Journal
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
Volume 48, Issue 5, Pages 570-578Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/10.918596
Keywords
embryos; manipulation; microfluidics
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We have designed, built, and tested microfluidic systems capable of transporting individual, preimplantation mouse embryos (100-mum to 150-mum diameter) through a network of channels. Typical channels are 160 to 200 mum deep, 250 to 400 mum wide at the top, and narrower at the bottom (0 to 250 mum wide) due to the fabrication process, In these channels, a pressure gradient of 1 Pa/mm causes the medium to flow on the order of 10(-10) m(3)/s (100 nl/s), with an average speed of 1 to 2 mm/s, Under these flow conditions the embryos roll along the bottoms of the channels, traveling at 1/2 the speed of the fluid, By manipulating the pressure at the wells connected to the ends of the channels, the embryos can be transported to land retained at) specific locations including culture compartments and retrieval wells.
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