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

Kenneth Castelino, Srinath Satyanarayana, Metin Sitti
2005 Robotica (Cambridge. Print)  
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,
more » ... lementary-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.
doi:10.1017/s0263574704000864 fatcat:kjddbwfopvhtloi3jd73mlcl24