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. 2003 Aug 13;125(32):9834-9.
doi: 10.1021/ja035755v.

Multicomponent submicron features of biomolecules created by voltage controlled deposition from a nanopipet

Andreas Bruckbauer  1 , Dejian Zhou, Liming Ying, Yuri E Korchev, Chris Abell, David Klenerman
Affiliations

Multicomponent submicron features of biomolecules created by voltage controlled deposition from a nanopipet

Andreas Bruckbauer et al. J Am Chem Soc. .

Abstract

We have used a nanopipet as a nanopen to locally and controllably deposit complex biomolecules, including antibodies and DNA, onto a surface to create multicomponent and functional submicron features. Key advantages of this method are that the biomolecules are always in solution and the applied voltage provides fine control of the delivery down to the single molecule level. Two consecutive cycles of deposition, to produce spatially varying features with different biological properties, were demonstrated with fluorescently labeled antibodies or biotin. This approach combines "top-down" fabrication, using the nanopen for local application, and "bottom-up" fabrication, using molecular recognition for self-assembly at defined positions, and opens up new possibilities in nanotechnology.

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