Reagent delivery system
Prepackaged reagent reservoirs with associated nozzles allow for accurate, repeatable distribution of reagents in various types of reactions, reducing the risk of human error. Series of reservoirs may be arrayed on a sheet or plane for automated manipulation providing a simply format for organizing, storing, transporting, and distributing reagents needed in complex reactions such as those in the molecular biology field.
1. A reagent delivery system comprising:
a stage;
a multi-well plate positioned on the stage;
at least one plunger;
an indexing roller; and
a blister pack positioned above the multi-well plate and below the plunger and comprising:
an array of reagent reservoirs, each reagent reservoir comprising a deformable first barrier and a second barrier comprising an integrated nozzle, wherein actuation of the plunger on a reservoir of the array deforms the first barrier and discharging reagent contained therein through the nozzle into a well of the multi-well plate; and
indexing marks for identifying a position of one or more of the reservoirs relative to the plunger and a one or more wells of the multi-well plate for receiving discharged reagent, and wherein the indexing marks comprise notches that the indexing roller uses to manipulate the array relative to the plunger and the one or more wells of the plate.
2. The system of claim 1 , wherein the nozzle comprises a frangible valve.
3. The system of claim 1 , wherein the nozzle comprises an opening that retains reagent until said reagent is forced through said opening upon actuation of said deformable barrier.
4. The reagent delivery system of claim 1 , wherein the reservoir has an interior volume of from about 5 ul to about 100 ul.
5. The reagent delivery system of claim 1 , wherein the nozzle has a diameter of about 100 μm to about 600 μm.
6. The reagent delivery system of claim 1 , wherein the nozzle tapers from about 0.5 mm at an interior opening in the reservoir to about 0.6 mm near an opening outside the reservoir.
7. The reagent delivery system of claim 1 , wherein the nozzle comprises a sealing member configured to seal the reagents in the reservoir until the deformable barrier is deformed by the actuated plunger.
8. The reagent delivery system of claim 7 , wherein the sealing member is frangible.
9. The reagent delivery system of claim 7 , wherein the sealing member comprises a removable film.
10. The reagent delivery system of claim 1 , wherein the array comprises one or more through-holes configured to allow an additional reagent to be added to one or more wells of the multi-well plate through the array.
11. The reagent delivery system of claim 1 , wherein the plurality of reservoirs are disposed in the array in a plurality of rows and each indexing mark corresponds to one of the plurality of rows.
12. The reagent system of claim 1 , wherein the wells of the multi-well plate can be subjected to controlled heating, cooling, shaking, and/or magnetic manipulation in the reagent system.
13. The reagent system of claim 1 , wherein the system is configured to exchange the multi-well plate on the stage.