Navigation Links
Iowa State University researcher looks to use nanoparticles for food safety
Date:4/10/2008

Ames, Iowa Byron Brehm-Stecher, assistant professor in food science and human nutrition, has some big ideas for his work with tiny particles. His latest research project will allow him to study the potential of using silver nanoparticles to improve the safety of the worlds food supply.

Although the particles cant be added directly to foods, the ultimate goal of this project is to develop food-related applications such as microbe-resistant fabrics or non-biofouling surfaces. The research, he said, could have a large impact on the safety of foods.

Through our work, we hope to gain a greater understanding of how these materials affect microbial structure or function, Brehm-Stecher said. This may lead to new approaches for killing foodborne pathogens and enhancing food safety. For example, silver nanoparticles are already being used in food packaging to soak up the plant-ripening hormone ethylene, extending the shelf life of fruits. The science is at a basic point right now, but we expect that it will translate into something more applied in the future. Im looking forward to extending this as far as the questions we have will take us.

Brehm-Stecher said they hope to learn more about how silver nanoparticles exert their antimicrobial activities by testing QSI-Nano Silver for its ability to interact with microbial cells.

QSI-Nano Silver is prepared from pure metallic silver that is vaporized in the presence of an inert gas, and then condensed under controlled conditions to form discrete particles smaller than 100 nanometers in diameter. A nanometer is a billionth of a meter. You can get an idea of the size difference between a nanometer and a meter by imagining something the size of a marble sitting next to an object the size of the Earth.

One of the things we do in my lab is to develop multi-ingredient antimicrobial mixtures. I was interested in finding antimicrobials that would be physically compatible with other compounds that were working with, Brehm-Stecher said. It looked like the nanoparticles could provide us with a good solution. I approached QuantumSphere and they were open to sending us compounds and working with us. Were interested in many of the same things. Its a good relationship.

Brehm-Stecher started work on the project in January 2008. He and graduate assistant Heidi Weinkauf have had good results so far.

Its been very fulfilling and exciting to be able to design experiments with Heidi and see what happens, Brehm-Stecher said. The results so far have met and surpassed our expectations, and were only a couple of months into the grant. Every experiment, whether it turns out as expected or not, points us in a new direction and we are now getting some fascinating clues about how nanosilver works as an antimicrobial.

Scientists face many challenges when working with unfamiliar materials. Because Brehm-Stecher and Weinkauf were new to nanoparticle research, they collaborated with QuantumSphere chief scientist Doug Carpenter early on to optimize their test methods and begin generating data.


'/>"/>

Contact: Byron Brehm-Stecher
byron@iastate.edu
515-294-6469
Iowa State University
Source:Eurekalert

Related medicine news :

1. Open Letter to Presidential Candidates on State Health Care Reform
2. Massachusetts Affiliate of Susan G. Komen for the Cure(R) to Challenge States Leaders to Strengthen Breast Cancer Services
3. CamelBak(R) CEO Statement on BPA and Plastic Re-Usable Water Bottles
4. Statement by the American Egg Board and Egg Nutrition Center on AJCN Study on Egg Consumption
5. Paro, the Baby Seal Service Robot From Japan, Finds a New Home in the United States With Help From JETRO
6. Three New States Join Efforts to Screen Newborns for Cystic Fibrosis
7. Scientists Block Prostate Cancer Cells Spread
8. Blocking the effect of inflammation-causing cells lowered prostate cancer cells invasion
9. Statement of SEIU Spokesperson Andrew McDonald Responding to Announcement of Lawsuit by SEIU UHW-W
10. Lierac Paris Expands in the United States at Healthy Skincare Centers at CVS/pharmacy
11. Microwave treatments for enlarged prostate cause blood pressure surges
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/25/2016)... , ... June 25, 2016 , ... Austin residents seeking ... American College of Mohs Surgery and to Dr. Russell Peckham for medical and surgical ... effective treatment for skin cancer. The selective fellowship in Mohs Micrographic Surgery completed by ...
(Date:6/25/2016)... Lewisville, TX (PRWEB) , ... June 25, 2016 , ... ... in the United States, named Dr. Sesan Ogunleye, as the Medical Director of its ... be the facility Medical Director of our new Mesquite location,” said Dr. James M. ...
(Date:6/25/2016)... ... June 25, 2016 , ... On Friday, June 10, Van ... Wellness at Work award to iHire in recognition of their exemplary accomplishments in worksite ... 7th annual Maryland Workplace Health & Wellness Symposium at the BWI Marriott in Linthicum ...
(Date:6/24/2016)... ... June 24, 2016 , ... Those who have experienced traumatic events may suffer ... unhealthy avenues, such as drug or alcohol abuse, as a coping mechanism. To avoid ... healthy coping following a traumatic event. , Trauma sufferers tend to feel a range ...
(Date:6/24/2016)... ... 2016 , ... The Pulmonary Hypertension Association (PHA) learned during ... two significant new grants to support its work to advance research and patient ... recognizing patients, medical professionals and scientists for their work in fighting pulmonary hypertension ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... , June 23, 2016 ... CAPR ), a biotechnology company focused on ... today announced that patient enrollment in its ongoing ... Duchenne) has exceeded 50% of its 24-patient target. ... in the third quarter of 2016, and to ...
(Date:6/23/2016)... June 23, 2016 , , ... July 7, 2016 , , , , LOCATION: , , ... , , , EXPERT PANELISTS:  , , , Frost & ... Analyst, Christi Bird; Senior Industry Analyst, Divyaa Ravishankar and Unmesh Lal, ... The global pharmaceutical industry is witnessing an exceptional era. Several new ...
(Date:6/23/2016)... Revolutionary technology includes multi-speaker listening to conquer ... in advanced audiology and hearing aid technology, has today ... world,s first internet connected hearing aid that opens up ...      (Photo: http://photos.prnewswire.com/prnh/20160622/382240 ) , ... , TwinLink™ - the first dual communication ...
Breaking Medicine Technology: