Temperature control device with a flexible temperature control surface
A device for controlling temperature in a reaction chamber is disclosed. The device comprises: a bladder assembly comprising a housing dimensioned to hold a reaction chamber disposed within an interior volume of the housing; and a first temperature-control bladder disposed within the housing, the first temperature-control bladder is configured to receive a temperature-control fluid and comprises a flexible, heat conductive surface that comes in contact with at least a portion of an exterior surface of the reaction chamber after receiving the temperature-control fluid. Also disclosed are a bladder thermal cycler, a temperature-control bladder assembly and methods for producing a thermal cycle in a reaction chamber.
1. A method for performing a polymerase chain reaction (PCR) in a reaction chamber, comprising:
contacting said reaction chamber with a bladder assembly comprising:
a first temperature-control bladder configured to receive a temperature-control fluid from a first inlet channel and expel said temperature-control fluid from a first outlet channel, wherein said first temperature-control bladder comprises a flexible, heat conductive surface that comes in contact with at least a portion of an exterior surface of said reaction chamber after receiving said temperature-control fluid; and
a second temperature-control bladder configured to receive said temperature-control fluid from a second inlet channel and expel said temperature-control fluid from a second outlet channel, wherein said second temperature-control bladder comprises a flexible, heat conductive surface that comes in contact with another portion of exterior surface of said reaction chamber after receiving said temperature-control fluid;
a first heat exchanger that is connected to both said first and second inlet channels via a first two-way valve and a first three-way connector, said first heat exchanger maintains said temperature-control fluid at a first temperature;
a second heat exchanger that is connected to both said first and second inlet channels via said first two-way valve and said first three-way connector, said second heat exchanger maintains said temperature-control fluid at a second temperature; and
a pump located between said bladder assembly and said heat exchangers, said pump is connected to said first and second outlet channels via a three-way connector and is connected to either said first heat exchanger or said second heat exchanger via a second two-way valve; and
alternatively filling said first temperature-control bladder and said second temperature-control bladder with said temperature-control fluid at a first temperature and at a second temperature.
2. The method of claim 1 , wherein said reaction chamber comprises a microarray within said reaction chamber.
3. The method of claim 1 , wherein said first temperature is in the range of 80-105° C. and wherein said second temperature is in the range of 50-70° C.
4. The method of claim 1 , wherein said first temperature is about 95° C. and wherein said second temperature is about 65° C.
5. The method of claim 1 , wherein said first temperature-control bladder and said second temperature-control bladder are filled with said temperature-control fluid at a first temperature and at a second temperature alternatively for 30-50 times.
6. The method of claim 1 , wherein said bladders are capable of heating a reaction mixture in said reaction chamber at a rate of about 15° C./sec.
7. The method of claim 1 , further comprising filling said first temperature-control bladder and said second temperature-control bladder with said temperature-control fluid at a third temperature.
8. The method of claim 7 , wherein said third temperature is between said first temperature and said second temperature.