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Novel technique could provide early lung cancer diagnosis

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London: Researchers have developed a new technique that has the potential to identify specific lung cancer markers at the earliest possible stage in a convenient and reusable way.

The new technique could create a highly sensitive graphene biosensor with the capability to detect molecules of the most-common lung cancer biomarkers.

In addition, the new biosensor design could revolutionise the existing electronic nose (e-nose) devices that identify specific components of a specific vapour mixture — a person’s breath — and analyses its chemical make-up to identify the cause.

“The new biosensors which we have developed show that graphene has significant potential for use as an electrode in e-nose devices.

“For the first time, we have shown that with suitable patterning graphene can be used as a specific, selective and sensitive detector for biomarkers,” said Ben Hogan, postgraduate researcher from the University of Exeter in Britain.

With further development of the devices, a cheap, reusable and accurate breath test for early-stage detection of lung cancer can become a reality, the researchers added in a paper published in the journal Nanoscale.

Lung cancer is one of the most common and aggressive cancers, killing around 1.4 million people worldwide each year.

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