A 16-year old teenager from Connecticut has invented an express
test to detect the deadly Ebola virus in just 30 minutes at a cost of $25.
Olivia Hallisey’s breakthrough grabbed the top prize at the Google Science
Fair. Hallisey, a sophomore at Greenwich High School, has come up with
what she called a “novel, temperature-independent, rapid, simple and
inexpensive Ebola detection platform.”
“Current methods of Ebola detection utilize enzyme-linked
immunosorbent assay (“ELISA”) detection kits which cost approximately $1,00
each, require complex instrumentation, trained medical professionals to
administer, and up to 12 hours from testing to diagnosis. The kits require the
unbroken refrigeration of reagents from point of manufacture to point of use
(the “cold chain”), making the ability to diagnose in remote areas, where
refrigeration is often nonexistent or unreliable, highly problematic if not
impossible,” Hallisey explained
on her project’s website.
Unlike current Ebola detection methods, Hallisey’s test takes only
half an hour to show the Ebola virus and does not require any refrigeration.
While Olivia’s method is 25 times more expensive – $25 per test – it is also 24
times faster than the tests currently available. When it comes to Ebola,
minutes do matter. “It is estimated with early diagnosis and medical
treatment, Ebola fatality rates of up to 90% would decline by approximately 50
percent,” the teenager said.
Olivia
used silk fibers, which possess stabilizing properties, and current Ebola ELISA
reagents, taking all of the same components of a regular Ebola test –
antibodies and chemicals that cause the test to change colors if Ebola proteins
are present in a patient’s blood. “In this new device, that is stable and stored at room
temperature, 30µl drops of water were used to dissolve silk-embedded reagents,
initiating a timed-flow towards a center detection zone, where a positive
(colored) result confirmed the presence of 500pg/ml Ebola(+)control antigens,” Hallisey
wrote.
In order to confirm that her test is
capable of sustaining high temperatures, Hallisey tested the Ebola ELISA “in
a 96-wellplate format (A450nm) at 0-7days from initial mixing and dilutions.”
On Tuesday, Hallisey was awarded with a $50,000 scholarship for
her breakthrough as a prize at Google’s annual Science Fair, an online
competition for children between the ages of 13 and 18. The Connecticut
teenager was one of 22 young scientists from around the world who were showing
off their scientific projects.
The fifth Google
fair was also attended by Ahmed Mohamed, the 14-year-old Muslim boy from Texas
who became famous after being arrested for bringing a homemade digital clock to
school.
0 comments:
Post a Comment
Disclaimer: Opinions expressed in comments are those of the comment writers alone and does not reflect or represent the views of Bright Clement. info call or whatsapp +2348166575765