Scientists at The University of Texas at Austin have developed a new method to rapidly detect a single virus in urine, as reported this week in the journal Proceedings of the National Academy of Sciences.
Although the technique presently works on just one virus, scientists say it could be adapted to detect a range of viruses that plague humans including Ebola, Zika and HIV.
“The ultimate goal is to build a cheap, easy-to-use device to take into the field and measure the presence of a virus like Ebola in people on the spot,” says Jeffrey Dick, a chemistry graduate student and co-lead author of the study. “While we are still pretty far from this, this work is a leap in the right direction.”
The other co-lead author is Adam Hilterbrand, a microbiology graduate student.
The new method is highly specific, meaning it is only sensitive to one type of virus, filtering out possible false negatives caused by other viruses or contaminants.
There are two other commonly used methods for detecting viruses in biological samples, but they have drawbacks. One requires a much higher concentration of viruses, and the other requires samples to be purified to remove contaminants. The new method, however, can be used with urine straight from a person or animal.
The other co-authors are Lauren Strawsine, a postdoctoral fellow in chemistry; Jason Upton, an assistant professor of molecular biosciences; and Allen Bard, professor of chemistry and director of the Center for Electrochemistry.
The researchers demonstrated their new technique on a virus that belongs to the herpesvirus family, called murine cytomegalovirus (MCMV). To detect individual viruses, the team places an electrode — a wire that conducts electricity, in this case, one that is thinner than a human cell — in a sample of mouse urine. They then add to the urine some special molecules made up of enzymes and antibodies that naturally stick to the virus of interest. When all three stick together and then bump into the electrode, there’s a spike in electric current that can be easily detected.
The researchers say their new method still needs refinement. For example, the electrodes become less sensitive over time because a host of other naturally occurring compounds stick to them, leaving less surface area for viruses to interact with them. To be practical, the process will also need to be engineered into a compact and rugged device that can operate in a range of real-world environments.
The Latest on: Virus Sensors
via Google News
The Latest on: Virus Sensors
- Scientists Develop Method To Detect Single Virus Particles, May Lead To Faster Covid Teston November 28, 2020 at 3:27 am
Scientists have developed a new method for identifying single virus particles based on changes in electrical current when they pass through ultrasmall pores, an advance which they claim may lead to ...
- Grabbing Viruses Out of Thin Air: Portable Sensors for Detecting COVID-19 and Other Viruseson November 27, 2020 at 1:51 pm
The future could hold portable and wearable sensors for detecting viruses and bacteria in the surrounding environment. But we're not there yet. Scientists at Tohoku University have been studying ...
- A Wearable Virus Detector?on November 26, 2020 at 4:00 pm
Scientists have reviewed the most recent endeavors into using materials that can change mechanical into electrical or magnetic energy, and vice versa to fabricate functional biosensors. They hope to ...
- Virus-killing robot zaps airport viruses as pandemic travel picks upon November 25, 2020 at 11:00 am
As air travel gains some steam and coronavirus-related shutdowns return in pockets of the country, one of the latest iterations of virus-fighting tech at the airport is a germ-zapping robot at San ...
- Top Scenario: Ultrasonic Displacement Sensor Market by Key Vendors, Challenges and Opportunities 2027on November 25, 2020 at 2:43 am
Research Dive :According to a recent report published by Research Dive, titled, Ultrasonic Displacement Sensor Market by Type, Component, Transducer Type, and End-users: Global Opportunity Analysis ...
- Soil Moisture Sensor Market Growth Prospects, Scope, Addressing Structure and Potential | METER Group, Inc.on November 24, 2020 at 5:54 pm
A consciously conceived and designed business intelligence report titled Global Soil Moisture Sensor market 2020 by Manufacturers, Type, and Application, Forecast to 2029 by MarketResearch.biz ...
- Disposable Medical Sensors Market Qualitative Data Research Report Expected Marvelous Growth by 2029 | Medtronic plc., GE Healthcare Limitedon November 24, 2020 at 3:23 pm
A consciously conceived and designed business intelligence report titled Global Disposable Medical Sensors market 2020 by Manufacturers, Type, and Application, Forecast to 2029 by MarketResearch.biz ...
- Japan-France team to develop paper sensor for COVID-19 detectionon November 23, 2020 at 8:34 pm
A team of researchers from the University of Tokyo and the French National Center for Scientific Research will team up to develop the test kit.
- Proximity Sensors Market 2020-2024 | Post-Pandemic Analysis and Emergent Opportunities | Technavioon November 20, 2020 at 1:23 am
The proximity sensors market is expected to grow by USD 1.09 billion during 2020-2024, according to Technavio. The report offers a detailed analysis of the impact of COVID-19 pandemic on the proximity ...
- Global Air Quality Sensor Market Forecast Report 2020-2027 with COVID-19 Impact Insightson November 18, 2020 at 2:04 pm
The "Air Quality Sensor Market Forecast to 2027 - COVID-19 Impact and Global Analysis by Type; Location; and End User" report has been added to ResearchAndMarkets.com's offering. The market was valued ...
via Bing News