Carbon Nanotube Based Electrodes for Biomedical Applications: related news

Carbon-Nanotube-Based Electrodes for Biomedical Applications

A nanotube array based on vertically aligned nanotubes or carbon nanofibers has been invented for use in localized electrical stimulation and recording of electrical responses in selected regions of an animal body, especially including the brain. There are numerous established, emerging, and potential applications for localized electrical stimulation and/or recording, including treatment of Parkinson’s disease, Tourette’s syndrome, and chronic pain, and research on electrochemical effects involved in neurotransmission.

Unidym to Present Integration of Nanotube-Based Transparent Electrodes into Advanced Displays

(Nanowerk News) Unidym, Inc, a majority-owned subsidiary of Arrowhead Research Corporation (NASDAQ:ARWR), announced that it will participate in the upcoming Society for Information Display (SID) International Symposium, Seminar and Exhibition at the Los Angeles Convention Center May 18th through 23rd. The company will be exhibiting its carbon nanotube-based transparent conductive electrodes designed for use in displays and touch panels at its booth (#504). In addition, Unidym’s CTO, Dr. Paul Drzaic, will chair a session discussing e-paper (Session 46) and present a short paper (Session 37.4) discussing the integration of carbon nanotube-based transparent electrodes into display applications.

The role of surfactants in carbon nanotube toxicity

(Nanowerk Spotlight) Synthesized carbon nanotubes, especially single-walled carbon nanotubes (SWCNTs), are in the form of bundles with other impurities such as catalyst particles and amorphous carbon debris. In order to be useful for many types of applications, for instance in nanoelectronic devices or biomedical applications, SWCNTs need to be purified and dispersed into individual nanotubes. One method to do this is by surfactant stabilization of the hydrophobic nanotube surface, which overcomes the van der Waals forces among the nanotubes and results in suspensions of individual SWCNTs.

Livermore researchers use carbon nanotubes for molecular transport

FAST FLOW THROUGH CARBON NANOTUBES: The animation starts with the depiction of the water flow through a regular "rough" pipe. The molecules near the wall stick to it and move much slower than the molecules in the middle of the pipe. Colors indicate the speed of the molecules -- green are fast, yellow are slower, red are the slowest. The rough pipe fades and the carbon nanotube appears. All the molecules in the carbon nanotube move fast (green). They do not stick to the surface of the nanotube because that surface is very slippery. The water molecules travel in chains because they interact with each other strongly via hydrogen bonds. These two effects (the slippery nanotube surface and formation of water molecule chains inside the nanotube) combine to produce this phenomenon of ultra-fast flow through carbon nanotubes.

Book Review of Chemistry and Physics of Carbon, Vol. 30

This book covers a wide range of topics on the chemistry, physics, and applications of carbon and carbon materials. Like previous volumes, the subjects discussed here reveal the multidisciplinary nature of carbon research, as can be seen in the titles of its chapters: (1) “Carbon Activation by Alkaline Hydroxides: Preparation and Reactions, Porosity and Performance: by Linares-Solano et al.; “Template Approaches to Preparing Porous Carbon� by Zhao and co-workers; “Characterization of Carbon Surface Chemistry� by Burg and Cagniant; and “Sorption of Heavy Oils into Carbon Materials� by Inagaki and co-workers. In addition to a standard Table of Contents, there is also a list of the contents of the previous 29 volumes as well as a subject index.

Unidym Announces a Demonstration by Samsung Electronics of the First Carbon Nanotube-Based Electrophoretic Display

Unidym, Inc, a majority-owned subsidiary of Arrowhead Research Corporation (NASDAQ:ARWR), announced today that Samsung Electronics is demonstrating the world's first carbon nanotube-based active matrix electrophoretic display (EPD) e-paper in its booth at the Society for Information Display (SID) International Symposium, Seminar and Exhibition at the Los Angeles Convention Center from May 18th through May 23rd. The new e-paper device is the result of an ongoing joint development program between Samsung Electronics Co., Ltd. and Unidym. The e-paper device uses a carbon nanotube transparent electrode developed by Unidym.

3D Parts Integrated on Carbon-nanotube Wafer

An electron microscope image of vertically-aligned carbon-nanotube films (left) and an optical microscope image of a carbon-nanotube wafer (right). The small picture in the upper right is a 2 × 2cm carbon-nanotube wafer.

3D Parts Integrated on Carbon-nanotube Wafer

National Institute of Advanced Industrial Science and Technology (AIST) manufactured integrated 3D carbon-nanotube components by using single-layer carbon nanotubes. A "carbon-nanotube wafer" developed by densely aligning carbon nanotubes enabled to use microfabrication techniques of lithography.

First sequence-based map of large-scale structural variation across the human genome

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Nantero, SVTC installing CMOS-friendly carbon nanotube process

To accelerate the commercialisation of carbon nanotube-based electronics products, carbon nanotube (CNT) semiconductor device developer Nantero said it is working with semiconductor development foundry SVTC Technologies to install a "CMOS-friendly" CNT process at SVTC's fabs in San Jose, Calif, and Austin, Texas.

RIM to include SAP software on BlackBerrys

Germany-based enterprise software developer SAP and Canada-based mobile device manufacturer Research In Motion (RIM) have signed a co-innovation partnership agreement to change the way people work, by enabling anytime, anywhere mobile access to SAP enterprise applications through the BlackBerry platform. The first output expected from this new partnership is a BlackBerry smartphone client that will merge the power of the SAP Customer Relationship Management (SAP CRM) application with core BlackBerry smartphone applications, including the BlackBerry Email, Address Book and Calendar applications. As part of the work delivered through the partnership, RIM will enhance its framework for building intuitive, workflow-enabled mobile applications for the BlackBerry platform.

Fast Electromechanical Switches Based on Carbon Nanotubes

Electrostatically actuated nano- electromechanical switches based on carbon nanotubes have been fabricated and tested in a continuing effort to develop high-speed switches for a variety of stationary and portable electronic equipment. As explained below, these devices offer advantages over electrostatically actuated micro- electromechanical switches, which, heretofore, have represented the state of the art of rapid, highly miniaturized electromechanical switches. Potential applications for these devices include computer memories, cellular telephones, communication networks, scientific instrumentation, and general radiation-hard electronic equipment.

Reusable, Dry Adhesive Material Utilizing Vertically Aligned Multiwalled Carbon Nanotube Array

A novel dry adhesive is being developed that can mimic the hairs on a gecko's foot using vertically aligned multiwalled carbon nanotube (CNT) array. The use of CNT array as dry adhesive material allows reproducing biological adhesion structures and generates fairly strong adhesion strength (over 100 N per centimeter square). CNTs are known to have extraordinary mechanical, thermal and electrical properties. This adhesive can be bent repeatedly with large deflection without failure, which intrinsically results in a reusable or re-attachable dry adhesive. The highly hydrophobic property of CNTs makes them free from the clumping problem, which the polymer based synthetic hair structures face. This product's adhesion is so effective it can be directly applied to glass.

Unidym Demonstrates First Full Color Active Matrix LCD Using a Carbon Nanotube-Based Transparent Electrode

Unidym Demonstrates First Full Color Active Matrix LCD Using a Carbon Nanotube-Based Transparent Electrode

Unidym Supports Samsung Electronics Demo of the Carbon Nanotube-Based Electrophoretic Display

Unidym, a majority-owned subsidiary of Arrowhead Research, announced that Samsung Electronics demonstrated the world's first carbon nanotube-based active matrix electrophoretic display (EPD) e-paper in its booth at the Society for Information Display (SID) International Symposium, Seminar and Exhibition at the Los Angeles Convention Center.

Unidym Demonstrates First Full Color Active Matrix LCD Using a Carbon Nanotube-Based Transparent Electrode

Unidym, Inc, a majority-owned subsidiary of Arrowhead Research Corporation (NASDAQ:ARWR), announced today the world's first full color active matrix LCD made with carbon nanotube (CNT) components. This engineering prototype is currently being demonstrated in Unidym's booth (#504) at the Society for Information Display (SID) International Symposium, Seminar and Exhibition at the Los Angeles Convention Center. The new active matrix LCD was made in collaboration with Silicon Display Technology based in Seoul, Korea.

Nanotube-suppliers.com launches a service for nanotube buyers

Nanotube-suppliers.com, the site ranked number 1 among primary Internet search engines for the query "nanotube(s) supplier(s)", now allows nanotube buyers to contact more than 40 international nanotube suppliers by sending a single e-mail message.

Nantero and SVTC Make Carbon-Nanotube Capability Available for Next-Generation Electronics

(Nanowerk News) Nantero, Inc., a nanotechnology company using carbon nanotubes (CNTs) for the development of next-generation semiconductor devices, has announced collaboration with SVTC Technologies to accelerate the commercialization of nanotube-based electronics products. Nantero has developed a “CMOS-friendly” proprietary CNT process that it will install at SVTC’s two state-of-the-art development fabs, in San Jose, Calif., and Austin, Texas.

Gas Sensors Based on Coated and Doped Carbon Nanotubes

Efforts are underway to develop inexpensive, low-power electronic sensors, based on single-walled carbon nanotubes (SWCNTs), for measuring part-per-million and part-per-billion of selected gases (small molecules) at room temperature. Chemically unmodified SWCNTs are mostly unresponsive to typical gases that one might wish to detect. However, the electrical resistances of SWCNTs can be made to vary with concentrations of gases of interest by coating or doping the SWCNTs with suitable materials. Accordingly, the basic idea of the present development efforts is to incorporate thus-treated SWCNTs into electronic devices that measure their electrical resistances.

Nanochemistry inside carbon nanotubes

(Nanowerk Spotlight) As far as test tubes go, it doesn't get any smaller than a single-walled carbon nanotube (SWCNT). Among the wide range of interesting properties exhibited by SWCNTs is their capacity to encapsulate molecules within their quasi one-dimensional cavity. The confinement offered by the nanotube could serve as a nanoscale test tube to constrain a chemical reaction. This was demonstrated in principle back in 1998, when the coalescence of adjacent fullerenes was observed by transmission electron microscopy ("Encapsulated C60 in carbon nanotubes"). In the following years, scientists have extensively experimented with filling nanotubes with other fullerenes, atoms, molecules and, very recently, with organic molecules. Owing to their large variety with diverse chemical properties, the incorporated organic molecules can tune the

Clarification: Carbon nanotubes study performed on mice

Weekly reported on a new study that shows some potential for carbon nanotubes to behave like asbestos if inhaled. We failed to report, however, that the study was conducted by injecting carbon nanotubes into the abdomen of mice. Conclusions reached about the inhalation risk of carbon nanotubes were made by researchers involved in the project based on results of the injection regime. There is, as yet, no direct evidence that inhalation of carbon nanotubes poses a health risk, and researchers involved in the study acknowledged that more experimentation is required to fully assess inhalation risk.

Unidym Demos Full Color Active Matrix LCD Using a Carbon Nanotube-Based Transparent Electrode

Unidym, a majority-owned subsidiary of Arrowhead Research Corp., announced the world's first full color active matrix LCD made with carbon nanotube (CNT) components.

Wind River and Intel collaborate on Moblin-based Linux platform

Wind River announces that it is collaborating with Intel Corporation to accelerate the Mobile Internet Device (MID) market segment. Wind River, with support from Intel, will develop an open, extensible Moblin-based Linux platform for the MID market. Furthermore, Wind River will introduce a commercial Moblin-based Linux platform specifically optimized for Intel Centrino Atom processor technology-based MIDs. Wind River Linux Platform for Mobile Internet Devices will be a full-featured, commercial-grade Linux platform that will include a Linux distribution, middleware, and mobile applications targeted to deliver rich Internet and media experiences. As part of this effort, Wind River will participate in and contribute code to Moblin.org, an open source community project where Moblin-based technologies are developed.

Carbon nanotube technology could su..

Just as silicon is the wonder material of the computer age, carbon nanotubes will most likely be the materials responsible for the next evolutionary step in electronics and computing. Their extraordinary properties have identified them as having the potential to revolutionize many technologies. In particular, it is widely believed that carbon nanotubes will take electronic devices to the next level. Many people expect the hugely popular LCD and plasma screens to be replaced by field emission flat screen displays (FED-TV). FED-TV's combine all the best aspects of CRT's, LCD's and plasma TV's into a single package. While the technology exists, manufacturers are at present unable to compete with LCD's and plasma displays on a cost basis. However, carbon nanotubes have the ability to change all that.

Nantero, SVTC installing CMOS-friendly carbon nanotube process

Carbon nanotubes are cylindrical carbon molecules approximately one nanometer wide and up to one millimeter long, which hold the promise for a variety of semiconductor, nanotechnology and optics applications.

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