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Manufacturing of two and three-dimensional micro/nanostructures by integrating optical tweezers with chemical assembly

Published online by Cambridge University Press:  14 June 2005

Kenneth Castelino ,
Srinath Satyanarayana  and
Metin Sitti
Kenneth Castelino
Affiliation:
Department of Mechanical Engineering, University of California, Berkeley, CA 94720 (USA).
Srinath Satyanarayana
Affiliation:
Department of Mechanical Engineering, University of California, Berkeley, CA 94720 (USA).
Metin Sitti
Affiliation:
Dept. of Mechanical Engineering and Robotics Institute, Carnegie Mellon University, PA 15213 (USA).
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Abstract

Optical tweezers have been used as versatile tools for non-contact manipulation of micrometer-sized entities. This paper proposes a hybrid micro/nanoscale manufacturing system using optical tweezers and chemical linkages for fabricating 2D and 3D micro/nanostructures. A holographic multiple trap optical tweezers system is first used to trap particles in a desired pattern. The particles are then connected to form rigid units using suitable chemistry. Connection schemes based on gold seeding, complementary-DNA linkage and streptavidin-biotin chemistry are presented and possible applications of this technique are explored. This method combines the advantages of top-down and bottom-up approaches and is compatible with organic and inorganic materials.

Keywords

Micro/NanoroboticsOptical tweezersChemical assemblyMicro/NanoassemblyRapid prototypingDiffractive optics
Type
Research Article
Information
Robotica , Volume 23 , Issue 4 , July 2005 , pp. 435 - 439
Copyright
© 2005 Cambridge University Press

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