title: Individual particle handling in a microfluidic system based on parallel laser trapping.
abstract: We present an optical trapping system combining individually addressable multiple laser traps with fluorescence spectroscopy. An in-line set of 64 near-IR laser diodes is used to create a line of individually addressable traps inside a microfluidic chip. This system is completed by an excitation/detection line for spectrally resolved fluorescence imaging of trapped particles. Highly parallel trapping in a constant flow (up to a few millimeters per second), fast particle handling rates (up to a few particles per second), and the possibility of recording fluorescence spectra of trapped objects lead to a performing bioanalytical platform, e.g., for highly parallel analysis and sorting.
authors.affiliation: Applied Optics Laboratory, School of Engineering, EPFL, Station 17, CH-1015 Lausanne, Switzerland. philippe.hamel@epfl.ch
authors.forename: Philippe
authors.initials: P
authors.lastname: Hamel
authors.forename: Bastien
authors.initials: B
authors.lastname: Rachet
authors.forename: Michael
authors.initials: M
authors.lastname: Werner
authors.forename: Mathieu
authors.initials: M
authors.lastname: Grossenbacher
authors.forename: Horst
authors.initials: H
authors.lastname: Vogel
authors.forename: Martin
authors.initials: M
authors.lastname: Forrer
authors.forename: Peter
authors.initials: P
authors.lastname: Ryser
authors.forename: René P
authors.initials: RP
authors.lastname: Salathé