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Magnetic properties of core–shell (1/2–3/2) nanoparticle: Monte Carlo simulation

Dakir, O.; El Kenz, A.; Benyoussef, A. - In: Physica A: Statistical Mechanics and its Applications 426 (2015) C, pp. 45-55

In this work, a Monte Carlo simulation, based on standard Metropolis algorithm, has been applied to investigate magnetic properties of a ferrimagnetic nanoparticle, with a cubic shape and core–shell structure. The nanoparticle is constituted of spin-1/2 in the core surrounded by spin-3/2 in...

Persistent link: https://www.econbiz.de/10011209680

Adsorption of a spherical nanoparticle in polymer brushes: Brownian dynamics investigation

Zhang, Qiyi; Xiang, Xun - In: Physica A: Statistical Mechanics and its Applications 392 (2013) 18, pp. 3857-3862

We use Brownian dynamics simulations to study the adsorption behavior of a nanosized particle in polymer brushes. The adsorption process, the dynamic behavior of the nanoparticle in the brush, the penetration depth, the diffusion coefficient of the nanoparticle in different depths of the brush,...

Persistent link: https://www.econbiz.de/10010679207

Simulation study on microstructure formations in magnetic fluids

Enomoto, Yoshihisa; Oba, Katsumi; Okada, Masafumi - In: Physica A: Statistical Mechanics and its Applications 330 (2003) 3, pp. 496-506

ensemble of interacting ferromagnetic nanoparticles suspended in a viscous fluid. The present model is described in terms of … position vectors of nanoparticles and orientation vectors of their magnetic dipole moments. In this model, forces and torques …

Persistent link: https://www.econbiz.de/10010588411

Effects of oscillatory shear flow on chain-like cluster dynamics in ferrofluids without magnetic fields

Yamada, Y.; Enomoto, Y. - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 1, pp. 1-11

Brownian dynamics simulations of interacting magnetic particles in a quasi-two-dimensional ferrofluid system are performed at zero temperature, under the influence of oscillatory shear flow in the absence of external magnetic fields. Starting from chain-like clusters of the particles, we study...

Persistent link: https://www.econbiz.de/10010588862

Remarks on the depletion interaction between nanoparticles and flexible polymers

Odijk, T - In: Physica A: Statistical Mechanics and its Applications 278 (2000) 3, pp. 347-355

The depletion interaction between nanoparticles and flexible polymers is discussed when the suspensions are nondilute …

Persistent link: https://www.econbiz.de/10010591301

Synthesis and characterization of surfactant and silica-coated cobalt ferrite nanoparticles

Bonini, Massimo; Wiedenmann, Albrecht; Baglioni, Piero - In: Physica A: Statistical Mechanics and its Applications 339 (2004) 1, pp. 86-91

-ferrite nanoparticles obtained from two different synthetic pathways: microemulsions and supersaturated solutions. Microemulsion technology … leads to the formation of surfactant-coated magnetic nanoparticles, while dispersions of nanoparticles stabilized by their … silica on top of these nanoparticles is also reported. Surfactant coated nanoparticles have been characterized by means of UV …

Persistent link: https://www.econbiz.de/10010591434

Estimation of zeta potentials of titania nanoparticles by molecular simulation

English, Niall J.; Long, William F. - In: Physica A: Statistical Mechanics and its Applications 388 (2009) 19, pp. 4091-4096

positively charged spherical rutile–titania nanoparticles with radii of 1.5 to 2.9 nm for two different salt concentrations in … the non-linear Poisson–Boltzmann (PB) equation for representative configurations of the nanoparticles, in addition to …-HS results some 15%–15% smaller than the numerical PB results for more highly charged nanoparticles. …

Persistent link: https://www.econbiz.de/10011057156

Monte Carlo simulation of the compensation and critical behaviors of a ferrimagnetic core/shell nanoparticle Ising model

Zaim, Ahmed; Kerouad, Mohamed - In: Physica A: Statistical Mechanics and its Applications 389 (2010) 17, pp. 3435-3442

A Monte Carlo simulation has been used to study the magnetic properties and the critical behaviors of a single spherical nanoparticle, consisting of a ferromagnetic core of σ=±12 spins surrounded by a ferromagnetic shell of S=±1, 0 or S=±12, ±32 spins with antiferromagnetic interface...

Persistent link: https://www.econbiz.de/10011061451

Are there generic mechanisms governing interactions between nanoparticles and cells? Epitope mapping the outer layer of the protein–material interface

Lynch, Iseult - In: Physica A: Statistical Mechanics and its Applications 373 (2007) C, pp. 511-520

In this paper we discuss the possibility of a general paradigm for cell–biomaterial and cell–nanoparticle interactions. The basis of the paradigm is that the nature of the biomaterial or nanoparticle surface is not the important parameter, but rather the nature of the outermost layer of...

Persistent link: https://www.econbiz.de/10011063111