Featured Research

from universities, journals, and other organizations

Quick Tests For Fatal Diseases Possible With New Sensor

Date:
April 29, 1999
Source:
University Of Toronto
Summary:
A new DNA hybridization detection system developed at the University of Toronto holds the promise of quick screening for life-threatening fungal and bacterial infections, and diseases such as hepatitis or AIDS.

New advances in biosensor technology hold the promise of quick screening for life-threatening fungal and bacterial infections, and diseases such as hepatitis or AIDS.

Professor Ulrich Krull's new DNA hybridization detection system combines the precision of DNA chemistry with the speed of fibre optics to provide on-the-spot testing for organic molecules. "Most existing equipment needs long periods of time to work, but we can achieve a determination in seconds," says Krull, associate dean of sciences at the University of Toronto at Mississauga.

Biosensors use actual organic molecules to detect reactions and convert them to a signal that humans can read quickly. Krull's experiments involve attaching strands of DNA, the molecular basis of life, directly to a fibre optic surface. The strands bind to a specific DNA or RNA sequence the sensor is set to look for, and the resulting chemical changes are detected via the optical fibre.

One application Krull has tested successfully in the lab involves rapid screening for genetic material associated with fast-moving fungal infections, a leading cause of death in individuals with weakened immune systems. Similar technology could be the foundation for disposable diagnostic devices that would make screening for strep infections, hepatitis or AIDS as easy as current home pregnancy tests, says Krull, who also holds the university's Astra Pharma Chair in Biotechnology.

The hybridization detection system is currently being developed by FONA Technologies of Mississauga.

CONTACT: Bruce Rolston
U of T Public Affairs
(416) 978-6974
e-mail: bruce.rolston@utoronto.ca


Story Source:

The above story is based on materials provided by University Of Toronto. Note: Materials may be edited for content and length.


Cite This Page:

University Of Toronto. "Quick Tests For Fatal Diseases Possible With New Sensor." ScienceDaily. ScienceDaily, 29 April 1999. <www.sciencedaily.com/releases/1999/04/990427133411.htm>.
University Of Toronto. (1999, April 29). Quick Tests For Fatal Diseases Possible With New Sensor. ScienceDaily. Retrieved July 23, 2014 from www.sciencedaily.com/releases/1999/04/990427133411.htm
University Of Toronto. "Quick Tests For Fatal Diseases Possible With New Sensor." ScienceDaily. www.sciencedaily.com/releases/1999/04/990427133411.htm (accessed July 23, 2014).

Share This




More Health & Medicine News

Wednesday, July 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Idaho Boy Helps Brother With Disabilities Complete Triathlon

Idaho Boy Helps Brother With Disabilities Complete Triathlon

Newsy (July 23, 2014) An 8-year-old boy helped his younger brother, who has a rare genetic condition that's confined him to a wheelchair, finish a triathlon. Video provided by Newsy
Powered by NewsLook.com
Thousands Who Can't Afford Medical Care Flock to Free US Clinic

Thousands Who Can't Afford Medical Care Flock to Free US Clinic

AFP (July 23, 2014) America may be the world’s richest country, but in terms of healthcare, the World Health Organisation ranks it 37th. Thousands turned out for a free clinic run by "Remote Area Medical" with a visit from the Governor of Virginia. Duration: 2:40 Video provided by AFP
Powered by NewsLook.com
Stone Fruit Listeria Scare Causes Sweeping Recall

Stone Fruit Listeria Scare Causes Sweeping Recall

Newsy (July 22, 2014) The Wawona Packing Company has issued a voluntary recall on the stone fruit it distributes due to a possible Listeria outbreak. Video provided by Newsy
Powered by NewsLook.com
Huge Schizophrenia Study Finds Dozens Of New Genetic Causes

Huge Schizophrenia Study Finds Dozens Of New Genetic Causes

Newsy (July 22, 2014) The 83 new genetic markers could open dozens of new avenues for schizophrenia treatment research. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins