David Matthew Heap
Engineers in Bountiful, UT

License number
Utah 368548-2202
Category
Engineer/Land Surveyor
Type
Professional Engineer
Address
Address
Bountiful, UT

Professional information

David Heap Photo 1

Dna Amplification Using Electrolyte Conductance Heating And Temperature Monitoring

US Patent:
2002015, Oct 17, 2002
Filed:
Aug 12, 1999
Appl. No.:
09/373041
Inventors:
CARL T. WITTWER - SALT LAKE CITY UT, US
MARK G. HERRMANN - CLINTON UT, US
DAVID M. HEAP - BOUNTIFUL UT, US
International Classification:
C12M001/40
US Classification:
435/286100, 435/287200, 435/303100, 435/091200, 392/323000, 204/601000
Abstract:
A system for thermal cycling a sample utilizing electrolyte conductance heating. An electric current is passed through the sample to increase its temperature due to resistance heating. As the sample acquires more thermal energy its viscosity changes, which causes a change in resistance. Because of this characteristic, temperature of the sample can be measured as a function of resistance and temperature can be controlled using resistance of the solution as feedback to a circuit which controls the heating of the sample by electrical conductance.