Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > News > Foiled plans might or might not be good

November 22nd, 2010

Foiled plans might or might not be good

Abstract:
Aluminum foil has long held its own as a barrier material, but there are competitors.

Nano-films

For the past several years, nanotechnology has been evaluated for its potential as a type of "smart packaging." It involves platelets so small that the unit of measure is the nanometer (one-billionth of a meter); hence, the platelets are as small as molecules, sometimes smaller. The composition of the platelets is mineral, clay, for example. But rather than being deposited on the film's surface the platelets are embedded throughout the film's thickness. The result is supposed to be an increased barrier to gases and moisture. Those molecules can't permeate through the layered platelets, necessitating that the molecules travel around and between. The winding path can amount to a distance that's multiple times greater than the thickness of the film. That being as it is, permeation is not prevented; rather, permeation is slowed. That pertains to permeation into as well as out of the packaging. Sufficient? Depends on how long the barrier is needed. Furthermore, nano-platelets typically don't render a film opaque, a decided disadvantage if barrier against light is required.

There are some high hurdles to be cleared before nanotechnology fulfills its potential regarding barrier films. One is technological: the need for greater control over the patterns in which the platelets are aligned and layered. Another is social: the need for greater knowledge about the potential effects of nano-particles on human health.

Source:
packworld.com

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

NMTI announces breakthrough solutions for HAMR nanoantenna for next-generation ultra-high density magnetic storage November 21st, 2014

Leica Microsystems Presents Universal Hybrid Detector for Single Molecule Detection and Imaging at SfN and ASCB: Leica HyD SMD - the Optimal Detector for Precise and Reliable SMD data November 20th, 2014

Silver Nanoparticles Produced in Iran from Forest Plants Extract November 20th, 2014

Nano Sorbents Able to Remove Pollutions Caused by Oil Derivatives November 20th, 2014

Possible Futures

A novel method for identifying the body’s ‘noisiest’ networks November 19th, 2014

Researchers discern the shapes of high-order Brownian motions November 17th, 2014

VDMA Electronics Production Equipment: Growth track for 2014 and 2015 confirmed: Business climate survey shows robust industry sector November 14th, 2014

Open Materials Development Will Be Key for HP's Success in 3D Printing: HP can make a big splash in 3D printing, but it needs to shore up technology claims and avoid the temptation of the razor/razor blade business model in order to flourish November 11th, 2014

Food/Agriculture/Supplements

Production of Biodegradable Nanocomposites of Wheat Gluten in Iran November 6th, 2014

New tool could help reshape the limits of synthetic biology: The 'telomerator' reshapes synthetic yeast chromosome into more flexible, realistic form, redefining what geneticists can build November 3rd, 2014

Nanoparticles Display Ability to Improve Efficiency of Filters October 28th, 2014

Smallest world record has 'endless possibilities' for bio-nanotechnology October 8th, 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