X-Message-Number: 19303
From: "Gina Miller" <>
Subject: The Nanogirl News~
Date: Tue, 18 Jun 2002 00:58:18 -0700

The Nanogirl News
June 18, 2002

IBM's 'Millipede' Project Demonstrates Trillion-Bit Data Storage Density.
June 11, 2002 -- Using an innovative nanotechnology, IBM scientists have
demonstrated a data storage density of a trillion bits per square inch -- 20
times higher than the densest magnetic storage available today. IBM achieved
this remarkable density -- enough to store 25 million printed textbook pages
on a surface the size of a postage stamp -- in a research project code-named
"Millipede". (IBM 6/11/02)

Extreme ultraviolet lithography accelerates the future. The era of nanoscale
computer chips is almost upon us. Recent advances employ the "at-wavelength"
extreme-ultraviolet interferometer at the Advanced Light Source, arguably
the most accurate wavefront measuring device in the world, now converted to
print test wafers from advanced optics. (Berkeley Lab science beat 6/4/02)

U.S. Energy Secretary Spencer Abraham visited Brookhaven National Laboratory
on Friday to announce that BNL's proposed nanocenter will officially move
ahead. In remarks to BNL employees after touring the labs on Long Island in
New York, Abraham also signaled the Energy Department's growing commitment
to developing nanotechnologies that serve U.S. national interests, from
bioterror detection to fuel cells that could help reduce dependence on
foreign oil. (Small Times 6/17/02)

Cornell scientists create single-atom transistor by implanting molecule
between wires, enabling 'virtual dance of electrons'. A long-sought goal of
scientists has been to shrink the transistor, the basic building block of
electronic circuits, to smaller and smaller size scales. Scientists at
Cornell University have now reached the smallest possible limit: a
transistor in which electrons flow through a single atom. The Cornell
researchers have created a single-atom transistor by implanting a "designer"
molecule between two gold electrodes, or wires, to create a circuit. When
voltage was applied to the transistor, electrons flowed through a single
cobalt atom within the molecule. (Cornell news 6/12/02)
In a similar way, Hongkun Park and colleagues at Harvard University and the
University of California at Berkeley trapped divanadium molecules between
gold electrodes - also 1 nm apart - and used aluminium oxide to isolate the
gap region from their silicon gate electrode (W Liang et al 2002 Nature 417
Hongkun Park's group

Nanowires composed of two different semiconductors that could function as
transistors, light-emitting diodes, biochemical sensors, thermoelectric heat
pumps -- or all of the above on the same length of wire -- may hasten the
arrival of silicon chips packed with billions of electronic devices. A
critical step towards realizing that future has been taken by Berkeley Lab
researchers who have developed nanowires composed of two different
semiconductors -- silicon and silicon germanium alloy -- in discrete
alternating segments, like the different flavored stripes of a candy cane.
These striped or "superlatticed" nanowires can function as transistors, LEDs
(light-emitting diodes) and other optoelectronic devices, biochemical
sensors, heat-pumping thermoelectric devices, or all of the above, along the
same length of wire.(Berkeley Lab science beat 6/4/02)

Endohedral Fullerenes. They aren't easy to prepare or study, but researchers
are getting closer to understanding and exploiting the unique properties of
these fascinating molecules.At the 201st meeting of the Electrochemical
Society (ECS), held last month in Philadelphia, attendees were treated to a
smorgasbord of new findings about endohedral fullerenes that is likely to
feed their fascination. Speakers at the conference reported intriguing
preliminary results on upping the synthetic yield of "endohedrals,"
encapsulating a carbene inside a carbon cage, testing a new metallofullerene
derivative with potential for medical imaging, and measuring for the first
time the nuclear magnetic resonance (NMR) spectrum of a xenon atom trapped
inside a buckyball, among other advances. (C&E 6/17/02)

Magnetic NOT Gate A nanometre-scale logic gate that works at room
temperature and is made entirely from metal has been developed  by UK
physicists. According to Russell Cowburn's team at the University of Durham,
the ferromagnetic NOT gate is "a completely new class of device" that could
be made even smaller. The researchers have also created a 13-bit shift
register by linking the devices together, and believe it should be possible
to make a full set of logic gates using their technique (D Allwood et al
2002 Science 296 2003).   (Nanotechweb 06/13/2002)

Writing Nanopatterns With DNA Inks. Using an atomic force microscope tip as
a pen and different single-stranded DNA as inks, scientists have
demonstrated a technique that could lead to the ultimate high-density gene
chip because it takes gene chips to the limit of miniaturization - down to
the scale of the DNA molecules themselves. This development, which uses the
same tool to write patterns and read the results on the nanometer scale,
could have an enormous impact on genomics and proteomics research.
(Northwestern University, via EurekAlert 06/06/2002)

New Robotic Microscope Helps Scientists Track Cells Over Time. A new
invention-a robotic microscope-is opening the way for scientists to track
changes in cells over time as genes are expressed and the resulting proteins
go into action. Tracking this dynamic process is extremely difficult using
conventional techniques. Part of the problem has been the cells' need for
the warmth and atmosphere of an incubator such that cells can only be taken
out and viewed for brief periods of time. (Science Daily 6/10/02)

Researchers demo self-assembling nanowires. Researchers at Aarhus University
here have demonstrated a nanometer-scale fabrication technique that
self-assembles tiny wires atop substrates, with an eye toward
interconnecting molecular electronic circuits in the future. The team
demonstrated how a template molecule could form wires measuring only 2 atoms
wide atop a copper substrate, said Flemming Besenbacher, director of the
university's Nanoscience Center, who conducted the work with researchers
Federico Rosei and Michael Schunackm. "Our self-fabrication process makes
use of the shape of a template molecule at the nanoscale to enable
interconnecting molecules with atomic-scale precision," said Besenbacher.
(EE Times 6/5/02) http://www.eet.com/at/news/OEG20020604S0011

ND3 - The first molecule with three deuterium atoms discovered in space. To
their great surprise, astronomers of the Max-Planck-Institute for Radio
Astronomy in Bonn and the California Institute of Technology in Los Angeles
have discovered a new molecule in space: ND3. This is a special form of
ammonia, NH3, where all three hydrogen atoms are replaced by the heavier and
rare isotope deuterium (similar as in heavy water - D2O). Such molecules
which contain deuterium occur mostly in very cold clouds of gas and dust in
our Milky Way. In such clouds, molecules with one or two deuterium atoms had
been found before. The new molecule, however, is the first one with three
deuterium atoms. The results are published in a letter to Astronomy &
Astrophysics (Vol 388(3), L53: June IV, 2002).

Researchers run molecular machines on light. In a breakthrough suggesting
that a new field of nanotechnology based on optical fields might emerge,
researchers here have demonstrated the feasibility of operating molecular
machines with light. The researchers were able to perform complete
mechanical cycles, demonstrating for the first time that optomechanical
energy conversion is possible. (EE Times 5/6/02)

Beam Me Up! Australian Scientists Teleport a Beam of Light. In a world
breakthrough out of the realms of Star Trek, scientists in Australia have
successfully teleported a laser beam of light from one spot to another in a
split second but warn: don't sell the car yet. A team of physicists at the
Australian National University (ANU) announced today they had successfully
disembodied a laser beam in one location and rebuilt it in a different spot
about one meter away in the blink of an eye. (ABC news 6/17/02)

'High-tech' cosmetics coming into vogue. Cosmetic products that utilize the
latest developments in science and technology, including nanotechnology,
have been attracting much attention from consumers. But how far can science
and technology go in realizing women's hope of staying young and beautiful
forever? Cosmetic products function both to cover imperfections and improve
the condition of the skin to make women look more beautiful. (Daily Yomiuri

A new chemical procedure can be used to prepare neatly aligned nanotubes
from a wide range of polymers, polymer blends, and multicomponent solutions,
according to researchers in Germany. The work provides a general technique
for preparing functionalized structures for applications in nanotechnology.
By wetting ordered porous templates with droplets of polymer melts or
polymer solutions, Martin Steinhart and Joachim H. Wendorff of Philipps
University in Marburg, Ralf B. Wehrspohn and Ulrich M. G sele of Max Planck
Institute of Microstructure Physics in Halle, and coworkers coat template
surfaces with polymer films that retain the shape of the template's pore
array after the template is removed by chemical means [Science, 296, 1997
(2002)]. (C & E 6/17/02)

Nanotechnology's First Fruits. Products nearing market promise to lead the
budding industry from hype to reality. When most people think about
nanotechnology, they usually conjure images of microscopically tiny
contraptions such as the invisibly small submarine that was injected into a
character's bloodstream in the classic 1966 sci-fi movie "Fantastic Voyage."
Nanovehicles and the revolution they would create in science, medicine,
military affairs, and manufacturing are still on the distant horizon. (SF
GATE 6/6/02)       http://www.sfgate.com/technology/beat/

For Intel, Hype Without Silicon is Just Hype. While some companies are just
now embracing and hyping nanotech as a "new" technology, Intel has been
working in the field and shipping products with nano-sized components for
years. "When people talk just about size, we've been there for a long time
and we're shipping in high volume," Gerald Marcyk, director of Intel's
Components Research Group, told NanotechPlanet. (Silliconvalley internet.com

Infineon Technologies achieves breakthrough in carbon nanotube technology.
First microelectronics compatible growth of nanotubes at predefined sites on
silicon wafers. Scientists from Infineon Technologies (FSE/NYSE: IFX) in
Munich have made a crucial breakthrough in the promising field of carbon
nanotube (CNT) research. A tried-and-tested microelectronics process was
modified so that CNTs could be grown at predefined locations on 6" wafers.
The properties of CNTs, which are very interesting for many applications and
include current densities up to 1010 amps per square centimeter and thermal
conductivities almost twice that of diamond, can now be used for the first
time in wafer-compatible processes for IC development. (Infineon
Technologies news 6/6/02)

Extremely small is beautiful. Last week the management of Magnet, the
generic technology research and development program of the chief scientist
at the Industry and Trade Ministry, selected nanotechnology as its main
field and as the leading project for 2002. Due to budgetary constraints the
management, headed by outgoing Chief Scientist Carmel Vernia and the
program's director, Ilan Peled, was forced to choose one project, and
favored the nanotechnology consortium over the concentrations of competing
institutions in the communications field. (Ha'aretz 6/18/02)

Oxonica Raises $6 Million on Nanotech Applications. Oxonica, an Oxford-based
nanoparticle company has received a first-round of institutional investment
worth 4 million pounds ($6 million) from VCF Partners, BASF Venture Capital,
NextGen Partners, Enabling Technologies, Northern Venture Managers and
Generics Asset Management of the Generics Group. The company was previously
seed funded by Seighford Investment. (Tornado Insider 6/10/02)

A few small thoughts on nanotechnology. Small is big and it's getting
bigger.Nanotechnology, the branch of engineering that promises to turn
molecules into machines--is capturing America's imagination. Businesses
predict demand, investors smell profits, cities see tax revenue and jobs.
Nano buffs forecast that by 2015 this mighty-mite technology will grow into
a trillion-dollar industry. That's trillion, with a T. With a Q & A section.
(The Business Review 6/4/02)

Tiny Weapons With Giant Potential. Dr.Uri Sagman, president of C Sixty a
Toronto-based nanotechnology company that is developing carbon molecules
called fullerenes as a drug-delivery system for cancer, AIDS and other
diseases. Soon, he hopes, it will be possible to load these minuscule,
spherical structures-each containing 60 carbon atoms arranged like the
hexagonal pattern on a soccer ball-with drugs or radioactive atoms and then
fire them like guided missiles at diseased cells. "Think of a smart bomb,"
says Sagman. "Conventional chemotherapy is like carpet-bombing. You drop it
from 60,000 feet and hope for the best. This goes precisely to the target."
(MSNBC 6/24/02 issue)

Sorry this news update took so long, as I was distracted by the
Nanotechnology Industries re-design, don't forget to stop by!

Gina "Nanogirl" Miller

"Nanotechnology: Solutions for the future."

"I want to know God's thoughts...the rest are details." Einstein

Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=19303