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<DIV><FONT face=Arial color=#800080 size=2><STRONG>The Nanogirl
News</STRONG></FONT></DIV>
<DIV><FONT face=Arial size=2>September 24, 2005</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Physicists Measure Tiny Force That Limits How Far
Machines Can Shrink. University of Arizona physicists have directly measured how
close speeding atoms can come to a surface before the atoms' wavelengths change.
Theirs is a first, fundamental measurement that confirms the idea that the wave
of a fast-moving atom shortens and lengthens depending on its distance from a
surface, an idea first proposed by pioneering quantum physicists in the late
1920s. (Daily Science News 9/23/05)<BR><A
href="http://www.sciencenewsdaily.org/story-6724.html">http://www.sciencenewsdaily.org/story-6724.html</A></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Nanowires can detect molecular signs of cancer,
scientists find. Harvard University researchers have found that molecular
markers indicating the presence of cancer in the body are readily detected in
blood scanned by special arrays of silicon nanowires – even when these cancer
markers constitute only one hundred-billionth of the protein present in a drop
of blood. In addition to this exceptional accuracy and sensitivity, the
minuscule devices also promise to pinpoint the exact type of cancer present with
a speed not currently available to clinicians. (Eurekalert 9/23/05)<BR><A
href="http://www.eurekalert.org/pub_releases/2005-09/hu-ncd092305.php">http://www.eurekalert.org/pub_releases/2005-09/hu-ncd092305.php</A></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Molecular Needles: Carbon nanotubes inject
antimycotics into cells and increase their effectiveness. Putting pharmaceutical
agents into the body isn't hard, but getting them into targeted areas can be
problematic. If drugs aren't taken up by a large enough proportion of cells, a
suitable "transport agent" must be used. A French and Italian research team has
successfully used carbon nanotubes as transport agents for antimycotics
(antifungal agents). In addition, they have developed a strategy for attaching a
second agent or marker to the nanotubes in a controlled fashion. (Chemie.De
9/21/05) <A
href="http://www.chemie.de/news/e/49045/">http://www.chemie.de/news/e/49045/</A><BR> <BR>Quantum-dot
syntheses developed. UB scientists report new processes have applications in
bioimaging and solar conversion. Efficient and highly scalable new chemical
synthesis methods developed at UB's Institute for Lasers, Photonics and
Biophotonics have the potential to revolutionize the production of quantum dots
for bioimaging and photovoltaic applications. </FONT></DIV>
<DIV><FONT face=Arial size=2>(UB Reporter 9/22/05) <A
href="http://www.buffalo.edu/reporter/vol37/vol37n4/articles/QuantumDots.html">http://www.buffalo.edu/reporter/vol37/vol37n4/articles/QuantumDots.html</A></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Like fireflies and pendulum clocks,
nano-oscillators synchronize their behavior. Like the flashing of fireflies and
ticking of pendulum clocks, the signals emitted by multiple nanoscale
oscillators can naturally synchronize under certain conditions, greatly
amplifying their output power and stabilizing their signal pattern, according to
scientists at the Commerce Department's National Institute of Standards and
Technology (NIST). (Physorg 9/14/05) <A
href="http://www.physorg.com/news6484.html">http://www.physorg.com/news6484.html</A></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Nanodiamonds prove magnetic. Researchers at
Rensselaer Polytechnic Institute, SUNY Albany, NASA Ames Research Center and
Philip Morris, all in the US, have created magnetic nanodiamonds by bombarding
the particles with carbon or nitrogen ions. The nanodiamonds became
ferromagnetic at room temperature. "These findings could lead to a systematic,
controllable method for producing magnetic carbon materials," said Pulickel
Ajayan of Rensselaer. "Though the value of the magnetization is much lower than
in regular magnets, the nature of the spin interactions in carbon could lead to
a number of potential applications." (nanotechweb 9/15/05) <A
href="http://nanotechweb.org/articles/news/4/9/9/1">http://nanotechweb.org/articles/news/4/9/9/1</A></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Purdue scientists treat cancer with RNA
nanotechnology. Using strands of genetic material, Purdue University scientists
have constructed tiny delivery vehicles that can carry anticancer therapeutic
agents directly to infected cells, offering a potential wealth of new treatments
for chronic diseases. The vehicles look nothing like delivery trucks, though
that is their function once inside the body. Instead, these so-called
nanoparticles, which are assembled from three short pieces of ribonucleic acid,
resemble miniature triangles. The microscopic particles possess both the right
size to gain entry into cells and also the right structure to carry other
therapeutic strands of RNA inside with them, where they are able to halt viral
growth or cancer's progress. The team has already tested the nanoparticles
successfully against cancer growth in mice and lab-grown human cells. (Ascribe
9/13/05) <A
href="http://www.ascribe.org/cgi-bin/behold.pl?ascribeid=20050913.144406&time=21%2005%20PDT&year=2005&public=1">http://www.ascribe.org/cgi-bin/behold.pl?ascribeid=20050913.144406&time=21%2005%20PDT&year=2005&public=1</A></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Tiny Twister. Trucks drive over the Golden Gate
Bridge with little effect, but a proposed nanoscale bridge would shudder even
from the flow of electrons. The device, described theoretically in the 2
September PRL, would detect the electrons' spins by measuring the bridge's tilt
as the electrons traverse it. Running it backward by forcing the bridge to tilt
could generate a current of electrons with aligned spins. The device could be an
essential component in the emerging field of spintronics--electronics that
manipulate electron spins in addition to charges--which may someday transform
information technology and computing. </FONT></DIV>
<DIV><FONT face=Arial size=2>(Phys. Rev. 9/19/05) <A
href="http://focus.aps.org/story/v16/st9">http://focus.aps.org/story/v16/st9</A></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Bamboo-Shaped Nanowires. There has been a growing
interest in the synthesis of bamboo-shaped carbon, BN, CN, and MoS2 nanotubes
based on their applications as both structural and functional materials.
Bamboo-shaped Ag-doped TiO2 nanowires with heterojunctions were synthesized by a
simple solvothermal method and the detailed structure of the heterojunction in
the nanowire is characterized. (Chemistry.org Sept. 2005) <A
href="http://pubs3.acs.org/acs/journals/doilookup?in_doi=10.1021/ic0505551">http://pubs3.acs.org/acs/journals/doilookup?in_doi=10.1021/ic0505551</A></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Nanotechnology Innovation Enables Recovery and
Reuse of Spilled Oil. Interface Sciences Corporation announced that in response
to oil spill problems stemming from the current Hurricane Katrina disaster and
oil crises, the company is launching its proprietary oil remediation and
recovery application. Interface Sciences treated material absorbs about 40 times
it weight in oil, far exceeding existing commercially available remediation
materials. (Nanotech cafe 9/7/05)<BR><A
href="http://www10.nanotechcafe.com/nbc/articles/view_article.php?section=CorpNews&articleid=204185">http://www10.nanotechcafe.com/nbc/articles/view_article.php?section=CorpNews&articleid=204185</A></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Nanotechnology facilities, enhanced by
thousand-year-old decorative style, near completion. A two-story-high,
450-foot-long wall surface with rock chipped flat — reminiscent of the
thousand-year-old stonework at New Mexico’s Chaco Canyon archaeological site —
cuts across the three laboratory wings of the new core facility of the Center
for Integrated Nanotechnologies.<BR>The wall’s function is not structural but
meant to serve as an advertisement rooted in New Mexico’s history.(Sandia
9/15/05) <BR><A
href="http://www.sandia.gov/news-center/news-releases/2005/micro-nano/cint-facilities.html">http://www.sandia.gov/news-center/news-releases/2005/micro-nano/cint-facilities.html</A></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Nano World: Nano for artificial kidneys.
Nanotechnological filters could lead to wearable or implantable artificial
kidneys, experts told UPI's Nano World. Animal studies for artificial-kidney
prototypes should begin one or two years from now, and clinical trials would
follow a year or two afterward, reported scientists at Biophiltre in Burlingame,
Calif., the medical-device company developing the artificial-kidney technology.
(Medlineplus 9/8/05) <A
href="http://www.nlm.nih.gov/medlineplus/news/fullstory_26808.html">http://www.nlm.nih.gov/medlineplus/news/fullstory_26808.html</A></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Researchers Awarded NSF Grant to Study Nano
Springs, Rods, Beams. Researchers at Rensselaer Polytechnic Institute are
exploring the potential of nanomechanical systems by making and testing springs,
rods, and beams on the nanoscale. They have been awarded a $1.15 million grant
from the National Science Foundation for the research. The past decade has seen
an explosion of interest in electronic devices at the molecular level, but less
attention has been paid to nanoscale mechanical systems, according to Toh-Ming
Lu, the R.P. Baker Distinguished Professor of Physics at Rensselaer and
principal investigator for the project. “Nanomechanical devices may have as
important an impact as nanoelectronics, but a number of challenges need to be
overcome before these systems can be practically realized,” (newswise 9/15/05)
<A
href="http://www.newswise.com/articles/view/514562/">http://www.newswise.com/articles/view/514562/</A></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Nanohelix Structure Provides New Building Block For
Nanoscale Piezoelectric Devices. A previously-unknown zinc oxide nanostructure
that resembles the helical configuration of DNA could provide engineers with a
new building block for creating nanometer-scale sensors, transducers, resonators
and other devices that rely on electromechanical coupling. Based on a
superlattice composed of alternating single-crystal "stripes" just a few
nanometers wide, the "nanohelix" structure is part of a family of nanobelts --
tiny ribbon-like structures with semiconducting and piezoelectric properties --
that were first reported in 2001. The nanohelices, which get their shape from
twisting forces created by a small mismatch between the stripes, are produced
using a vapor-solid growth process at high temperature. Information about the
growth and analysis of the new structures will be reported in the September 9
issue of the journal Science. (ScienceDaily 9/13/05) <A
href="http://www.sciencedaily.com/releases/2005/09/050911104847.htm">http://www.sciencedaily.com/releases/2005/09/050911104847.htm</A></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Researchers Create DNA-Based Sensors for
Nano-Tongues and Nano-Noses. Nano-sized carbon tubes coated with strands of DNA
can create tiny sensors with abilities to detect odors and tastes, according to
researchers at the University of Pennsylvania and Monell Chemical Sciences
Center. Their findings are published in the current issue of the journal Nano
Letters, a publication of the American Chemical Society. According to the
researchers, arrays of these nanosensors could detect molecules on the order of
one part per million, akin to finding a one-second play amid 278 hours of
baseball footage or a single person in Times Square on New Years' Eve. In the
report, the researchers tested the nanosensors on five different chemical
odorants, including methanol and dinitrotoluene, or DNT, a common chemical that
is also frequently a component of military-grade explosives. The nanosensors
could sniff molecules out of the air or taste them in a liquid, suggesting
applications ranging from domestic security to medical detectors.(nanotechwire
9/21/05) <A
href="http://nanotechwire.com/news.asp?nid=2330&ntid=&pg=1">http://nanotechwire.com/news.asp?nid=2330&ntid=&pg=1</A></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Nanotechnology Confronts the Bad Hair Day. Ohio
State University researchers have just completed the first comprehensive study
of human hair on the nanometer level. Special equipment enabled Bharat Bhushan,
Ohio Eminent Scholar and the Howard D. Winbigler Professor of mechanical
engineering at Ohio State, and his colleagues to get an unprecedented close-up
look at a rogue's gallery of bad hair days – from chemically overprocessed locks
to curls kinked up by humidity.<BR>They used the techniques they developed to
test a new high-tech hair conditioner. Ultimately, the same techniques could be
used to improve lipstick, nail polish and other beauty products, said Bhushan.
His specialty is nanotribology – the measurement of very small things, such as
the friction between moving parts in microelectronics. (SAWF 9/8/05)<BR><A
href="http://news.sawf.org/Health/2608.aspx">http://news.sawf.org/Health/2608.aspx</A></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>And recent press of the <A
href="http://www.nanogirl.com/museumfuture/dermaldisplay.htm">Dermal Display</A>
animation: </FONT></DIV>
<DIV><A href="http://www.engadget.com/entry/1234000837060178/#comments">engadget
</A>currently 22 comments. <BR><A
href="http://www.kurzweilai.net/news/frame.html?main=/news/news_single.html?id=4874">KurzweilAI.net</A><BR><A
href="http://www.medgadget.com/archives/2005/09/visualizing_the.html">medGadget
</A><BR><A
href="http://www.nanotech-now.com/news.cgi?story_id=11640">Nanotechnology
Now</A> <BR><A href="http://www.nanovip.com/forums/showthread.php?t=816">NanoVIP
</A><BR><SPAN class=style5><A
href="http://www.imminst.org/forum/index.php?s=&act=ST&f=41&t=8070">Immortality
Institute</A><FONT color=#0000cc> </FONT></SPAN>discussion.<BR><A
href="http://news.search.yahoo.com/news/search?p=nano+technology&rs=1">Yahoo</A></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Gina "Nanogirl" Miller<BR>Nanotechnology
Industries<BR><A
href="http://www.nanoindustries.com">http://www.nanoindustries.com</A><BR>Personal:
<A
href="http://www.nanogirl.com/index2.html">http://www.nanogirl.com/index2.html</A><BR>Foresight
Participating Member <A
href="http://www.foresight.org">http://www.foresight.org</A><BR>Nanotechnology
Advisor Extropy Institute <A
href="http://www.extropy.org">http://www.extropy.org</A><BR>3D/Animation <A
href="http://www.nanogirl.com/museumfuture/index.htm">http://www.nanogirl.com/museumfuture/index.htm</A><BR>Microscope
Jewelry<BR><A
href="http://www.nanogirl.com/crafts/microjewelry.htm">http://www.nanogirl.com/crafts/microjewelry.htm</A><BR>Email:
<A
href="mailto:nanogirl@halcyon.com">nanogirl@halcyon.com</A><BR>"Nanotechnology:
Solutions for the future."<BR></FONT></DIV></BODY></HTML>