Selective gas sensing with pristine graphene

It has been known for some time that graphene can be used for detection of individual gas molecules adsorbed on its surface. Back in 2007, the discoverers of graphene, Andre Geim and Kostya Novoselov, already reported a graphene sensor that can detect just a single molecule of a toxic gas  In that work, the researchers have shown that gas molecules gently attach themselves to graphene without disrupting its chicken wire structure. They only add or take away electrons from graphene, which results in notable changes in its electrical conductance.


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High-performing supercapacitor electrodes made from self-organizing cobalt oxide nanowires

Commercially available supercapacitors store energy in two closely spaced layers with opposing charges and offer fast charge/discharge rates and the ability to sustain millions of cycles. Researchers have come up with various electrode materials – even as exotic as eggshell membranes – to improve the performance of supercapacitors, focussing mostly on porous carbon due to its high surface areas, tunable structures, good conductivities, and low cost.


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How buckyballs hurt cells

Using computer simulations, University of Calgary biochemist Peter Tieleman, post-doctoral fellow Luca Monticelli and colleagues modeled the interaction between carbon-60 molecules and cell membranes and found that the particles are able to enter cells by permeating their membranes without causing mechanical damage. Their results are published in the current Advance Online Publication of Nature Nanotechnology, the world’s leading nanotechnology journal.

“Buckyballs are already being made on a commercial scale for use in coatings and materials but we have not determined their toxicity,” said Tieleman, a Senior Scholar of the Alberta Heritage Foundation for Medical Research who specializes in membrane biophysics and biocomputing. “There are studies showing that they can cross the blood-brain barrier and alter cell functions, which raises a lot of questions about their toxicity and what impact they may have if released into the environment.”

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With Magnetic Nanoparticles, Scientists Remotely Control Neurons and Animal Behavior

Clusters of heated, magnetic nanoparticles targeted to cell membranes can remotely control ion channels, neurons and even animal behavior, according to a paper published by University at Buffalo physicists in Nature Nanotechnology.

"By developing a method that allows us to use magnetic fields to stimulate cells both in vitro and in vivo, this research will help us unravel the signaling networks that control animal behavior," says Arnd Pralle, PhD, assistant professor of physics in the UB College of Arts and Sciences and senior/corresponding author on the paper.

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Military nanotechnology - how worried should we be?

Most of the countries doesn't invest directly in military nanotechnology, most of them just invest in researches in other areas of nanotechnology such as electronics or materials.
But the USA DoD its investing in nanotechnology for defense, trying as always to be the most advanced country in military equipment.

The problem here its that this could affect the civilians, as we all now use have different military spots around cities and countries, most of the time military test involve explosions, imagine tons of nano particles flying around with this explosion polluting the air, the water and the fields, tons of this nano particles with unknown risks and affections to the human body

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Article By Michael Berger, Copyright 2006 Nanowerk LLC

Nano-Enhanced Hybrid Armor

 SouthWest NanoTechnologies, Inc. a leader in SWCNT's production its contributing in the enhancement and enforcement of creating a new armor, with less weight more mobility and with a improved resistance to impact, this for body and vehicle armor.


It've been tested against the most powerful small weapons, “Once it has passed testing, the armor will provide U.S. military and law enforcement personnel better, lighter and less costly armor than has been available before,” explains Kyle Kissell Ph.D, and RSI’s Technical Advisor. “NanoRidge selected SWeNT’s SMW100 after evaluating many different products and believes that its characteristics and commercial scalability will meet the needs of our nation’s protectors while saving lives.”

Source: DefenseReview.com (http://s.tt/13fjN)

Alien nanotechnology

Many reports claim Earth has been visited by intelligent extraterrestrials, but no solid evidence has come forth. It appears that some of the people that dwell on this planet are either nuts or something very strange is going on.
If earth is being used as a type of intergalactic documentary by extraterrestrials, one can imagine that a type of Star Trek Prime Directive is in place. So technological ideas should be thought up by Homo sapiens and not given by some alien race.


This is a very questionable site its a personal webpage with no real sources or fundamental sources, but if you like conspirational theories and ufo's its a "good" opinion about this


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Nanotubes sniff out rotting fruit, your dorm room might be next

One of the most used nano products and investigations are the nanotubes, and now in the MIT found one new property, odor absorbance and odor neutralizing, (for rotten food) giving us an improvement in this area.

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Jewel-like Nanowires Pretty As Well As Efficient

Engineers at Stanford University have found a way to add these delicate, bulbous decorations to nanowires that are about 1/1000th the width of a human hair. The decorations are could be important to creating more efficient batteries, solar cells and other nanotechnology-enabled inventions in the future. Several research groups have come up with different ways to add tiny hairs, branches, bumps and folds to nanowires. But the new Stanford method is simple, works for wires made of many different materials and loads up the wires with an extra dose of decorations, according to a paper the researchers published April 11 in the journal Nano Letters. 


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Microreactor speeds nanotech particle production by 500 times

Engineers at Oregon State University have discovered a new method to speed the production rate of nanoparticles by 500 times, an advance that could play an important role in making nanotechnology products more commercially practical.

The approach uses an arrayed microchannel reactor and a "laminated architecture" in which many sheets, each with thousands of microchannels in them, are stacked in parallel to provide a high volume of production and excellent control of the processes involved.

Applications could be possible in improved sensors, medical imaging, electronics, and even solar energy or biomedical uses when the same strategy is applied to abundant materials such as copper, zinc or tin.

A patent has been applied for, university officials say. The work, just published in the journal Nanotechnology, was done in the research group of Brian Paul, a professor in the OSU School of Mechanical, Industrial and Manufacturing Engineering.

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the link for more information in the source its down but its saying that this information comes from the university of oregon then it should be real information if it wasn't it could involve legal problems with the publisher of the article