Microvalve Enabled Digital Microfluidic Systems for High Performance Biochemical and Genetic Analysis.

Microvalve Enabled Digital Microfluidic Systems for High Performance Biochemical and Genetic Analysis.
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DOI:
10.1016/j.jala.2010.08.003
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发表时间:
2010-12-01
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影响因子:
--
通讯作者:
Mathies, Richard A.
Mathies, Richard A.
中科院分区:
医学2区
文献类型:
--
作者:
Jensen, Erik C.;Zeng, Yong;Kim, Jungkyu;Mathies, Richard A.

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Microfluidic devices offer unparalleled capability for digital microfluidic automation of sample processing and complex assay protocols in medical diagnostic and research applications. In our own work, monolithic membrane valves have enabled the creation of two platforms that precisely manipulate discrete, nanoliter-scale volumes of sample. The digital microfluidic Automaton uses two-dimensional microvalve arrays to combinatorially process nanoliter-scale sample volumes. This programmable system enables rapid integration of diverse assay protocols using a universal processing architecture. Microfabricated emulsion generator array (MEGA) devices integrate actively controlled 3-microvalve pumps to enable on-demand generation of uniform droplets for statistical encapsulation of microbeads and cells. A MEGA device containing 96 channels confers the capability of generating up to 3.4 × 106 nanoliter-volume droplets per hour for ultrahigh-throughput detection of rare mutations in a vast background of normal genotypes. These novel digital microfluidic platforms offer significant enhancements in throughput, sensitivity, and programmability for automated sample processing and analysis.
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