KentuckyFC (1144503) writes "The study of proteins has become one of the hottest topics in science in the last 20 years, and not just for biologists. Researchers have been measuring the electrical properties of proteins for some time, discovering that some of them act like switches in certain circumstances. That's potentially useful but without a robust theoretical model of how these properties arise, nobody has been able to incorporate proteins into real devices. Now electronics engineers have developed the first model that reliably describes the real electrical behaviour of proteins and how it changes when they bond to other molecules. It even predicts the behaviour in new situations. That should make it possible to use proteins in the same way as other electronic components such as transistors, diodes and so on. That's leading to an entirely new field of science called proteotronics in which proteins work seamlessly with other components in electronic devices. First up, an electronic nose based on the olfactory receptor OR-17, a protein found in rats, which behaves like an electronic switch when it detects the presence of aldehydes such as octanal."
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