Navigation Links
Imaging tool may aid nanoelectronics by screening tiny tubes
Date:11/16/2010

WEST LAFAYETTE, Ind. - Researchers have demonstrated a new imaging tool for rapidly screening structures called single-wall carbon nanotubes, possibly hastening their use in creating a new class of computers and electronics that are faster and consume less power than today's.

The semiconducting nanostructures might be used to revolutionize electronics by replacing conventional silicon components and circuits. However, one obstacle in their application is that metallic versions form unavoidably during the manufacturing process, contaminating the semiconducting nanotubes.

Now researchers have discovered that an advanced imaging technology could solve this problem, said Ji-Xin Cheng, an associate professor of biomedical engineering and chemistry at Purdue University.

"The imaging system uses a pulsing laser to deposit energy into the nanotubes, pumping the nanotubes from a ground state to an excited state," he said. "Then, another laser called a probe senses the excited nanotubes and reveals the contrast between metallic and semiconductor tubes."

The technique, called transient absorption, measures the "metallicity" of the tubes. The detection method might be combined with another laser to zap the unwanted metallic nanotubes as they roll off of the manufacturing line, leaving only the semiconducting tubes.

Findings are detailed in a research paper appearing online this week in the journal Physical Review Letters.

Single-wall nanotubes are formed by rolling up a one-atom-thick layer of graphite called graphene, which could eventually rival silicon as a basis for computer chips. Researchers in Cheng's group, working with nanomaterials for biomedical studies, were puzzled when they noticed the metallic nanoparticles and semiconducting nanowires transmitted and absorbed light differently after being exposed to the pulsing laser.

Then researcher Chen Yang, a Purdue assistant professor of physical
'/>"/>

Contact: Emil Venere
venere@purdue.edu
765-494-4709
Purdue University
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. ICON Medical Imaging Launches New Service to Boost Reliability of Cardiology Studies
2. VisEn Announces Commercial Launch of IntegriSenseTM Fluorescence Molecular Imaging Agent
3. LI-COR August 27th On-Line Webinar Introduces New Approach to Small Animal In Vivo Imaging
4. Caliper Launches Small Animal Molecular Imaging System Enabling Real-Time Video Observation
5. Small Animal Imaging Market: Biospace Lab Wins Frost & Sullivan Accolade for Its Successful Product Line Strategy
6. Imaging Diagnostic Systems Receives its First Order for its CT Laser Mammography System for Israel
7. Ziehm Imaging Extends its Training Offer
8. Imaging Diagnostic Systems Sells Its CT Laser Mammography System to Budapest, Hungary
9. Case Western Reserve University researcher improves LCDs with 3-D nanoimaging process
10. LI-COR Biosciences and Euthanex Corporation Provide Anesthesia System for Small Animal Imaging
11. Diagnostic Imaging - Enters Purchase Agreement to Acquire Teleradiology Company
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Imaging tool may aid nanoelectronics by screening tiny tubes
(Date:7/31/2014)... global market for molecular diagnostics is expected to reach ... study by Grand View Research, Inc. Growing demand for ... advanced cancer diagnostic technologies are expected to be key ... Moreover, the growing global base of geriatric population and ... lifestyle habits such as smoking and excessive alcohol consumption ...
(Date:7/31/2014)... 31, 2014   BioLife Solutions , Inc. (NASDAQ: ... marketer of proprietary clinical grade hypothermic storage ... thermal shipping products for cells and tissues, today ... results will be released on Thursday, August 7, 2014, ... and live webcast at 4:30 p.m. ET that afternoon. ...
(Date:7/31/2014)... July 31, 2014 Boston’s Adult Stem ... flush with innovative adult stem cell biotechnologies. Currently ... and has three additional patent applications currently under examination ... patented inventions address two of the most vexing problems ... Adult stem cells are difficult to identify; and ...
(Date:7/30/2014)... PARIS , July 30, 2014  Regeneron ... NYSE: SNY) today announced that the Companies intend to ... pediatric disease priority review voucher in connection with the ... review voucher entitles the holder to designate a BLA ... review from the filing date instead of the standard ...
Breaking Biology Technology:Molecular Diagnostics Market - Global Industry Size, Share, Trends, Analysis, Players, Opportunity, Outlook and Forecast From 2014 to 2020 2Molecular Diagnostics Market - Global Industry Size, Share, Trends, Analysis, Players, Opportunity, Outlook and Forecast From 2014 to 2020 3Molecular Diagnostics Market - Global Industry Size, Share, Trends, Analysis, Players, Opportunity, Outlook and Forecast From 2014 to 2020 4Molecular Diagnostics Market - Global Industry Size, Share, Trends, Analysis, Players, Opportunity, Outlook and Forecast From 2014 to 2020 5BioLife Solutions to Report Financial Results for Second Quarter 2014 and Provide Business Update on August 7, 2014 2The Adult Stem Cell Technology Center, LLC Launches A Marketing Campaign To License Adult Stem Cell Biotechnologies 2The Adult Stem Cell Technology Center, LLC Launches A Marketing Campaign To License Adult Stem Cell Biotechnologies 3Regeneron and Sanofi Announce Plan to Use Priority Review Voucher For Alirocumab U.S. FDA Submission 2Regeneron and Sanofi Announce Plan to Use Priority Review Voucher For Alirocumab U.S. FDA Submission 3Regeneron and Sanofi Announce Plan to Use Priority Review Voucher For Alirocumab U.S. FDA Submission 4Regeneron and Sanofi Announce Plan to Use Priority Review Voucher For Alirocumab U.S. FDA Submission 5Regeneron and Sanofi Announce Plan to Use Priority Review Voucher For Alirocumab U.S. FDA Submission 6
... of GE Healthcare in Milwaukee, has built the ... , ,The MRI, which is used to study internal anatomy ... magnet. A tesla is a unit of magnetic strength. The ... times the strength of the Earths magnetic field. , ,While ...
... Source: Wisconsin Paper Council APPLETON, Wis. Foreign ... the latest technology and find new marketsor slowly perish. ... a story from 1911. It still serves as an ... newsprint producer in the United States. That dominance faded ...
... serious fight between Apple Computers and Apple Records (of Beatles fame) ... of the ring is Sir Paul McCartney, with the title of ... On the other side, yet another youthful boy wonder, Steve Jobs ... to lead the start of the personal computer revolution. , ,The ...
Cached Biology Technology:Wisconsin's paper industry needs technology, innovation to prosper. 2Wisconsin's paper industry needs technology, innovation to prosper. 3Why you should never name your company after a fruit 2Why you should never name your company after a fruit 3
(Date:7/31/2014)... hazard lurks beneath many of the roughly 156,000 ... hazard is corrosion in parts of underground gas ... and contamination of groundwater, a source of drinking ... states have reported many rapidly corroding gas storage ... are generally associated with use of gasoline-ethanol blends ...
(Date:7/31/2014)... available in German . ... gases similar to a sponge that soaks up liquids. ... hydrogen or greenhouse gases. However, loading of many MOFs ... Technology (KIT) now report in Nature Communications ... MOF surface. This can be prevented by water-free synthesis ...
(Date:7/31/2014)... alters how the brain processes speech, potentially increasing ... neuroscientists at The University of Texas at Dallas. ... Ear and Hearing , researchers demonstrated for ... the brain,s recognition of speech sounds. , Noise-induced ... population, affecting an estimated 15 percent of Americans ...
Breaking Biology News(10 mins):NIST corrosion lab tests suggest need for underground gas tank retrofits 2Free pores for molecule transport 2UT Dallas study reveals effect of loud noises on brain 2
... focus on forestsas opposed to the entire landscapecould ... poor in developing countries, said a Nairobi-based agroforestry ... forest degradation is driven by forces outside forests, ... land uses that involve the whole landscape, not ...
... This release is available in French . ... Laval, in collaboration with Nova Scotia Agricultural College, have discovered ... to double the lifespan of Christmas trees in homes. The ... scientific journal Trees . The researchers have identified ...
... Personality is not just a feature unique to humans ... have revealed that also brown trout have individual characters ... the Department of Zoology at the University of Gothenburg ... trout from watercourses on the west coast of Sweden. ...
Cached Biology News:Towards an efficient, effective and equitable REDD+ 2Towards an efficient, effective and equitable REDD+ 3Towards an efficient, effective and equitable REDD+ 4Researchers discover a way to delay Christmas tree needle loss 2
Mouse monoclonal antibody to PDK2 - pyruvate dehydrogenase kinase, isoenzyme 2...
... cytoplasmic expression of an N-terminal FLAG® fusion ... selection marker from bicistronic mRNA. Two ... MCS2 for transcription of a single message ... useful for protein-protein interaction studies, multi-subunit proteins, ...
Mouse monoclonal antibody raised against a partial recombinant CALCOCO2. NCBI Entrez Gene ID = CALCOCO2...
Mouse polyclonal antibody raised against a partial recombinant KCTD13. NCBI Entrez Gene ID = 253980...
Biology Products: