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We are presenting a new method of processing polystyrene-silica nanocomposites, which results in a very well-defined dispersion of small primary aggregates (assembly of 15 nanoparticles of 10 nm diameter) in the matrix. The process is based…

Materials Science · Physics 2009-04-02 Nicolas Jouault , Perrine Vallat , Florent Dalmas , Sylvère Said , Jacques Jestin , François Boué

We present a minimal model for simulating dynamics of assorted lipid assemblies in a computationally efficient manner. Our model is particle-based and consists of coarse-grained beads put together on a modular platform to give generic…

Chemical Physics · Physics 2019-10-15 John M. A. Grime , Jesper J. Madsen

The contact mechanics of individual, very small particles with other particles and walls is studied using a nanoindenter setup that allows normal and lateral displacement control and measurement of the respective forces. The sliding,…

Materials Science · Physics 2014-01-14 Regina Fuchs , Thomas Weinhart , Jan Meyer , Thorsten Staedler , Xin Jiang , Stefan Luding

Catalyst impregnation is one of the most crucial steps for preparing industrial catalysts. The inter-particle variability of the impregnated liquid inside the particles significantly affects the activity and selectivity of the catalyst.…

Fluid Dynamics · Physics 2023-07-28 Maria Silvina Tomassone , Yangyang Shen , Bill Borghard , Bryant Avila , Hernan Makse

Microorganisms are able to overcome the thermal randomness of their surroundings by harvesting energy to navigate in viscous fluid environments. In a similar manner, synthetic colloidal microswimmers are capable of mimicking complex…

In this work we show that macroscopic experiments can be used to investigate microscopic systems. Such macroscopic experiments enable testing the assumptions and results obtained by theoretical considerations or simulations that can not be…

Manganese-doped zinc sulfide nanocrystalline thin films were synthesized using a low-temperature chemical bath deposition and deposited on glass substrates for controlled durations using triethanolamine (TEA) as a complexing and capping…

Materials Science · Physics 2025-11-25 Himal Pokhrel , Urvashi Verma

The thermal transport properties of porous silicon and nano-hybrid "porous silicon/water" systems are presented here. The thermal conductivity was evaluated with equilibrium molecular dynamics technique for porous systems made of spherical…

Mesoscale and Nanoscale Physics · Physics 2020-12-03 Mykola Isaiev , Xiaorui Wang , Konstantinos Termentzidis , David Lacroix

The incorporation of nanosilica in cementitious systems helps in accelerating the cement hydration process and early-stage formation of the main hydration product, that is, calcium silicate hydrate. Nanosilica reacts with the other key…

Applied Physics · Physics 2021-06-01 Shaumik Ray , Jyotirmayee Dash , Nirmala Devi , Saptarshi Sasmal , Bala Pesala

Supported Lipid Bilayers (SLBs) are model membranes formed at solid substrate surfaces. This architecture renders the membrane experimentally accessible to surface sensitive techniques used to study their properties, including Atomic Force…

Biological Physics · Physics 2019-11-19 James A. Goodchild , Danielle L. Walsh , Simon D. Connell

Synthesis and structural characterization of Pb nanoparticles by electrolysis using a bioactive compound - konjac aqueous extract is the main aim of this study. This method is a unique, novel, low cost and double-step procedure with good…

Chemical Physics · Physics 2012-12-27 T. Theivasanthi , M. Alagar

We present results of computational modeling of the formation of uniform spherical silver particles prepared by rapid mixing of ascorbic acid and silver-amine complex solutions in the absence of a dispersing agent. Using an accelerated…

Soft Condensed Matter · Physics 2010-10-12 Daniel T. Robb , Ionel Halaciuga , Vladimir Privman , Dan V. Goia

Thin colloidal crystals (or synthetic opals) composed of Stober silica spheres typically develop cracks when they are utilized to obtain photonic band gap crystals (or inverted opals). We find that by sintering the silica spheres prior to…

Materials Science · Physics 2009-11-10 A. A. Chabanov , Y. Jun , D. J. Norris

Research over the years has shown that the formation of the Fe$_3$Si phase in FINEMET (Fe-Si-Nb-B-Cu) alloys leads to superior soft magnetic properties. In this work, we use a CALPHAD approach to derive Fe-Si phase diagrams to identify the…

Materials Science · Physics 2018-02-20 Rajesh Jha , David R. Diercks , Aaron P. Stebner , Cristian V. Ciobanu

The sol-gel technique was developed for preparation of silica glasses doped with europium and copper chalcogenide nanoparticles. A synthesis of copper compounds proceeded within the solid matrix at the different steps of the process, and…

Mesoscale and Nanoscale Physics · Physics 2023-06-21 Valerij Gurin , Alexander Alexeenko

A new methodology for micromagnetic simulations of magnetic nanocomposites is presented. The methodology is especially suitable for simulations of two-phase composites consisting of magnetically hard inclusions in a soft magnetic matrix…

Mesoscale and Nanoscale Physics · Physics 2011-09-20 Sergey Erokhin , Dmitry Berkov , Nataliya Gorn , Andreas Michels

Compact layers containing embedded semiconductor particles consolidated using pulsed electric current sintering exhibit intense, broadband near-infrared reflectance. The composites consolidated from nano- or micro-silica powder have a…

Magnetic remote actuation of soft materials is attractive for applications such as transforming materials and medical robots. However, due to manufacturing limitations, microscale magnetoactive devices are scarce -- light-based additive…

Soft Condensed Matter · Physics 2026-05-13 Rachel M. Sun , Andrew Y. Chen , Yiming Ji , Eric M. Stewart , Daryl W. Yee , Carlos M. Portela

The kinetics of phase transition processes often governs the resulting material microstruc-ture. Using optical microscopy, we here investigate the formation and stabilization of a po-rous crystalline microstructure forming in low-salt…

Soft Condensed Matter · Physics 2023-06-23 Nina Lorenz , Christopher Wittenberg , Thomas Palberg

We use liquid phase exfoliation to produce dispersions of molybdenum disulphide (MoS2) nanoflakes in aqueous surfactant solutions. The chemical structures of the bile salt surfactants play a crucial role in the exfoliation and stabilization…