Surface roughness-induced speed increase for active Janus micromotors

Udit Choudhury; Lluís Soler; John G. Gibbs; Samuel Sanchez; Peer Fischer

doi:10.1039/c5cc01607j

Surface roughness-induced speed increase for active Janus micromotors

Udit Choudhury, Lluís Soler, John G. Gibbs, Samuel Sanchez, Peer Fischer

Applied Physics and Materials Science

Research output: Contribution to journal › Article › peer-review

66 Scopus citations

Abstract

We demonstrate a simple physical fabrication method to control surface roughness of Janus micromotors and fabricate self-propelled active Janus microparticles with rough catalytic platinum surfaces that show a four-fold increase in their propulsion speed compared to conventional Janus particles coated with a smooth Pt layer.

Original language	English (US)
Pages (from-to)	8660-8663
Number of pages	4
Journal	Chemical Communications
Volume	51
Issue number	41
DOIs	https://doi.org/10.1039/c5cc01607j
State	Published - May 21 2015

ASJC Scopus subject areas

Catalysis
Electronic, Optical and Magnetic Materials
Ceramics and Composites
General Chemistry
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1039/c5cc01607j

Cite this

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title = "Surface roughness-induced speed increase for active Janus micromotors",

abstract = "We demonstrate a simple physical fabrication method to control surface roughness of Janus micromotors and fabricate self-propelled active Janus microparticles with rough catalytic platinum surfaces that show a four-fold increase in their propulsion speed compared to conventional Janus particles coated with a smooth Pt layer.",

author = "Udit Choudhury and Llu{\'i}s Soler and Gibbs, {John G.} and Samuel Sanchez and Peer Fischer",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2015.",

year = "2015",

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day = "21",

doi = "10.1039/c5cc01607j",

language = "English (US)",

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AU - Choudhury, Udit

AU - Soler, Lluís

AU - Gibbs, John G.

AU - Sanchez, Samuel

AU - Fischer, Peer

PY - 2015/5/21

Y1 - 2015/5/21

N2 - We demonstrate a simple physical fabrication method to control surface roughness of Janus micromotors and fabricate self-propelled active Janus microparticles with rough catalytic platinum surfaces that show a four-fold increase in their propulsion speed compared to conventional Janus particles coated with a smooth Pt layer.

AB - We demonstrate a simple physical fabrication method to control surface roughness of Janus micromotors and fabricate self-propelled active Janus microparticles with rough catalytic platinum surfaces that show a four-fold increase in their propulsion speed compared to conventional Janus particles coated with a smooth Pt layer.

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DO - 10.1039/c5cc01607j

M3 - Article

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JO - Chemical Communications

JF - Chemical Communications

IS - 41

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Surface roughness-induced speed increase for active Janus micromotors

Abstract

ASJC Scopus subject areas

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