Scientists in Germany have created a new molecular sensor that can detect influenza viruses using taste-based self-tests, such as chewing gum or lollipops, offering a quick, low-cost diagnostic alternative.
WÜRZBURG: In a breakthrough that could transform flu detection, researchers from the University of Würzburg, Braunschweig, and Cologne have developed a molecular sensor that can identify influenza viruses through taste. The innovation, published in ACS Central Science, may soon allow people to detect flu infections by simply chewing gum or sucking on a lollipop.
Influenza remains one of the world’s most serious infectious diseases, claiming nearly 500,000 lives annually. The newly developed sensor uses the natural human sense of taste to signal infection. When it detects influenza viruses in saliva, it releases a flavour compound—providing a clear and immediate indication of infection without the need for laboratory testing or medical equipment.
“This strategy opens up new possibilities for early detection and control of influenza worldwide,” said Professor Lorenz Meinel, lead researcher and Chair of Drug Formulation and Delivery at the University of Würzburg. “Instead of relying on expensive and complex tests, we use taste as a biological tool for diagnosis.”
The sensor’s key components are thymol, a natural compound found in thyme, and a virus-specific sugar molecule. When exposed to influenza viruses, the sugar bond breaks, releasing thymol and creating a recognisable taste in the mouth.
Researchers are now working on incorporating the sensor into chewing gum and lollipops for everyday use, aiming to make the system suitable for mass production within the next four years.
Such simple, low-cost diagnostic tools could play a vital role in schools, nurseries, and elderly care homes, helping control outbreaks early—particularly in developing regions. The team also envisions integrating artificial intelligence to track infection patterns and forecast potential epidemics.
