Nano Archive

Can polymer brushes induce motion of nano-objects?

Prokhorova, S. A and Kopyshev, A. and Ramakrishnan, A. and Zhang, H. and Rühe, J. (2003) Can polymer brushes induce motion of nano-objects? Nanotechnology , 14 (10). pp. 1098-1108.

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In searching for new and efficient mechanisms for moving or propelling nano-sized objects across a flat surface, we discuss the idea of using the periodically switchable topography of a certain class of polymer substrates. In this paper, we exploit the peculiar properties of diblock-copolymer and mixed brushes that can undergo transitions between very distinct topographical patterns and a flat state. We investigate if, during the transition process, the reshaping of the surface structure, accompanied by a microphase transition, could deliver a sufficient amount of mechanical work to move objects adsorbed on the surface. We show this by following the spatial distribution of an ensemble of silica particles adsorbed on several kinds of poly(methyl methacrylate–b-glycidyl methacrylate) diblock-copolymer brushes, when the surface topography undergoes many periods of the switching process.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:5616
Deposited By:JNCASR
Deposited On:11 Aug 2009 07:20
Last Modified:11 Aug 2009 07:20

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