Navigation Links
The sensitive side of carbon nanotubes: Creating powerful pressure sensors
Date:10/24/2007

Troy, N.Y. Blocks of carbon nanotubes can be used to create effective and powerful pressure sensors, according to a new study by researchers at Rensselaer Polytechnic Institute.

Taking advantage of the materials unique electrical and mechanical properties, researchers repeatedly squeezed a 3-millimeter nanotube block and discovered it was highly suitable for potential applications as a pressure sensor. No matter how many times or how hard they squeezed the block, it exhibited a constant, linear relationship between how much force was applied and electrical resistance.

Because of the linear relationship between load and stress, it can be a very good pressure sensor, said Subbalakshmi Sreekala, a postdoctoral researcher at Rensselaer and author of the study.

A sensor incorporating the carbon nanotube block would be able to detect very slight weight changes and would be beneficial in any number of practical and industrial applications, Sreekala said. Two potential applications are a pressure gauge to check the air pressure of automobile tires, and a microelectromechanical pressure sensor that could be used in semiconductor manufacturing equipment.

Despite extensive research over the past decade into the mechanical properties of carbon nanotube structures, this study is the first to explore and document the materials strain-resistance relationship. The paper, titled Effects of compressive strains on electrical conductivities of a macroscale carbon nanotube block, was published in a recent issue of Applied Physics Letters.

Over the course of the experiment, the researchers placed the carbon nanotube block in a vice-like machine and applied different levels of stress. They took note of the stress applied and measured the corresponding strain put on the nanotube block. As it was being squeezed, the researchers also sent an electrical charge through the block and measured its resistance, or how easily
'/>"/>

Contact: Michael Mullaney
mullam@rpi.edu
518-276-6161
Rensselaer Polytechnic Institute
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Highest Transfection Efficiency of an Endotoxin-Sensitive Mammalian Cell Line
2. Simple, Sensitive, and Rapid Detection of FLAG -Tagged Fusion Proteins
3. Simple, Sensitive Isotyping of Mouse Monoclonal Antibodies
4. Gene Expression Arrays: Highly Sensitive Detection of Expression Patterns with Improved Tools for Target Amplification
5. The DIG System Nonradioactive and Highly Sensitive Detection of Nucleic Acids
6. Sensitive detection of tumor cells in peripheral blood of carcinoma patients by a reverse transcription PCR method
7. Novel MicroRNA Array Technology for Sensitive miRNA Profiling
8. Highly Sensitive microRNA Array Performance
9. Screening for β2-adrenergic receptor agonists using the pH-sensitive dye,CypHer5, and the IN Cell Analyzer 3000
10. Development of a sensitive enzyme fragment complementation assay for cyclic adenosine 3, 5 monophosphate and its validation for pharmacological screening at G protein-coupled receptors
11. Sensitive identification of phosphopeptides in brain tissue using Ettan MDLC and Finnigan LTQ
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/24/2014)... (PRWEB) December 23, 2014 Nashville Fertility ... was elected treasurer for the American Society for Reproductive ... knowledge and research in reproductive medicine. In his ... seat on the executive board and will have a ... Dr. Hill has actively supported ASRM since 1984 when ...
(Date:12/24/2014)... CA (PRWEB) December 23, 2014 Pipette.com ... where their Twitter followers can submit their #HolidayInTheLab pictures ... and their lab mates. , For those struggling to ... mates, the Pipette.com Holiday in the Lab Contest provides ... Pipette.com Twitter followers to send pictures of their ...
(Date:12/24/2014)... , Dec. 23, 2014 Vermillion, ... focused on gynecologic disease, announced today that investors ... , Birchview Fund LLC and several Vermillion directors ... unregistered shares of Vermillion,s common stock and warrants ... in a private placement.  Under ...
(Date:12/24/2014)... , Dec. 23, 2014 Sigma-Aldrich Corporation ... the waiting period under the Hart-Scott-Rodino Antitrust Improvements ... expired on December 22, 2014, thereby completing the ... for the acquisition of the Company by Merck ... clearance satisfies another condition to closing the transaction, ...
Breaking Biology Technology:Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 2Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 3Major Pipette Distributor Pipette.com Announces their Holiday in the Lab Contest 2Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 2Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 3Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 4Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 5Acquisition of Sigma-Aldrich by Merck KGaA, Darmstadt, Germany, Receives U.S. Antitrust Clearance 2Acquisition of Sigma-Aldrich by Merck KGaA, Darmstadt, Germany, Receives U.S. Antitrust Clearance 3
... RIVER, N.J., July 29 PDI, Inc. (Nasdaq: PDII ... U.S. pharmaceutical companies, today announced that it will release its second ... market close. , , PDI will host ... on August 5, 2009 to discuss the results. To participate in ...
... BRISBANE, Calif., July 29 InterMune, Inc. (Nasdaq: ITMN ... results on Thursday, August 6, 2009 at 4:00 p.m. Eastern time. ... InterMune at 4:30 p.m. Eastern time that same day. , ... or 973-200-3372 (international), conference ID# 22196018. To access the webcast, ...
... , EATONTOWN, N.J., July 29 ... the emerging field of biologic products for regenerative healing, today ... Company, the French regulatory agency, afssaps, rescinded its December 17, ... tissue products processed from donors procured by TB OsteoCentre Bulgaria ...
Cached Biology Technology:PDI, Inc. to Hold Second Quarter 2009 Financial Results Conference Call on Wednesday, August 5, 2009 2InterMune to Release Second Quarter Financial Results on August 6 2Osteotech Resumes Shipments of Bulgarian Tissue 2Osteotech Resumes Shipments of Bulgarian Tissue 3
(Date:12/22/2014)... , Dec. 22, 2014 Research ... has announced the addition of the ... report to their offering. ... insight provides an overview of the global ... aims to control and monitor piracy by ...
(Date:12/19/2014)... Dec. 18, 2014  23andMe, Inc., the leading personal ... that pinpoints fine-scale differences in genetic ancestry of individuals ... Since immigrants first arrived more than four ... has served as a meeting place for peoples ... and the ongoing mixing of peoples with African, European, ...
(Date:12/17/2014)...  HITLAB SM announced today its completion ... confirm its adherence to current U.S. Food and ... to conduct regulated smart device and smart phone ... safety and research quality. "HITLAB is ... delivery with innovative technology," said Laura Pugliese ...
Breaking Biology News(10 mins):The Global Watermarking and Fingerprinting Markets 223andMe Study Sketches Genetic Portrait of the United States 223andMe Study Sketches Genetic Portrait of the United States 323andMe Study Sketches Genetic Portrait of the United States 4HITLAB Completes GCP Audit for FDA Smart Device & App Compliance 2
... U.S. Department of Energy (DOE) Joint Genome Institute (JGI) ... winning at the 13th Annual Applied Ergonomics Conference held ... The Ergo Cup highlights ergonomic innovations from institutions and ... in Ergonomics," was for the Ergonomic Program Improvement Initiatives ...
... A preliminary study by New Zealand company Plant ... may help breathing in some types of asthma. ... may reduce lung inflammation with a multi-action assault in ... to enhance the natural defence mechanisms in lung tissue ...
... Ghoneum today will discuss his findings on cancer research and ... event, sponsored by the Egyptian Cultural and Educational Bureau, will ... reception. Ghoneum, an Egyptian-born researcher and professor at Charles ... been studying natural cures for cancer for more than two ...
Cached Biology News:Breathe easy: A natural fruit compound may help asthma 2
Component in MasterPure™ Purification Kits...
Anti-gp340 Monoclonal Antibody Description: 100 g Research Focus: cancer & cell proliferation Storage: -20C Shipping Temperature: 4C...
Mouse anti-HIV-Imn PND Class: Antibody Product Group: Bacterial and Viral Antigen...
... Product Goat polyclonal to BRF2 Immunogen ... amino acids 406-419 of Human BRF2. Reactivity ... tested in other species. Background Information ... the RNA polymerase III transcription factor complex required ...
Biology Products: