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Gold nanoparticles (AuNPs) play an important role in fundamental research and development due to their versatile applications and biocompatibility. This study addresses the aging of three AuNP suspensions after the addition of various…

软凝聚态物质 · 物理学 2025-02-04 Philipp Ritzert , Alexandra Striegel , Regine von Klitzing

The universality class of the avalanche behavior in plastically deforming crystalline and amorphous systems has been commonly discussed, despite the fact that the microscopic defect character in each of these systems is different. In…

材料科学 · 物理学 2019-05-08 Hengxu Song , Dennis Dimiduk , Stefanos Papanikolaou

Starting from a fine-scale dissipative particle dynamics (DPD) model of self-motile point particles, we derive meso-scale continuum equations by applying a spatial averaging version of the Irving--Kirkwood--Noll procedure. Since the method…

适应与自组织系统 · 物理学 2018-03-07 Alexander Panchenko , Denis F. Hinz , Eliot Fried

Dynamics of active or self-propulsive Brownian particles in nonequilibrium status, has recently attracted great interest in many fields including biological entities and artificial micro/nanoscopic motors6. Understanding of their dynamics…

软凝聚态物质 · 物理学 2017-01-18 Xuewen Fu , Bin Chen , Jau Tang , Ahmed H. Zewail

This article presents a numerical simulation of solvent diffusion in transition metal dichalcogenide based nanomaterials during solvothermal reaction, leading to layer exfoliation and, consequently, a reduction in the average nanoparticle…

材料科学 · 物理学 2026-04-14 Geetika Sahu

Recently it has been shown that when an equation that allows so-called pulled fronts in the mean-field limit is modelled with a stochastic model with a finite number $N$ of particles per correlation volume, the convergence to the speed…

统计力学 · 物理学 2009-11-07 Debabrata Panja

Recently it has been shown that when an equation that allows so-called pulled fronts in the mean-field limit is modelled with a stochastic model with a finite number $N$ of particles per correlation volume, the convergence to the speed…

统计力学 · 物理学 2009-11-07 Debabrata Panja , Wim van Saarloos

Using molecular dynamics simulations we study the static and dynamic properties of spherical nanoparticles (NPs) embedded in a disordered and polydisperse polymer network. Purely repulsive (RNP) as well as weakly attractive (ANP) polymer-NP…

软凝聚态物质 · 物理学 2023-02-15 Valerio Sorichetti , Virginie Hugouvieux , Walter Kob

Non-spherical particles transported by an anisotropic turbulent flow preferentially align with the mean shear and intermittently tumble when the local strain fluctuates. Such an intricate behaviour is here studied for inertialess,…

软凝聚态物质 · 物理学 2022-12-27 Lorenzo Campana , Mireille Bossy , Jeremie Bec

The formation mechanisms of evaporated Pd islands on the reconstructed Au(111) $22 /times /sqrt{3}$ herringbone surface have been here studied by Scanning Tunneling Microscopy (STM) at room temperature. Atomically resolved STM images at the…

材料科学 · 物理学 2009-09-22 C. S. Casari , S. Foglio , F. Siviero , A. Li Bassi , M. Passoni , C. E. Bottani

Supersaturation is the fundamental parameter driving crystal formation, yet its dynamics during the growth of colloidal nanocrystals (NCs) are poorly understood. Experimental characterization of supersaturation in colloidal syntheses has…

材料科学 · 物理学 2021-09-14 Paul Z. Chen , Aaron J. Clasky , Frank X. Gu

We generalize to stochastic dynamics the exact expression for average dissipation along an arbitrary non-equilibrium process, given in Phys. Rev. Lett. 98, 080602 (2007). We then derive lower bounds by various coarse-graining procedures and…

统计力学 · 物理学 2007-10-24 A. Gomez-Marin , J. M. R. Parrondo , C. Van den Broeck

The dependency of the melting point of supported metal nanoclusters as function of clusters height is theoretically investigated in the framework of the uniform approach. The vacancy mechanism describing the melting point shift in…

介观与纳米尺度物理 · 物理学 2010-07-06 V. D. Borman , P. V. Borisyuk , M. A. Pushkin , I. V. Tronin , V. N. Tronin , V. I. Troyan , O. S. Vasiliev , M. V. Vitovskaya

The development of simple, versatile strategies for the synthesis of gold nanoparticles (AuNPs) on semiconducting transition metal dichalcogenides (TMDC) layers is of increasing scientific and technological interest in photocatalysis,…

Supported lipid bilayers have been studied intensively over the past two decades. In this work, we study the diffusion of single gold nanoparticles (GNPs) with diameter of 20 nm attached to GM1 ganglioside or DOPE lipids at different…

生物物理 · 物理学 2014-02-10 Chia-Lung Hsieh , Susann Spindler , Jens Ehrig , Vahid Sandoghdar

The wear-driven structural evolution of nanocrystalline Cu was simulated with molecular dynamics under constant normal loads, followed by a quantitative analysis. While the microstructure far away from the sliding contact remains unchanged,…

材料科学 · 物理学 2017-09-06 Zhiliang Pan , Timothy J. Rupert

We derive the stochastic model of plasma-condensate systems by taking into account anisotropy in transference of adatoms between neighbor layers and by introducing fluctuations of adsorbate flux. We show, that by varying the fluctuation's…

介观与纳米尺度物理 · 物理学 2019-03-27 Vasyl O. Kharchenko , Alina V. Dvornichenko

It has been experimentally established in numerous cases that precipitation of monodispersed colloids from homogeneous solutions is a complex process. Specifically, it was found that in many systems nuclei, produced rapidly in a…

材料科学 · 物理学 2010-09-22 Vladimir Privman , Dan V. Goia , Jongsoon Park , Egon Matijevic

Atomic structures of nanomaterials are inherently dynamic, continuously reshaped through interactions with chemical species and external stimuli. Such dynamics are further amplified as the size and dimensionality of nanomaterials are…

Au nanoparticles, prepared by thermal evaporation under high vacuum condition on Si substrate, are irradiated with Au ions at different ion energies. During ion irradiation, embedding of nanoparticles as well as ejection of nano-clusters is…

材料科学 · 物理学 2007-05-23 B. Satpati , J. Ghatak , B. Joseph , P. V. Satyam , T. Som , D. Kabiraj , B. N. Dev