Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

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

New, old science combine to make faster medical test: Nanoparticles and Faraday rotation allow faster diagnoses January 23rd, 2017

Traffic jam in empty space: New success for Konstanz physicists in studying the quantum vacuum January 22nd, 2017

A big nano boost for solar cells: Kyoto University and Osaka Gas effort doubles current efficiencies January 21st, 2017

New research helps to meet the challenges of nanotechnology: Research helps to make the most of nanoscale catalytic effects for nanotechnology January 20th, 2017

Discoveries

New, old science combine to make faster medical test: Nanoparticles and Faraday rotation allow faster diagnoses January 23rd, 2017

Traffic jam in empty space: New success for Konstanz physicists in studying the quantum vacuum January 22nd, 2017

A big nano boost for solar cells: Kyoto University and Osaka Gas effort doubles current efficiencies January 21st, 2017

New research helps to meet the challenges of nanotechnology: Research helps to make the most of nanoscale catalytic effects for nanotechnology January 20th, 2017

Announcements

New, old science combine to make faster medical test: Nanoparticles and Faraday rotation allow faster diagnoses January 23rd, 2017

Traffic jam in empty space: New success for Konstanz physicists in studying the quantum vacuum January 22nd, 2017

A big nano boost for solar cells: Kyoto University and Osaka Gas effort doubles current efficiencies January 21st, 2017

New research helps to meet the challenges of nanotechnology: Research helps to make the most of nanoscale catalytic effects for nanotechnology January 20th, 2017

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

New, old science combine to make faster medical test: Nanoparticles and Faraday rotation allow faster diagnoses January 23rd, 2017

Traffic jam in empty space: New success for Konstanz physicists in studying the quantum vacuum January 22nd, 2017

A big nano boost for solar cells: Kyoto University and Osaka Gas effort doubles current efficiencies January 21st, 2017

New research helps to meet the challenges of nanotechnology: Research helps to make the most of nanoscale catalytic effects for nanotechnology January 20th, 2017

Food/Agriculture/Supplements

PCATDES Starts Field Testing of Photocatalytic Reactors in South East Asia December 28th, 2016

News from Quorum: The Agricultural Research Service of the USDA uses a Quorum Cryo-SEM preparation system for the study of mites, ticks and other soft bodied organisms November 22nd, 2016

Water, water -- the two types of liquid water: Understanding water's behavior could help with Alzheimer's research November 11th, 2016

How nanoscience will improve our health and lives in the coming years: Targeted medicine deliveries and increased energy efficiency are just two of many ways October 26th, 2016

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