamics simulations

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25086A, Paper

Manxia Huang, Ziqi Li, Hongxia Guo
The snapshots of Janus and homogeneous nanospheres adsorbed at interfaces (upper); the desorption of Janus nanospheres compared with homogeneous nanospheres (lower).
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Molecular dynamics and EPR spectroscopic studies of 8CB liquid crystal

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25429H, Paper

F. Chami, M. R. Wilson, V. S. Oganesyan
A combined approach of atomistic MD simulations and Electron Paramagnetic Resonance (EPR) spectroscopy with the doped nitroxide spin probe reveals details of the order and dynamics of the molecules in 8CB nematic liquid crystal.
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Oil-in-water Pickering emulsions stabilized by colloidal particles from the water-insoluble protein zein

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07417F, Paper

Julius W. J. de Folter, Marjolein W. M. van Ruijven, Krassimir P. Velikov
The fabrication of fully natural, surfactant-free and biodegradable oil-in-water Pickering emulsions is demonstrated for zein colloidal particles, introducing water-insoluble proteins as a novel class of particle-stabilizers.
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Preparation of pH-sensitive polyacrylic acid hollow microspheres and their release properties

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25135C, Paper

Huarong Hu, Haitao Wang, Qiangguo Du
The pH-sensitive polyacrylic acid hollow microspheres are fabricated via Pickering polymerization of acrylonitrile followed by hydrolysis.
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Self-assembly and luminescence of pyrazole supergelators

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25726B, Paper

Sandra Moyano, Jose Luis Serrano, Anabel Elduque, Raquel Gimenez
Chiral and luminescent supergels with reversible amplification of the molecular chirality by supramolecular polymerisation/depolymerisation and AIEE effect are described.
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Chemical approaches to synthetic polymer surface biofunctionalization for targeted cell adhesion using small binding motifs

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07407A, Review Article

Guillaume Delaittre, Alexandra M. Greiner, Thomas Pauloehrl, Martin Bastmeyer, Christopher Barner-Kowollik
In the present review the principal strategies to chemically modify the surface of synthetic polymeric materials with small molecules for targeted cell adhesion are collated and critically discussed.
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Interfacial polymer phase segregation and self-assembly of square colloidal crystals

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25808K, Communication

Matthew M. Shindel, Szu-Wen Wang, Ali Mohraz
Self-assembly of square colloidal crystals on curved interfaces.
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Evidence for membrane flow through pores in stacked phospholipid membranes

Soft Matter, 2012, 8,6220-6225
DOI: 10.1039/C2SM25629K, Paper

Irep Gozen, Paul Dommersnes, Owe Orwar, Aldo Jesorka
We present evidence for an inter-bilayer transport mode of lipid molecules in solid-supported double bilayer membranes via membrane defects.
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The fundamental role of flexibility on the strength of molecular binding

Soft Matter, 2012, 8,6385-6392
DOI: 10.1039/C2SM25160D, Paper

Christopher Forrey, Jack F. Douglas, Michael K. Gilson
A fundamental relationship between binding affinity and molecular flexibility is demonstrated via molecular dynamics simulations of binding of a series of model molecular pairs with equivalent interaction potentials but varying chain flexibility.
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Insights into the endosomal escape mechanism via investigation of dendrimer-membrane interactions

Soft Matter, 2012, 8,6378-6384
DOI: 10.1039/C2SM25538C, Paper

Wen-de Tian, Yu-qiang Ma
An endosomal escape mechanism of pH-sensitive nanoparticles was suggested via computer simulations of dendrimer-membrane interactions.
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Absolute electrostatic force between two charged particles in a low dielectric solvent

Soft Matter, 2012, 8,6210-6213
DOI: 10.1039/C2SM25602A, Communication

A. J. Stace, E. Bichoutskaia
A new theoretical solution to the problem of how charged particles of dielectric materials interact with one another in non-polar solvents gives excellent agreement with experimental measurements of the force between charged particles.
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Thermoresponsive supramolecular dendronized copolymers with tunable phase transition temperatures

Soft Matter, 2012, 8,6371-6377
DOI: 10.1039/C2SM25285F, Paper

Jiatao Yan, Xiaoqian Zhang, Wen Li, Xiuqiang Zhang, Kun Liu, Peiyi Wu, Afang Zhang
Supramolecular dendronized copolymerization offers a convenient access to form thermoresponsive copolymers with tunable phase transition temperatures by varying comonomer ratios.
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pH and ion-species sensitive fluorescence properties of star polyelectrolytes containing a triphenylene core

Soft Matter, 2012, 8,6364-6370
DOI: 10.1039/C2SM25524C, Paper

Fenggui Chen, Chunliang Li, Xiaoyan Wang, Guangming Liu, Guangzhao Zhang
The fluorescence intensities of star PDEM and PAA are dominated by aggregation induced quenching and nonradiative relaxation, respectively.
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Magnetic field responsive silicone elastomer loaded with short steel wires having orientation distribution

Soft Matter, 2012, 8,6206-6209
DOI: 10.1039/C2SM25442E, Communication

Tsunehisa Kimura, Yusuke Umehara, Fumiko Kimura
A silicone elastomer-short steel wire composite is fabricated, which exhibits a large deformation under applied magnetic fields.
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AFM protein-protein interactions within the EcoR124I molecular motor

Soft Matter, 2012, 8,6358-6363
DOI: 10.1039/C2SM07213K, Paper

Aneta E. Sikora, James R. Smith, Sheelagh A. Campbell, Keith Firman
Dynamic force microscopy has been used to measure protein-protein subunit interactions of a molecular motor for bionanotechnology applications.
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Unexpected [small beta]-sheets and molecular orientation in flagelliform spider silk as revealed by Raman spectromicroscopy

Soft Matter, 2012, 8,6350-6357
DOI: 10.1039/C2SM25351H, Paper

Thierry Lefevre, Michel Pezolet
Raman spectromicroscopy reveals the molecular structure of flagelliform silks and the role of the spacer region of the sequences.
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Pattern formation induced by an electric field in a polymer-air-polymer thin film system

Soft Matter, 2012, 8,6333-6349
DOI: 10.1039/C2SM25273B, Paper

George Amarandei, Philippe Beltrame, Ian Clancy, Colm O'Dwyer, Arousian Arshak, Ullrich Steiner, David Corcoran, Uwe Thiele
An experimental and theoretical study of pattern formation is presented for electrically destabilised and energetically coupled thin polymer films with different mobilities and permittivities.
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Properties of short polystyrene chains confined between two gold surfaces through a combined density functional theory and classical molecular dynamics approach

Soft Matter, 2012, 8,6320-6332
DOI: 10.1039/C2SM25567G, Paper

Karen Johnston, Vagelis Harmandaris
A quantum-classical study of thin polystyrene films between gold surfaces shows that increasing confinement slows the dynamics of the polymer.
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Structural properties of the dipolar hard-sphere fluid at low temperatures and densities

Soft Matter, 2012, 8,6310-6319
DOI: 10.1039/C2SM25192B, Paper

Lorenzo Rovigatti, John Russo, Francesco Sciortino
With state-of-the-art computer simulations we reveal the structural properties of dipolar hard spheres in the low-density and low-temperature regime. Most notably we observe an abundance of ring structures on cooling, providing a case where condensation is suppressed by self-assembly.
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Advancing modes on regularly patterned substrates

Soft Matter, 2012, 8,6301-6309
DOI: 10.1039/C2SM25156F, Paper

Ciro Semprebon, Stephan Herminghaus, Martin Brinkmann
In this article we numerically study the static advancing contact angle [small theta]⁺_a of a liquid interface in contact with a microstructured substrate equipped with a periodic array of circular posts of height H, diameter W and center to center distance D
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Spontaneous and deterministic three-dimensional curling of pre-strained elastomeric bi-strips

Soft Matter, 2012, 8,6291-6300
DOI: 10.1039/C2SM25278C, Paper

Jiangshui Huang, Jia Liu, Benedikt Kroll, Katia Bertoldi, David R. Clarke
Three-dimensional hemi-helical shape produced by elongating one elastomer strip, joining it side-by-side to another and then releasing. It consists of alternating helical sections of opposite chiralities, each separated by a perversion.
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Electrically conductive polymeric photonic crystals

Soft Matter, 2012, 8,6280-6290
DOI: 10.1039/C2SM06740D, Paper

Yusuke Imai, Chris E. Finlayson, Pola Goldberg-Oppenheimer, Qibin Zhao, Peter Spahn, David R. E. Snoswell, Andrew I. Haines, G. Peter Hellmann, Jeremy J. Baumberg
Electrically conductive polymeric 3D photonic crystals are prepared by the shear ordering of composites consisting of monodisperse core-shell polymer spheres and single-walled carbon nanotubes.
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Multi-layered polycaprolactone-alginate-fucoidan biocomposites supplemented with controlled release of fucoidan for bone tissue regeneration: fabrication, physical properties, and cellular activities

Soft Matter, 2012, 8,6264-6272
DOI: 10.1039/C2SM07256D, Paper

GyuHyun Jin, GeunHyung Kim
To control the fucoidan release, various weight fractions of alginate were accommodated as a controlled release material. As an active biological stimulator for regenerating bone tissue, continuously released fucoidan was used.
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Dipolar-molecule complexed chitosan carboxylate, phosphate, and sulphate dispersed electrorheological suspensions

Soft Matter, 2012, 8,6273-6279
DOI: 10.1039/C2SM25250C, Paper

Young Gun Ko, Hyun Jeong Lee, Seung Su Shin, Ung Su Choi
The electrorheological (ER) properties of highly dispersion-stable, biocompatible and biodegradable chitosan derivative dispersed ER suspensions are explored.
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Assessment of entanglement features and dynamics from atomistic simulations and experiments in linear and short chain branched polyolefins

Soft Matter, 2012, 8,6256-6263
DOI: 10.1039/C2SM25104C, Paper

Javier Ramos, Juan F. Vega, Javier Martinez-Salazar
We use atomistic simulations to demonstrate how short chain branching affects the entanglement features and molecular dynamics in polyolefins in the melt state. The results are in quantitative agreement with experimental data.
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Residue-level elucidation of the ligand-induced protein binding on phenyl-argarose microspheres by NMR hydrogen/deuterium exchange technique

Soft Matter, 2012, 8,6248-6255
DOI: 10.1039/C2SM25117E, Paper

Dong-Xia Hao, Corine Sandstrom, Yong-Dong Huang, Lennart Kenne, Jan-Christer Janson, Guang-Hui Ma, Zhi-Guo Su
Hydrogen/deuterium exchange and NMR TOCSY enables the identification of protein's binding site and unfolding on phenyl-ligand modified surface.
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Dual pH-triggered physical gels prepared from mixed dispersions of oppositely charged pH-responsive microgels

Soft Matter, 2012, 8,6239-6247
DOI: 10.1039/C2SM25581B, Paper

James McParlane, Damien Dupin, Jennifer M. Saunders, Sarah Lally, Steven P. Armes, Brian R. Saunders
Mixtures of oppositely charged pH-responsive microgels enable physical gels to be triggered by a switch to low or high pH and provide enhanced mechanical properties.
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Hierarchical structured sol-gel coating by laser textured template imprinting for surface superhydrophobicity

Soft Matter, 2012, 8,6232-6238
DOI: 10.1039/C2SM25371B, Paper

Linda Y. L. Wu, Q. Shao, X. C. Wang, H. Y. Zheng, C. C. Wong
Laser template imprinting and sol-gel coating make durable superhydrophobic surfaces with self-cleaning properties comparable to the natural lotus leaf.
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Design of patchy particles using ternary self-assembled monolayers

Soft Matter, 2012, 8,6226-6231
DOI: 10.1039/C2SM00014H, Paper

Ines C. Pons-Siepermann, Sharon C. Glotzer
Coarse-grained molecular simulations of nanoparticles with ternary self-assembled monolayers of surfactants predict novel patterns through judicious choice of design parameters.
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Grain refinement and partitioning of impurities in the grain boundaries of a colloidal polycrystal

Soft Matter, 2012, 8,6214-6219
DOI: 10.1039/C2SM25488C, Paper

Neda Ghofraniha, Elisa Tamborini, Julian Oberdisse, Luca Cipelletti, Laurence Ramos
We investigate the crucial role of nanoparticles as grain refiners and their segregation in the grain boundaries of a colloidal polycrystal.
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Microrheology of biomaterial hydrogelators

Soft Matter, 2012, 8,6198-6205
DOI: 10.1039/C2SM25187F, Emerging Area

Kelly M. Schultz, Eric M. Furst
Small sample volumes, a large dynamic response and short acquisition times make microrheology important for characterizing emerging biomaterial hydrogelators.
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Diffusive behaviour of PLL-PEG coated colloids on [small lambda]-DNA brushes - tuning hydrophobicity

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25296A, Paper

Taiki Yanagishima, Lorenzo Di Michele, Jurij Kotar, Erika Eiser
The hydrophobic nature of DNA causes pH-dependent stickiness to PLL-PEG stabilized silica colloids, leading to a reduced diffusivity on grafted DNA layers.
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Mediating polymer crystal orientation using nanotemplates from block copolymer microdomains and anodic aluminium oxide nanochannels

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25583A, Review Article

Ming-Champ Lin, Bhanu Nandan, Hsin-Lung Chen
This review focuses on an overview of the orientation behavior of polymer crystals under the influence of one-dimensional (1-D) and two-dimensional (2-D) confinement.
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Dipeptide hydrogel formation triggered by boronic acid-sugar recognition

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25713K, Paper

Stella Grigoriou, Eleanor K. Johnson, Lin Chen, Dave J. Adams, Tony D. James, Petra J. Cameron
Dipeptide gels have been made by the addition of fructose and phenylboronic acid.
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Pinch-off dynamics in foams, emulsions and suspensions

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25240F, Paper

F. M. Huisman, S. R. Friedman, P. Taborek
The break up of a non-Newtonian yield stress fluid bridge (acrylic paint, mayonnaise, hair gel, foam, and bentonite) was investigated.
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Ring formation by competition between entropic effect and thermophoresis

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25097G, Paper

Kenta Odagiri, Kazuhiko Seki, Kazue Kudo
We have theoretically investigated colloidal distribution in a polymer solution under an isotropic temperature gradient, inspired by the recent experimental observation of accumulation, ring-like distribution, and depletion of colloids depending on the polymer concentration.
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Optimizing layer-by-layer deposition of interpolymer complexes on solid substrates using Biacore

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25652E, Paper

Samuel C. Bizley, Adrian C. Williams, Fred Kemp, Vitaliy V. Khutoryanskiy
The layer-by-layer deposition of polymers onto surfaces allows the fabrication of multilayered materials for a wide range of applications, from drug delivery to biosensors.
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Self-assembly of spherical interpolyelectrolyte complexes from oppositely charged polymers

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25423A, Paper

Vladimir A. Baulin, Emmanuel Trizac
The formation of inter-polyelectrolyte complexes from the association of oppositely charged polymers in an electrolyte is studied. Complexes may form with a charged core and a more dilute corona of dangling chains (A) or of loops (B).
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Towards homogeneous dynamics in incompatible blends by selective transesterification

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25403D, Paper

Daniel E. Martinez-Tong, Michelina Soccio, Alejandro Sanz, Tiberio A. Ezquerra, Nadia Lotti, Andrea Munari, Aurora Nogales
Evolution from two component dynamics in incompatible blends towards homogeneous dynamics followed by dielectric spectroscopy
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PFG-NMR self-diffusion measurements in the single phase channels of a microemulsion system with an anionic-nonionic surfactant mixture

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07301C, Paper

Lukas Wolf, Heinz Hoffmann, Jurgen Linders, Christian Mayer
The single phase channels of a presently reported microemulsion system were investigated by electrical conductivity and pulsed-field gradient nuclear magnetic resonance (PFG-NMR) spectroscopy.
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A constitutive model for the large deformation of a self-healing gel

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25367D, Paper

Chung-Yuen Hui, Rong Long
We developed a 3D finite strain constitutive model for the deformation of self-healing gels with reformable cross-links.
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X-ray diffraction study of nanocrystalline and amorphous structure within major and minor ampullate dragline spider silks

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25373A, Paper

Sujatha Sampath, Thomas Isdebski, Janelle E. Jenkins, Joel V. Ayon, Robert W. Henning, Joseph P. R. O. Orgel, Olga Antipoa, Jeffery L. Yarger
Synchrotron X-ray microdiffraction of major and minor ampullate silk fibers allows for detailed structural elucidation of several types of dragline spider silks.
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An underwater pH-responsive superoleophobic surface with reversibly switchable oil-adhesion

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25421B, Paper

Qunfeng Cheng, Mingzhu Li, Fu Yang, Mingjie Liu, Lin Li, Shutao Wang, Lei Jiang
We successfully demonstrated an underwater pH-responsive superoleophobic surface with reversible oil-adhesion switching on a nanostructured poly(acrylic acid) (PAA) surface.
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Plenty of room to crystallize: swollen lipidic mesophases for improved and controlled in-meso protein crystallization

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25249J, Paper

Alexandru Zabara, Raffaele Mezzenga
Increasing mesophase water channel diameter by hydration-enhancing surfactants opens up in-meso crystallization to an array of previously inaccessible proteins.
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Interactions of PEO-PPO-PEO block copolymers with lipid membranes: a computational and experimental study linking membrane lysis with polymer structure

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25327E, Paper

Selina Nawaz, Martin Redhead, Giuseppe Mantovani, Cameron Alexander, Cynthia Bosquillon, Paola Carbone
Predicted conformation assumed by Pluronics L64 (EO₁₄-PO₃₁-EO₁₄) in DPPC lipid membranes.
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Self-assembly of nanorods on soft elastic shells

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25477H, Paper

Xiaohui Wen, Dong Zhang, Aihua Chai, Linli He, Shiyong Ran, Linxi Zhang
The self-assembly behavior of nanorods (NRs) on a soft elastic shell depend on the length of the adsorbed nanorods as well as the bending energy of the elastic shell.
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A tetrazole-based metallogel induced with Ag+ ion and its silver nanoparticle in catalysis

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25316J, Paper

Ji Ha Lee, Sunwoo Kang, Jin Yong Lee, Jong Hwa Jung
Hydrogelation of the tetrazole-based derivative (1) results in the formation of a Ag⁺ metallogel. The silver nanoparticles can effectively catalyze reduction of 4-nitrophenol by sodium borohydride in aqueous solution.
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Phase behavior of block copolymer solutions in thin films studied by Monte Carlo simulations

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25806D, Paper

P. Knychala, M. Banaszak, P. Polanowski
Thin films of diblock copolymers in selective solvent are examined by Monte Carlo simulations. Layers, hexagonally packed disks and disordered micelles are observed.
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Interaction of toroidal focal conic defects with shear flow

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07377C, Paper

Sourav Chatterjee, Shelley L. Anna
Simple shear flow applied to anchored toroidal focal conic defects in smectic liquid crystals leads to the formation of satellite defects with sizes controlled by the size of the main defect.
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Surfactant adsorption and aggregate structure at silica nanoparticles: Effects of particle size and surface modification

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25648G, Paper

Bhuvnesh Bharti, Jens Meissner, Urs Gasser, Gerhard H. Findenegg
Adsorption and SANS studies reveal effects of surface energy and curvature on the self-assembly of nonionic surfactants at nanoparticles.
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Lipid-core nanocapsules: mechanism of self-assembly, control of size and loading capacity

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25754H, Paper

Denise S. Jornada, Luana A. Fiel, Kelly Bueno, Josepe F. Gerent, Cesar L. Petzhold, Ruy C. R. Beck, Silvia S. Guterres, Adriana R. Pohlmann
Model of the mechanism of the self-assembly of lipid-core nanocapsules.
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SAXS and SANS characterization of gelable polystyrene-b-poly(acryloxy propyl triethoxysilane) (PS-b-PAPTES) diblock copolymer micelles before and after hydrolysis-condensation

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25412C, Paper

Ce Guinto Gamys, Emmanuel Beyou, Elodie Bourgeat-Lami, Laurent David, Julian Oberdisse
The micellar structural regime of gelable and PS-b-PAPTES diblock copolymers in a mixture of dioxane and methanol was investigated by SAXS and SANS measurements. Corona shrinkage of the micelles was observed after the sol-gel cross-linking process.
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Effect of lipid architecture on cubic phase susceptibility to crystallisation screens

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25705J, Paper

Charlotte E. Conn, Connie Darmanin, Xavier Mulet, Adrian Hawley, Calum J. Drummond
The stability of different cubic phases to crystallisation screens used for in meso crystallisation depends strongly on the lipid molecular architecture.
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Assessing structure and dynamics of fibrinogen films on silicon nanofibers: towards hemocompatibility devices

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25489A, Paper

Natalia Hassan, Valeria Verdinelli, Juan M. Ruso, Paula V. Messina
Si-nanofiber surface features critically influence the amount, structure and distribution of fibrinogen adsorption, promoting the formation of an extensive network similar to those that exist in nature between fibrin units.
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Hydrodynamically directed multiscale assembly of shaped polymer fibers

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07429J, Paper

Adam R. Shields, Christopher M. Spillmann, Jawad Naciri, Peter B. Howell, Abel L. Thangawng, Frances S. Ligler
Microfluidic hydrodynamic focusing simultaneously directs molecular orientation (via shear) and cross-sectional shape (via groove-driven advection) of a photopolymerized microfiber.
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Reversible long-range patterning of gold nanoparticles by smectic liquid crystals

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25445J, Paper

Jonathan Milette, Sabrina Relaix, Cyrille Lavigne, Violeta Toader, Stephen J. Cowling, Isabel M. Saez, R. Bruce Lennox, John W. Goodby, Linda Reven
Gold nanoparticles dispersed in homeotropically aligned smectic liquid crystal reversibly assemble into linear and curved arrays in a wedge cell and at a meniscus respectively.
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Enhanced activity of cyclic transporter sequences driven by phase behavior of peptide-lipid complexes

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25405K, Communication

Kun Zhao, Uh-Joo Choe, Daniel T. Kamei, Gerard C. L. Wong
By varying the shape and/or hydrophobicity, the peptides can have dramatic changes in their translocation efficiency.
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Effects of nanoparticles and surfactant on droplets in shear flow

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25209K, Paper

Stefan Frijters, Florian Gunther, Jens Harting
Massive spherical nanoparticles increase the deformation of fluid droplets in shear flow. Further effects of nanoparticles on the stability and deformation of particle-covered droplets are explored as well and compared to those of surfactant.
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Focal conics in a smectic-A liquid crystal in microwrinkle grooves

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25416F, Paper

Takuya Ohzono, Yoshiko Takenaka, Jun-ichi Fukuda
A self-organized regular array of focal conic domains in a smectic-A liquid crystal confined in a curved groove of microwrinkles with a hybrid alignment condition.
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The impact of ceramides NP and AP on the nanostructure of stratum corneum lipid bilayer. Part I: neutron diffraction and 2H NMR studies on multilamellar models based on ceramides with symmetric alkyl chain length distribution

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25420D, Paper

Tanja N. Engelbrecht, Annett Schroeter, Thomas Hau[German sz ligature}, Bruno Deme, Holger A. Scheidt, Daniel Huster, Reinhard H. H. Neubert
Ceramides AP and NP induce different lamellar architectures in ternary stratum corneum lipid model membranes.
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Incorporation of DOPE into lipoplexes formed from a ferrocenyl lipid leads to inverse hexagonal nanostructures that allow redox-based control of transfection in high serum

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM00047D, Paper

John P. E. Muller, Burcu S. Aytar, Yukishige Kondo, David M. Lynn, Nicholas L. Abbott
Mixtures of the redox-active lipid BFDMA and DOPE form H_II^c lipoplexes with DNA, and enable control of cell transfection in high levels of serum.
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Probing in cell protein structural changes with time-resolved X-ray scattering

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25676B, Communication

Alessandro Spilotros, Matteo Levantino, Giorgio Schiro, Marco Cammarata, Michael Wulff, Antonio Cupane
Time-resolved wide-angle X-ray scattering monitors protein structural changes directly in the cellular environment.
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Cavity growth in a triblock copolymer polymer gel

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25458A, Paper

Aline Delbos, Jun Cui, Sami Fakhouri, Alfred J. Crosby
Cavitation rheology is a recently developed measurement method for studying the mechanical properties of polymer gels from sub-micron to millimeter length scales at arbitrary locations within the network material.
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Tuning suspension rheology using capillary forces

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25681A, Paper

Erin Koos, Julia Johannsmeier, Linda Schwebler, Norbert Willenbacher
The experimentally observed rheological features of capillary state suspensions, suspensions with the addition of a second immiscible fluid, can be modified through changes in the particle size, interfacial tension, and the addition of surfactants.
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Albumin release from a brain-resembling superabsorbent magnetic hydrogel based on starch

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25638J, Paper

Marcos R. Guilherme, Rodrigo S. Oliveira, Marcos R. Mauricio, Thelma S. P. Cellet, Guilherme M. Pereira, Marcos H. Kunita, Edvani C. Muniz, Adley F. Rubira
Superabsorbent magnetic hydrogels were developed from starch via photocopolymerization for controlled albumin release. The iodine test revealed the actual 3D network structure of starch within the swollen hydrogel.
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Interplay between dipole and quadrupole modes of field influence in liquid-crystalline suspensions of ferromagnetic particles

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07390K, Paper

D. V. Makarov, A. N. Zakhlevnykh
Electric field induces re-entrant behavior of magnetic Freedericksz transition in suspensions of ferromagnetic particles in nematic liquid crystals and changes the transition character from the first to the second order.
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Adsorption behaviors and structural transitions of organic cations on an anionic lipid monolayer at the air-water interface

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25252J, Paper

Joon Heon Kim, Sang-Youp Yim, Myoung-Kyu Oh, Minh Dinh Phan, Kwanwoo Shin
Adsorption behaviors of organic cations on an anionic lipid monolayer depending on the different thermodynamic phases of the lipid monolayer.
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Hierarchical surface wrinkles directed by wrinkled templates

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25328C, Paper

Jian Yin, Conghua Lu
Hierarchical well-defined wrinkles from the good organization of the symmetric single mode (SSm) and symmetric double mode (SDm) have been fabricated by the clever combination of the novel structured template of wrinkles, the film thickness, and the use of template-directed wrinkling (TDW) two times. The unprecedented TDW on the as-formed wrinkles has been discussed briefly.
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Stimuli-responsive polymers grafted to nanopores and other nano-curved surfaces: structure, chemical equilibrium and transport

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25777G, Review Article

Mario Tagliazucchi, Igal Szleifer
This review discusses the fundamental understanding of pH and temperature responsive macromolecular layers on nano-curved surfaces.
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Investigation of the relationships between the thermodynamic phase behavior and gelation behavior of a series of tripodal trisamide compounds

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25415H, Paper

Li Feng, Kevin A. Cavicchi
The regular solution model is used to study the links between the thermodynamic phase behavior and gelation ability of low molecular mass organogelators.
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Structural aspects of polyanion and hydrophobically modified polycation multilayers on hydrophilic or hydrophobic surfaces

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25658D, Paper

Jorge Amim, Francisco C. B. Maia, Paulo B. Miranda, Marcela D. Urzua, Denise F. S. Petri
The structural aspects of multilayers of poly(4-vinyl-N-ethylpyridinium bromide), QPVP-C2, or poly(4-vinyl-N-pentylpyridinium bromide), QPVP-C5, deposited alternately with carboxymethylcellulose (CMC) onto Si/SiO₂ wafers or polystyrene (PS) films were investigated.
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Phase behavior of gradient copolymer solutions: a Monte Carlo simulation study

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25577D, Paper

Gunja Pandav, Victor Pryamitsyn, Keith C. Gallow, Yueh-Lin Loo, Jan Genzer, Venkat Ganesan
Phase behavior of gradient copolymer solutions is rationalized based on their sequence correlations.
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Fundamental differences in model cell-surface polysaccharides revealed by complementary optical and spectroscopic techniques

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25239B, Paper

Gareth M. Holder, Andrew Bowfield, Mark Surman, Michael Suepfle, David Moss, Carole Tucker, Timothy R. Rudd, David G. Fernig, Edwin A. Yates, Peter Weightman
Differences in the properties of cell surface polysaccharides revealed by complementary spectroscopic techniques.
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Nanogel formation of polymer solutions flowing through porous media

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25654A, Paper

Laura Campo-Deano, Francisco J. Galindo-Rosales, Fernando T. Pinho, Manuel A. Alves, Monica S. N. Oliveira
Gel formation by the flow of dilute aqueous polyacrylamide solutions with sodium chloride through porous media.
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Polymer diffusion in a polymer nanocomposite: effect of nanoparticle size and polydispersity

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25269D, Paper

Sangah Gam, Jeffrey S. Meth, Steve G. Zane, Changzai Chi, Barbara A. Wood, Karen I. Winey, Nigel Clarke, Russell J. Composto
Tracer diffusion of deuterated polystyrene in a polystyrene nanocomposite is measured as a function of nanoparticle size and dispersity, and the reduced diffusion coefficient collapses onto a master curve.
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Force microscopic and thermodynamic analysis of the adhesion between Pseudomonas aeruginosa and Candida albicans

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25100K, Paper

Ekaterina S. Ovchinnikova, Bastiaan P. Krom, Henny C. van der Mei, Henk J. Busscher
Mannoprotein-layers present on hyphae, but absent on yeast, create favorable conditions for strong adhesion forces between P. aeruginosa and C. albicans.
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Microfluidic synthesis of monodisperse porous microspheres with size-tunable pores

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25694K, Paper

Wynter J. Duncanson, Maximilian Zieringer, Olaf Wagner, James N. Wilking, Alireza Abbaspourrad, Rainer Haag, David A. Weitz
Monodisperse porous biodegradable microspheres are produced in microfluidic devices. A perfluorinated dendrimer-dye complex is used as a novel pore-forming agent or porogen; this yields permanent pores with additional 15 functionality. Thus, the resulting microspheres can be loaded with an active material in the matrix, and another one attached to the pores.
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Phase behaviour and complex coacervation of aqueous polypeptide solutions

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25604E, Paper

Dimitrios Priftis, Matthew Tirrell
Optical micrographs and physical observation of vials illustrating the formation of polypeptide complex precipitates and coacervates.
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Non-affine deformations in polymer hydrogels

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25364J, Review Article

Qi Wen, Anindita Basu, Paul A. Janmey, Arjun G. Yodh
This paper reviews the current understanding, both theoretical and experimental, of non-affine deformations in polymer hydrogels.
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Actuating individual electrospun hydrogel nanofibres

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25387A, Paper

Adrian Gestos, Philip G. Whitten, Gordon G. Wallace, Geoffrey M. Spinks
Individual nanofibres were stretched using the cantilever of an atomic force microscope and swelling and contraction due to changing pH measured by the cantilever twist.
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Finite element simulation of swelling-induced crack healing in gels

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25399B, Paper

Jiaping Zhang, Yonghao An, Kyle Yazzie, Nikhilesh Chawla, Hanqing Jiang
Finite element simulations have been conducted to study the healing of the crack tip due to the swelling of the gel. This cracking healing process is also verified by experiments.
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Engineering FRET processes within synthetic polymers, polymeric assemblies and nanoparticles via modulating spatial distribution of fluorescent donors and acceptors

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM25582K, Highlight

Changhua Li, Jinming Hu, Shiyong Liu
This article highlights recent developments of fluorescent polymers, polymeric assemblies and nanoparticles involving external stimuli-tunable FRET events.
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The interactions between charged colloids with rod-like counterions

Soft Matter, 2012, 8,5679-5686
DOI: 10.1039/C2SM07463J, Paper

Klemen Bohinc, John M. A. Grime, Leo Lue
The force between charged surfaces, mediated by rod-like counterions, is examined over a range of surface charge densities, counterion lengths, and valencies.
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Composition and structure of mixed phospholipid supported bilayers formed by POPC and DPPC

Soft Matter, 2012, 8,5658-5665
DOI: 10.1039/C2SM00013J, Paper

Anna Akesson, Tania Lind, Nicky Ehrlich, Dimitrios Stamou, Hanna Wacklin, Marite Cardenas
In this paper we present a systematic study of the morphology and composition of supported lipid bilayers (SLBs) formed by vesicle fusion using a wide variety of surface sensitive techniques that give information about the lateral as well as vertical structure and bilayer fluidity.
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Mechanisms of multi-shape memory effects and associated energy release in shape memory polymers

Soft Matter, 2012, 8,5687-5695
DOI: 10.1039/C2SM25292A, Paper

Kai Yu, Tao Xie, Jinsong Leng, Yifu Ding, H. Jerry Qi
Shape memory polymers have attracted increasing research interest due to their capability of fixing a temporary shape and associated deformation energy then releasing them later on demand.
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Transfer of lipid between triglyceride dispersions and lyotropic liquid crystal nanostructured particles using time-resolved SAXS

Soft Matter, 2012, 8,5696-5708
DOI: 10.1039/C2SM00048B, Paper

Adam J. Tilley, Yao-Da Dong, Josephine Y. T. Chong, Tracey Hanley, Nigel Kirby, Calum J. Drummond, Ben J. Boyd
We investigate the interparticle transfer of lipids between cubosomes/hexosomes and other dispersed lipids.
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Self-assembly of artificial microtubules

Soft Matter, 2012, 8,5666-5678
DOI: 10.1039/C2SM25068C, Paper

Shengfeng Cheng, Ankush Aggarwal, Mark J. Stevens
Self-assembly of wedge-shaped macromolecules, particularly the formation of tubular structures, is studied with molecular dynamics simulations, which provide a guidance for the synthesis of artificial microtubules.
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Adhesion mechanism in a DOPA-deficient foot protein from green mussels

Soft Matter, 2012, 8,5640-5648
DOI: 10.1039/C2SM25173F, Paper

Dong Soo Hwang, Hongbo Zeng, Qingye Lu, Jacob Israelachvili, J. Herbert Waite
Molecular interactions of a DOPA-deficient foot protein from green mussels, pvfp-1, were measured using a surface forces apparatus (SFA). The strong adhesion mechanism induced by cation-[small pi] interactions and conformational changes in pvfp-1 provides new insights for the development of biomimetic underwater adhesives.
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