A surface acoustic wave launched by an interdigital transducer ripples the surface of the biosensor, confining light at the nanoscale to make it interact more efficiently with the molecules. Credit: Jorge Pedrós, Raúl Izquierdo (UPM) and Enrique Sahagún (Scixel) A team of researchers from the Institute for Optoelectronic Systems and Microtechnology at Universidad Politécnica de Madrid (UPM) has designed a biosensor capable of identifying proteins and peptides in quantities as low as a single monolayer. For that, a surface acoustic wave (SAW), a kind of electrically controlled nano earthquake on a chip, is generated with an integrated transducer to act Read More
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