Cancer can now be diagnosed for less than $2, thanks to Harvard University’s ‘paper machine’

A new portable disease-detecting “paper machine” has been developed by a team of researchers at Harvard University. What makes the device special is its low cost and efficiency since the machine can detect cancer, certain infectious diseases and genetic disorders for less than $2. A team headed by George Whitesides condensed the steps used in the detection of diseases to a handheld paper machine. The steps include the addition of sample preparation, DNA analysis and detection of the disease. The entire condensation of the steps used materials costing less than $2, the cheapest method ever invented by the researchers. “The prototype device integrates paper microfluidics (to enable fluid handling) and a multilayer structure, or a ‘paper machine,’ that allows a central patterned paper strip to slide in and out of a fluidic path and thus allows introduction of a sample, wash buffers, an amplification master mix, and detection reagents with minimal pipetting,...