Navigation Links
New nanocrystalline diamond probes overcome wear
Date:11/11/2009

Researchers at the McCormick School of Engineering and Applied Science at Northwestern University have developed, characterized, and modeled a new kind of probe used in atomic force microscopy (AFM), which images, measures, and manipulates matter at the nanoscale.

Using diamond, researchers made a much more durable probe than the commercially available silicon nitride probes, which are typically used in AFM to gather information from a material, but can wear down after several uses.

Horacio Espinosa, James and Nancy Farley Professor of Manufacturing and Entrepreneurship, and his graduate student Ravi Agrawal have shown that diamond atomic force microscopy probes are 10 times more durable than silicon nitride probes.

Their results were recently published in the Journal of Applied Physics.

"It is well-known that diamond should perform much better than other probe materials," says Espinosa. "However, rigorous quantification of wear and the development of models with predictive capabilities have remained elusive. It was exciting to discover that diamond probes are an order of magnitude more wear resistant than silicon nitride probes and that a single model can predict wear for both materials."

In the study, wear tests were performed using AFM probes made from different materials silicon nitride, ultrananocrystalline diamond (UNCD) and nitrogen-doped UNCD by scanning them across a hard UNCD substrate. Argonne National Laboratory, where UNCD was originally invented, also supported this work by providing nitrogen-doped UNCD. Probes were made in house and also provided by Advanced Diamond Technologies, Inc. (ADT).

"It took quite an effort to develop UNCD into a sharp tip. We needed to optimize the initial stages of diamond growth to form nanometer structures with consistent results. It is really nice to find that this work paid off to demonstrate that UNCD probes are quite wear resistant, which we predicte
'/>"/>

Contact: Kyle Delaney
k-delaney@northwestern.edu
847-467-4010
Northwestern University
Source:Eurekalert

Page: 1 2

Related biology technology :

1. NC State breakthrough results in super-hard nanocrystalline iron that can take the heat
2. A breakthrough toward industrial production of fluorescent nanodiamonds
3. Nanoscience Instruments, Inc. Introduces All-Diamond AFM Probes
4. University of Pennsylvania engineers reveal what makes diamonds slippery at the nanoscale
5. Magellan Biosciences Names Steven E. Diamond, PhD, Chief Scientific Officer
6. Carbon Design Innovations, Inc. Introduces Carbon Nanotube Probe Technology for Atomic Force Microscopy, CNT-Probes Deliver New Level of AFM Imaging Performance
7. Intrinsic Bioprobes, Inc. Enters into a $1.27M Contract with the National Cancer Institute to Develop Multiplex Mass Spectrometric Immunoassays for Detection of Low Abundance Cancer-Related Proteins
8. Nanoscience Instruments, Inc. Announces Distribution of Nascatec's Complete Line of Unique AFM Probes and Sensors
9. Carbon Nanoprobes, Inc Announces Production Agreement With Leading MEMS Foundry
10. Researchers: Molecular forklifts overcome obstacle to smart dust
11. GlaxoSmithKline Offers New Purchasing Options to Help Employers Overcome Barriers to Pandemic Stockpiling of Relenza(R)
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... YORK , Sept. 30, 2014 ... - 2014 Summary Global Markets Direct,s, ... - 2014, provides an overview of the Pacific ... This report provides comprehensive information on the ... LLC,s, complete with comparative analysis at various stages, ...
(Date:9/30/2014)... YORK , Sept. 30, 2014 ... and segments with highest potential revenues Do you ... updated report gives you revenue predictions for those ... For those therapies you find financial data, R&D ... analysis you get sales forecasts to 2024 at ...
(Date:9/30/2014)... September 30, 2014 Shimadzu Scientific ... an easy-to-use and highly precise tool for measuring ... considerable elongation. With 1000-mm maximum movement distance, the ... for a gauge length of 10 mm. In ... accuracy above 50-mm stroke and within +/- 100 ...
(Date:9/30/2014)... YORK , Sept. 30, 2014 ... to kill nematodes. Nematodes are microscopic parasitic roundworms, ... water, and inside other plants and animals. Nematicides ... volatility or other properties promoting migration through the ... more than 1,000 plant-parasitic nematodes. With more than ...
Breaking Biology Technology:Pacific Northwest Biotechnology, LLC - Product Pipeline Review - 2014 2Pacific Northwest Biotechnology, LLC - Product Pipeline Review - 2014 3Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 2Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 3Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 4Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 5Shimadzu’s New Long-Travel Extensometer Increases Precision for Soft Material Testing 2Nematicides Market by Types (Fumigants, Organophosphates, Carbamate and Bio-Nematicides), Applications (Agrochemicals, Industrial, and Others), and Geography (North America, Europe, Asia-Pacific & ROW) - Global Trends & Forecasts to 2019 2
... ... as the sample collection kit for MyCeliacID™ a saliva-based genetic test dedicated to celiac ... sample collection challenges inherent with traditional collection methods which are often too costly and ... Ottawa, ...
... , CANTON, Mass., Aug. 18 ... than 500 pieces of state-of-the-art R&D equipment that is no ... EquipNet as the exclusive seller and listed the premium lab ... online venue for pre-owned equipment. , , ...
... , , , , ... Inc., (NYSE: CRY ) an implantable biological medical device ... of the CryoPatch((R)) SG pulmonary human cardiac patch since FDA clearance. ... of Michigan C.S. Mott Children,s Hospital in Ann Arbor, MI by ...
Cached Biology Technology:DNA Genotek Sample Collection Kit Selected by Prometheus for MyCeliacID™ Genetic Test 2DNA Genotek Sample Collection Kit Selected by Prometheus for MyCeliacID™ Genetic Test 3Massive Inventory of Premium Lab & Analytical Equipment Now Available 2CryoLife Announces Implants of First FDA-Cleared SynerGraft(R) Processed Human Cardiac Patch Material 2CryoLife Announces Implants of First FDA-Cleared SynerGraft(R) Processed Human Cardiac Patch Material 3CryoLife Announces Implants of First FDA-Cleared SynerGraft(R) Processed Human Cardiac Patch Material 4
(Date:9/30/2014)... news release is available in German . ... in their behavioural response to risky situations such as ... for Ornithology now found in a long-term study on ... with both metabolic rate and ambient temperature. High metabolic ... behaviour, as in these scenarios birds were more likely ...
(Date:9/30/2014)... Ill. (September 30, 2014) People who suffer from ... do to control their asthma besides properly taking medications ... new article in the Annals of Allergy, Asthma ... College of Allergy, Asthma and Immunology (ACAAI), asthma sufferers ... their lifestyle. The woman described in the Annals article ...
(Date:9/29/2014)... confirms that the exposure to tar tended to be ... cigarettes. Similarly, exposure to nicotine tended to be ... of cigarette in several countries around the world. Previous ... chemicals in the smoke of these cigarettes are lower ... of chemicals in the smoke are not necessarily linked ...
Breaking Biology News(10 mins):Risky metabolism 2Asthma symptoms kicking up? Check your exposure to air pollution 2Slim cigarette smokers not exposed to more harmful chemicals 2
... FL. If you think you eat healthier at the Sunburst ... be wrong. You could be a victim of the "Health ... Consumer Research conference in Jacksonville, FL, showed that people eating ... 56% as many calories as they actually did. The ...
... direct evidence that taking up smoking results in epigenetic changes ... reported at the 35th Congress of the European Society for ... smoking and cancer has been established for decades, explained Dr ... Cancer Studies, Birmingham, who presented the results. Smoking is the ...
... lung cancer patients seem to live longer and experience delays ... cancer-associated molecule called MET is added to treatment with erlotinib, ... Dr David Spigel, Director of lung cancer research for the ... findings at the 35th Congress of the European Society for ...
Cached Biology News:Study reveals cancer-linked epigenetic effects of smoking 2New targeted therapy adds benefit to erlotinib in some patients with advanced lung cancer 2
Component of HyperMu™ Insertion Kit...
Request Info...
... , Maintenance 112 days/each ... Immunizations/Boost injections x5 /each , ... , Production bleed (25 ml blood =12 ... 100 ml blood (~50 ml serum) x1 each , ...
... g protein in 200 l SDS-PAGE Western blotting ... Abelson transformed macrophage cells, whole ... should be stored at -20C ... sample vial should be boiled ...
Biology Products: