Navigation Links
Biodegradable napkin -- featuring sensitive nanofibers -- may quickly detect biohazards

Detecting bacteria, viruses and other dangerous substances in hospitals, airplanes and other commonly contaminated places could soon be as easy as wiping a napkin or paper towel across a surface, says a researcher from Cornell University.

"It's very inexpensive, it wouldn't require that someone be highly trained to use it, and it could be activated for whatever you want to find," said Margaret Frey, the Lois and Mel Tukman Assistant Professor of Fiber Science and Apparel Design at Cornell. "So if you're working in a meat-packing plant, for instance, you could swipe it across some hamburger and quickly and easily detect E. coli bacteria." She reported on the research at the American Chemical Society's national meeting today (Sept. 11) in San Francisco.

Once fully developed, the biodegradable absorbent wipe would contain nanofibers containing antibodies to numerous biohazards and chemicals and would signal by changing color or through another effect when the antibodies attached to their targets. Users would simply wipe the napkin across a surface; if a biohazard were detected, the surface could be disinfected and retested with another napkin to be sure it was no longer contaminated.

In work conducted with Yong Joo, assistant professor of chemical and biomolecular engineering, and Antje Baeumner, associate professor of biological and environmental engineering, both at Cornell, Frey developed nanofibers with platforms made of biotin, a part of the B vitamin complex, and the protein streptavidin, which can hold the antibodies. Composed of a polymer compound made from corn, the nanofibers could be incorporated into conventional paper products to keep costs low. Nanofibers, with diameters near 100 nanometers (a nanometer is one-billionth of a meter, or about three times the diameter of an atom), provide extremely large surface areas for sensing and increased absorbency compared with conventional fibers.

"The fabric basically acts as a spong e that you can use to dip in a liquid or wipe across a surface," Frey said. "As you do that, antibodies in the fabric are going to selectively latch onto whatever pathogen that they match. Using this method we should, in theory, be able to quickly activate the fabric to detect whatever is the hazard of the week, whether it is bird flu, mad cow disease or anthrax."

Frey and her colleagues are still working on ways, such as a color change, for the fabric to signal that it has identified the contaminant.

"We're probably still a few years away from having this ready for the real world," Frey said, "but I really believe there is a place for this type of product that can be used by people with limited training to provide a fast indication of whether a biohazard is present."


'"/>

Source:Cornell University News Service


Related biology news :

1. Biodegradable microspheres deliver time release vaccines, stimulate different immune response
2. Researchers discover way to make cells in the eye sensitive to light
3. Quantum dots provide a faster, more sensitive method for detecting respiratory viral infections
4. Nanospheres that block pain of sensitive teeth
5. Obese people are more sensitive to pain, suggests study
6. Light-sensitive photoswitches could restore sight to those with macular degeneration
7. Molecular signature may identify cisplatin-sensitive breast tumors
8. To translate touch, the brain can quickly rearrange its sense of the body
9. Gene patterns in white blood cells quickly diagnose disease
10. Animals can change genes quickly to keep up with viral ingenuity
11. New MRI technique quickly builds 3-D images of knees
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/21/2016)... , January 21, 2016 ... to a new market research report "Emotion Detection and ... Others), Software Tools (Facial Expression, Voice Recognition and ... - Global forecast to 2020", published by MarketsandMarkets, ... expected to reach USD 22.65 Billion by 2020, ...
(Date:1/18/2016)... Calif. , Jan. 18, 2016  Extenua ... software that simplifies the use and access of ... and go-to-market partnership with American Cyber.  ... brings extensive experience leading transformational C4ISR and Cyber ... and integrating the latest proven technology solutions," said ...
(Date:1/11/2016)... 11, 2016 Synaptics Incorporated (NASDAQ: SYNA ... announced that its ClearPad ® TouchView ™ ... two separate categories in the 8 th Annual ... Technology Breakthrough. The Synaptics ® TDDI solution enables ... chain, thinner devices, brighter displays and borderless designs. ...
Breaking Biology News(10 mins):
(Date:2/4/2016)... Feb. 4, 2016  CytoSorbents Corporation (NASDAQ: ... its flagship CytoSorb® blood filter to treat deadly ... the world, announced that CEO Dr. Phillip ... Source Capital Group,s 2016 Disruptive Growth & Healthcare ... company.  Conference Presentation Details: ...
(Date:2/4/2016)... -- ContraVir Pharmaceuticals, Inc. (NASDAQ: CTRV ), a ... targeted antiviral therapies, announced today that it will present ... held February 8-9, 2016, at the Waldorf Astoria New ... Healthcare Conference, taking place in New York ... Sapirstein , Chief Executive Officer of ContraVir, will provide ...
(Date:2/4/2016)... ... 04, 2016 , ... Franz Inc. , an early ... has been recognized As “ Best in Semantic Web Technology - USA & ... America, it’s our priority to showcase prominent professionals who are excelling in their ...
(Date:2/3/2016)... SAN DIEGO , Feb. 3, 2016 /PRNewswire/ ... medicine company with the first pluripotent stem cell-derived ... 1 diabetes in clinical-stage development, today announced that ... Janssen Pharmaceutical Companies of Johnson & Johnson, have ... BetaLogics group into ViaCyte.  The agreement provides ViaCyte ...
Breaking Biology Technology: