Navigation Links
Virus detector harnesses ring of light in 'whispering gallery mode'
Date:8/23/2012

By affixing nanoscale gold spheres onto a microscopic bead of glass, researchers have created a super-sensor that can detect even single samples of the smallest known viruses. The sensor uses a peculiar behavior of light known as "whispering gallery mode," named after the famous circular gallery in St. Paul's Cathedral in London, where a whisper near the wall can be heard around the gallery.

In a similar way, waves of light are sent whirling around the inside of a small glass bead, resonating at a specific frequency. Just as a small object on a vibrating violin string can change its frequency ever so slightly so too can a virus landing on the sensor change the resonant frequency of the light.

With the initial glass sphere, researchers were able to detect changes in frequency from viruses about the size of influenza, a relatively large virus. The system, however, was not sensitive enough to detect anything smaller, such as the Polio virus.

The researchers were able to increase the sensitivity of the device nearly seventyfold by adding gold nanospheres to the surface of the glass, which created what the researchers referred to as "plasmonic hot spots" areas where the light waves coupled with waves of electrons. This hybrid sensor not only detected the presence of the MS2 virus the current light-weight in the world of RNA viruses it also was able to determine the weight of the virus by measuring the precise frequency change of the light. With a few minor adjustments, the sensor should also be able to detect single proteins, such as cancer markers that appear in the blood long before outward signs of cancer can be detected.

The results were published in the American Institute of Physics (AIP) journal Applied Physics Letters.


'/>"/>

Contact: Charles Blue
cblue@aip.org
301-209-3091
American Institute of Physics
Source:Eurekalert

Page: 1

Related medicine news :

1. Investigators trace of role reusable grocery bag in norovirus outbreak
2. 16th-century Korean mummy provides clue to hepatitis B virus genetic code
3. New study shows why swine flu virus develops drug resistance
4. Vygone Introduces A New Zapper For Effective Relief From Herpes Virus Related Skin Problems
5. Vygone Presents A New Product To Deal With Genital Warts And Other Herpes Virus Related Skin Problems
6. Moffitt researchers find cutaneous human papillomavirus infection a risk factor for skin cancer
7. Hepatitis C Virus Levels Higher in Certain Injection Drug Users
8. Antibodies for new rotavirus vaccines
9. SEARCH study shows 1-year drop in HIV virus levels in rural Ugandan parish after campaign
10. Human papillomavirus types do not replace others after large-scale vaccination
11. Only 1 in 4 Americans With HIV Has Virus Under Control: CDC
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/23/2014)... 23, 2014 Dr. Connie Casad has announced ... to new office space at 12200 Park Central Drive, Suite ... office will be Park Cities Aesthetics, Optimal Health and Wellness, ... announcing her move, Dr. Casad said, “The patients’ comfort and ... select, we want them to always feel like their needs ...
(Date:9/23/2014)... (HealthDay News) -- A test used to diagnose lung cancer ... lung infections are more common, a new analysis says. ... the use of what,s known as functional imaging. For lung ... used, according to the study authors. Cancerous tumors generally ... of the lungs that don,t have cancer, according to background ...
(Date:9/23/2014)... Avid collector Andrew Hawley, from Vintage Rock Posters, announces ... concert posters. The Doors were a smash hit after the ... Seattle Eagles Auditorium concert was held on July 23. ... Auditorium in November the same year. The artist that created ... three colors. The poster is a split fountain silkscreen printed ...
(Date:9/23/2014)... September 23, 2014 What: Rutgers ... Upper West Side that embodies the inclusion and ... Christians, Scripture and the Ecological Crisis, a public ... Rhodes Professor Emerita of Old Testament at Louisville ... ancient wisdom that lends insight into current ecological ...
(Date:9/23/2014)... CORVALLIS, Ore. A recent Oregon survey about an ... into the daily routine of elementary school students found ... students and teachers, and offered clear advantages for overly ... was developed and produced by the Healthy Youth Program ... and is available nationally. , Brain Breaks leads children ...
Breaking Medicine News(10 mins):Health News:Dr. Connie Casad Moving to New Office Location 2Health News:Lung Infections May Hamper Ability to Detect Lung Cancer 2Health News:Inhabiting Eden: Christians, Scripture, and the Ecological Crisis – Public Lecture to Discuss Faith-Based Environmentalism 2Health News:'Brain Breaks' increase activity, educational performance in elementary schools 2Health News:'Brain Breaks' increase activity, educational performance in elementary schools 3
... is sheer torture for your aching back too. If ... bring relief. ,Inserting fine needles into the ... pain and even moderately severe depression. ,"Acupuncture ... such as migraines and arthrosis, but also stress and ...
... Minister Pranab Mukherjee who is undergoing treatment for head injuries ... discharged// on tomorrow. The minister met with a road accident ... to the doctors attending him. ,A team of ... found him "active and cheerful". ,"He is ...
... thought that hypoglycemic coma causes brain damage. On the contrary ... the coma//, as discovered by researchers from San Francisco VA ... ,The study results may have implications on the treatment of ... it can be applied to humans. ,Insulin is ...
... plus progestin shows a 24 percent reduction in risk for ... than 10 years after menopause. ,The analysis, ... in the Kronos Early Estrogen Prevention Study (KEEPS), also showed ... 50 to 59 using hormone therapy. ,However, the ...
... be frowned upon. ,Dancing at all-night raves combined ... fluids// can produce enormous harm. Ecstasy interferes with the ... in deaths due to kidney or cardiovascular failure brought ... campaigners could warn. ,But a new study ...
... between secondhand smoke and an increased risk of Mycobacterium tuberculosis ... with TB, according to a study published in the April ... be a "cause of great concern considering the high prevalence ... Boon of KNCV Tuberculosis Foundation in the Netherlands said. ...
Cached Medicine News:Health News:Acupuncture Points Way to Relief from Many Ailments 2Health News:Recovering Pranab Mukherjee Likely to Be Discharged Tomorrow 2Health News:Glucose Causes Death of Brain Cells in Rodents Following Hypoglycemic Coma 2Health News:Glucose Causes Death of Brain Cells in Rodents Following Hypoglycemic Coma 3Health News:Early Estrogen Therapy May Reduce Cardiovascular Risks 2Health News:Study Finds Link Between Secondhand Smoke and TB Infection in Children 2
(Date:9/23/2014)... Sept. 23, 2014   MedNet Solutions , a global ... is pleased to announce that it will once again be ... (SCDM) Annual Conference, to be held this year from September ... , Nevada. MedNet team members, in conjunction with representatives from many ... will also be in attendance, will be providing demonstrations of ...
(Date:9/23/2014)... ORLANDO, Fla. and DUBLIN ... Inc. (OTC-BB: TNIB) ("we" or the "Company"), a ... innovative therapies for autoimmune diseases in emerging nations, ... has approved our common stock for DTC,s Deposit ... Fast Automated Securities Transfer Service ("FAST") transfer agent ...
(Date:9/23/2014)... Sept. 23, 2014  Hill-Rom (NYSE: HRC ... Health ( Renton, WA ), the nation,s ... the companies, existing relationship as Hill-Rom now becomes Providence ... capital bed frame and surface products. ... in the U.S.  It operates 34 hospitals, 475 physician ...
Breaking Medicine Technology:MedNet Solutions - Proud To Sponsor The SCDM 2014 Annual Conference 2TNI BioTech, Inc. Announces Its Stock is Now DTC DWAC/FAST Eligible 2TNI BioTech, Inc. Announces Its Stock is Now DTC DWAC/FAST Eligible 3TNI BioTech, Inc. Announces Its Stock is Now DTC DWAC/FAST Eligible 4Hill-Rom Announces Seven-Year, Sole-Source Contract with Providence Health 2
... SILVER SPRING, Md., May 2, 2011 The U.S. ... used with diet and exercise, to improve blood glucose ... (Logo: http://photos.prnewswire.com/prnh/20090824/FDALOGO ) People with Type ... insulin, a hormone that regulates the amount of glucose ...
... and SEATTLE, May 2, 2011 CMC Biologics, ... in Copenhagen, Denmark and Seattle, Washington USA, announced ... serve at its Chief Executive Officer. CMC Biologics, ... delivering  world class, fully integrated, biopharmaceutical process development ...
Cached Medicine Technology:FDA Approves New Treatment for Type 2 Diabetes 2CMC Biologics Announces Appointment of New CEO 2
... Laboratories is a national reference laboratory and ... and development. ARUP offers an extensive test ... tests in clinical and anatomic pathology. Owned ... clients include more than half of the ...
... ARUP Laboratories is a national reference ... laboratory research and development. ARUP offers an ... unique medical tests in clinical and anatomic ... ARUP Laboratories' clients include more than half ...
... national reference laboratory and a worldwide leader ... offers an extensive test menu of highly ... and anatomic pathology. Owned by the University ... than half of the nation's university teaching ...
... national reference laboratory and a worldwide leader ... offers an extensive test menu of highly ... and anatomic pathology. Owned by the University ... than half of the nation's university teaching ...
Medicine Products: