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NILT nanonews jan 12: Nanoscopic coaxial cable, metamaterials, cost effective nanoimprint
device
22. januar 2007 17:21:33
Nano & NIL Newsletter
- stay in front of development with NIL Technology
Dear colleagues,
Welcome to this year's second edition of NIL Technology's nano newsletter.
The 13 most important nano news this week include among others the nanoscopic
coaxial cable for transmission of visible light. Reseachers at Boston College, US, have
down-scaled a conventional coaxial cable for radio wave transmission by coating a
carbon nanotube with a film of aluminum oxide and a film of chromium or aluminum.
The diameter of the cable is 300 nm which is smaller than the wavelength of visible
light. Normally light cannot penetrate structures smaller than their length - but a length
of nanotube protrudes from the end of the cable and acts as an optical antenna to guide
the light into the cable. This way light can be transmitted on the nanoscale which could
be exploited in e.g. solar cells, artificial retinas or quantum computers. Read this and the
other 12 hand-picked news below.
Daily updated news can be found on the NIL Technology news site
Editor, CTO
Brian Bilenberg
The 13 most important global Nano & NIL News the past week
Nanoscopic 'coaxial cable' transmits light
A way to make nanoscopic metal cables transmit light could lead to innovations in
solar cells, artificial retinas and quantum computing components, say researchers.
[NewScientistTech]
Metamaterials for cloaking gain visibility
What is claimed as the world's first metamaterial for visible wavelengths was
demonstrated recently at the U.S. Energy Department's Ames Laboratory.
Metamaterials exhibit a negative index of refraction, thereby enabling a flat lens to
precisely focus light in place of a concave lens.
[EE Times]
EU funded project develops cost effective nano-imprinting device
Finnish and French researchers working on an EU funded project have developed a
nano-imprinting device for the mass production of solar cells and nano-scale bioanalysis platforms.
[Nanotechnology.com]
Homing Nanoparticles Pack Multiple Assault On Tumors
A research team has developed nanoparticles that seek out tumors and bind to their
blood vessels, and then attract more nanoparticles to the tumor target. Using this
system the team demonstrated that the homing nanoparticle could be used to deliver a
"payload" of an imaging compound, and in the process act as a clotting agent,
obstructing as much as 20% of the tumor blood vessels.
[ScienceDaily]
NIL Technology sells silicon, nickel and quartz stamps for nanoimprint lithography
with minimum stamp structure sizes below 20 nm
Silicon wafers which can be aligned ‘like Lego’
A technique which will allow silicon wafers to be stacked accurately and inexpensively
in 3-D structures has been developed by researchers at the University of Southampton.
According to Dr Michael Kraft at the University's School of Electronics & Computer
Science (ECS), the major challenge when stacking silicon wafers is to align one wafer
to another, matching all the features.
[Alpha Galileo]
Nanotubes Functionalized Controllably
A single molecule can be covalently attached to an individual carbon nanotube by
using a novel electrochemical method, according to a new study. The technique
provides a way to functionalize nanotube sidewalls controllably and doubles as an
interrogation method for probing chemical reactions as they occur.
[Chemical & Engineering News]
Scientists Discover New Class Of Polymers
For years, polymer chemistry textbooks have stated that a whole class of little
molecules called 1,2-disubstituted ethylenes could not be transformed into polymers-the stuff of which plastics and other materials are made.
[ScienceDaily]
New wires could create better nanotube interconnects and devices
A team of researchers at Rensselaer Polytechnic Institute [profile] has created hybrid
structures that combine the best properties of carbon nanotubes and metal nanowires.
The new structures, which are described in a recent issue of Applied Physics Letters,
could help overcome some of the key hurdles to using carbon nanotubes in computer
chips, displays, sensors, and many other electronic devices.
[Nanotechnology.com]
Breaking the nanostructure mould
Researchers at the University of Minnesota have developed a process for producing
nanoscale cubes and spheres using the controlled disassembly of larger, lattice-like
structures. This could make the production of more uniform porous nanostructures
simple and controlled.
[The Engineer Online]
Meet NIL Technology at nano tech 2007 in Tokyo, Japan, on February 21 - 23. Feel
free to contact us, if you wish to arrange a meeting at nano tech.
Self-cleaning underwear needs no washing for weeks
Self-cleaning fabrics could revolutionize the sport apparel industry. The technology,
created by scientists working for the U.S. Air Force, has already been used to create tshirts and underwear that can be worn hygenically for weeks without washing.
[Pravde Ru]
Repetitive motion speeds nanoparticle uptake
Newly published research by Rice University chemists and North Carolina State
University toxicologists finds that repetitive movement can speed the uptake of
nanoparticles through the skin. The research is based on in vitro experiments involving
animal skin that was exposed to buckyball-containing amino acids.
[Nanotechnology.com]
Toward A New Oral Delivery System For Insulin Using Nanoshell Shields
Scientists in Taiwan are reporting development of a nanoparticle drug delivery system
that shows promise as a potential way to administer insulin and perhaps other proteinbased drugs by mouth rather than injection or nasal sprays.
[ScienceDaily]
Rapid, Low-Cost DNA Testing
Professor Lewis Rothberg of the University of Rochester Chemistry Department
received a NYSTAR grant in August 2006 to continue working on a recent discovery by
Huixiang Li, a research associate in his group: how to rapidly test DNA to improve our
health and make sure we're drinking clean water and eating uncontaminated food.
[ScienceDaily]
NIL Technology offers a NIL stamp with standard structures down to 100 nm for just
EUR 1,950. Read more here
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