Laser switching and sorting for high speed digital microfluidics | Zendy

Matthieu Robert de Saint Vincent | Zendy; Régis Wunenburger | Zendy; JeanPierre Delville | Zendy

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Laser switching and sorting for high speed digital microfluidics

Author(s) -

Matthieu Robert de Saint Vincent,

Régis Wunenburger,

JeanPierre Delville

Publication year - 2008

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2911913

Subject(s) - microfluidics , sorting , drop (telecommunication) , laser , chip , digital microfluidics , materials science , microfluidic chip , micropatterning , computer science , nanotechnology , optoelectronics , optics , physics , electrowetting , telecommunications , dielectric , programming language

International audienceWe used thermocapillary stresses induced locally by laser on flowing drops to build high throughput drop switchers and sorters for digital microfluidics. Since the laser is disconnected to the chip, the method does not require dedicated micropatterning. We show switching efficiencies of 100% for drop velocities up to 1.3 cms, demonstrate the involved mechanism and apply laser switching for sorting droplets of different nature for lab-on-a-chip applications

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