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Autonomously Moving Catalytic Microellipsoids Dynamically Guided by External Magnetic Fields
Author(s) -
Tierno Pietro,
Albalat Rosa,
Sagués Francesc
Publication year - 2010
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201000832
Subject(s) - microscale chemistry , materials science , colloidal particle , nanotechnology , magnetic field , magnetic nanoparticles , catalysis , chip , colloid , anisotropy , aqueous solution , chemical engineering , nanoparticle , computer science , physics , chemistry , optics , engineering , biochemistry , quantum mechanics , telecommunications , mathematics education , mathematics
Spherical and anisotropic catalytic microtransporters are realized using spherical and elliptical colloids half‐coated with Pt and immersed in an aqueous H 2 O 2 solution. How to control and guide the anisotropc particles using dynamic magnetic modulations is demonstrated. The proposed method, which enables the control of chemically powered micrometerscale particles in fluid media, has potential for applications in microscale transport and lab‐on‐a‐chip technology.