RSC - Soft Matter latest articles

Molecular dynamics simulation studies of platelets with square cross-sectional area: formation of a stable cubatic phase

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06962H, Paper

Mark R. Wilson, Peter D. Duncan, Matthew Dennison, Andrew J. Masters
Computer simulation studies of colloidal platelets with square cross-sectional area show the formation of a cubatic phase.
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[small beta]-Amino acid containing proteolitically stable dipeptide based hydrogels: encapsulation and sustained release of some important biomolecules at physiological pH and temperature

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07168A, Paper

Jayanta Nanda, Arindam Banerjee
Proteolitically stable [small beta]-alanine containing N-terminal Fmoc (9-fluorenylmethyloxycarbonyl) conjugated dipeptide based hydrogels at physiological pH (7.46) and temperature (37[degree]C) have been discovered. These hydrogel matrices have been used for encapsulation and sustained release of water soluble vitamins B₂ and B₁₂ for 70 h.
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Hydrophobic droplets in amphiphilic bilayers: a coarse-grained mean-field theory study

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07193B, Paper

Martin J. Greenall, Carlos M. Marques
Hydrophobic droplets encapsulated in amphiphilic bilayers are studied using a coarse-grained mean-field model for a range of hydrophobic liquids.
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The anatomy of a crease, from folding to ironing

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07151G, Paper

Adrien Benusiglio, Vincent Mansard, Anne-Laure Biance, Lyderic Bocquet
We report on an experimental investigation of the impact of humidity on the unfolding of creases. A strong humidity dependence is found for multiscale weaved materials, with humidity greatly speeding up the unfolding process.
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Dielectric spectroscopy reveals nanoholes in erythrocyte ghosts

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06306A, Paper

Koji Asami
A single nanohole formed in each erythrocyte membrane by hypotonic hemolysis causes "[small alpha]-dispersion" at low frequencies below 10 kHz.
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Doubly crosslinked hydrogels prepared from pH-responsive vinyl-functionalised hollow particle dispersions

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07366H, Communication

Robert Bird, Somjit Tungchaiwattana, Tony Freemont, Brian R. Saunders
New vinyl-functionalised pH-responsive hollow particles are used to construct injectable covalent hydrogels that have interconnected porosity and high modulus.
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Interactions between suitably functionalised conformationally distinct benzanilides and phospholipid monolayers

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07147A, Paper

Sarah R. Dennison, Zaheer Akbar, David A. Phoenix, Timothy J. Snape
The interplay between phospholipid monolayers and two conformationally distinct, suitably functionalised benzanilides suggest a strong link exists between conformation and membrane interaction.
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Role of disclinations in determining the morphology of deformable fluid interfaces

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07384F, Communication

N. Ramakrishnan, John H. Ipsen, P. B. Sunil Kumar
Structures with a striking similarity to the that engendered by curvature sensing membrane proteins, can be spontaneously generated by in-plane order and the associated disclinations.
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A comparative study of cell behavior on different energetic and bioactive polymeric surfaces made from elastin-like recombinamers

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06893A, Paper

Carmen Garcia-Arevalo, Maria Pierna, Alessandra Girotti, Francisco Javier Arias, Jose Carlos Rodriguez-Cabello
Surface quality as a function of the topographic and bioactive design of multifunctional surfaces obtained from elastin-like recombinamers (ELRs) plays a significant role in the development of biomaterials and medical devices.
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C2-symmetric benzene-based hydrogels with unique layered structures for controllable organic dye adsorption

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06927J, Paper

Xiaoqiu Dou, Ping Li, Di Zhang, Chuan-Liang Feng
A C₂-symmetric benzene-based hydrogel with unique layered structure mimicking activated carbon is developed and found capable of controllable of adsorption of organic dyes (methylene blue and methyl violet 2B). 97-99% of the dyes can be efficiently and quickly adsorbed within two minutes, which shows promising in the fields of removing wastewater.
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Stable clusters in liposomic systems

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06907E, Paper

Juan Sabin, Gerardo Prieto, Felix Sarmiento
Liposomes seem to be a very suitable system for studying the formation of stable clusters in colloidal systems because they can combine many different attractive and repulsive forces.
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How cells feel their substrate: spontaneous symmetry breaking of active surface stresses

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06450B, Paper

Benjamin M. Friedrich, Samuel A. Safran
Adhered cells exert active forces on their substrate. Using theory, we propose that elastic restoring forces from the substrate can serve as a guidance cue for cell polarization.
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Counter-ion effect on surfactant-DNA gel particles as controlled DNA delivery systems

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07170C, Paper

M. Carmen Moran, Tania Alonso, Filipe S. Lima, M. Pilar Vinardell, M. Graca Miguel, Bjorn Lindman
We examined the effect of different counter-ions on the physicochemical properties and haemocompatibility of DNA gel particles as controlled DNA delivery systems.
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Self-assembling phenomena of benzo-18-crown-6/crowned-spirobenzopyran copolymers in aqueous solution and controlled release of entrapped organic dyes using external stimuli

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07131B, Paper

Yoshio Nakahara, Yuki Okazaki, Keiichi Kimura
The controlled release of organic dyes from polymeric micelles consisting of benzo-18-crown-6/crowned-spirobenzopyran copolymers was realized using a combination of UV-light and visible-light irradiation in water.
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Cholesteric mesophase in side-chain liquid crystalline polymers: influence of mesogen interdigitation and motional decoupling

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07115K, Paper

Suk-kyun Ahn, Manesh Gopinadhan, Prashant Deshmukh, Rubinder Kaur Lakhman, Chinedum O. Osuji, Rajeswari M. Kasi
The optimum length of the alkyl spacer is critical for side-chain liquid crystalline polymers bearing a cholesteryl moiety (a) to transform from the smectic to the cholesteric mesophase (b).
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Morphologies of block copolymers composed of charged and neutral blocks

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07223H, Review

Xiaojun Wang, Monojoy Goswami, Rajeev Kumar, Bobby G. Sumpter, Jimmy Mays
A new dimensionality for block copolymer morphologies (charges) is reviewed, which expands their potential for target-controlled self-assembly and new applications.
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Instantaneous and reversible gelation of organically grafted polyoxometalate complexes with dicarboxylic acids

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07142H, Paper

Zhenfeng He, Huanbing Wang, Yinglin Wang, Yue Wu, Haolong Li, Lihua Bi, Lixin Wu
A quick reversible hybrid gel is fabricated based on the hydrogen bonding between a pyridyl grafted polyoxometalate and dicarboxylic acids.
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Isotactic polystyrene nanorods with gradient crystallite states

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06896F, Paper

Hui Wu, Zhaohui Su, Atsushi Takahara
One-dimensional polymer nanorods with gradient crystallite distribution were demonstrated in this paper.
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Influence of DNA conformation on the dispersion of SWNTs: single-strand DNA vs. hairpin DNA

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07148G, Communication

Tilman C. Hain, Kristin Kroker, Dominik G. Stich, Tobias Hertel
Fluorescence energy transfer between dye labelled oligonucleotides and single-wall carbon nanotubes reveals differences in conjugate morphology.
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Electro-colloidal lithography: a versatile approach combining colloidal particles and electrical fields for the fabrication of patterned polymer and metal films

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07343A, Communication

Damien Bazin, Chrystel Faure
A new soft lithography technique for the preparation of ordered metal and polymer films has been developed which requires only colloidal particles and a voltage source.
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Self-assembly of a triple-zwitterion in polar solutions: hierarchical formation of nanostructures

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07153C, Paper

Thomas H. Rehm, Franziska Grohn, Carsten Schmuck
The self-assembly of a triple-zwitterionic building block was explored with several spectroscopic and microscopic techniques (DOSY NMR, DLS, SANS, AFM) revealing the hierarchical formation of nanospheres via dimers and ribbons.
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Self-assembly of crystalline-coil diblock copolymers in solution: experimental phase map

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06359J, Paper

Adriana M. Mihut, Jerome J. Crassous, Holger Schmalz, Markus Drechsler, Matthias Ballauff
We present the morphological phase map of semicrystalline poly(butadiene)-b-poly(ethylene oxide) (PB-b-PEO) diblock copolymers (BCP) in dilute n-heptane solutions.
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Selection mechanism of polymorphs in the crystal nucleation of the Gaussian core model

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07007C, Paper

John Russo, Hajime Tanaka
We propose a novel mechanism of polymorph selection, and test it with simulations of the Gaussian core model.
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On the theory of the magnetic deformation of ferrogels

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06961J, Paper

Andrey Yu. Zubarev
The type of ferrogel deformation (either elongation or contraction) that occurs under an applied magnetic field is dependent on the concentration of the imbedded particles, strength of the field and initial shape of the sample.
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Short-ranged pair distribution function for concentrated suspensions of soft particles

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06940G, Paper

Lavanya Mohan, Roger T. Bonnecaze
Using a proposed effective potential of the mean force that captures the many body elastic interactions in a concentrated suspension of jammed soft particles, the pair distribution function and elastic properties of these materials are predicted theoretically and validated with computational simulations and experiments.
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Preparation and characterization of pH- and temperature-responsive hydrogels with surface-functionalized graphene oxide as the crosslinker

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07012J, Paper

Zhiqiang Li, Jianfeng Shen, Hongwei Ma, Xin Lu, Min Shi, Na Li, Mingxin Ye
The mechanical properties of PNIPAM/SA/GO hydrogels were highly improved by the use of surface-functionalized graphene oxide as the crosslinker.
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Line tension of branching junctions of bilayer membranes

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06943A, Paper

Hiroshi Noguchi
The branching of bilayer membranes occurs in the inverted hexagonal phase as well as in the metastable states of the lamellar phase as membrane fusion intermediates. A method for estimating the line tension of the branching junction is proposed for molecular simulations.
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Macroscopic expansion of tetraphenylporphyrin Langmuir layers stimulated by protonation

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM00023G, Communication

S. A. Brittle, A. Flores, A. Hobson, A. J. Parnell, A. D. F. Dunbar, C. A. Hunter, T. H. Richardson
Protonation of porphyrins leads to dramatic areal expansion of a Langmuir film.
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Assembly of nano-particles on diblock copolymer brushes: toward laterally nano-structured composites

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07362E, Paper

Olga A. Guskova, Christian Seidel
Tailored nano-particle organisation on diblock copolymer brushes was demonstrated by DPD simulations.
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Microfluidic synthesis of chemically and physically anisotropic hydrogel microfibers for guided cell growth and networking

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07263G, Paper

Masumi Yamada, Sari Sugaya, Yoji Naganuma, Minoru Seki
Solid-soft-solid anisotropic hydrogel microfibers prepared by using microfluidic devices allowed guided cell growth and networking.
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Schematic mode coupling theory of glass rheology: single and double step strains

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06891E, Paper

Th. Voigtmann, J. M. Brader, M. Fuchs, M. E. Cates
Mode coupling theory predicts strongly non-factorable response in colloidal glasses undergoing double step strain.
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Photografted temperature-sensitive poly(N-isopropylacrylamide) thin film with a superfast response rate and an interesting transparent-opaque-transparent change in its deswelling process

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07404D, Paper

Wenwen Xu, Xiunan Yin, Gen He, Jing Zhao, Huiliang Wang
Temperature-sensitive poly(N-isopropylacrylamide) thin film with a superfast response rate is obtained through a photografting method, in addition, an interesting transparent-opaque-transparent change in its deswelling process is found.
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Self-assembly and photo-responsive behavior of novel ABC2-type block copolymers containing azobenzene moieties

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07100B, Paper

Yingying Wang, Shaoliang Lin, Minghui Zang, Yaohui Xing, Xiaohua He, Jiaping Lin, Tao Chen
Large compound vesicles (LCVs) can be formed by ABC₂-type copolymers with azobenzene moieties. The LCVs showed dramatic shape changes upon the irradiation of a polarized light.
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Nano-mechanical properties of clay-armoured emulsion droplets

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07370F, Paper

Sin-Ying Tan, Rico F. Tabor, Lydia Ong, Geoffrey W. Stevens, Raymond R. Dagastine
The mechanical response of clay-armoured emulsion droplets was measured using a combined AFM-confocal microscope with changes in pH, ionic strength and surfactant concentration.
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Atomic force microscopy of arrays of asymmetrical DNA motifs

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07205J, Paper

Thilak Kumara Mudalige, William B. Sherman
DNA arrays with just 8 or 10 strands but low symmetry have sides easily distinguishable by AFM.
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Modeling deformation and contacts of pH sensitive hydrogels for microfluidic flow control

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06749H, Paper

Tao He, Meie Li, Jinxiong Zhou
A jacket valve consisting of three pH sensitive cylindrical hydrogels coated on three fixed pillars and a hybrid hydrogel/PDMS system are modelled and analyzed in this paper.
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Lipid membrane curvature induced by distearoyl phosphatidylinositol 4-phosphate

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07358G, Paper

Samuel Furse, Nicholas J. Brooks, Annela M. Seddon, Rudiger Woscholski, Richard H. Templer, Edward W. Tate, Piers R. J. Gaffney, Oscar Ces
Lamellar DOPC model membranes can be induced to form a 2-d hexagonal phase by doping in 2% DSPIP.
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Screening and designing patchy particles for optimized self-assembly propensity through assembly pathway engineering

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07101K, Paper

Eric Jankowski, Sharon C. Glotzer
Patchy particles are efficiently screened for self-assembly propensity using bottom-up building block assembly.
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Cooperative self-propulsion of active and passive rotors

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06952K, Paper

Yaouen Fily, Aparna Baskaran, M. Cristina Marchetti
Active rotors in a viscous fluid are shown to experience azimuthal fluid mediated interactions. The resulting dynamics of a pair of rotors is studied and compared to that of passive rotors.
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A systematic study of DNA conformation in slitlike confinement

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07322F, Paper

Liang Dai, Jeremy J. Jones, Johan R. C. van der Maarel, Patrick S. Doyle
Various regimes for DNA confined in a slit.
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Reentrant volume phase transition of cross-linked poly(N-isopropylacrylamide) gels in mixed solvents of water/methanol

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06883D, Paper

Hiroyuki Kojima, Fumihiko Tanaka
Competitive adsorption by polymer gels in mixed water/methanol solvents induces co-nonsolvency with a reentrant volume phase transition.
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Shear induced phase inversion of dilute smectic liquid crystal/polymer blends

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06963F, Paper

Qi He, Wei Yu, Youjun Wu, Chixing Zhou
The rheology and morphology of 8CB (4-octyl-4-biphenylcarbonitrile) and PDMS (polydimethylsiloxane) blends with different concentrations of 8CB were investigated.
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High-fidelity fabrication of Au-polymer Janus nanoparticles using a solution template approach

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07002B, Paper

Tingling Rao, Xue-Hui Dong, Byran C. Katzenmeyer, Chrys Wesdemiotis, Stephen Z. D. Cheng, Matthew L. Becker
Our solution template based synthetic methodology yields well-defined gold-micelle Janus nanoparticles in high yields.
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Microfluidic-assisted growth of colloidal crystals

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07149E, Paper

Aurore Merlin, Jean-Baptiste Salmon, Jacques Leng
The concentration process of dilute dispersions of charge-stabilized colloids was investigated using a dedicated microfluidic tool based on evaporation.
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Phase and non-equilibrium behaviour of microgel suspensions as a function of particle stiffness

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06973C, Paper

B. Sierra-Martin, A. Fernandez-Nieves
Deformable and compressive objects such as microgels exhibit a rich suspension phase behavior as a function of the single-particle stiffness.
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[small beta]-Relaxation governs protein stability in sugar-glass matrices

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06979B, Paper

Marcus T. Cicerone, Jack F. Douglas
We show that degradation of proteins encapsulated in sugar-based glasses tracks [small beta] relaxation of the glasses. Our results suggest that previously proposed stabilization mechanisms are not dominant, and that transport may limit the degradation processes.
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Yielding dynamics of a Herschel-Bulkley fluid: a critical-like fluidization behaviour

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06918K, Paper

Thibaut Divoux, David Tamarii, Catherine Barentin, Stephen Teitel, Sebastien Manneville
Long-lived transient shear-banding flows are observed during yielding of carbopol microgels hinting to critical-like dynamics.
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Effect of electric field on Turing patterns in a microemulsion

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07032D, Paper

J. Carballido-Landeira, P. Taboada, A. P. Munuzuri
Turing structures change their dynamics influenced by an external field from an initial stationary state to a time dependent behavior. The experimental results were complemented with numerical simulations of a two variable model that incorporates the migration of the ionic compounds due to the applied electric field.
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Coordination polymer gel derived from a tetrazole ligand and Zn2+: spectroscopic and mechanical properties of an amorphous coordination polymer gel

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07231A, Paper

Hyejin Lee, Sunwoo Kang, Jin Yong Lee, Jong Hwa Jung
Organogelation of the tetrazole-based derivative (1) as end groups, without long alkyl chain groups, results in the formation of a Zn²⁺ coordination polymer. The polymer exhibits a strong fluorescence enhancement upon gel formation.
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Reversible regulation of bioactive ligands presented on immobilized gold nanoparticles

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06567C, Communication

Xintong Wang, Jeremiah J. Riesberg, Wei Shen
The accessibility of a bioactive ligand immobilized in submicron patches through the control of gold nanoparticles is reversibly regulated via co-immobilization and removal of poly(ethylene) glycol through heterodimerization of coiled-coils.
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Toughening fragile matter: mechanical properties of particle solids assembled from polymer-grafted hybrid particles synthesized by ATRP

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06915F, Paper

Jihoon Choi, Chin Ming Hui, Joanna Pietrasik, Hongchen Dong, Krzysztof Matyjaszewski, Michael R. Bockstaller
Polymeric ligands are shown to enhance the toughness of particle array structures. Guidelines for the synthesis of nanoparticles capable of forming ordered yet robust array structures are established.
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Substrate and drying effect in shape and ordering of micelles inside CTAB-silica mesostructured films

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06982B, Paper

P. Chatterjee, S. Hazra, H. Amenitsch
Substrate (hydrophilic-hydrophobic), excess alcohol (silica wall thickness) and time (drying) effects on the formation of perfect or compressed 2D-hexagonal CTAB-silica mesostructured films with circular or elliptical shaped CTAB cylinders.
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Biopolymer folding driven nanoparticle reorganization in bio-nanocomposites

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06666A, Paper

Florent Carn, Francois Boue, Madeleine Djabourov, Nathalie Steunou, Thibaud Coradin, Jacques Livage, Sebastien Floquet, Emmanuel Cadot, Eric Buhler
We show that the biopolymer folding transition modifies the nanoparticle state of dispersion in two kinds of bio-nanocomposite hydrogels.
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Multidrug resistance protein P-glycoprotein does not recognize nanoparticle C60: experiment and modeling

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06811G, Paper

Xue Xu, Ruibin Li, Ming Ma, Xia Wang, Yonghua Wang, Hanfa Zou
In vitro experiments combined with molecular dynamics (MD) simulations were carried out to investigate the interactions of the multidrug resistance (MDR) protein P-gp with fullerene (C₆₀), one of the most important nano-drug carriers.
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Photo-switchable control of pH-responsive actuators via pH jump reaction

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07277G, Paper

Prapatsorn Techawanitchai, Mitsuhiro Ebara, Naokazu Idota, Taka-Aki Asoh, Akihiko Kikuchi, Takao Aoyagi
A reversible self-bending actuator consisting of pH-responsive hydrogels, which can be induced by photo-illumination via pH-jump reaction.
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Selective localization of Alzheimer's amyloid beta in membrane lateral compartments

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07185A, Communication

Masamune Morita, Tsutomu Hamada, Yuiko Tendo, Takahiro Hata, Mun'delanji C. Vestergaard, Masahiro Takagi
Model membrane systems revealed that lateral heterogeneity of the membrane mediates the localization of amyloid beta peptides in a peptide aggregation-dependent manner.
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Dendrimer-mediated drug delivery to the skin

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07280G, Opinion

Mingjing Sun, Aiping Fan, Zheng Wang, Yanjun Zhao
Dendrimers may enhance drug delivery to the skin mainly via three potential mechanisms.
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Spectroscopic study of the microstructure and phase transition of regioregular poly(3-dodecylthiophene)

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07191F, Paper

Yan Guo, Yin Jin, Zhaohui Su
Temperature-dependent spectroscopic analysis of the microstructure and phase transition of P3DDT is presented.
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Non-crystalline colloidal clusters in two dimensions: size distributions and shapes

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06808G, Paper

Erez Janai, Andrew B. Schofield, Eli Sloutskin
The shapes of colloidal clusters in two dimensional fluids and gels are measured and described by a simple theory, employing the concept of lattice animals. The size distribution of these clusters, which is a power law, is totally missed by common theories and simulations.
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Hard X-rays meet soft matter: when bottom-up and top-down get along well

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07028F, Emerging Area

Plinio Innocenzi, Luca Malfatti, Paolo Falcaro
Fundamentals, recent progress and perspectives in the fabrication and patterning of functional nanostructured materials through interaction with high energy X-rays.
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Use of magnetic hydrazide-modified polymer microspheres for enrichment of Francisella tularensis glycoproteins

Soft Matter, 2012, 8,2775-2786
DOI: 10.1039/C2SM07036G, Paper

Daniel Horak, Lucie Balonova, Benjamin F. Mann, Zdenek Plichta, Lenka Hernychova, Milos V. Novotny, Jiri Stulik
Magnetic hydrazide-modified poly(2-hydroxyethyl methacrylate) microspheres were developed and used for enrichment of Francisella tularensis glycoproteins.
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Electrical phenomena in a suspension of soft particles

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07160F, Highlight

Hiroyuki Ohshima
Soft surface and potential distribution.
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Effects of defects on the shear stress relaxation in self-assembled protein networks

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06500B, Paper

Ana West, James T. Kindt
Simulations of reversible junction/linker networks predict strong variation in shear stress relaxation rate with small changes in junction/linker mixing ratio.
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Driven polymer translocation through a cylindrical nanochannel: interplay between the channel length and the chain length

Soft Matter, 2012, 8,2769-2774
DOI: 10.1039/C2SM06942C, Paper

Huaisong Yong, Yilin Wang, Shichen Yuan, Bi Xu, Kaifu Luo
Translocation time as a function of the channel length shows a minimum for different driving forces and channel widths.
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Systematic control of mesh size in hydrogels by initiated chemical vapor deposition

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07137A, Paper

Jose Luis Yague, Karen K. Gleason
We demonstrate the capacity of controlling the mesh size of hydrogels by adjusting the amount of cross-linker to fabricate microtubes for biosensor applications.
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Phase equilibrium and structure formation in gold nanoparticles-nematic liquid crystal composites: experiments and theory

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07091J, Paper

Ezequiel R. Soule, Jonathan Milette, Linda Reven, Alejandro D. Rey
Miscibility and structure formation for dispersions of nanoparticles in nematic liquid crystals are studied, for particles coated with a mixture of short and long ligands.
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DNA encapsulation via nanotemplates from cationic block copolymer micelles

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07029D, Paper

E. Haladjova, S. Rangelov, Ch. B. Tsvetanov, S. Pispas
We report on a method for encapsulation of DNA into polymeric nanocapsules. The encapsulation procedure involves three steps: formation of polyplexes between DNA and cationic polymeric micelles; coating of polyplexes with a cross-linked polymeric shell; dissociation of polyplexes and formation of polymeric nanocapsules with DNA inside.
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Hybrid polymer/lipid vesicles: fine control of the lipid and polymer distribution in the binary membrane

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07188F, Paper

Maud Chemin, Pierre-Marie Brun, Sebastien Lecommandoux, Olivier Sandre, Jean-Francois Le Meins
We present a simple and reliable method to obtain spontaneously, i.e. without the use of any external triggers, hybrid polymer-lipid vesicles with a homogeneous or heterogeneous distribution of the lipid molecules in a copolymer-rich membrane.
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Relaxation dynamics in single polymer microcapsules probed with laser-generated GHz acoustic waves

Soft Matter, 2012, 8,2586-2589
DOI: 10.1039/C2SM07146K, Communication

Thomas Dehoux, Nicolas Tsapis, Bertrand Audoin
Using an ultrafast optical technique we probe coherent phonon propagation inside a single PLGA/PFOB microcapsule. Longitudinal storage and loss moduli are measured simultaneously in the shell and in the core, along with shell thicknesses down to 80 nm.
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Injectable thixotropic hydrogel comprising regenerated silk fibroin and hydroxypropylcellulose

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06984A, Paper

Zuguang Gong, Yuhong Yang, Qingguang Ren, Xin Chen, Zhengzhong Shao
A novel thixotropic injectable hydrogel is developed by blending regenerated silk fibroin (SF) and hydroxypropylcellulose (HPC). The resultant gel is demonstrated to encapsulate cells and to protect the encapsulated cells against high shear force during injection. The possible gelation mechanism is also proposed.
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Assembly of biomacromolecule loaded polyelectrolyte multilayer capsules by using water soluble sacrificial templates

Soft Matter, 2012, 8,2760-2768
DOI: 10.1039/C2SM07096K, Paper

Sebastian Beyer, Jianhao Bai, Anna M. Blocki, Chaitanya Kantak, Qianru Xue, Michael Raghunath, Dieter Trau
Use of water soluble sacrificial templates in Reverse-Phase Layer-by-Layer (RP-LbL) assembly resulted in quantitative encapsulation of biomolecules within hollow capsules and good control over encapsulation concentration.
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Hydrophobic interactions between polymer surfaces: using polystyrene as a model system

Soft Matter, 2012, 8,2746-2759
DOI: 10.1039/C2SM07150A, Paper

Ali Faghihnejad, Hongbo Zeng
Hydrophobic interactions between two polystyrene surfaces were measured using a Surface Forces Apparatus (SFA). The results indicate that dissolved gasses in aqueous solutions play a crucial role in the hydrophobic interactions of polymer surfaces, and support a three-regime hydrophobic interaction model.
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Effect of the solvent quality on the structural rearrangement of spherical brushes: coarse-grained models

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06836B, Paper

Federica Lo Verso, Leonid Yelash, Sergei A. Egorov, Kurt Binder
The conformation of grafted polymers in spherical polymer brushes in poor solvents and theta solvents and in polymer melts is studied theoretically, using molecular dynamics and self-consistent field theory.
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Effect of swelling and deswelling on the elasticity of polymer networks in the dilute to semi-dilute region

Soft Matter, 2012, 8,2730-2736
DOI: 10.1039/C2SM07043J, Paper

Takamasa Sakai, Manami Kurakazu, Yuki Akagi, Mitsuhiro Shibayama, Ung-il Chung
The effect of swelling and deswelling on elasticity of polymer networks is modeled and experimentally confirmed.
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Semidilute solutions of ultra-soft colloids under shear flow

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07009J, Paper

Dmitry A. Fedosov, Sunil P. Singh, Apratim Chatterji, Roland G. Winkler, Gerhard Gompper
Star polymers are a paradigmatic model for ultra-soft colloids with variable softness. Mesoscale hydrodynamics simulations are used to study their structural and rheological behavior in semi-dilute solution under shear flow.
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Thermoresponsive triblock copolymers based on methacrylate monomers: effect of molecular weight and composition

Soft Matter, 2012, 8,2737-2745
DOI: 10.1039/C2SM06743A, Paper

Mark A. Ward, Theoni K. Georgiou
Nine ABC triblock copolymers of different molecular weights and compositions were synthesised using Group Transfer Polymerisation. The aqueous solution properties were characterised as well as the thermoresponsive property of the polymers and their ability to form injectable hydrogels.
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Unravelling the nanometre-scale stimuli-responsive properties of natural rubber latex particles using atomic force microscopy

Soft Matter, 2012, 8,2724-2729
DOI: 10.1039/C2SM06871K, Paper

Fabien Gaboriaud, Benoit de Gaudemaris, Thomas Rousseau, Sylvie Derclaye, Yves F. Dufrene
We report the first nanoscale measurement of the stimuli-responsive behaviour of natural rubber latex particles by atomic force microscopy, revealing that their molecular interactions are tightly controlled by salt conditions.
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Synthetic running and tumbling: an autonomous navigation strategy for catalytic nanoswimmers

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07283A, Paper

Stephen J. Ebbens, Gavin A. Buxton, Alexander Alexeev, Alireza Sadeghi, Jonathan R. Howse
We show how chemotaxis can be realised for nanoswimming devices made from size-changing responsive hydrogels performing synthetic running and tumbling.
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The impact and spreading of a small liquid drop on a non-porous substrate over an extended time scale

Soft Matter, 2012, 8,2686-2696
DOI: 10.1039/C2SM06565G, Paper

Sungjune Jung, Ian M. Hutchings
This paper explores the full range of drop motion for the impact of sub-30 [small mu ]m liquid drops on surfaces with different wettabilities over eight orders of magnitude in time scale.
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Unexpected liquid crystalline behaviour of three-ring bent-core mesogens: bis(4-subst.-phenyl) 2-methyl-iso-phthalates

Soft Matter, 2012, 8,2671-2685
DOI: 10.1039/C2SM07064B, Paper

Wolfgang Weissflog, Ute Baumeister, Maria-Gabriela Tamba, Gerhard Pelzl, Horst Kresse, Rudolf Friedemann, Gunther Hempel, Ricardo Kurz, Matthias Roos, Kurt Merzweiler, Antal Jakli, Cuiyu Zhang, Nicholas Diorio, Ralf Stannarius, Alexey Eremin, Ulrike Kornek
The phase behaviour and the polar structure of mesophases are discussed on the basis of many different physical methods.
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Influence of observation temperature on light scattering of poly-N-isopropylacrylamide hydrogels

Soft Matter, 2012, 8,2705-2713
DOI: 10.1039/C2SM07316A, Paper

Saadet Dogu, Wilhelm Oppermann
In the one-phase region below the LCST, the observation temperature has an even stronger influence on static scattering (due to spatial inhomogeneity) of PNIPA-gels than on thermal scattering (due to Brownian motion).
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Colloids in one dimensional random energy landscapes

Soft Matter, 2012, 8,2714-2723
DOI: 10.1039/C2SM07102A, Paper

Richard D. L. Hanes, Cecile Dalle-Ferrier, Michael Schmiedeberg, Matthew C. Jenkins, Stefan U. Egelhaaf
The creation and characterisation of a rough energy landscape and investigation of its effect on the dynamics of individual colloidal particles.
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Polymer-inorganic hybrid microparticles with hierarchical structures formed by interfacial instabilities of emulsion droplets

Soft Matter, 2012, 8,2697-2704
DOI: 10.1039/C2SM06874E, Paper

Naixiang Wang, Yonggui Liao, Renhua Deng, Shanqin Liu, Nan Cao, Bien Tan, Jintao Zhu, Xiaolin Xie
Polymer-inorganic hybrid microparticles with hierarchically-structured morphologies were generated by interfacial instabilities of emulsion droplets and sol-gel chemistry of silica precursors.
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PEG-urokinase nanogels with enhanced stability and controllable bioactivity

Soft Matter, 2012, 8,2644-2650
DOI: 10.1039/C2SM07072C, Paper

Hui Tan, Haiqiang Jin, Hongcheng Mei, Lijun Zhu, Wei Wei, Qian Wang, Fuxin Liang, Chengliang Zhang, Jiaoli Li, Xiaozhong Qu, Dihua Shangguan, Yining Huang, Zhenzhong Yang
Crosslinked protein conjugates (protein nanogels) exhibit enhanced stability against enzyme degradation and controllable bioactivity according to the molecular weight of the crosslinking polymer.
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Thermoresponsive behavior of an LCST-type polymer based on a pyrrolidone structure in aqueous solution

Soft Matter, 2012, 8,2662-2670
DOI: 10.1039/C2SM06779J, Paper

Hengjie Lai, Guangtao Chen, Peiyi Wu, Zichen Li
C₂PVP is a new type of thermoresponsive polymer which exhibits phase separation in water above LCST.
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Importance of the dynamics of adsorption and of a transient interfacial stress on the formation of aggregates of IgG antibodies

Soft Matter, 2012, 8,2651-2661
DOI: 10.1039/C2SM07017K, Paper

Sergii Rudiuk, Laetitia Cohen-Tannoudji, Sylvain Huille, Christophe Tribet
The protection against stresses of therapeutic antibodies prone to interfacial aggregation is achieved by surfactants decreasing the surface tension at the shortest time scale as possible, which effectively reduces the release in solution of adsorbed aggregates upon mechanical rupture of the interface.
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Versatile light actuated matter manipulation in transparent non-dilute polymer solutions

Soft Matter, 2012, 8,2382-2384
DOI: 10.1039/C2SM07219J, Communication

Manos Anyfantakis, Andreas Koniger, Stergios Pispas, Werner Kohler, Hans-Jurgen Butt, Benoit Loppinet, George Fytas
Polydienes in non-dilute solutions can be effectively attracted or repelled by a visible laser beam, depending on the solvent environment.
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Reverse thermal gelation of aromatic solvents by a series of easily accessible organic salt based gelators

Soft Matter, 2012, 8,2595-2598
DOI: 10.1039/C2SM06957A, Paper

Pathik Sahoo, Indrajit Chakraborty, Parthasarathi Dastidar
Primary ammonium dicarboxylate (PAD) salts of azobenzene-4,4[prime or minute]-dicarboxylic acid and primary alkyl amines are shown to possess reverse-thermal gelation ability of aromatic solvents.
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Thermally responsive rolling of thin gel strips with discrete variations in swelling

Soft Matter, 2012, 8,2375-2381
DOI: 10.1039/C2SM06681E, Communication

Jungwook Kim, James A. Hanna, Ryan C. Hayward, Christian D. Santangelo
Step function metric; no immersion in 3D; rolls up anyway.
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Hyaluronic acid-based hydrogels: from a natural polysaccharide to complex networks

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM06463D, Review

Xian Xu, Amit K. Jha, Daniel A. Harrington, Mary C. Farach-Carson, Xinqiao Jia
This review highlights recent efforts in converting a naturally occurring biomacromolecule to drug releasing hydrogel particles, and finally, complex and instructive macroscopic networks.
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Pathway-dependent re-assembly of dual-responsive ABC terpolymer in water

Soft Matter, 2012, 8,2618-2626
DOI: 10.1039/C2SM07063D, Paper

Chunhui Luo, Yu Liu, Zhibo Li
A dual responsive ABC terpolymer underwent a pathway dependent re-assembly from cylinder to toroid or to vesicle upon programmed variation of solution pH and temperature in dilute aqueous solution.
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Viscoplasticity and stratified flow of colloid suspensions

Soft Matter, 2012, 8,2607-2617
DOI: 10.1039/C2SM06950D, Paper

Alexander Malkin, Sergey Ilyin, Alexander Semakov, Valery Kulichikhin
Rheology, inhomogeneous and unstable flow of colloid suspensions demonstrating all typical features of flowing soft matters.
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Anisotropic liquid penetration arising from a cross-sectional wettability gradient

Soft Matter, 2012, 8,2633-2637
DOI: 10.1039/C2SM07111H, Paper

Xuelin Tian, Juan Li, Xian Wang
We show theoretically that introducing a wettability gradient across a cylinder membrane can give rise to its anisotropic penetration resistance to liquid.
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Electrowetting on curved surfaces

Soft Matter, 2012, 8,2599-2606
DOI: 10.1039/C2SM06878H, Paper

Ying Wang, Ya-Pu Zhao
EWOD (electrowetting-on-dielectric) on curved (including convex and concave) surfaces is explored. The variation of the contact angle is surface curvature dependent and an extended electrowetting equation is obtained.
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Slow and remanent electric polarization of adsorbed BSA layer evidenced by neutron reflection

Soft Matter, 2012, 8,2638-2643
DOI: 10.1039/C2SM07265C, Paper

Alexandros Koutsioubas, Didier Lairez, Gilbert Zalczer, Fabrice Cousin
The effects of transverse electric field on a bovine serum albumin monolayer adsorbed at the interface of an aqueous solution and a conductive doped-silicon wafer was studied.
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Flexoelectric effect of a rod-like nematic liquid crystal doped with highly-kinked bent-core molecules for energy converting components

Soft Matter, 2012, 8,2370-2374
DOI: 10.1039/C2SM07270J, Communication

Ji-Hoon Lee, Tae-Hoon Yoon, E-Joon Choi
Greater field-induced twist angle of 5CB doped with a bent-core liquid crystal B81 by the enhanced flexoelectric effect.
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pH-responsive dendrimers interacting with lipid membranes

Soft Matter, 2012, 8,2627-2632
DOI: 10.1039/C2SM06624F, Paper

Wen-de Tian, Yu-qiang Ma
Simulations were performed to study the dendrimer-membrane interactions in the context of gene delivery systems by exploring the influence of various pH values.
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Modified double emulsion process as a new route to prepare submicron biodegradable magnetic/polycaprolactone particles for in vivo theranostics

Soft Matter, 2012, 8,2554-2564
DOI: 10.1039/C2SM06872A, Paper

Naveed Ahmed, Millan Michelin-Jamois, Hatem Fessi, Abdelhamid Elaissari
A modified double emulsion evaporation method to encapsulate iron oxide content within polycaprolactone aiming to prepare biodegradable magnetic nanoparticles for in vivo theranostics has been reported.
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Magnetic orientation of soft particles in a jammed solid

Soft Matter, 2012, Advance Article
DOI: 10.1039/C2SM07076F, Paper

Camille Dagallier, Frederic Cardinaux, Herve Dietsch, Frank Scheffold
We probe directly trapping forces of deeply jammed colloidal particles in the bulk using a combination of optical birefringence measurements and magnetic field alignment.
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Metastability in a bi-component hydrogel of thymine and 6-methyl-1,3,5-triazine-2,4-diamine: ultrasound induced vs. thermo gelation

Soft Matter, 2012, 8,2366-2369
DOI: 10.1039/C2SM07225D, Communication

Bappaditya Roy, Partha Bairi, Arun K. Nandi
A bi-component hydrogel shows different stability; the ultrasound-induced gels breaks more quickly than the thermo gels and Ostwald ripening is the probable cause of the metastability.
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