Invention could help to crack down on illegal drug trade

A research team involving ANU has invented a system that can detect chemicals in miniscule quantities and could be developed into a portable drug-testing kit to help authorities crack down on the illegal drug trade. ANU supported Switzerland's École Polytechnique Fédérale de Lausanne, which led the project to develop this invention. ANU scientist Professor Dragomir Neshev said the invention measured infrared signatures of organic molecules and translated them into barcodes, which could be used to identify specific drugs. Infrared spectroscopy detects whether a given molecule is present in a sample by seeing if the sample absorbs light rays at the molecule's signature frequencies. "We think our invention could be developed into a commercial drug-testing prototype within just a few years," said Professor Neshev from the ANU Research School of Physics and Engineering. "Our invention can detect and recognise drugs in extremely small quantities which are released when the body metabolises drugs, providing a new technology for police to mobile-drug test motorists or suspected drug traffickers in a simple and non-invasive way. "The device could replace bulky and expensive mid-infrared spectrometers, which cost more than $100,000 each.