title: Template stripped double nanohole in a gold film for nano-optical tweezers.
abstract: Double nanohole (DNH) laser tweezers can optically trap and manipulate objects such as proteins, nanospheres, and other nanoparticles; however, precise fabrication of those DNHs has been expensive with low throughput. In this work, template stripping was used to pattern DNHs with gaps as small as 7 nm, in optically thick Au films. These DNHs were used to trap streptavidin as proof of operation. The structures were processed multiple times from the same template to demonstrate reusability. Template stripping is a promising method for high-throughput, reproducible, and cost efficient fabrication of DNH apertures for optical trapping.
authors.affiliation: Electrical and Computer Engineering, University of Victoria, Victoria, BC, Canada.
authors.forename: Ana
authors.initials: A
authors.lastname: Zehtabi-Oskuie
authors.forename: Aurora A
authors.initials: AA
authors.lastname: Zinck
authors.forename: Ryan M
authors.initials: RM
authors.lastname: Gelfand
authors.forename: Reuven
authors.initials: R
authors.lastname: Gordon
mesh_terms: D057166:High-Throughput Screening Assays / Q000379:methods*; D006801:Humans; D053758:Nanoparticles / Q000032:analysis; D052898:Optical Tweezers; D019809:Streptavidin / Q000032:analysis
chemical_list: D019809:Streptavidin