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Patent

Apparatus and method for performing microfluidic manipulations for chemical analysis and synthesis

TLDR
In this paper, a microchip laboratory system and method provide fluid manipulations for a variety of applications, including sample injection for microchip chemical separations, using photolithographic procedures and chemical wet etching.
Abstract
A microchip laboratory system and method provide fluid manipulations for a variety of applications, including sample injection for microchip chemical separations. The microchip is fabricated using standard photolithographic procedures and chemical wet etching, with the substrate and cover plate joined using direct bonding. Capillary electrophoresis and electrochromatography are performed in channels formed in the substrate. Analytes are loaded into a four-way intersection of channels by electrokinetically pumping the analyte through the intersection, followed by switching of the potentials to force an analyte plug into the separation channel.

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Citations
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Microfluidic large scale integration

TL;DR: The fluidic multiplexor as discussed by the authors is a combinatorial array of binary valve patterns that exponentially increases the processing power of a network by allowing complex fluid manipulations with a minimal number of inputs.
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Methods and apparatuses for analyzing polynucleotide sequences

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References
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Journal ArticleDOI

Micromachining a Miniaturized Capillary Electrophoresis-Based Chemical Analysis System on a Chip

TL;DR: In this article, the authors demonstrated a miniaturized system for sample handling and separation using electrophoresis-based separations of amino acids with up to 75,000 theoretical plates in about 15 seconds.
Journal ArticleDOI

Capillary electrophoresis and sample injection systems integrated on a planar glass chip

TL;DR: In this article, a complex manifold of capillary channels has been fabricated in a planar glass substrate and the separation of a mixture of fluorescein and calcein within the channels was achieved using electrophoresis.
Journal ArticleDOI

Planar chips technology for miniaturization and integration of separation techniques into monitoring systems. Capillary electrophoresis on a chip

TL;DR: In this paper, a chip-like structure for capillary electrophoresis is presented, which is based on the photolithographic technique for structures in the micrometer range.
PatentDOI

Active programmable electronic devices for molecular biological analysis and diagnostics

TL;DR: A self-addressable, self-assembling microelectronic device is designed and fabricated to actively carry out and control multi-step and multiplex molecular biological reactions in microscopic formats.
Journal ArticleDOI

Effects of injection schemes and column geometry on the performance of microchip electrophoresis devices

TL;DR: In this paper, a glass microchip column was fabricated for free-solution electrophoresis and two methods of sample introduction were evaluated employing a cross-type channel geometry.