Issue 1, 2005

A microfluidic method for removal of the zona pellucida from mammalian embryos

Abstract

Many in vitro procedures involve manipulation of the zona pellucida (chimerics, transgenics, biopsy). We have demonstrated a microfluidic channel network to precisely control (spatially and temporally) the delivery of chemical treatments for the removal of the zona pellucida. Building devices in polydimethylsiloxane (PDMS) with channel dimensions on the same order as that of the embryo diameter (∼120 µm) allows precise control of the local fluid environment. The system uses pressure driven flows to control embryo positioning, embryo movement, and plug formation. Zona removal is achieved by briefly washing a plug of lysing agent (acid Tyrode's medium) over the embryo.

Article information

Article type
Technical Note
Submitted
04 May 2004
Accepted
15 Jul 2004
First published
14 Oct 2004

Lab Chip, 2005,5, 108-110

A microfluidic method for removal of the zona pellucida from mammalian embryos

H. C. Zeringue, M. B. Wheeler and D. J. Beebe, Lab Chip, 2005, 5, 108 DOI: 10.1039/B406703G

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