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New Analytical Technique that Detects Presence of Viruses in 20 Seconds Promises to Speed Up COVID-19 Testing

By LabMedica International staff writers
Posted on 27 Apr 2021
A new concept for rapidly analyzing for the presence of a virus from colds to coronaviruses has the potential to speed up COVID-19 testing as well as enhance the ability to test a large number of samples quickly.

The methodology developed by scientists at Lancaster University (Lancaster, UK) that is based on analyzing chemical elements has been adapted from an analytical technique used to identify metallic nanoparticles and is able to detect the presence of viruses within just 20 seconds. More...
The proposed technique, called ‘Single virus inductively coupled plasma mass spectroscopy’ (SV ICP-MS) analysis, can be used to quickly determine families of viruses. The concept uses diluted samples of fluids, such as nasal mucus or saliva, from patients. A plasma torch is used to atomize and ionize the virus particles. Measurements of intensities for selected masses of the elements from the viruses provide rapid results to show the presence of a virus or not. This process works on DNA and RNA virus types within seconds. Complementary analysis such as existing sequencing techniques can be tested to complete the identification, though they can take up to two days.

However, although the concept can identify that someone has a type of coronavirus for example, it would not be able to determine the type of coronavirus, or variants. Additional tests would still be required to find out the specific virus someone was infected with. While SV ICP-MS is not an alternative for tests developed to specifically identify types of COVID-2 infections, it could be used to discriminate if viruses from one family, such as coronaviruses, are present or not. If a virus is found to be present, more specific testing would be needed. Although the tests would need to be performed in a lab, it could be used to quickly identify whether people admitted to hospitals have been infected by a virus - enabling clinicians to decide treatments and also whether to admit patients into isolation wards.

“What we are proposing here is not a new COVID test but is a new concept to rapidly find out if there are viruses present,” said Professor Claude Degueldre, from Lancaster University’s Department of Engineering who developed the test. “This would be useful if people are ill but it is not known if they have a virus or another health condition that is making them sick. This concept would inform the clinical team whether or not there is a virus to inform early treatment actions and other measures such as the need for isolation. More detailed tests would still be required to discover the exact viral infection, but results from these take longer.”

Related Links:
Lancaster University


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