Nano Bugle

A window into applied science supported by INL

Apple iPhone apps put Nanotechnology in your pocket

The Project on Emerging Nanotechnologies (PEN), established in April 2005 as a partnership between the Woodrow Wilson International Center for Scholars and the Pew Charitable Trusts (Washington) has developed findNano, an application for Apple’s iPhone and iPod Touch that lets users discover and determine whether consumer products are nanotechnology-enabled ranging more than 1,000 different products from consumer electronics, toys or food to improved drug delivery systems.

This application takes as base, the PEN’s “Consumer Products Inventory”, which is one of the leading sources of information on manufacturer-identified nanotechnology consumer products around the world and through this new application becomes more accessible for today’s consumers.

Patrick Polischuk, Research Associate at PEN says: “This innovative tool satisfies the needs of citizen, scientists, tech-savvy consumers, and those who are merely curious about whether products contain nanomaterials.”

To help develop better estimates of the number of nano-based products in commerce, the iPhone app allows users to submit information on new products, including product name and where the product can be purchased. Using the built-in camera, iPhone users can even submit new nanotech product to be included in future inventory updates. This feature will help consumers, researchers, etc to determine how and where nanotechnologies are entering the marketplace.

findNano is available as a free download for the iPhone and iPod Touch, and can be found in the iTunes App Store.

April 20, 2011 Posted by | Nanobiology, Nanoelectronics, Nanofood, Nanomaterials, Nanomedicine, Nanooptics, Nanopackaging, Nanophotonic, Nanoproduction, Nanotester, Nanotextile | , , , , , | Leave a comment

Prolonging the Preservation of Fruit Using Silver Nanoparticles

A new research conducted at the Centro de Investigación en Ciencia Aplicada y Tecnología Aplicada, Unidad Legaria shows that silver nanoparticles retard the growth of fungal pathogens, keeping the fruits up to three times longer than normal.

In tests with papaya, the nanoparticles were able to inhibit the fungus Colletotrichum gloeosporioides which causes anthracnose disease whose symptoms appear only when the fruit reaches maturity. The nanoparticles were able to inhibit the fungus up to 90%.

Given that post-harvest losses in tropical fruits in the world vary from 10 to 80% depending on crop type and region, the work could mean a significant improvement in the marketing of these fruits.

October 14, 2009 Posted by | Nanofood | , | Leave a comment

Nanoparticles for Water Purification

Image obtained from tuvidasana.murke.net

Image obtained from tuvidasana.murke.net

A group of researchers from the Universidad Autónoma de Barcelona, Universidad de Poitiers, Pontificia Universidad Javeriana with support from Consejo Nacional de Ciencia y Tecnología of Mexico have developed a technique that completely eliminates toxic substances from the water in less than an hour.

The developed technology is based on the use of titanium oxide nanoparticles on glass surfaces or glass. These particles are subjected to high temperatures to adhere, after which, in the presence of sunlight or ultraviolet light, oxidizing species are produced that are capable of degrading organic material.

In a initial phase some mushrooms are used to transform the compunds to be elimitad by the nanoparticles.

September 30, 2009 Posted by | Nanofood | , , | Leave a comment

Carbon Nanotube Membranes for Water Purification

Image obtained from 1x.com

Image obtained from 1x.com

A spin-off from the Lawrence Livermore National Laboratory (LLNL), called Porifera, uses carbon nanotubes to develop membranes for water purification.

The nanotubes are arranged so that they are closely packed together in order that water flows through them as if traversing a pile of straws. The opening of the nanotubes is only a few nanometers, so that water molecules can pass through them, while bacteria, biological material and other impurities can not. Thus, the water obtained after passing through the nanotube is clean of impurities.

While traditional membranes in dirt are stored within the membrane, in these membranes such impurities are kept out of the nanotubes, facilitating cleaning.

Another possible application of such filters would be water desalination.

September 9, 2009 Posted by | Nanofood | , , | 1 Comment

Nanotechnology and Water Supply

Image obtained from 1x.com

Image obtained from 1x.com

The Brazilian Agricultural Research Corporation (Embrapa) is investigating the development of a system of nanofilters biodigestion for debugging the water supplying, with future possibilities of obtaining drinking water.

This work is part of the IBSA nanotechnology initiative, which is a program of research and development collaboration between the departments of Science and Technology from India, Brazil and South Africa

June 25, 2009 Posted by | Nanofood | , | Leave a comment