Forget COVID K-9s – the new 3D printed ‘electric nose’ can sniff the virus in just 80 seconds with 94% accuracy
- The device consists of a long tube with sensors that fits into the sea cavity
- The nasal cavity is analyzed through deep learning that looks for specific odors
- Patients infected with COVID-19 emit chemicals that give off an aroma
- The system can diagnose in just 80 seconds and with an accuracy of 94%
New technology aims to speed up testing for coronavirus by ‘sniffing’ the patient’s nasal cavity and making a diagnosis in just 80 seconds.
Scientists at the Weizmann Institute of Science in Israel have designed a 3D-printed electric nose that analyzes aromas of chemicals in people infected with COVID-19.
The instrument, called Pen3, consists of a long tube with sensors that fits into the nostril to analyze the sea cavity.
Deep learning algorithms snoop around the nose and return real-time detection of COVID-19 infections – and with 94 percent accuracy.
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New technology aims to speed up testing for coronavirus by ‘sniffing’ patient’s nasal cavity and diagnosing in just 80 seconds
Project leader Professor Noam Sobel said in a: statement: ‘The e-nose generates a pattern in every scent – it characterizes the smell of COVID-19.
“We teach him to smell the coronavirus.”
Researchers trained Pen3 to identify volatile organic compounds (VOCs) in the inner nasal cavity.
Testing was carried out on 503 people and Pen3 was able to correctly identify 27 with coronavirus.
Scientists at the Weizmann Institute of Science in Israel have designed a 3D-printed electric nose that analyzes aromas of chemicals in people infected with COVID-19
‘Every disease has an odor because they alter metabolic processes. Metabolites have a smell’, explains Sobel.
Originally designed for sightseeing testing, Pen3 is attached to an electric lift that goes up to the person’s window, allowing them to remain in their vehicle during the process.
“When a compound interacts with the sensors, it results in an oxygen exchange that leads to a change in electrical conductivity,” Sobel says.
Sobel and his team envision the technology being used to test large gatherings and at airports to reduce wait times at other test locations.
Dubbed Pen3, the instrument consists of a long tube fitted with sensors, which fits into the nostril to analyze the sea cavity
The technology takes inspiration from previous work that found dogs can sniff out infections.
A study released on May 23, found that sniffer dogs are more effective than rapid tests at detecting cases of COVID-19.
Amazingly, the dogs can detect up to 94 percent of cases — making them significantly more accurate than rapid lateral flow tests.
The authors said their findings “exceeded all expectations” and that dogs could be used in workplaces, theaters and stadiums to help Britain return to normal.
The scientists, from the University of Durham and the London School of Hygiene and Tropical Medicine (LSHTM), are currently in talks with the Department of Health and the World Health Organization about using dogs at airports.
They said two dogs can screen 300 passengers coming off a plane for COVID-19 in just 30 minutes.
People identified as positive by the dogs would then be given a PCR test to confirm the results.
The pandemic started in Wuhan, China, with the first reports of an outbreak on December 31, 2019. From there, the virus spread around the world.