Microfluidic System And Corresponding Method For Transferring Elements Between Liquid Phases And Use Of Said System For Extracting Said Elements
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United States of America Patent
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Issued Date -
May 24, 2012
app pub date -
Jun 18, 2010
filing date -
Jun 19, 2009
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Published
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Abstract
The invention relates to a microfluidic system including a unit for extracting elements from one liquid phase to at least one other liquid phase, a use of said system for performing said extraction, preferably for gelling polymer capsules coating such elements by cross-linking, and a method for extracting said elements. Said system comprises a substrate in which a network of micro-channels is etched, including a unit (10) for extracting elements (E), including: a depleting micro-channel (11) which carries a first phase (A) to be depleted; at least one enriching channel (12) which carries a second phase (B) to be enriched, said micro-channels meeting at two junctions upstream (Ja) and downstream (Jb) and forming a transfer chamber (13) between said junctions, each junction being such that the micro-channels are axially parallel or form an acute angle on either side of the junction; and a transfer means (14) arranged in the depleting micro-channel for diverting the elements towards the enriching micro-channel. According to the invention, the transfer means includes blocks (14) extending transversely to the axis of the depleting micro-channel, and the extraction unit includes an interface stabilising means (16) arranged downstream from the transfer means between the junctions and including pillars (16) or a surface coating located on an area of the downstream junction facing at least one of the micro-channels.
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Patent Owner(s)
Patent Owner | Address | |
---|---|---|
COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES | BAT LE PONANT 25 RUE LEBLANC PARIS 75015 |
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- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Berthier, Jean | Meylan, FR | 23 | 398 |
Le, Vot Sophie | Le Pont De Claix, FR | 4 | 70 |
Rivera, Florence | Meylan, FR | 8 | 91 |
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