Laocharoensuk, Rawiwan and Burdick, Jared and Wang, Joseph (2008) Carbon-nanotuble-induced acceleration of catalytic nanomotors. ACS NANO, 2 (5). pp. 1069-1075.
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Official URL: http://dx.doi.org/10.1021/nn800154g
Synthetic nanoscale motors represent a major step toward the development of practical nanomachines. Despite impressive progress, man-made nanomachines lack the efficiency and speed of their biological counterparts. Here we show that the incorporation of carbon nanotubes (CNT) into the platinum (Pt) component of asymmetric metal nanowire motors leads to dramatically accelerated movement in hydrogen-peroxide solutions, with average speeds (50-60 mu m/s) approaching those of natural biomolecular motors. Further acceleration-to 94 mu m/s, with some motors moving above 200 mu m/s-is observed upon adding hydrazine to the peroxide fuel. Factors influencing the accelerated movement, including the CNT loading and fuel concentration, are examined. Such development of highly efficient and controllable nanomotors offers great promise for self-powered nanoscale transport and delivery systems.
|Uncontrolled Keywords:||carbon nanotubes; catalytic nanomotors; high speed; hydrogen peroxide; hydrazine|
|Subjects:||Physical Science > Nanophysics|
Analytical Science > Nanotechnology for sensing and actuating
Physical Science > Nano objects
|Deposited By:||Anuj Seth|
|Deposited On:||18 Dec 2008 11:24|
|Last Modified:||19 Jan 2009 14:46|
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