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Tiny chip can quickly identify hundreds of thousands of DNA sequences


A metamaterial that can detect a huge array of gene fragments within 5 minutes could lead to devices for medical diagnostics or environmental monitoring



Health



23 August 2022

A chip that performs DNA tests

Jack Hu

A test that can detect hundreds of thousands of different fragments of DNA sequences, proteins or antibodies could be built onto a tiny silicon chip. Researchers say the technology could lead to devices for medical diagnostics or environmental monitoring.

Jack Hu at Stanford University in California and his colleagues created a metamaterial from silicon that can identify gene fragments just 22 nucleotides long within 5 minutes. When a sample is placed on the chip and near-infrared light is shone on one side of the …



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