Suncor Energy Inc. has teamed up with Western University scientists to tackle the shortage of COVID-19 tests, using technology intended to treat wastewater from refineries to produce home testing kits.
The devices, which could be ready in a few months, would allow individuals to test small samples of bodily fluid, such as blood, for COVID-19 antibodies, and receive the results in minutes.
We started in mid-March and its been going very well, said Martin Flatley, a senior staff engineer at Suncors Sarnia, Ont., refinery. Western is about 100 kilometres down the road so its very easy to visit and bring samples. Were in constant contact all the time.
Suncor, the Calgary-based oilsands giant, had already been collaborating with a lab led by Western biochemistry professor Dr. Gregory Gloor when the fast-moving coronavirus swept through North America, forcing closures of non-essential operations and universities.
The team was attempting to identify and sequence genomes of organisms that naturally break down napthenic acid, a toxic byproduct that is part of the wastewater produced by the refinery.
One floor below Gloors lab at Western, fellow biochemistry professors David Edgell and Bogumil Karas were working with students to examine a specific type of algae that had been shown to produce proteins in large quantities.
Their lab is basically next door and we see them all the time, we talk to them all the time, we go out for beers, said Sam Slattery, a PhD candidate in Edgells lab and a lead researcher on the COVID-19 test project.
After the Suncor project was put on hold as COVID-19 hit, the leaders of the two labs wondered if the algae known as PT algae could produce the protein necessary to react with COVID-19 antibodies in a test. As part of the process, the Suncor technology could be used to sequence the protein and the algae.
Someone said lets see what the algae could do in this situation, said Slattery. Suncor said were on board and that was it.
The past couple of months have seen Flatley, Slattery and PhD student Daniel Giguere working around strict university COVID-19 protocols including a restriction that calls for only one person in the lab at any one time to produce and sequence the algae and its protein.
The process would be an alternative to current methods, which generate the protein using mammalian and insect cells. That procedure relies on far more costly materials, including a media the rich broth used to grow the protein that costs about $3,000 a litre compared to pennies a litre for the media used in the algae process.
The algae is photosynthetic too, so the energy it needs is free, we dont have to feed it, said Slattery.
The collaboration, funded by Suncor and Mitacs, a non-profit organization funded by provincial governments to promote innovation, and should have a workable test within a few months.
Epidemiologists have urged countries to dramatically ramp up testing for COVID-19, arguing that identifying and isolating infected individuals is essential to keeping the viruss spread under control until a vaccine is developed.
The call for testing has become even more urgent as provinces ponder reopening their economies, raising the risk of a second wave of infections. However, fierce global demand for tests has left countries competing for limited supplies as they attempt to develop and ramp up domestic production.
At the moment, the most commonly administered test is the nasopharyngeal swab, which identifies the active presence of the virus. The 6-inch swab is inserted through the nose by a medical professional.
However, scientists have been anxiously awaiting the development of both at-home tests and antibody tests that could measure those that have already been infected. Enabling individuals to administer their own tests could dramatically improve existing data on infections, particularly since the disease is carried by asymptomatic individuals.
If you have antibodies, you are probably over the infection, said Barry Bloom, a professor of public health at Harvard University and a specialist in infectious diseases. If you dont have the antibodies and dont have symptoms, thats where youre at risk of being infected, youre a threat. But the only way to know that is to test.
Financial Post
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Suncor, Western University team up to make COVID-19 tests using wastewater tech - Financial Post
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