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Massachusetts Institute of Technology (MIT) scientists say they have moved closer to creating "artificial noses" after finding a way to mass-produce smell receptors in a laboratory.
Artificial noses could one day replace dogs that sniff out drugs and explosives, and could have numerous medical applications including identifying diseases that have distinct odours, according to Shuguang Zhang, associate director of MIT's Centre for Biomedical Engineering and senior author of a study on the subject.