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:12/16/2016)...   IdentyTechSolutions America LLC , a leading ... and a cutting-edge manufacturer of software and hardware ... seamless, integrated solutions that comprise IDT biometric readers ... provide IdentyTech,s customers with combined physical identification and ... and theft. "We are proud to ...
(Date:12/15/2016)... 15, 2016 ... Research and Markets has announced the addition of the ... The report forecasts the global military biometrics market to grow ... The report has been prepared based on an in-depth market analysis with ... growth prospects over the coming years. The report also includes a discussion ...
(Date:12/8/2016)... -- Market Research Future published a half cooked research report on ... and Service Market is expected to grow over the CAGR of ... ... Mobile Biometric Security and Service Market is increasing ... authentication and security from unwanted cyber threats. The increasing use of ...
Breaking Biology News(10 mins):
(Date:1/20/2017)... , January 20, 2017 Stock-Callers.com ... conditions have influenced the most recent performances of select ... (NASDAQ: RGLS ), Abeona Therapeutics Inc. (NASDAQ: ... TBPH ), and Sage Therapeutics Inc. (NASDAQ: ... by Grand View Research, global Biotech market size is expected to ...
(Date:1/19/2017)... , Jan. 19, 2017  Market Research Future has a half ... for Liquid Biopsy is growing rapidly and expected to reach USD ... Market Highlights ... Global Liquid Biopsy Market has been assessed as a swiftly growing ... and boom in the coming future. There has been a tremendous ...
(Date:1/19/2017)... ... 19, 2017 , ... November Research Group, LLC, a global ... device manufacturers and regulators, is proud to announce the worldwide release of PRIMO ... to provide product vigilance departments with the flexibility and ease of use of ...
(Date:1/19/2017)... ... January 18, 2017 , ... ... innovators, engineers, and scientists from around the world, was today awarded the "Best ... program is based entirely on merit and decided upon by a dedicated team ...
Breaking Biology Technology: