Plasmid purification system and method
First Claim
1. An apparatus for the purification of DNA and the like comprising:
- a housing forming a reservoir having a plurality of chambers for containing a buffer solution;
means for circulating a buffer through said reservoir;
disposable means positionable within said housing and having first means including a gel for defining a first path extending between a first pair of said chambers, means for introducing a bacterial sample into said path at one end thereof, and second means for defining a second path intersecting said first path via an elution window at one end, having a collection window at the other end and extending between a second pair of said chambers; and
means for selectively applying an electrical potential along each of said paths for selectively moving a plasmid first along said first path from said bacterial sample to the intersection of said first path then along said second path to said collection window at the end thereof.
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Abstract
An apparatus for the purification of DNA and the like comprises a housing having walls forming a reservoir having a plurality of chambers for containing a buffer solution means for circulating a buffer through the reservoir, a disposable cassette within said housing having first means including a gel for defining a first path extending between a first pair of the chambers, a well for introducing a bacterial sample into the path at one end thereof, and a second path intersecting the first path via an elution window at one end, having a collection window at the other end and extending between a second pair of the chambers, and an electrical circuit for selectively applying an electrical potential along each of the paths for selectively moving a plasmid first along the first path from the bacterial well to the elution window, then along the second path to the collection window at the end thereof.
47 Citations
20 Claims
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1. An apparatus for the purification of DNA and the like comprising:
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a housing forming a reservoir having a plurality of chambers for containing a buffer solution; means for circulating a buffer through said reservoir; disposable means positionable within said housing and having first means including a gel for defining a first path extending between a first pair of said chambers, means for introducing a bacterial sample into said path at one end thereof, and second means for defining a second path intersecting said first path via an elution window at one end, having a collection window at the other end and extending between a second pair of said chambers; and means for selectively applying an electrical potential along each of said paths for selectively moving a plasmid first along said first path from said bacterial sample to the intersection of said first path then along said second path to said collection window at the end thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for the purification of DNA and the like comprising:
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a generally box-like housing forming a reservoir having a plurality of chambers for containing a buffer solution; means for circulating a buffer through said reservoir; a disposable cassette detachably mountable within said housing and having a pair of vertically spaced horizontally extending walls, including an electrophoretic agarose gel disposed therebetween for defining at least a part of a first path extending generally horizontally between a first pair of said chambers, an inlet well for introducing a bacterial sample into said path at one end thereof, and vertically aligned openings in said walls defining an elution window, a microchamber having a collection window and communicating with said elution window for defining a second path intersecting said first path via said elution window and extending between a second pair of said chambers; and means for selectively applying an electrical potential along each of said paths for selectively moving a plasmid first along said first path from said inlet well to said elution window, then along said second path to said collection window at the end thereof. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A process for the purification of DNA and the like comprising the steps of:
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selecting a housing having walls forming a reservoir having a plurality of chambers for containing a buffer solution; circulating a buffer through said reservoir; selecting and positioning disposable means within said housing and having first means including a gel for defining a first path extending between a first pair of said chambers, means for introducing a bacterial sample into said path at one end thereof, and second means for defining a second path intersecting said first path via an elution window at one end, having a collection window at the other end and extending between a second pair of said chambers; introducing a bacterial sample into said path at one end thereof; and selectively applying an electrical potential along each of said paths for selectively moving a plasmid first along said first path from said bacterial sample to said elution window, then along said second path to said collection window at the end thereof. - View Dependent Claims (18, 19, 20)
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Specification