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The on-going COVID-19 pandemic highlights the severe health risks posed by deep submicron sized airborne viruses and particulates in the spread of infectious diseases. There is an urgent need for the development of efficient, durable and…

Materials Science · Physics 2021-04-15 James Malloy , Alberto Quintana , Christopher J. Jensen , Kai Liu

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

This work reports on the synthesis and characterization of a new type of electrospun magnetic nanofibers (MNFs), and their application for degradation of organic pollutants using remote magnetic inductive heating. We describe a simple…

We report the successful synthesis of nanotubules of thermoelectric materials gamma-NaxCoO2 using two different sol-gel routes aided by porous anodized aluminium oxide (AAO) membrane as supporting templates. The gamma-NaxCoO2 nanotubule…

Materials Science · Physics 2009-01-26 Chia-Jyi Liu , Shu-Yo Chen , Long-Jiann Shih

Nano oils comprising Graphene nanoflakes and CNTs have been experimentally observed for the first time to exhibit augmented dielectric breakdown strengths compared to the base transformer oils. Variant nano oils comprising different Gr and…

Mesoscale and Nanoscale Physics · Physics 2016-11-17 Purbarun Dhar , Ajay Katiyar , Lakshmi Sirisha Maganti , Arvind Pattamatta , Sarit K Das

A uniformly coated MoS2/Carbon-nanocomposite with three-dimensional hierarchical architecture based on carbonized bacterial cellulose (CBC) nanofibers is synthesized by a facile one-step hydrothermal method followed by thermal annealing at…

Based on density functional theory calculations, we here show that the formation of a fullerene C$_{60}$ carbon "nanobud" (CNB) on carbon nanotube (CNT) caps is energetically more favorable than that on CNT sidewalls. The dominant CNB…

Mesoscale and Nanoscale Physics · Physics 2016-02-17 Ji Il Choi , Hyo Seok Kim , Han Seul Kim , Ga In Lee , Jeung Ku Kang , Yong-Hoon Kim

The allotropes of a new layered material, phosphorus carbide (PC), have been predicted recently and a few of these predicted structures have already been successfully fabricated. Herein, by using first-principles calculations we…

Black phosphorus is a material with an intrinsic anisotropy in electronic and optical properties due to its puckered honeycomb lattice. Optical absorption is different for incident light with linear polarization in the armchair and zigzag…

Mesoscale and Nanoscale Physics · Physics 2022-04-20 Leandro Seixas

In this work we study the reinforcement of polymers by mechanically interlocked derivatives of single-walled carbon nanotubes (SWNTs). We compare the mechanical properties of fibers made of polymers and of composites with pristine…

We report a density-functional-theoretic study of the stability and electronic structure of two recently proposed borophene sheets with Pmmn symmetry and nonzero thickness. We then investigate nanoribbons (BNRs) derived from these…

Mesoscale and Nanoscale Physics · Physics 2017-02-06 A García-Fuente , J Carrete , A Vega , L J Gallego

Nanofluidics is pivotal in fundamental research and diverse applications, from water desalination to energy harvesting and biological analysis. Dynamically manipulating nanofluidic properties, such as diffusion and friction, presents an…

Chemical Physics · Physics 2023-12-13 Chenxing Liang , Narayana R Aluru

Compressibility of high-purity nanostructured cBN has been studied under quasi-hydrostatic conditions at 300 K up to 35 GPa using diamond anvil cell and angle-dispersive synchrotron X-ray powder diffraction. A data fit to the Vinet equation…

Materials Science · Physics 2012-10-12 Y. Le Godec , O. O. Kurakevych , P. Munsch , G. Garbarino , M. Mezouar , V. L. Solozhenko

Polymeric single-chain nanoparticles (SCNPs) are soft nano-objects synthesized by purely intramolecular cross-linking of single polymer chains. By means of computer simulations, we investigate the conformational properties of SCNPs as a…

Soft Condensed Matter · Physics 2018-01-17 Angel J. Moreno , Petra Bacova , Federica Lo Verso , Arantxa Arbe , Juan Colmenero , Jose A. Pomposo

The structure of polymers at solid interfaces evolves over time, but the corresponding changes in their rheological properties remain poorly understood. Here, using a home-built quartz tuning fork atomic force microscope-based…

Fluid Dynamics · Physics 2025-08-22 Jaewon Shim , Manhee Lee , Wonho Jhe

We study the influence of spherical, triangular, and rod-like nanoparticles on the mechanical properties of a polymer nanocomposite (PNC), via coarse-grained molecular dynamics simulations. We focus on how the nanoparticle size, loading,…

Soft Condensed Matter · Physics 2012-12-19 Aki Kutvonen , Giulia Rossi , Sakari R. Puisto , Niko K. J. Rostedt , Tapio Ala-Nissila

We explore the possibility of using van dar Waals bonded heterostructures of stacked together 2D bilayer black phosphorus (BP) for nanoscale device applications. The electronic property of BP in AA stacking and 90{\deg} twisted is studied…

Applied Physics · Physics 2018-11-09 Vivekanand Shukla , Anton Grigoriev , Rajeev Ahuja

A unique set of characteristics are packed in emerging nonvolatile reduction-oxidation (redox)-based resistive switching memories (ReRAMs) such as their underlying stochastic switching processes alongside their intrinsic highly nonlinear…

Emerging Technologies · Computer Science 2016-11-16 Jeeson Kim , Taimur Ahmed , Hussein Nili , Jiawei Yang , Doo Seok Jeong , Paul Beckett , Sharath Sriram , Damith C. Ranasinghe , Omid Kavehei

A composite porous polymer membrane with aligned CNTs in its matrix is developed which exhibits programmable, anisotropic actuation towards organic vapors. The alignment of CNTs in multiple directions and the gradient porous structure of…

Soft Condensed Matter · Physics 2016-09-22 Huijuan Lin , Jiang Gong , Michaela Eder , Roman Schuetz , Huisheng Peng , John W. C. Dunlop , Jiayin Yuan

We optimized designs of permanent magnet systems to study the effect of magnetic nanoparticles on cell cultures in microslide channels. This produced two designs, one of which is based on a large cylindrical magnet that applies a uniform…

Biological Physics · Physics 2024-01-04 Leon Abelmann , Eunheui Gwag , Baeckkyoung Sung