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The study of competitive and cooperative adsorption of functionalized molecules such as polymers, rheology modifiers and surfactant molecules on colloidal particles immersed in a solvent is undertaken using coarse grained, dissipative…

Soft Condensed Matter · Physics 2014-06-13 A. Gama Goicochea

Aggregation behavior of particles in nonpolar medium is studied with time-resolved light scattering. At low concentrations of surfactant particles are weakly charged and suspensions are not stable. Suspensions get progressively more stable…

The compound SmB$_6$ is the best established realization of a topological Kondo insulator, in which a topological insulator state is obtained through Kondo coherence. Recent studies have found evidence that the surface of SmB$_6$ hosts…

We introduced silica nanoparticles into poly ($N$,$N$-dimethylacrylamide) gel, (PDAM-NC gel), and poly (acrylamide) gel (PAM-NC gel), and carried out SAXS measurements under uniaxial elongation. It is well known that PDAM chains are…

Soft Condensed Matter · Physics 2016-01-05 Kengo Nishi , Mitsuhiro Shibayama

Colloidal building blocks with re-configurable shapes and dynamic interactions can exhibit unusual self-assembly behaviors and pathways. In this work, we consider the phase behavior of colloids coated with surface-mobile polymer brushes…

Soft Condensed Matter · Physics 2024-05-16 Yaxin Xu , Prabhat Jandhyala , Sho C. Takatori

Molecular materials enable a vast variety of functionalities for novel electronic and spintronic devices. The unique possibility to alter or substitute organic molecules or metallic substrates offers the opportunity to modify and optimize…

Mesoscale and Nanoscale Physics · Physics 2020-09-02 Johannes Seidel , Leah L. Kelly , Markus Franke , Christian Kumpf , Mirko Cinchetti , Martin Aeschlimann , Benjamin Stadtmüller

An accurate knowledge of the lattice parameters of the new nitride Sc$_\textit{x}$Al$_\textit{1-x}$N is essential for understanding the elastic and piezoelectric properties of this compound as well as for the ability to engineer its strain…

Materials Science · Physics 2023-11-27 Duc V. Dinh , Jonas Lähnemann , Lutz Geelhaar , Oliver Brandt

We propose and study a simplified model for the surface and bulk structures of crosslinked polymer gels, into which voids are introduced through templating by surfactant micelles. Such systems were recently studied by Atomic Force…

Soft Condensed Matter · Physics 2009-11-07 G. M. Buendia , S. J. Mitchell , P. A. Rikvold

We aim to study the main properties of a volume-limited unbiased sample of well-characterized semi-regular variables (SRs) in order to clarify important issues, such as the formation of axially symmetric planetary nebulae (PNe) from…

Solar and Stellar Astrophysics · Physics 2019-09-11 J. J. Díaz-Luis , J. Alcolea , V. Bujarrabal , M. Santander-García , A. Castro-Carrizo , M. Gómez-Garrido , J. -F. Desmurs

It is shown that porous spherical particles can be obtained via the freezing of silica nanoparticle aqueous suspensions emulsified in a continuous oil phase. After two freeze-thaw cycles, nanoparticles turn aggregated into flocculated…

Soft Condensed Matter · Physics 2020-05-26 Mathieu Nespoulous , Mickaël Antoni , Carine Chassigneux , Renaud Denoyel

Topological insulators are a class of materials with insulating bulk but protected conducting surfaces due to the combination of spin-orbit interactions and time-reversal symmetry. The surface states are topologically non-trivial and robust…

Cyclodextrins (CD) are a family of oligosaccharides with a toroid shape, which exhibit a remarkable ability to include guest molecules in their internal cavity providing a hydrophobic environment for poorly soluble molecules. Recently new…

Soft Condensed Matter · Physics 2018-10-02 Florent Carn , Sophie Nowak , Ismail Chaab , Raul Diaz-Salmeron , Madeleine Djabourov , Kawthar Bouchemal

Two dimensional transition metal dichalcogenides appear as good candidates for gas sensing and catalysis. Here, by means of density functional theory, we characterize the adsorption and dissociation of selected diatomic molecules (CO,…

Materials Science · Physics 2022-01-06 Raúl Bombín , Maite Alducin , Iñaki Juaristi

Particles with directional interactions are promising building blocks for new functional materials and may serve as models for biological structures. Mutually attractive nanoparticles that are deformable due to flexible surface groups, for…

Soft Condensed Matter · Physics 2016-07-19 Chris H. J. Evers , Jurriaan A. Luiken , Peter G. Bolhuis , Willem K. Kegel

Certain trisiloxane surfactants have the remarkable property of being able to superspread: Small volumes of water rapidly wet large areas of hydrophobic surfaces. The molecular properties of the surfactants which govern this technologically…

We have studied the structure of inert layer 4He adsorbed on mesoporous silica (FSM-16), by the vapor pressure and heat capacity measurements. The heat capacity shows a Schottky-like peak due to the excitation of a part of localized solid…

Other Condensed Matter · Physics 2019-07-10 Junko Taniguchi , Kizashi Mikami , Masaru Suzuki

A quantitative understanding of aggregation mechanisms leading to the formation of inorganic nanoparticles (NPs) and protein composites in aqueous media is of paramount interest for colloid chemistry. In particular, the interactions between…

Nanostructured electronic devices, such as those based on graphene, are typically grown on top of the insulator SiO2. Their exposure to a flux of small size-selected silver nanoparticles has revealed remarkably selective adhesion: the…

Atomic and Molecular Clusters · Physics 2023-07-14 Patrick J. Edwards , Sean Stuart , James T. Farmer , Ran Shi , Run Long , Oleg V. Prezhdo , Vitaly V. Kresin

I used x-ray grazing incidence diffraction to measure the spatial correlations between sodium ions adsorbed with Bjerrum's density at the surface of a monodispersed 22-nm-particle colloidal silica solution stabilized by NaOH with a total…

Soft Condensed Matter · Physics 2007-05-23 Aleksey M. Tikhonov

Pseudo-binary mixtures of different glycolipids, four different rhamnolipids (RL) and an alkyl polyglucoside (APG), with poly(diallyl-dimethylammonium chloride) (PDADMAC) have been studied in relation to their adsorption onto negatively…