Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Zinc Oxide Nanoparticles Help Increasing Durability of Milk

Abstract:
Iranian researchers have studied the antibacterial effect of zinc oxide nanoparticles on various bacteria and added the nanoparticles to milk as antimicrobial agent to investigate the results.

Zinc Oxide Nanoparticles Help Increasing Durability of Milk

Tehran, Iran | Posted on December 21st, 2013

Results of this research will have applications in various medical industries, agriculture, foodstuff, water disinfection, packaging, pharmaceutics, and food production.

Nano-antibiotics are nanomaterials that in addition to having antimicrobial activity increase the effects of antibiotics. Their ability in controlling infection has been confirmed at laboratorial conditions and inside the body. Contrary to many antimicrobial agents that are currently being used in clinics, antimicrobial nanoparticles do not cause undesirable side-effects at milimolar dosage where they have antimicrobial effect.

According to Mir Hoseini, one of the researchers of the study, results showed that the antimicrobial effect of zinc oxide was higher on Gram-positive bacterium than on Gram-negative one. Zinc oxide nanoparticles are also able to stop the growth of Escherichia coli and Staphylococcus aureus in milk. However, the toxicity of nanoparticles is higher than the toxicity of the same material in larger scale, even for materials that have relatively low toxicity.

Zinc oxide nanoparticles eliminate microorganisms through various mechanisms. These oxide nanoparticles degrade the fat and protein in the bacterium cellular membrane. As a result, the cell content leaks and finally, it leads to the death of bacterium cells. In addition, the production of hydrogen peroxide and Zn+2 ions has been proposed as the key mechanism for the antibacterial effect of zinc oxide nanoparticles.

Generally speaking, it can be concluded that zinc oxide nanoparticles showed desirable antimicrobial activity against the microbes existing and being tested in milk and in the growth media.

Results of the research have been published in International Journal of Dairy Technology, vol. 66, issue 2, May 2013, pp. 291-295.

####

For more information, please click here

Copyright © Fars News Agency

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Iranian Researchers Present New Model to Strengthen Superconductivity at Higher Temperatures April 19th, 2014

Iranian Researchers Produce New Anti-Cancer Drug from Turmeric April 19th, 2014

'Exotic' material is like a switch when super thin April 18th, 2014

Innovative strategy to facilitate organ repair April 18th, 2014

Discoveries

Iranian Researchers Present New Model to Strengthen Superconductivity at Higher Temperatures April 19th, 2014

Iranian Researchers Produce New Anti-Cancer Drug from Turmeric April 19th, 2014

'Exotic' material is like a switch when super thin April 18th, 2014

Innovative strategy to facilitate organ repair April 18th, 2014

Announcements

Iranian Researchers Present New Model to Strengthen Superconductivity at Higher Temperatures April 19th, 2014

Iranian Researchers Produce New Anti-Cancer Drug from Turmeric April 19th, 2014

'Exotic' material is like a switch when super thin April 18th, 2014

Innovative strategy to facilitate organ repair April 18th, 2014

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals

Iranian Researchers Present New Model to Strengthen Superconductivity at Higher Temperatures April 19th, 2014

Iranian Researchers Produce New Anti-Cancer Drug from Turmeric April 19th, 2014

'Exotic' material is like a switch when super thin April 18th, 2014

Innovative strategy to facilitate organ repair April 18th, 2014

Food/Agriculture/Supplements

Biologists Develop Nanosensors to Visualize Movements and Distribution of Plant Stress Hormone April 15th, 2014

Good vibrations: Using light-heated water to deliver drugs - Researchers use near-infrared light to warm water-infused polymeric particles April 1st, 2014

Nanotube coating helps shrink mass spectrometers March 25th, 2014

Scientists develop world’s first light-activated antimicrobial surface that also works in the dark March 24th, 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