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:4/11/2017)... PALM BEACH GARDENS, Fla. , April 11, ... biometric identity management and secure authentication solutions, today ... million contract by Intelligence Advanced Research Projects Activity ... technologies for IARPA,s Thor program. "Innovation ... the onset and IARPA,s Thor program will allow ...
(Date:4/11/2017)... , April 11, 2017 NXT-ID, Inc. ... technology company, announces the appointment of independent Directors Mr. ... to its Board of Directors, furthering the company,s corporate governance ... Gino ... we look forward to their guidance and benefiting from their ...
(Date:4/5/2017)... , April 5, 2017 Today HYPR ... that the server component of the HYPR platform is ... providing the end-to-end security architecture that empowers biometric authentication ... HYPR has already secured over 15 million users across ... manufacturers of connected home product suites and physical access ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... ... October 10, 2017 , ... For the second ... a US2020 STEM Mentoring Award. Representatives of the FirstHand program travelled to Washington, ... from US2020. , US2020’s mission is to change the trajectory of STEM education ...
(Date:10/10/2017)... SANTA CRUZ, Calif. , Oct. 10, 2017 /PRNewswire/ ... SBIR grant from the NIH to develop RealSeq®-SC (Single ... preparation kit for profiling small RNAs (including microRNAs) from ... Cell Analysis Program highlights the need to accelerate development ... "New techniques for ...
(Date:10/9/2017)... Oct. 9, 2017  BioTech Holdings announced today ... which its ProCell stem cell therapy prevents limb ... The Company, demonstrated that treatment with ProCell resulted ... saved as compared to standard bone marrow stem ... resulted in reduction of therapeutic effect.  ...
(Date:10/9/2017)... (PRWEB) , ... October 09, 2017 , ... ... a four-tiered line of medical marijuana products targeting the needs of consumers who ... packaging of Kindred takes place in Phoenix, Arizona. , As operators of two ...
Breaking Biology Technology:
Cached News: