Patent ID: 7255677

Claim:
A method for determining whethcr a mammal has a disease, said method comprising: (a) contacting an array of sensors with a sample from a mammal suspected of having a disease to generate a first sensor array response profile; and (b) comparing said first sensor array response profile with a sensor array profile from a health mammal, thereby determining whether said mammal suspected of having a disease actually has said disease, wherein the array of sensors includes a chemical sensor electrically ccupled to first and second conductive leads, and wherein the contacting step comprises: a1) measuring a first response between the first and second conductive leads when the chemical sensor is contacted with a first marker gas at a first concentration; and a2) measuring a second response between the first and second conductive leads when the chemical sensor is contacted with the first marker gas at a second concentration different from the first concentration; and a3) generating the sensor array response profile based on the first and second responses.