We use cookies to understand how you use our site and to improve your experience. This includes personalizing content and advertising. To learn more, click here. By continuing to use our site, you accept our use of cookies. Cookie Policy.

Features Partner Sites Information LinkXpress
Sign In
Advertise with Us
Detecto

Download Mobile App





New Biosensor Detects COVID-19 Virus in Air

By HospiMedica International staff writers
Posted on 25 Apr 2020
Print article
Image: New biosensor detects COVID-19 virus in air (Photo courtesy of Fusion Medical Animation)
Image: New biosensor detects COVID-19 virus in air (Photo courtesy of Fusion Medical Animation)
A team of researchers from Switzerland has succeeded in developing a novel sensor for detecting the new coronavirus that could be used to measure the concentration of the virus in the environment, such as in places where there are many people or in hospital ventilation systems.

The researchers from Empa (Zürich, Switzerland) and ETH Zurich (Zürich, Switzerland) usually work on measuring, analyzing and reducing airborne pollutants such as aerosols and artificially produced nanoparticles. However, the COVID-19 challenge being faced by the whole world made the team shift its focus to developing a sensor that can quickly and reliably detect SARS-CoV-2 - the new coronavirus. Even before the COVID-19 began to spread, the team was researching sensors that could detect bacteria and viruses in the air and in early January, it came up with the idea of using this basis to further develop the sensor in such a way that it could reliably identify a specific virus was born. The sensor would not necessarily replace the established laboratory tests, but could be used as an alternative method for clinical diagnosis, and more prominently to measure the virus concentration in the air in real time, such as in busy places like train stations or hospitals.

As opposed to the molecular method called reverse transcription polymerase chain reaction, or RT-PCR for short, used in labs to detect viruses in respiratory infections, the researchers have developed an alternative test method in the form of an optical biosensor. The sensor combines two different effects to detect the virus safely and reliably: an optical and a thermal one. The sensor is based on tiny structures of gold, so-called gold nanoislands, on a glass substrate. Artificially produced DNA receptors that match specific RNA sequences of the SARS-CoV-2 are grafted onto the nanoislands. The receptors on the sensor are the complementary sequences to the virus' unique RNA sequences, which can reliably identify the virus.

To demonstrate how reliably the new sensor detects the current COVID-19 virus, the researchers tested it with a very closely related virus: SARS-CoV which broke out in 2003 and triggered the SARS pandemic. The validation was successful although a number of developmental steps are still needed to enable the sensor to measure the coronavirus concentration in the air.

“Tests showed that the sensor can clearly distinguish between the very similar RNA sequences of the two viruses,” said Jing Wang, one of the researchers. “This still needs development work. But once the sensor is ready, the principle could be applied to other viruses and help to detect and stop epidemics at an early stage.”

Related Links:
Empa
ETH Zurich


BMP Whole Blood Analyzer: GEM Premier ChemSTAT
Gold Supplier
Newborn Hemoglobin Screening System
VARIANTnbs
New
Vital Signs Monitor
Q3
New
Endoscope Anti-Fogging Agent
ULTRASTOP

Print article

Channels

AI

view channel
Image: EchoGo Heart Failure is the first and only AI-enabled HFpEF detection platform for echocardiography (Photo courtesy of Ultromics)

AI Solution for Echocardiography to Revolutionize Diagnosis of Heart Failure with Preserved Ejection Fraction

Heart failure with preserved ejection fraction (HFpEF) is a type of heart failure often associated with co-morbidities and tends to be caused by increased pressure within the chambers of the heart.... Read more

Critical Care

view channel
Image: Lodestar DX provides lab-accurate test results in 30 minutes (Photo courtesy of Llusern Scientific)

Portable UTI Molecular Diagnostic Platform Provides Accurate Test Results in 40 Minutes

Despite being one of the most common types of infection Urinary Tract Infections (UTIs) are a comparatively neglected area of medicine. There are no highly accurate diagnostic tools available for point-of-care... Read more

Surgical Techniques

view channel
Image: ActivSight Intelligent Light has received CE Mark approval (Photo courtesy of Activ Surgical)

Enhanced Imaging System to Become a Game-Changer in the OR by Revolutionizing Surgical Vision

Critical structure identification and tissue perfusion assessment are essential for patients to have the best possible chance of healing well without facing life-threatening or costly complications.... Read more

Patient Care

view channel
Image: Automated cleaning system allows endoscopes to be cleaned direct from clinic (Photo courtesy of Aston University)

World’s First Automated Endoscope Cleaner Fights Antimicrobial Resistance

Endoscopes are long, thin tubes with a light and camera at one end. Due to the sensitivity of the materials and electronics they cannot be sterilized in an autoclave (a machine that uses steam under pressure),... Read more

Health IT

view channel
Image: Using digital data can improve health outcomes (Photo courtesy of Unsplash)

Electronic Health Records May Be Key to Improving Patient Care, Study Finds

When a patient gets transferred from a hospital to a nearby specialist or rehabilitation facility, it is often difficult for personnel at the new facility to access the patient’s electronic health records... Read more

Business

view channel
Image: The global multiparameter patient monitoring systems market is expected to surpass USD 15 billion by 2028 (Photo courtesy of Unsplash)

Global Multiparameter Patient Monitoring Systems Market Driven by Rising Chronic Illnesses

Multi-parameter patient monitoring equipment is used to assess the vital signs of patients who are suffering from a serious illness. These devices are meant to give the number of data sets on one screen... Read more
Copyright © 2000-2022 Globetech Media. All rights reserved.