Navigation Links
Killer paper for next-generation food packaging
Date:2/16/2011

Scientists are reporting development and successful lab tests of "killer paper," a material intended for use as a new food packaging material that helps preserve foods by fighting the bacteria that cause spoilage. The paper, described in ACS's journal, Langmuir, contains a coating of silver nanoparticles, which are powerful anti-bacterial agents.

Aharon Gedanken and colleagues note that silver already finds wide use as a bacteria fighter in certain medicinal ointments, kitchen and bathroom surfaces, and even odor-resistant socks. Recently, scientists have been exploring the use of silver nanoparticles each 1/50,000 the width of a human hair as germ-fighting coatings for plastics, fabrics, and metals. Nanoparticles, which have a longer-lasting effect than larger silver particles, could help overcome the growing problem of antibiotic resistance, in which bacteria develop the ability to shrug-off existing antibiotics. Paper coated with silver nanoparticles could provide an alternative to common food preservation methods such as radiation, heat treatment, and low temperature storage, they note. However, producing "killer paper" suitable for commercial use has proven difficult.

The scientists describe development of an effective, long-lasting method for depositing silver nanoparticles on the surface of paper that involves ultrasound, or the use of high frequency sound waves. The coated paper showed potent antibacterial activity against E. coli and S. aureus, two causes of bacterial food poisoning, killing all of the bacteria in just three hours. This suggests its potential application as a food packaging material for promoting longer shelf life, they note.


'/>"/>

Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society
Source:Eurekalert

Page: 1

Related biology news :

1. Monitoring killer mice from space
2. Killer paper for next-generation food packaging
3. Virus killer gets supercharged
4. Battling a bat killer
5. Ants found to use multiple antibiotics as weed killers
6. Experts identify biological control to contain fungus killer in Kenyas maize supply
7. Plant disease -- more than a crop killer
8. Policy unveiled to combat diarrheal disease, a killer of Kenyan children
9. Light activated warhead turns modest molecules into super protein killers
10. Climate may keep beautiful killer plant in check
11. Killer catfish? Venomous species surprisingly common, study finds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/21/2014)... finding that has implications for life in other extreme ... solar system, LSU Associate Professor of Biological Sciences Brent ... Foundation, or NSF, this week published a paper confirming ... lies 800 meters (2600 feet) beneath the surface of ... Given that more than 400 subglacial lakes and numerous ...
(Date:8/21/2014)... Saturday to Wednesday, Oct. 18-22, 2014 , ... Harbor Drive, San Diego, CA 92101 , ... other presentations of the latest research in human ... session featuring high-scoring abstracts on rare genetic variants ... cancers, and treatment for sun sensitivity (Saturday, Oct. ...
(Date:8/21/2014)... of researchers at Louisiana Tech University has ... consumer-grade 3D printers and materials to fabricate ... and chemotherapeutic compounds for targeted drug delivery. ... and research faculty from Louisiana Tech,s biomedical ... create filament extruders that can make medical-quality ...
Breaking Biology News(10 mins):800 meters beneath Antarctic ice sheet, subglacial lake holds viable microbial ecosystems 2800 meters beneath Antarctic ice sheet, subglacial lake holds viable microbial ecosystems 3800 meters beneath Antarctic ice sheet, subglacial lake holds viable microbial ecosystems 4American Society of Human Genetics 2014 Annual Meeting 2Louisiana Tech University researchers use 3D printers to create custom medical implants 2Louisiana Tech University researchers use 3D printers to create custom medical implants 3
... The notion of transplanting adult stem cells to treat or ... toward becoming a reality. In a study published today ... have demonstrated, for the first time, the ability to create ... the eye cells that die and cause loss of sight. ...
... Conservation Society and the State Institute of Animal Health (IAGRO) ... the first health assessments of white-lipped peccaries (medium-sized pig-like animals) ... the impact of Leptospirosis a zoonotic bacteria that affects ... and livestock. The studyconducted between 2003 and 2005 ...
... Exposure to alcohol in the womb doesn,t affect all fetuses ... give birth to a child with physical, behavioral or learning ... another woman who also drinks has a child without these ... by the mother to her son, according to new Northwestern ...
Cached Biology News:Stem cell therapy for age-related macular degeneration -- a step closer to reality 2Monitoring peccaries in Brazil benefits wildlife, local communities and food security 2Monitoring peccaries in Brazil benefits wildlife, local communities and food security 3Why some children are harmed by mother's alcohol, but others aren't 2
(Date:8/22/2014)... Research and Markets has announced the addition ... Reagents (Cloning, Epigenetics, PCR, Restriction Digestion, Sequencing) Market - ... The global molecular biology enzymes market was ... to grow at a CAGR of 13.74% to reach ... reagents find applications in a large number of fields ...
(Date:8/21/2014)... Aug. 21, 2014  BioSpecifics Technologies Corp. (NASDAQ: ... first in class collagenase-based products marketed as XIAFLEX ... the U.S. and XIAPEX ® in the ... a randomized, double-blind Phase 2a study of CCH ... fibrosclerotic panniculopathy. The results showed that all three ...
(Date:8/21/2014)... , August 21, 2014 ... ) has announced the addition of the  ... to their offering.       (Logo: ... hormone therapy, is a means of replacing ... by the body. This type of therapy ...
(Date:8/21/2014)... , Aug. 21, 2014 Mathematic studies at the ... University , and funded by the Jeffrey Epstein VI ... tumors can be visually identified for elimination. These aggressive cells ... study, which shows a topological map of what to look ... cancer research, for while tumor cells can be extracted from ...
Breaking Biology Technology:Global Molecular Biology Enzymes, Kits, & Reagents (Cloning, Epigenetics, PCR, Restriction Digestion, Sequencing) Market - Forecast to 2018 2Global Molecular Biology Enzymes, Kits, & Reagents (Cloning, Epigenetics, PCR, Restriction Digestion, Sequencing) Market - Forecast to 2018 3BioSpecifics Technologies Corp. Announces Positive Data from Phase 2a Study of CCH for Treatment of Cellulite 2BioSpecifics Technologies Corp. Announces Positive Data from Phase 2a Study of CCH for Treatment of Cellulite 3BioSpecifics Technologies Corp. Announces Positive Data from Phase 2a Study of CCH for Treatment of Cellulite 4BioSpecifics Technologies Corp. Announces Positive Data from Phase 2a Study of CCH for Treatment of Cellulite 5Global Hormone Replacement Therapy Market 2014-2018: Key Vendors are Actavis, Bayer, Merck & Co, Novartis and Novo Nordisk 2Science Power Jeffrey Epstein and Harvard University Fund Project to Visually Stop Tumor Growth 2
... developer to describe a Web site, youre likely to learn about ... youre likely to learn a lot about pinball. , ,A pinball ... works not the mechanical side of working that involves ASP, ... attracts and retains customers. By thinking of the Internet as a ...
... putting their state into further debt to fund ... California voters approved Proposition 71, which will provide ... decade. , ,The proposition, which was endorsed by ... California Institute for Regenerative Medicine. The institute will ...
... labs at the research park. An investment of $8.5 ... niche-market biotech company to Wisconsin, where it will inhabit brand-new ... ,The company is targeting a type of debilitating genetic disease ... new technique. , , Symbiontics, Inc. , which drew about ...
Cached Biology Technology:My 50 cents: Web sites and pinball machines 2My 50 cents: Web sites and pinball machines 3My 50 cents: Web sites and pinball machines 4Californians: Stem cells important enough to go into debt for 2Wisconsin VCs draw Missouri biotech firm to state 2Wisconsin VCs draw Missouri biotech firm to state 3Wisconsin VCs draw Missouri biotech firm to state 4
1000X solution used for inducing CopyControl™ based vectors to high copy numbers...
Donor feline serum and plasma...
Request Info...
8 different frozen tissues are mounted on positively charged glass slides...
Biology Products: