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Oct 29th, 2012
Cheap and simple microfluidic lab-on-a-chip detects analytes
Brigham Young University researchers have developed a simple new way of detecting tiny concentrations (down to a nanogram – one billionth of a gram) of a given chemical without the use of any complicate and expensive equipment.
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They created narrow channels within glass slides that are lined with receptors for the chemical to be quantified. When a sample drop is placed at one end of a channel, it is drawn in by capillary action. As the target molecules are captured by the receptors, the channel gradually becomes constricted. The distance that the liquid manages to travel is inversely proportional to the quantity of the target molecule in the sample.

Microfluidic chip for chemical compounds detection.

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