The new sensor quickly detects if a person is contagious. It will stop future outbreaks

Scientists at the University of Illinois at Urbana-Champaign and their colleagues from scientific organizations in the USA, Germany and

Argentina has created a new sensor that quickly detects infectious viruses without pretreating samples.

There are two key components to new development:

  • highly specific DNA fragments or aptamers,
  • highly sensitive technology of nanopores - pores with a diameter of several nanometers, sensitive to nucleic acids.

The former quickly recognize viruses and candifferentiate the virus infection status. Modern PCR tests cannot determine whether a sample is infectious or whether a person is contagious. This question can only be answered by special tests that require preparation and a few days before the results are ready.

The new method responds after 30 minutes, maximum two hours of waiting. It can be specially configured for different types of virus.

We have demonstrated the power of the sensor with two key viruses that cause infections around the world: the human adenovirus and the virus that causes COVID-19.

Research text

Researchers are working to further improve sensor sensitivity and selectivity

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