Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > News > Nanotechnology improves food safety by detecting prions

October 30th, 2008

Nanotechnology improves food safety by detecting prions

Abstract:
Mad cow disease is a fatal neurodegenerative condition in cattle that is related to the human form of a disease that has caused the deaths of nearly 200 people worldwide. Currently, testing for this disease in cattle is a lengthy process that only occasionally results in a correct diagnosis.

With funding from USDA's Cooperative State Research, Education, and Extension Service (CSREES) National Research Initiative (NRI), scientists in New York created a new device that may provide a faster, easier, and more reliable way to test for mad cow disease, also known as bovine spongiform encephalopathy (BSE).

This new tool targets prions, which are the cause of BSE. Prions are abnormally structured proteins that convert normal proteins into an abnormal form. Prions are responsible for forms of the neurodegenerative diseases, such as BSE in cattle, scrapie in sheep, and Creutzfeldt-Jakob disease in humans. If often takes years before the symptoms arise that indicate the disease is present.

Harold Craighead and colleagues at Cornell University have developed nanoscale resonators, which are tiny devices that function like tuning forks by changing pitch with increased mass.

Craighead's group, in collaboration with Richard Montagna at Innovative Biotechnologies International, Inc., modeled the device after a similar idea used to detect bacterial pathogens. When prions bind to the resonator's silicon sensor, it changes the vibrational resonant frequency of the device. In experimental trials, the sensor detected prions at concentrations as low as two nanograms per milliliter, the smallest levels measured to date.

Source:
farmtalknewspaper.com

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

New solar power material converts 90 percent of captured light into heat: SunShot Project aims to make solar cost competitive October 29th, 2014

Tiny carbon nanotube pores make big impact October 29th, 2014

Microrockets fueled by water neutralize chemical and biological warfare agents October 29th, 2014

Nanosafety research – there’s room for improvement October 29th, 2014

Nanomedicine

'Electronic skin' could improve early breast cancer detection October 29th, 2014

Tiny carbon nanotube pores make big impact October 29th, 2014

Molecular beacons shine light on how cells 'crawl' October 27th, 2014

New nanodevice to improve cancer treatment monitoring October 27th, 2014

Announcements

New solar power material converts 90 percent of captured light into heat: SunShot Project aims to make solar cost competitive October 29th, 2014

Tiny carbon nanotube pores make big impact October 29th, 2014

Microrockets fueled by water neutralize chemical and biological warfare agents October 29th, 2014

Nanosafety research – there’s room for improvement October 29th, 2014

Food/Agriculture/Supplements

Nanoparticles Display Ability to Improve Efficiency of Filters October 28th, 2014

Smallest world record has 'endless possibilities' for bio-nanotechnology October 8th, 2014

Simple Detection of Toxic Compounds in Dairy Products October 6th, 2014

Iranian Scientists Separate Zinc Ion at Low Concentrations September 20th, 2014

NanoNews-Digest
The latest news from around the world, FREE





  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE