Navigation Links
Narrowest bridges of gold are also the strongest, study finds
Date:7/13/2011

BUFFALO, N.Y. -- At an atomic scale, the tiniest bridge of gold -- that made of a single atom -- is actually the strongest, according to new research by engineers at the University at Buffalo's Laboratory for Quantum Devices.

The counterintuitive finding is the result of experiments probing the characteristics of atomic-scale necks of gold that formed when the pointed, gold tip of a cantilever was pushed into a flat, gold surface. An examination of these tiny, gold bridges revealed that they were stiffest when they comprised just a single atom.

The study was published in June in Physical Review B by a trio of UB researchers: postdoctoral fellow Jason Armstrong and professors Susan Hua and Harsh Deep Chopra, all in UB's Department of Mechanical and Aerospace Engineering. Support for the work came from National Science Foundation grants No. DMR-0706074 and No. DMR-0964830.

As engineers look to build devices such as computer circuits with ever-smaller parts, it is critical to learn more about how tiny components comprising a single atom or a few atoms might behave. The physical properties of atomic-scale gadgets differ from those of larger, "bulk" counterparts.

"Everyday intuition would suggest that devices made of just a few atoms would be highly susceptible to mechanical forces," the team said. "This study finds, however, that the ability of the material to resist elastic deformation actually increases with decreasing size."

Another observation the team made while studying the tiny gold necks: abrupt atomic displacements that occur as the gold tip and surface are drawn apart are not arbitrary, but follow well-defined rules of crystallography. More scientific highlights of the work are summarized in the Physical Review Focus of the American Physical Society at http://focus.aps.org/story/v27/st24.

UB's Laboratory for Quantum Devices, led by Chopra and Hua, works on mapping the
'/>"/>

Contact: Charlotte Hsu
chsu22@buffalo.edu
716-645-4655
University at Buffalo
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Forward-Thinking Patient Recruitment Company Poised to Create Bridges Between Japanese Clinical R&D Industry and Global Clinical Trial Marketplace
2. Virginia Tech engineers investigate energy independent monitoring system for bridges
3. Chimerix Commences Phase 2 Clinical Study of CMX001 for Prevention of Adenovirus Disease in Pediatric and Adult Hematopoietic Stem Cell Transplant Patients
4. University of Dayton Study Overturns 250-Year-Old Belief About Effects of Age, Repeated Injury on Tissue Regeneration
5. InterMune Initiates Phase 3 ASCEND Study of Pirfenidone in IPF
6. Inovio Pharmaceuticals DNA Vaccine for Foot-and-Mouth Disease Generates Protective Neutralizing Antibodies in Second Large-Animal Study
7. Intarcia Presents Positive Phase 2 48-week Results From ITCA 650 Study at the American Diabetes Association 71st Scientific Sessions
8. New study: Even in flies, enriched learning drives need for sleep
9. Positive Results from Phase IIa Study Pave Way for Phase IIb Trial of AC-201 for the Treatment of Type II Diabetes
10. Morphotek®, Inc. Announces Initiation of MORAb-004 Phase II Study in Melanoma
11. Adeona Announces Positive Alzheimers Subgroup Analysis that Supports Additional Clinical Study of Proprietary Zinc-Based Therapy
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Narrowest bridges of gold are also the strongest, study finds
(Date:8/3/2015)... , August 3, 2015 ... Study on 3D Cell Culture: Asia ... Persistence Market Research, the global 3D cell culture market was valued ... to expand at a CAGR of 29.1% to account ... Full Report with TOC:  http://www.persistencemarketresearch.com/market-research/3d-cell-cultures-market.asp 3D ...
(Date:7/31/2015)... China Cord Blood Corporation (NYSE: CO) ("CCBC" ... provider of cord blood collection, laboratory testing, hematopoietic stem ... that the Company has filed its Annual Report on ... The filed Form 20-F includes audited financial statements for ... 20-F can be accessed by visiting the U.S. Securities ...
(Date:7/30/2015)... ... July 30, 2015 , ... Tronics, ... as Sales & Marketing Director. , With more than 25 years of ... for reinforcing Tronics’ business development activities worldwide. He brings to the company his ...
(Date:7/30/2015)... July 30, 2015   Senomyx , Inc. (NASDAQ: ... science technologies to discover, develop, and commercialize novel flavor ... today reported financial results for the second quarter 2015. ... 2015, we remain on track to achieve our commercial ... Executive Officer of the Company. "Since our last quarterly ...
Breaking Biology Technology:Global 3D Cell Culture Market Will Reach US$ 2,717.6 Million by 2020: Persistence Market Research 2Global 3D Cell Culture Market Will Reach US$ 2,717.6 Million by 2020: Persistence Market Research 3Global 3D Cell Culture Market Will Reach US$ 2,717.6 Million by 2020: Persistence Market Research 4China Cord Blood Corporation Files Its Annual Report on Form 20-F 2Tronics appoints Francois Vieillard as Sales and Marketing Director 2SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 2SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 3SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 4SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 5SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 6SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 7SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 8SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 9
... PARK, N.C., June 14, 2011 Bayer CropScience ( ... top innovative crop science companies in the areas of ... announced the release of a video featuring the organization,s ... award-winning program, Making Science Make Sense (MSMS) . ...
... PAREXEL International Corporation (NASDAQ: PRXL ... Wells Fargo Healthcare Conference in Boston, MA.  James Winschel, Sr. ... presentation on PAREXEL at 2:00 p.m. ET on Wednesday, June ... will be available through the "Investors" section of ...
... industry delivered solid top- and bottom-line growth in 2010, with ... a row. Yet funding for research and ... firms in the sector, which tend to be pre-commercial stage ... development. This has placed new pressure on the traditional biotech ...
Cached Biology Technology:Bayer CropScience Releases Video About Making Science Make Sense Program At Durham Performance Learning Center 2Bayer CropScience Releases Video About Making Science Make Sense Program At Durham Performance Learning Center 3Bayer CropScience Releases Video About Making Science Make Sense Program At Durham Performance Learning Center 4Bayer CropScience Releases Video About Making Science Make Sense Program At Durham Performance Learning Center 5PAREXEL International to Present at Wells Fargo Healthcare Conference 2Despite Renewed Growth in 2010, Biotech Industry Faces R&D Challenges 2Despite Renewed Growth in 2010, Biotech Industry Faces R&D Challenges 3Despite Renewed Growth in 2010, Biotech Industry Faces R&D Challenges 4Despite Renewed Growth in 2010, Biotech Industry Faces R&D Challenges 5Despite Renewed Growth in 2010, Biotech Industry Faces R&D Challenges 6
(Date:7/7/2015)... , July 7, 2015 NXT-ID, Inc. (NASDAQ: ... on the growing mobile commerce market announces a revised version of ... week. The commercial will air on CNBC in New ... Angeles and San Francisco metro ... commercial focuses on Wocket,s ability to replace all the cards in ...
(Date:7/2/2015)... Research and Markets( http://www.researchandmarkets.com/research/jvft55/next_generation ) has ... Market by Application, Technology, Function & Geography - Global ... The next generation biometrics market is expected to ... 17.9% between 2015 and 2020 Travel & ... Safran SA ( France ), NEC ...
(Date:6/30/2015)... -- To bolster its efforts and commitment to fighting cyber ... addition of two new team members. ... David Raviv will act as head of strategic alliances. ... providing the most secure solutions for the enterprise market. ... Technologies, a provider of security and management products, which was ...
Breaking Biology News(10 mins):Wocket Smart Wallet Commercials Airing on CNBC to Showcase This Summer's Must- Have Tech Product 2Wocket Smart Wallet Commercials Airing on CNBC to Showcase This Summer's Must- Have Tech Product 3Next Generation Biometrics Market 2015 - Global Forecast to 2020 with Safran, NEC, 3M Cogent, Fujitsu & Suprema Dominating the $24 Billion Market 2Next Generation Biometrics Market 2015 - Global Forecast to 2020 with Safran, NEC, 3M Cogent, Fujitsu & Suprema Dominating the $24 Billion Market 3HYPR Corp. Expands Biometric Authentication Team with Enterprise All Stars 2HYPR Corp. Expands Biometric Authentication Team with Enterprise All Stars 3
... This release is available in French . ... in collaboration with Nova Scotia Agricultural College, have discovered what ... double the lifespan of Christmas trees in homes. The authors ... journal Trees . The researchers have identified a ...
... is not just a feature unique to humans and ... revealed that also brown trout have individual characters and ... Department of Zoology at the University of Gothenburg has ... from watercourses on the west coast of Sweden. ...
... of Change, literally took 100 years to write. The first ... It was repeated from 1956-1958 and a technical book was ... that first survey was approaching, ornithologists Mike Ward, Jeff Walk, ... to do it again and write a book, this time ...
Cached Biology News:Researchers discover a way to delay Christmas tree needle loss 2New book on 100 years of Illinois birds 2New book on 100 years of Illinois birds 3New book on 100 years of Illinois birds 4
Human beta IG-H3 MAb (Clone 348506) Keywords: BIGH3, betaIG-H3 Protein Family: Extracellular Matrix Molecules...
Human Cystatin F MAb (Clone 292103)...
Rat CNTF R alpha Affinity Purified Polyclonal Ab...
... an inhibitor of caspase-3/7 ... of inhibitor required to ... be determined empirically for ... inhibitor is sufficient to ...
Biology Products: