X-Message-Number: 28279
From: "Gina Miller" <>
References: <>
Subject: The Nanogirl News~
Date: Wed, 2 Aug 2006 15:27:36 -0700

Nanogirl News
August 2, 2006

Carbon nanotubes offer 'green' technology for perchlorate removal. Researchers 
at Pacific Northwest National Laboratory have demonstrated a new, 
environmentally friendly process for treating water contaminated by perchlorate,
a toxic chemical that has been found in drinking water in 35 states. 
(Physorg 7.25.06) http://www.physorg.com/news73064933.html

Living with Nanotubes. Carbon nanotubes are stronger than steel and 50,000 times
finer than human hair. Unfortunately they kill cells, which discourages 
researchers who'd like to use them to diagnose and treat disease. Now scientists
have created a mimic of natural mucin that can make carbon nanotubes safe for 
living things. (Berkeley Lab 7.26.06) 

Nano World: Nanofibers for heart cells. The heart function of rats following 
heart attacks can be improved using heart cells wrapped in organic fibers only 
nanometers or billionths of a meter long that are impregnated with growth 
hormones, experts tell UPI's Nano World. (Physorg 5.12.06)

Nanotechnology being used to improve biocompatibility of human prosthetics and 
implants. As populations of the world age the current trend is that people are 
not slowing down in their later years. The desire for increased activity among 
the elderly also means increased demands on medical researchers to come up with 
better ways to keep them active. (A2Z 8.2.06) 

Gold nanoparticles could improve antisense cancer drugs. In the fight against 
cancer, antisense drugs, which prevent genes from producing harmful proteins 
such as those that cause cancer, have the promise to be more effective than 
conventional drugs, but the pace of development of these new drugs has been 
slow. Using gold nanoparticles combined with DNA, scientists at Northwestern 
University now have demonstrated a new method for developing antisense drugs 
that outperform conventional antisense agents. The findings will be published 
May 19 in the journal Science. (EurekAlert 5.18.06)

CMU professor says nanotechnology study may lead to tinier computers. Ever had 
the urge to slip your 500-gigabyte desktop computer into your back pocket? 
Koblar Alan Jackson is making no promises, but the Central Michigan University 
professor's research in nanophotonics may help lay the groundwork for future 
generations of computer downsizing. Think technology that one day could make the
iPod's microcircuits resemble the oversize vacuum tubes in your grandfather's 
TV. (CMU 8.2.06)

World's tiniest test tubes get teensiest corks. Now all they need is a really, 
really small corkscrew. Like Lilliputian chemists, scientists have found a way 
to "cork" infinitesimally small nano test tubes. The goal is a better way to 
deliver drugs, for example, for cancer treatment. Scientists want to fill the 
teeny tubes with drugs and inject them into the body, where they will seek 
diseased or cancerous cells, uncork and spill their therapeutic contents in the 
right place. 
(nanotechwire 5.10.06) http://www.nanotechwire.com/news.asp?nid=3291

Sandia work launched on space shuttle shows live cells influence growth of 
nanostructures. Implications for sensors, tuberculosis modeling, cell 
preparation, surgical implant safety. Far above the heads of Earthlings, arrays 
of single-cell creatures are circling Earth in nanostructures. The sample 
devices are riding on the International Space Station (courtesy of Sandia 
National Laboratories and the University of New Mexico, NASA and US Air Force) 
to test whether nanostructures whose formations were directed by yeast and other
single cells can create more secure homes for their occupants-even in the 
vacuum and radiation of outer space-than those created by more standard chemical
procedures. (Brightsurf 7.24.06) 

Vertically Oriented Nanoelectronics. Engineers at Purdue University have 
developed a technique to grow individual carbon nanotubes vertically on top of a
silicon wafer, a step toward making advanced electronics, wireless devices and 
sensors using nanotubes by stacking circuits and components in layers. The 
technique might help develop a method for creating "vertically oriented" 
nanoelectronic devices, the electronic equivalent of a skyscraper, said Timothy 
S. Fisher, an associate professor of mechanical engineering who is leading the 
work with Timothy D. Sands, the Basil S. Turner Professor of Engineering. 
(Technologynewsdaily Aug. 06)

Blood-compatible nanoscale materials possible using heparin. Researchers from 
Rensselaer Polytechnic Institute have engineered nanoscale materials that are 
blood compatible using heparin, an anticoagulant. The heparin biomaterials have 
potential for use as medical devices and in medical treatments such as kidney 
dialysis. (Rensselaer 5.4.06) 

Reflections of an Atom. Physicists have developed lenses and prisms to 
manipulate beams of atoms and molecules as though they were beams of light. Now,
in the 21 July PRL, a team reports on their design and testing of an atomic 
mirror. Before reflection, the system must put the atoms into a highly excited 
state. Almost any atom or molecule can be excited into one of these states, so 
the mirror along with other components could lead to new experiments on the wave
nature of atoms, as well as improved devices like gyroscopes or atomic clocks, 
researchers say. (PRL 8.1.06) http://focus.aps.org/story/v18/st3

Rice scientists attach motor to single-molecule car. In follow-on work to last 
year's groundbreaking invention of the world's first single-molecule car, 
chemists at Rice University have produced the first motorized version of their 
tiny nanocar. The research is published in the April 13 issue of the journal 
Organic Letters. (EurekAlert 4.12.06) 

Nanodogs could sniff out explosives in terror battle. Welsh scientists have 
developed a sensor they call a nanodog which is capable of 'sniffing' out 
microscopic low levels of explosives. It is hoped the technology will be used in
the fight against terrorism, with airports and governments already showing an 
interest. The nanodog was developed by a team from the University of Wales, 
Bangor's school of chemistry, led by Professor Maher Kalaji.  (Small Times 

Nanogenerators Convert Mechanical Energy To Electricity For Self-powered 
Devices. Researchers have developed a new technique for powering nanometer-scale
devices without the need for bulky energy sources such as batteries. By 
converting mechanical energy from body movement, muscle stretching or water flow
into electricity, these "nanogenerators" could make possible a new class of 
self-powered implantable medical devices, sensors and portable electronics. 

(ScienceDaily 4.16.06) 

Carbon nanotubes enter Tour de France. If Floyd Landis wins the three-week Tour 
de France, it will be a victory for nanotechnology too. Landis, the leader of 
the Phonak team and one of the pre-race favorites, rides a bike that's been 
enhanced with carbon nanotubes. Although nanotubes have previously been 
sprinkled into cranks and other components to reduce weight and provide 
additional strength, the bikes ridden by the Phonak team have nanotubes swirled 
into the frame--a first, according to their Swiss manufacturer, BMC. (Cnet 

Nanotube membranes offer possibility of cheaper desalination. A nanotube 
membrane on a silicon chip the size of a quarter may offer a cheaper way to 
remove salt from water. Researchers at Lawrence Livermore National Laboratory 
have created a membrane made of carbon nanotubes and silicon that may offer, 
among many possible applications, a less expensive desalinization. The 
nanotubes, special molecules made of carbon atoms in a unique arrangement, are 
hollow and more than 50,000 times thinner than a human hair. Billions of these 
tubes act as the pores in the membrane. (LLNL 5.18.06)

World's Smallest Bit of Nylon. A US scientist has made the world's smallest 
fragment of nylon and hopes to make more by harnessing the self-assembling 
properties of DNA, ABC wrote. Professor Nadrian Seeman of New York University 
says the long-term plan is to make ultra strong nylon. "The same properties of 
DNA that make it such a wonderful genetic material can be utilized in other 
ways," says Seeman, a pioneer of what is called structural DNA nanotechnology. 
(Irandaily 8.2.06) http://www.iran-daily.com/1385/2627/html/science.htm#s163947

Just one nanosecond: Clocking events at the nanoscale. As scientists and 
engineers build devices at smaller and smaller scales, grasping the dynamics of 
how materials behave when they are subjected to electrical signals, sound and 
other manipulations has proven to be beyond the reach of standard scientific 
techniques. But now a team of University of Wisconsin-Madison researchers has 
found a way to time such effects at the nanometer scale, in essence clocking the
movements of atoms as they are manipulated using electric fields. (U of 
Wisconsin - Madison 5.18.06) http://www.news.wisc.edu/12614.html

Scientists Image 'Magnetic Semiconductors' On The Nanoscale. In a 
first-of-its-kind achievement, scientists at the University of Iowa, the 
University of Illinois at Urbana-Champaign and Princeton University have 
directly imaged the magnetic interactions between two magnetic atoms less than 
one nanometer apart (one billionth of a meter) and embedded in a semiconductor 
chip. (Science Daily 7.26.06) 

Add Nanotubes and Stir-With the Right Force. Polymer scientists at the National 
Institute of Standards and Technology have some stirring results to share with 
researchers and companies developing new, advanced composite materials with 
carbon nanotubes-mix carefully. In a paper for Physical Review Letters,* they 
explain how the amount of force applied while mixing carbon nanotube suspensions
influences the way the tiny cylinders ultimately disperse and orient 
(nanotechwire.com 7.23.06) http://www.nanotechwire.com/news.asp?nid=3524

Nano Probe May Open New Window Into Cell Behavior. Georgia Tech invention 
captures cell properties and biochemical signals in action. Georgia Tech 
researchers have created a nanoscale probe, the Scanning Mass Spectrometry (SMS)
probe, that can capture both the biochemical makeup and topography of complex 
biological objects in their normal environment - opening the door for discovery 
of new biomarkers and improved gene studies, leading to better disease diagnosis
and drug design on the cellular level. The research was presented in the July 
issue of IEE Electronics Letters. (GIT 7.24.06)

Nano World: Nano helps keep cells alive. Encasing living cells in networks of 
silica and fatty layers only nanometers or billionths of a meter in size could 
help keep them alive longer for use in novel chemical factories or sensors, 
experts tell UPI's Nano World. Scientists are tinkering with integrating cells 
into devices. However, the usual method of doing so involves encapsulating them 
in silica gel, but when these dry out, stresses are generated that kill cells. 
Materials scientist Jeff Brinker at Sandia National Laboratory and the 
University of New Mexico in Albuquerque and colleagues instead used live cells 
to direct the formation of scaffolds that would help keep them alive. (UPI 
7.26.06) http://www.upi.com/Hi-Tech/view.php?StoryID=20060721-090232-7030r 

Researchers at Rice University's Laboratory for Nanophotonics (LANP) today 
unveiled the "nanoegg," the latest addition to their family ultrasmall, 
light-focusing particles. A cousin of the versatile nanoshell, nanoeggs are 
asymmetric specks of matter whose striking optical properties can be harnessed 
for molecular imaging, medical diagnostics, chemical sensing and more. Nanoeggs 
are described in the July 18 issue of the Proceedings of the National Academy of
(Rice 7.20.06) http://www.media.rice.edu/media/NewsBot.asp?MODE=VIEW&ID=8658

Gina "Nanogirl" Miller
Nanotechnology Industries
Personal: http://www.nanogirl.com/index2.html
Animation Blog: http://maxanimation.blogspot.com/
Craft blog: http://nanogirlblog.blogspot.com/
Foresight Participating Member http://www.foresight.org
Nanotechnology Advisor Extropy Institute  http://www.extropy.org
"Nanotechnology: Solutions for the future."

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