Mexican scientists develop microchip for quick and cheap tests of coronavirus
The device created by Mexicans would determine in less than an hour whether or not someone is infected with Covid-19.
Mexican scientists disclosed that they work at the creation of a microchip that allows rapid tests and at a low cost to diagnose the Covid-19.
The project is carried out by specialists from the Center for Research and Advanced Studies (Cinvestav), who seek to contribute their grain of sand in the development of tools that allow stopping the spread of the coronavirus.
How does the microchip work?
José Luis García Cordero, team leader, pointed out that the device is made up of microchannels through which a serum sample, obtained from the patient’s blood; and a biosensor, to recognize the antibodies produced by the body against the virus.
In a statement, the scientist explained that the sample is incubated for 20 minutes, and then washed and applied a particular molecule to obtain in half an hour fluorescent signal that indicates if the person is infected.
García Cordero pointed out that the sensitivity of the device depends on the concentration of the antibody in the serum, which varies depending on the time of infection.
The device identifies all infected people, even if they have no symptoms
In this sense, he indicated that the device would only serve to detect Covid-19 since all people with this virus secrete an antibody absent in those who are not infected, which the device recognizes.
Therefore, he stressed, its primary virtue is that it identifies all infected people, even if they have no symptoms and do not go for medical examination. Still, they are carriers and potential propagators of the vector, he stressed.
They plan versions for use at home and in the laboratory
Finally, the specialist pointed out that the microchip for the device could have two versions: one for laboratories, where many serum samples arrive for multiple tests; another for use in the office or home.
With information from Notimex.