Apparatus and method for detecting metabolic activity

Details Apparatus and method for detecting metabolic activity Apparatus and method for detecting metabolic activity

1977-06-24

1979-05-22

Krawczewicz, Stanley T.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 64, 324 65R, 324 71R, 324 98, 1951035R, G01R 2700

Patent

active

041561805

ABSTRACT:
An apparatus and method for detecting metabolic activity in a medium which includes an electrical circuit suitable for passing electrical current through a medium which contains a suspected metabolic agent. The circuit includes means for generating a reference voltage. When metabolic activity occurs in the medium the voltage drop thereacross changes. To balance the changing voltage developed across the medium with the generated reference voltage, an adjustment of current has to be performed. By monitoring such adjustments, made electrically and automatically, there is a correlation made between those adjustments and the metabolic activity in the medium. Use of this apparatus and method allows large quantities of sample media to be tested for detection of metabolic activity rapidly, accurately and reliably.

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patent: 2891217 (1959-06-01), Grieg et al.
patent: 3419799 (1968-12-01), Papadeas
patent: 3443226 (1969-05-01), Knight
patent: 3448380 (1969-06-01), Harrington
patent: 3879662 (1975-04-01), Barneck
patent: 3916304 (1975-10-01), Roemer et al.
patent: 3984766 (1976-10-01), Thornton

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