TITLE

Ratchet-induced anisotropic behavior of superparamagnetic microdroplet

AUTHOR(S)
Zhang, Jihua; Cheng, Zhongjun; Zheng, Yongmei; Jiang, Lei
PUB. DATE
April 2009
SOURCE
Applied Physics Letters;4/6/2009, Vol. 94 Issue 14, p144104
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Microscale ratchet structured surfaces were coated with nanoparticles, which resulted in anisotropic behavior of superparamagnetic microdroplet by magnetic field actuation. This ratchet structure enables superparamagnetic microdroplets to generate the anisotropic behavior through the alternative external magnetic field. A tuning behavior was revealed by changing the height of ratchet, the numbers of superparamagnetic nanoparticles, and the size of microdroplets. It is significant to understand the wetting properties on superhydrophobic surfaces with anisotropic structure.
ACCESSION #
37580318

 

Related Articles

  • High Throughput Bioassays Using Nanoparticles. Gómez-Hens, Agustina; Fernández-Romero, Juan M.; Aguilar-Caballos, Maria P. // Combinatorial Chemistry & High Throughput Screening;May2010, Vol. 13 Issue 4, p309 

    An overview of the usefulness of different nanoparticles to improve the features of high throughput separation and individual and multiplexed detection bioassays is presented. Although the development of microarray and microfluidic systems has expanded the capabilities of these high throughput...

  • Dynamic magnetization of γ- ... nanoparticles isolated in an ... amorphous matrix. Caizer, C.; Hrianca, I. // European Physical Journal B -- Condensed Matter;Feb2003, Vol. 31 Issue 3, p391 

    Presents a study on the magnetization of a system of ϒ-Fe2O3 nanoparticles isolated in an SiO2 amorphous matrix placed in an alternating magnetic field. Increase in the delay of magnetization; Relaxation time resulting from the Néel theory; Influence of surface and strain anisotropy...

  • Growth of Cobalt Nanowires under External Magnetic Field. BALELA, MARY DONNABELLE L.; YAGI, SHUNSUKE; MATSUBARA, EIICHIRO // Advanced Materials Research;2014, Issue 911, p136 

    Metallic cobalt (Co) nanowires with a mean diameter of about 240 nm and lengths up to 30 µm are grown in solution by electroless deposition under external magnetic. Without magnetic field, only quasi-spherical Co nanoparticles are formed. In the presence of the magnetic field, strong...

  • Low frequency hysteresis loops of superparamagnetic nanoparticles with uniaxial anisotropy. Usov, N. A. // Journal of Applied Physics;Jul2010, Vol. 107 Issue 12, p123909 

    The low frequency hysteresis loops of superparamagnetic nanoparticles with uniaxial anisotropy are calculated as a function of the particle diameter, alternating magnetic field amplitude H0, frequency, and particle magnetic parameters both for oriented and nonoriented assemblies. The magnetic...

  • A NEW APPROACH FOR CALCULATION OF RELAXATION TIME AND MAGNETIC ANISOTROPY OF FERROFLUIDS CONTAINING SUPERPARMAGNETIC NANOPARTICLES. Ahmadi, R.; Hosseini, H. R. Madaah // Journal of Mining & Metallurgy. Section B: Metallurgy;2012, Vol. 48 Issue 1, p81 

    In this work, a new approach is described for the calculation of the relaxation time and magnetic anisotropy energy of magnetic nanoparticles. Ferrofluids containing monodispersed magnetite nanoparticles were synthesized via hydrothermal method and then heated using the 10 kA/m external AC...

  • Anisotropy adjustment and thickness of thin layer doped by nanoparticules magnetic for the realization of phase matching between fundamental modes in monomode waveguides. M. Lebbal; T. Boumaza; M. Bouchemat; A. Hocini; F. Hobar; A. Benghalia; J. Rosseau; F. Royer // European Physical Journal - Applied Physics;May2008, Vol. 42 Issue 2, p75 

    Recently, research has been concentrated on the study of the magnetic nanoparticules for their use in the design of magneto-optical devices. The magneto-optical waveguides for example exploit the Faraday effect to obtain a rotation of polarization TE and TM independent of the propagation...

  • Magnetic field-directed self-assembly of magnetic nanoparticles. Tracy, Joseph B.; Crawford, Thomas M. // MRS Bulletin;Nov2013, Vol. 38 Issue 11, p915 

    This article reviews the principles of magnetic field-directed self-assembly (MFDSA) of magnetic nanoparticles (MNPs), along with recent studies that advance the fundamental understanding and potential capabilities of MNP MFDSA. This technology could eventually find application in manufacturing...

  • Generalized Stoner-Wohlfarth model and the non-langevin magnetism of single-domain particles. Chuev, M. // JETP Letters;Aug2007, Vol. 85 Issue 12, p611 

    In order to develop a model of magnetic dynamics for quantitative analysis of the temperature dependences of the magnetization of an ensemble of nanoparticles in various regimes of the preliminary cooling of a sample, the phenomenological Stoner-Wohlfarth model is generalized for single-domain...

  • Dynamics of magnetic single domain particles embedded in a viscous liquid. Usadel, K. D.; Usadel, C. // Journal of Applied Physics;2015, Vol. 118 Issue 23, p234303-1 

    Kinetic equations for magnetic nano particles dispersed in a viscous liquid are developed and analyzed numerically. Depending on the amplitude of an applied oscillatory magnetic field, the particles orient their time averaged anisotropy axis perpendicular to the applied field for low magnetic...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics