Deterministic lateral displacement device for droplet separation by size - Towards rapid clonal selection based on droplet shrinking

• We present a novel method for robust passive separation of microfluidic droplets by size using deterministic lateral displacement(DLD). We also show that droplets containing Saccharomyces Cervisiae shrink significantly during incubation while droplets containing only yeast media retain their size. We demonstrate the DLD device by sorting out shrunken yeast-cell containing droplets from a 40-fold excess of ∼33% larger yeast-cell-free droplets generated at the same time, suggesting that DLD might be used for clonal selection. The same device also separates 11 μm from 30μm droplets at a rate of 12000droplets/second, more than twofold faster than previously demonstrated passive hydrodynamic separation devices [1].

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Industriell bioteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Industrial Biotechnology (hsv//eng)

Keyword

Cells

Droplets

High-Throughput

Separation

Publication and Content Type

ref (subject category)

kon (subject category)