Optical Chip Detects Blood Molecules

A portable 'lab on a chip' that can identify target molecules in blood samples has been created. It is being used to measure fertility hormones and detect the genes associated with certain types of cancer. Much of modern medicine relies on the testing of blood and other samples for key molecules that confirm the presence of a specific disease or other disorder. Samples need to be sent to a laboratory and it may be several days before the result comes back. Wouldn't it be better if the result were available within a few minutes of the sample being taken, while the patient is still there with the doctor?

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