Navigation Links
Scientists carve nanowires out of ultrananocrystalline diamond thin films
Date:11/4/2011

A team of scientists working at Argonne National Laboratory's (ANL) Center for Nanoscale Materials has successfully carved ultrananocrystalline diamond (UNCD) thin films into nanowires, boosting the material's functionality and providing potential improvements to the fabrication of biosensors.

The team, led by Anirudha Sumant, a materials scientist at ANL, will present their research during AVS' 58th International Symposium & Exhibition, held Oct. 30 Nov. 4, 2011, in Nashville, Tenn.

UNCD thin films are a special form of diamond invented at ANL, and the subject of tremendous interest because of the material's highly desirable ability to alter its electrical properties when the chemical bonding between grain boundaries is modified. "It's a highly attractive carbon-based material with a wide range of applications in communications, medicine, and defense," notes Sumant.

A primary motive behind their studies, he explains, is to understand the electrical transport properties of UNCH when it's fabricated into a nanowire geometry. They also want to see how these properties can be altered by changing chemical bonding at the grain boundary and by taking advantage of increased surface-to-volume ratio at the same time.

"We've demonstrated a pathway to fabricate UNCD nanowires, with widths as small as 30 nanometers at a thickness of 40nanometers, by using a top-down fabrication approach that combines electron beam lithography and [a] reactive ion etching process," says Sumant.

Among the exceptional electrical properties of the UNCD nanowires, the researchers also discovered a resistance that is extremely sensitive to the adsorption of gas molecules at the grain boundaries. This discovery opens up new possibilities for the fabrication of advanced nanoscale sensors for specific use, according to the team.

The main advantage of UNCD over other materials, he explains, is that it provides stable functionalization, which
'/>"/>

Contact: Catherine Meyers
cmeyers@aip.org
301-209-3088
American Institute of Physics
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Berkeley Lab scientists develop new tool for the study of spatial patterns in living cells
2. Shaken, not stirred: Berkeley lab scientists spy molecular maneuvers
3. Using new technique, scientists uncover a delicate magnetic balance for superconductivity
4. Scientists create computing building blocks from bacteria and DNA
5. Scientists determine alternative insecticide dramatically reduces malaria transmission
6. Scientists take up golf to prove long-standing theory of cell stickiness
7. Sheffield scientists shine a light on the detection of bacterial infection
8. Scientists observe how superconducting nanowires lose resistance-free state
9. Controlling silicon evaporation allows scientists to boost graphene quality
10. Scientists utilize breath and sweat to detect trapped humans
11. Neuroscientists produce guide for ultrasound use to treat brain disorders in clinical emergencies
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2014)... July 31, 2014 Nearly 20,000 medical professionals ... Annual Meeting & Clinical Lab Expo in ... never-before-seen breakthroughs in diagnostic research and technology that will ... As of Wednesday, July 30, more than ... Meeting & Clinical Lab Expo, with more than 10,000 ...
(Date:7/31/2014)... Researchers at Johns Hopkins have mapped the sound-processing part ... both the proverbial forest and the trees in view. ... views of brain activity within mice, and it enabled ... mice "called" to each other. The results, which represent ... process language, appear online July 31 the journal ...
(Date:7/31/2014)... PORTOLA VALLEY, Calif. , July 31, 2014 /PRNewswire/ ... San Francisco Bay Area , has ... the University of Oxford,s commercialisation company. The potent anti-inflammatory ... David Greaves at the University of Oxford,s Sir ... The company, which has raised over $1.5 million ...
(Date:7/31/2014)... Research and Markets has announced ... report to their offering. ... of the genetic material or genomes of an organism. ... the discovery and development of diagnostic and therapeutic solutions ... Genomics is supported by three major product segments: Instruments, ...
Breaking Biology Technology:Research on Digital Health, Alzheimer's, Ebola Draws Nearly 20,000 Attendees to 2014 AACC Annual Meeting & Clinical Lab Expo 2Research on Digital Health, Alzheimer's, Ebola Draws Nearly 20,000 Attendees to 2014 AACC Annual Meeting & Clinical Lab Expo 3New mapping approach lets scientists zoom in and out as the brain processes sound 2Oxford licenses anti-inflammatory peptides to San Francisco Bay Area start-up 2Oxford licenses anti-inflammatory peptides to San Francisco Bay Area start-up 3Global Genomics Market 2014-2018: Key Vendors are F. Hoffmann-La Roche, Life Technologies, Qiagen and Illumina 2
... China, Oct. 14 /Xinhua-PRNewswire/ -- WuXi PharmaTech,(Cayman) Inc. ... and,medical device research and development outsourcing company with ... the addition of Jeff X.,Leng, managing director of ... Mr. Leng is replacing Sean Tong, formerly with ...
... and III ... Trials, ... ) today announced positive long-term follow-up,data from the CUSTOM I, II and ... stent (DES) system in treating,patients with coronary artery disease. The CUSTOM clinical ...
... SEATTLE, Oct. 13 Larry Corey, M.D., senior ... Disease Institute,at Fred Hutchinson Cancer Research Center, today ... the prestigious Institutes of Medicine (IOM)., Election ... highest honors in the,fields of health and medicine ...
Cached Biology Technology:WuXi PharmaTech Appoints Jeff Leng to Its Board of Directors 2Custom NX(R) Drug Eluting Stent System Continues to Demonstrate Favorable Outcomes in Challenging Patient Populations at One, Two and Three Years 2Custom NX(R) Drug Eluting Stent System Continues to Demonstrate Favorable Outcomes in Challenging Patient Populations at One, Two and Three Years 3
(Date:7/31/2014)... , July 31, 2014 Biometrics ... and innovative smart technologies; companies turn towards digital currency: ... EBAY ), Amazon.com Inc. (NASDAQ: AMZN ), ... (NASDAQ: GOOG ) and Microsoft Corporation (NASDAQ: ... focused on the growing m-commerce market, announces a video ...
(Date:7/31/2014)... nuts (almonds, Brazil nuts, cashews, hazelnuts, macadamias, pecans, pine ... online publications, British Medical Journal Open (BMJ Open) ... BMJ Open article looked at the effects ... showed that tree nut consumption resulted in a significant ... PLOS ONE article focused on the effect of ...
(Date:7/30/2014)... Inspired by the Red Queen in Lewis Carroll,s ... of Illinois and National University of Singapore improved ... species evolve over decades to millions of years. ... model for competition, incorporates the "Red Queen Effect," ... in the 1970s, which suggests that organisms must ...
Breaking Biology News(10 mins):Smart Technology Consumer's Interest in Mobile Payment Products Grows - Company Secures Deal with Major Airline to Display Advertisements in Flight for its Next Generation Smart Wallet 2Smart Technology Consumer's Interest in Mobile Payment Products Grows - Company Secures Deal with Major Airline to Display Advertisements in Flight for its Next Generation Smart Wallet 3Smart Technology Consumer's Interest in Mobile Payment Products Grows - Company Secures Deal with Major Airline to Display Advertisements in Flight for its Next Generation Smart Wallet 4Smart Technology Consumer's Interest in Mobile Payment Products Grows - Company Secures Deal with Major Airline to Display Advertisements in Flight for its Next Generation Smart Wallet 5Smart Technology Consumer's Interest in Mobile Payment Products Grows - Company Secures Deal with Major Airline to Display Advertisements in Flight for its Next Generation Smart Wallet 6New international tree nut council study looks at nuts, diabetes and metabolic syndrome 2Classic Lewis Carroll character inspires new ecological model 2Classic Lewis Carroll character inspires new ecological model 3
... multi-disciplinary analysis that included cognitive, neurophysiologic, virologic, and molecular ... in the brain and immune cells that had infiltrated ... , "As in the rest of the body, ... control of the virus, but are unable to clear ...
... genes to survive than scientists first believed, according to new ... some of the simplest forms of life and have been ... genes ?or minimal genome ?that is needed for maintaining life. ... 'knocking out', a series of individual genes from a bacterial ...
... scientists have found that people have an ancient skeleton ... a jawless, eel-like fish. , It turns out lampreys, ... than almost all other backboned animals, may not be ... genetics that govern their skeletal development, according to findings ...
Cached Biology News:Immune response to HIV in the brain 2Minimal genome should be twice the size, study shows 2Minimal genome should be twice the size, study shows 3UF scientists reveal ancient origin of vertebrate skeleton 2UF scientists reveal ancient origin of vertebrate skeleton 3
Hamster serum...
... Kit with CyScribe GFX Purification Kit, ... purification of Cy3- and Cy5-labeled cDNA.Optimized ... cDNA labeling and purification.Flexible and optimized ... labeling reactions with either Cy3- or ...
Canine Serum...
CASPR (H-66)...
Biology Products: