Self-propelled nanotools

Alexander A. Solovev; Wang Xi; David H. Gracias; Stefan M. Harazim; Christoph Deneke; Samuel Sanchez; Oliver G. Schmidt

doi:10.1021/nn204762w

Self-propelled nanotools

Alexander A. Solovev, Wang Xi, David H. Gracias, Stefan M. Harazim, Christoph Deneke, Samuel Sanchez, Oliver G. Schmidt

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

Abstract

We describe nanoscale tools in the form of autonomous and remotely guided catalytically self-propelled InGaAs/GaAs/(Cr)Pt tubes. These rolled-up tubes with diameters in the range of 280-600 nm move in hydrogen peroxide solutions with speeds as high as 180 μm s ^-1. The effective transfer of chemical energy to translational motion has allowed these tubes to perform useful tasks such as transport of cargo. Furthermore, we observed that, while cylindrically rolled-up tubes move in a straight line, asymmetrically rolled-up tubes move in a corkscrew-like trajectory, allowing these tubes to drill and embed themselves into biomaterials. Our observations suggest that shape and asymmetry can be utilized to direct the motion of catalytic nanotubes and enable mechanized functions at the nanoscale.

Original language	English (US)
Pages (from-to)	1751-1756
Number of pages	6
Journal	ACS Nano
Volume	6
Issue number	2
DOIs	https://doi.org/10.1021/nn204762w
State	Published - Feb 28 2012
Externally published	Yes

Keywords

catalytic motor . cell
microjets
micromachines
nanofabrication
self-propulsion

ASJC Scopus subject areas

General Materials Science
General Engineering
General Physics and Astronomy

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10.1021/nn204762w

Cite this

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title = "Self-propelled nanotools",

abstract = "We describe nanoscale tools in the form of autonomous and remotely guided catalytically self-propelled InGaAs/GaAs/(Cr)Pt tubes. These rolled-up tubes with diameters in the range of 280-600 nm move in hydrogen peroxide solutions with speeds as high as 180 μm s -1. The effective transfer of chemical energy to translational motion has allowed these tubes to perform useful tasks such as transport of cargo. Furthermore, we observed that, while cylindrically rolled-up tubes move in a straight line, asymmetrically rolled-up tubes move in a corkscrew-like trajectory, allowing these tubes to drill and embed themselves into biomaterials. Our observations suggest that shape and asymmetry can be utilized to direct the motion of catalytic nanotubes and enable mechanized functions at the nanoscale.",

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T1 - Self-propelled nanotools

AU - Solovev, Alexander A.

AU - Xi, Wang

AU - Gracias, David H.

AU - Harazim, Stefan M.

AU - Deneke, Christoph

AU - Sanchez, Samuel

AU - Schmidt, Oliver G.

PY - 2012/2/28

Y1 - 2012/2/28

N2 - We describe nanoscale tools in the form of autonomous and remotely guided catalytically self-propelled InGaAs/GaAs/(Cr)Pt tubes. These rolled-up tubes with diameters in the range of 280-600 nm move in hydrogen peroxide solutions with speeds as high as 180 μm s -1. The effective transfer of chemical energy to translational motion has allowed these tubes to perform useful tasks such as transport of cargo. Furthermore, we observed that, while cylindrically rolled-up tubes move in a straight line, asymmetrically rolled-up tubes move in a corkscrew-like trajectory, allowing these tubes to drill and embed themselves into biomaterials. Our observations suggest that shape and asymmetry can be utilized to direct the motion of catalytic nanotubes and enable mechanized functions at the nanoscale.

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KW - catalytic motor . cell

KW - microjets

KW - micromachines

KW - nanofabrication

KW - self-propulsion

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Self-propelled nanotools

Abstract

Keywords

ASJC Scopus subject areas

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