Friday, August 8, 2014

Terahertz Chip Identifies Short Strands of DNA | MIT Technology Review

Terahertz Chip Identifies Short Strands of DNA | MIT Technology Review: They say that the sequence of bases in an oligonucleotide determines the way in which the strand resonates at frequencies in the terahertz range...

...they have tested it using a device they call a silicon nanosandwich, a quantum well of p-type silicon surrounded by barriers doped with boron. This produces terahertz radiation inside the well where the oligonucleotide is deposited at a concentration that allows a single molecule to enter.

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