Carbon Nanotubes and Graphene - Research and Applications

PHYSICISTS PULL OFF THE GECKO'S FEAT
Nanotube material is 10 times stickier than the lizard
http://nanotechweb.org/cws/article/tech/36186

NANOTUBE CATALYSTS IMPROVE INDUSTRIAL REACTION
A catalyst consisting of modified carbon nanotubes makes an important
industrial reaction milder, safer and more selective, according to
researchers in Germany.
http://www.rsc.org/chemistryworld/News/2008/October/03100801.asp


CARBON NANOTUBE COMPOSITES BRING BIO-MIMICKING ARTIFICIAL MUSCLES AND SKIN
CLOSER
Jonghwan Suhr, an assistant professor of mechanical engineering, recently
published his research findings on Continuous Reinforced Carbon Nanotube
Composites in Nano Letters.
http://www.nanowerk.com/

NANOTUBE PAPER FLEXES ON DEMAND
Polymer-reinforced carbon nanotube actuator generates a stress of 1.8 MPa
http://nanotechweb.org/cws/article/tech/35702

INVISIBLE NANOTUBE CABLE COULD SUPPORT A HUMAN
CIRCUS acts and movie special effects may never be the same again, if an
idea for an invisible cable made of carbon nanotubes works out.
http://technology.newscientist.com/article/mg19926656.300-invisible-nanotube-cable-
could-support-a-human.html?DCMP=ILC-hmts&nsref=news3_head_mg19926656.300


SIMULATIONS HELP EXPLAIN FAST WATER TRANSPORT IN NANOTUBES
By discovering the physical mechanism behind the rapid transport of water in
carbon nanotubes, scientists at the University of Illinois have moved a step
closer to ultra-efficient, next-generation nanofluidic devices for drug
delivery, water purification and nano-manufacturing.
http://www.news.uiuc.edu/news/08/0916water.html
http://www.eurekalert.org/pub_releases/2008-09/uoia-she091608.php

A CAUTIONARY NOTE IN THE USE OF CARBON NANOTUBES AS INTERCONNECTS
Researchers at the University of Surrey's Advanced Technology Institute (UK)
have used scanning tunnelling microscopy to confirm remarkable changes in
the fundamental electronic behaviour when double-walled carbon nanotubes are
subject to radial deformations and torsional strain. The work reported in
Nano Letters (reference below) reveals that squashing and twisting a
double-walled nanotube opens an electronic band gap in an otherwise metallic
system, which has major ramifications on the use of carbon nanotubes for
electronic and NEMS applications.
http://portal.surrey.ac.uk/portal/page?_pageid=799,2190695&_dad=portal&_schema=PORTAL


SELECTIVE AGGREGATION OF SINGLE-WALLED CARBON NANOTUBES USING THE LARGE
OPTICAL FIELD GRADIENT OF A FOCUSED LASER BEAM
We demonstrate the selective aggregation of single-walled carbon nanotubes
by photon forces, using the large optical field gradient of a laser focused
through a high numerical aperture objective lens. The nanotubes, dispersed
in an aqueous solution with a surfactant, are detected via Raman scattering
from the confocal volume of the optical trap. By using a visible-light laser
for both trapping and detection, the dynamics of the radial breathing mode
signal taken at short intervals shows an increase of a single breathing mode
over time, indicating the increase in the density of only one species of
tube in the focal volume. This result represents a significant step toward
the development of techniques for the arbitrary manipulation and sorting of
nanotubes by optical fields.
http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=
PRLTAO000101000012127402000001&idtype=cvips&gifs=yes


UNC STUDY ON PROPERTIES OF CARBON NANOTUBES, WATER COULD HAVE WIDE-RANGING
IMPLICATIONS
A fresh discovery about the way water behaves inside carbon nanotubes could
have implications in fields ranging from the function of ultra-tiny
high-tech devices to scientists' understanding of biological processes,
according to researchers from the University of North Carolina at Chapel Hill.
http://www.nanotech-now.com/news.cgi?story_id=30869

HOW DO MAGNETIC NANOTUBES INTERACT?
Simple mathematical expression could drive real-world applications
http://nanotechweb.org/cws/article/tech/36062

ATOM EXPULSION SHAPES NANODEVICES
Focused electron beam blasts 2.5 nm holes in nanotubes and nanowires
http://nanotechweb.org/cws/article/tech/35904


IN BRIEF: RESEARCH ROUND-UP
Nanotube growth kinetics, cell labelling, photonic crystals and more...
http://nanotechweb.org/cws/article/tech/35442


WATER PURIFICATION DOWN THE NANOTUBES
Could nanotechnology solve the water crisis?
http://www.nanotech-now.com/news.cgi?story_id=30662

NANOTUBES EXHIBIT THRESHOLD TOXICITY
Living cells tolerate carbon nanotubes below certain doses
http://nanotechweb.org/cws/article/tech/36075

NANOTUBES DETECT TUMORS AND DELIVER HIGH-POTENCY PUNCH
Researchers at the Center for Cancer Nanotechnology Excellence Focused on
Therapy Response (CCNE-TR), based at Stanford University, have found a new
way to target cancer cells while leaving healthy cells untouched. The
solution involves using single-walled carbon nanotubes as delivery vehicles.
The new method has enabled the researchers to get a higher proportion of a
given dose of medication into the tumor cells than is possible with the
"free" drug—that is, the one not bound to nanotubes—thus reducing the amount
of medication needed to be injected into a subject to achieve the desired
therapeutic effect.
http://nano.cancer.gov/news_center/2008/sept/nanotech_news_2008-09-26c.asp

# posted by Osváth Zoltán @ 10:51 pm 0 Comments