HOME >> BIOLOGY >> NEWS
Quantum dots provide a faster, more sensitive method for detecting respiratory viral infections

In what may be one of the first medical uses of nanotechnology, a chemist and a doctor who specializes in infectious childhood diseases have joined forces to create an early detection method for a respiratory virus that is the most common cause of hospitalization among children under five.

Respiratory syncytial virus (RSV) sends about 120,000 children to the hospital in the United States each year. Although it is only life-threatening in one case out of every 100, it infects virtually all children by the time they are five. Few children in the U.S. die from RSV but it also attacks the elderly, causing some 17,000 to 18,000 deaths annually. Individuals with impaired immune systems are another highly susceptible group. Worldwide, the virus causes about one million deaths annually.

Current methods of detecting the virus can take from two to six days, postponing effective treatment. The new, high-tech method uses multi-colored, microscopic fluorescent beads, called quantum dots, which bind to molecular structures that are unique to the virus's coat and the cells that it infects. In a paper appearing in the June issue of the journal Nanoletters, the Vanderbilt researchers report that not only can a quantum dot system detect the presence of particles of the respiratory syncytial virus (RSV) in a matter of hours, rather than the two to five days required by current tests, but it is also more sensitive, allowing it to detect the virus earlier in the course of an infection. When an RSV virus infects lung cells, it leaves part of its coat on the cell's surface. Quantum dots have been linked to antibodies keyed to structures unique to RSV's coat. As a result, when quantum dots come in contact with either viral particles or infected cells they stick to their surface.

"The problem with current detection technologies is that they take too long," says Professor of Pediatrics James E. Crowe, Jr. who collaborated with Associate Professor of Chemistry David W. Wright
'"/>

Contact: David F. Salisbury
david.salisbury@vanderbilt.edu
615-343-6803
Vanderbilt University
9-Jun-2005


Page: 1 2 3 4

Related biology news :

1. Quantum secrets of photosynthesis revealed
2. Quantum biology -- Powerful computer models reveal key biological mechanism
3. NRC team uses new Quantum Technology to control molecules
4. Quantum dots reviewed -- Could these nanoparticles hold the cure to cancer?
5. Connect the Quantum Dots
6. Quantum dot method rapidly identifies bacteria
7. Quantum cascade lasers key to handheld gas and liquid sensors
8. Quantum dots research leads to new knowledge about protein binding in plants
9. New study suggests Concord grape juice may provide protection against breast cancer
10. Female gender provides an advantage in renal diseases
11. Forecasting system provides flood warnings to vulnerable residents of Bangladesh

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/23/2017)... the first robotic gym for the rehabilitation and functional motor sense evaluation ... Genoa, Italy . The first 30 robots will be available from ... . The technology was developed and patented at the IIT laboratories ... Technology thanks to a 10 million euro investment from entrepreneur Sergio Dompè. ... ...
(Date:5/16/2017)... 2017   Bridge Patient Portal , an ... MD EMR Systems , an electronic medical record ... have established a partnership to build an interface ... GE Centricity™ products, including Centricity Practice Solution (CPS), ... These new integrations will allow healthcare delivery networks ...
(Date:4/24/2017)... , April 24, 2017 ... and partner with  Identity Strategy Partners, LLP (IdSP) ... "With or without President Trump,s March 6, 2017 ... Terrorist Entry , refugee vetting can be instilled with ... resettlement. (Right now, all refugee applications are suspended ...
Breaking Biology News(10 mins):
(Date:9/20/2017)... , ... September 20, 2017 ... ... published findings of a study examining the effects of exoskeleton-assisted walking on ... cord injury (SCI). The article, "Neuromechanical adaptations during a robotic powered exoskeleton ...
(Date:9/20/2017)... ... September 20, 2017 , ... Foresight Institute, a leading ... transformative technologies, announced the winners for the 2017 Foresight Institute Feynman Prizes.These are ... nanotechnology/molecular manufacturing. , Established in 1993 and named in honor of pioneer physicist ...
(Date:9/19/2017)... SC (PRWEB) , ... September 19, 2017 , ... ... safely and accurately automates the most dangerous step of sample prep for metals ... system to provide automation at an affordable price. The system is ideal for ...
(Date:9/19/2017)... ... September 19, 2017 , ... ... group of funded early-stage tech companies. “Grit” author Angela Duckworth and her team ... the ic@3401 community is Cooley, an international law firm with decades of experience ...
Breaking Biology Technology:
Cached News: