Navigation Links
Nanotubes key to microscopic mechanics
Date:10/25/2011

Oxford -- In the latest issue of Elsevier's Materials Today, researchers from Spain and Belgium reported on the innovative use of carbon nanotubes to create mechanical components for use in a new generation of micro-machines. While the electronics industry has excelled in miniaturizing components, with individual elements approaching the nanoscale (or a billionth of a meter), reducing the size of mechanical systems has proved much more challenging.

One of the difficulties of shrinking mechanical devices is that the conventional techniques used to produce individual components are not useful when it comes to creating intricate shapes on the microscale. One promising technique is electrical discharge machining (EDM), which uses a spark of electricity to blast away the unwanted material to create complex shapes. However, this method requires that the target material is electrically conductive, limiting the use of EDM on hard, ceramic materials.

But now, by implanting carbon nanotubes in silicon nitride, the ceramic of choice, Manuel Belmonte and colleagues have been able to increase the electrical conductivity of the material by 13 orders of magnitude and have used EDM to produce a microgear without compromising the production time or integrity of the apparatus.

Carbon nanotubes rose to prominence in the early 1990s when their range of remarkable properties became apparent. These include phenomenal strength and electrical properties that can be tailored to suit. Each tube is made from a rolled up sheet of carbon atoms in a honeycomb-like structure. Unrolled, this sheet is also known as graphene, the innovative material which was the subject of the 2010 Nobel Prize in Physics. Implanted inside a ceramic, these nanotubes form a conductive network that greatly reduces electrical resistance.

The electrical conductivity of the composite material is much higher, while the mechanical properties of the ceramic are preserved an
'/>"/>

Contact: Jonathan Agbenyega
j.agbenye@elsevier.com
44-186-584-3987
Elsevier
Source:Eurekalert

Page: 1 2

Related biology news :

1. Why carbon nanotubes spell trouble for cells
2. NJIT professor working with graphene, carbon nanotubes to receive honor
3. Penn researchers help graft olfactory receptors onto nanotubes
4. Amplified nanotubes may power the future
5. Better viewing through fluorescent nanotubes when peering into innards of a mouse
6. Researchers create functioning synapse using carbon nanotubes
7. Metallic molecules to nanotubes: Spread out!
8. Directed self-assembly of vertical nanotubes for biosensors, logic, nano-biofuel cells
9. Tests show bright future for gadonanotubes in stem cell tracking
10. The effects of hydrogen on growing carbon nanotubes
11. Nanotubes pass acid test
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/4/2014)... amount of death at the right time might actually ... research that could help in understanding animal populations, pest ... a paper in the journal Trends in Ecology ... colleagues conclude that the kind of positive population effect ... or mortality, depends on the size and developmental stage ...
(Date:11/4/2014)... only marketing directed at children on the interior ... that the majority of black, middle-income and rural ... , Authored by Arizona State University researcher Punam ... first to examine the use of child-directed marketing ... restaurants and its relationship to demographics. It adds ...
(Date:11/4/2014)... , Nov. 4, 2014   Neurotechnology ... today announced that the latest version of its ... the Ongoing MINEX evaluation organized by ... fingerprint algorithms using the INCITS 378 fingerprint standard ... requirement in public tenders in the ...
Breaking Biology News(10 mins):When less is more: Death in moderation boosts population density in nature 2Fast food marketing for children disproportionately affects certain communities 2Fast food marketing for children disproportionately affects certain communities 3Neurotechnology Places Second in Ongoing MINEX Ranking for Fingerprint Matching Algorithms 2Neurotechnology Places Second in Ongoing MINEX Ranking for Fingerprint Matching Algorithms 3
... The Scripps Research Institute has received funding from the ... T. Valente, an assistant professor in the Department of ... study of the many genes and protein products that ... inside human cells. These unique molecular interactions between retrovirus ...
... 26, 2010 Periodontitis, a common inflammatory disease in ... of bacteria and potential bone and tooth loss. Although ... strategies target the inflammatory response. In an article in ... American Dietetic Association , researchers from Harvard Medical School ...
... While most commonly associated with mononucleosis, Epstein-Barr virus (EBV) ... after the initial infection takes place, including some forms of ... Biological Chemistry , scientists at The Wistar Institute describe how ... effects of gene activity allows EBV to hide within ...
Cached Biology News:Landenberger Foundation awards grant to Scripps Florida scientist to study HIV 2Consuming polyunsaturated fatty acids may lower the incidence of gum disease 2MicroRNAs dictate the Epstein-Barr virus' elaborate waiting game, cancer formation 2MicroRNAs dictate the Epstein-Barr virus' elaborate waiting game, cancer formation 3
(Date:11/21/2014)... The report, "Synthetic Biology ... Cloning kits), Technology (Bioinformatics, Nanotechnology, Gene Synthesis, ... Bioremediation) - Global Forecast to 2018", analyses ... opportunities, and challenges. , Browse 99 market ... 185 pages and in-depth TOC of the ...
(Date:11/21/2014)... 2014 Deep Research Report on ... research report on the transformer market. The report ... and industry chain structure as well as industry ... including China’s domestic market as well as global ... analysis. The report also covers information on policy, ...
(Date:11/18/2014)... SAN BRUNO, Calif. , Nov. 18, 2014 ... is a platinum sponsor of the 10th Annual World Stem ... and regenerative medicine stakeholders. The 2014 World Stem Cell Summit ... San Antonio, Texas . ... the discovery and development of lifesaving cures and therapies, convening ...
(Date:11/18/2014)... New Brunswick, NJ (PRWEB) November 18, 2014 ... of Data Quality and Transparency Reporting solutions, announced ... has gone live using its Consummate Provider™ solution ... Consummate Provider™ is a Global, SaaS based, Data ... Science organizations and their third party Providers improve ...
Breaking Biology Technology:Synthetic Biology Market Expected to Reach $5,630.4 Million in 2018 - New Report by MarketsandMarkets 2Synthetic Biology Market Expected to Reach $5,630.4 Million in 2018 - New Report by MarketsandMarkets 3Synthetic Biology Market Expected to Reach $5,630.4 Million in 2018 - New Report by MarketsandMarkets 4International Transformer Industry - Analysis on Applications, Development & Forecasts Now Available at ReportsnReports.com 2International Transformer Industry - Analysis on Applications, Development & Forecasts Now Available at ReportsnReports.com 3Cord Blood Registry Sponsors 2014 World Stem Cell Summit 2Cord Blood Registry Sponsors 2014 World Stem Cell Summit 3Alanda Software Completes Successful Implementation of Global Data Quality & Vendor Management Solution for Top Tier Global Biopharmaceutical Company 2
... a long-term reversal of tinnitus, a debilitating hearing impairment ... up to 40 percent of military veterans, according to ... of Nature . Researchers Dr. Michael ... Texas at Dallas and University-affiliated biotechnology firm MicroTransponder report ...
... success of the previous conferences of the series held ... (EPD) conferences are a leading venue for experts from ... as a processing technique for fabrication of both traditional ... electric surface charge on particles in suspension, which migrate ...
... NEOG ) today announced that its rapid test ... the U.S. Food and Drug Administration (FDA) to be equivalent ... sensitivity for detecting SE. The FDA,s determination of ... Reveal for SE to shorten the testing time and comply ...
Cached Biology Technology:Nature article focuses on tinnitus treatment 2Nature article focuses on tinnitus treatment 34th International Conference on Electrophoretic Deposition 24th International Conference on Electrophoretic Deposition 34th International Conference on Electrophoretic Deposition 4Neogen's Rapid Test for Salmonella enteritidis Receives FDA Approval 2
... Cell Lab Quantas unique combination of ... population resolution capabilities and accurate cell ... excitation wavelengths, including UV, allowing flexible ... multi-color applications typically only achievable with ...
... The Cytomics FC 500 Series ... equipped with the most advanced ... Series delivers flexible testing, powerful ... features that help researchers optimize ...
... crosslinked to protein G-agarose beads which can ... heart mitochondria. Also included are 2 mg ... ,The pyruvate dehydrogenase complex (PDH) immunocapture kit ... of tissue. This facilitates the subsequent analysis ...
... Protein/antibody delivery using PULSin may be superior ... example, unlike traditional transfection, with PULSin you ... level and time course of proteins in ... provide more information than traditional RNA interference ...
Biology Products: