August 24, 2012
The newest material for building amazing tech is actually made of the oldest material for building: wood!
Nanocellulose is a new incredibly strong material made of wood and plant matter that has been turned to pulp and then reformed into tightly woven nanobits. Transparent and incredibly strong, the stuff is reportedly tougher than steel and extremely lightweight, which is why the U.S. military is already showing interest in the stuff. It also apparently conducts electricity well, meaning it could potentially be used for computing.
Extreme Tech reports that the first U.S. plant to make Nanocellulose, opened by the Forest Service in Madison, Wisconsin, has already received visits by executives from IBM and Lockheed Martin. It’s cheaply made and so safe that it could potentially be used in food. So while we’re waiting for our more natural McDonald’s shakes, we can daydream of the unthinkable: everlasting, lightweight furniture from Ikea.
Study Looks at Particles Used in Food
By Stephanie Strom
February 5, 2013
Nanomaterials, substances broken down by technology into molecule-size particles, are starting to enter the food chain through well-known food products and their packaging, but there is little acknowledgment by the companies using them, according to a new report from a nonprofit group that works to enhance corporate accountability.
Some companies may not even know whether nanomaterials are present in their products, the corporate accountability group As You Sow said.
“Only 14 said they don’t use nanomaterials, and of those only two had any policies on the use of nanomaterials,” said Andy Behar, chief executive of As You Sow. Various food companies have said they are interested in nanotechnology, which can help make products creamier without additional fat, intensify and improve flavors and brighten colors.
Their small size allows nanoparticles to go places in the body where larger particles cannot and enter cells. They have been found in the blood stream after ingestion and inhalation, and while research on their health effects is limited, studies have shown them to have deleterious effects on mice and cells.
“We’re not taking a no nano position,” Mr. Behar said. “We’re saying just show it’s safe before you put these things into food or food packaging.”
He noted that the European Union requires labeling of foods containing nanomaterials and that the European Food Safety Authority has published guidance for assessing nanomaterials in food and animal feed.
The Environmental Protection Agency is evaluating various nanoparticles used in consumer products, like sunscreens.
As You Sow tested 10 varieties of powdered doughnuts for the presence of nanoparticles. With the help of an independent lab, it found that Hostess Donettes and Dunkin’ Donuts Powdered Cake Donuts tested positive for the presence of titanium dioxide materials of less than 10 nanometers. Titanium dioxide is used to brighten white substances. The nano variety is under investigation by the E.P.A. Michelle King, a spokeswoman for Dunkin’ Donuts, said the company was working with its supplier to validate As You Sow’s findings. Hostess Brands went out of business during the test and closed its factories.