Navigation Links
Charging ahead: University of Houston team revealing secrets of electricity-producing materials
Date:7/27/2009

ct even larger," Sharma says.

For example, the piezoelectricity in barium titanate can be increased by 300 percent when the material is reduced to a 2-nanometer-beam and pressure is applied. "Thus, you'll take an ordinary piezoelectric material and really give it some juice," he says.

Sharma underscores the flexoelectric effect is a function of size and the smaller the better, at least for generating piezoelectric power. Materials with nanoscale features such as nanoscale thin plates stacked on each other or materials with particles or holes the size of a few nanometers exhibit a much larger flexoelectric effect, he says.

Ramanan Krishnamoorti, chairman of the department of chemical and biomolecular engineering, is working with Sharma to embed classes of nanostructures in polymers to create unusual types of piezoelectrics.

Meanwhile, Sharma and professor Ken White recently reported that the electrical activity caused by flexoelectricity also affects a material's resiliency. They tested their theory that the elasticity of a material would be quite altered by flexoelectricity-caused electrical activity by poking the material with a sophisticated needle.

"We basically predicted that when you poke it, because of this electrical activity, depending upon how big a crater you create, your elastic behavior will change. It's not supposed to. Ordinarily, whether you make a big crater or small crater, if you calculate how stiff it is or soft it is, it'll give you the same answer a constant," Sharma says.

White and Sharma conducted several experiments on single crystals of materials.

"By monitoring the stiffness of the material as the crater became larger and larger," White says, "we discovered a change in elasticity relative to size, which could only be explained by flexoelectric effect."

Though a fair amount of research on piezoelectrics has been done, White says, the fabrication of piezoelectri
'/>"/>

Contact: Angela Hopp
ahopp@uh.edu
713-743-8153
University of Houston
Source:Eurekalert

0

GOOD

Page: 1 2 3

Related biology technology :

1. University of Lodz Invests in the Unique Cellaxess(R)HT System for Research on Multidrug Resistance Genes in Cancer
2. Axial Biotech Enters Partnership with the University of Utah to Utilize the Utah Population Database to Develop Personalized Diagnostic Tests for Spine Disorders
3. Hygeia Therapeutics Signs an Exclusive License with Yale University for Potent, Safe Topical Anti-Androgens
4. University of Florida Shands Cancer Center Selects OnCore(r) to Support its Collaborative Research Goals
5. Intruder alert: Tel Aviv Universitys Smart Dew will find you!
6. Kornberg Associates Architects Selected to Develop Design for New Stanford University Imaging Center
7. Calvert Research Licenses Novel Technology to Treat Age Related Macular Degeneration from Tulane University
8. University of Texas Picosatellite to be launched from space shuttle to begin milestone mission
9. University of Michigan Installs Neuro Kinetics I-Portal(R) NOTC System
10. HUYA Bioscience Announces Strategic Collaboration With the Shenyang Pharmaceutical University
11. Platoon Fitness Announces Platoon University
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/17/2013)... 17, 2013 The paradigm of ‘one ... systems that can help predict the adverse and therapeutic ... Stepaniants, Head of Computational Biology at the Genomics Laboratory, ... to ensure high-quality genomics when used as part of ... to complex data sets to identify key clinical targets ...
(Date:5/17/2013)... 17, 2013 Tooth decay is an epidemic ... signs of the disease. The World Health Organization says that ... of adults have cavities. What are the long-term effects of ... a strong connection between the oral bacterial imbalance and serious ... so rampant, yet it is also 100% preventable? Answer: there ...
(Date:5/16/2013)... In late 2012, Dr. Sarah Hart, of Palm ... China about Appearance Medicine . Although Dr. Hart regularly ... trip to lecture in China, and quite a different experience ... to 12 and 7 million people respectively. Interest in cosmetic ... point in time. As Dr. Hart passed through the Fuzhou ...
(Date:5/16/2013)... May 16, 2013  HealthSparq, a trusted provider ... nation,s largest regional health plans, will debut a ... Plans (AHIP) Institute 2013 conference on June 13. ... showing how health insurance companies across the country ... and marketplace demands for increased healthcare transparency. ...
Breaking Biology Technology:Seeing the Future: How a Revolutionary New Bacterial Screening Device Can Predict a Patient’s Future for Tooth Decay 2Seeing the Future: How a Revolutionary New Bacterial Screening Device Can Predict a Patient’s Future for Tooth Decay 3HealthSparq to Reveal New Healthcare Transparency Benchmark Study at AHIP Institute 2013 2HealthSparq to Reveal New Healthcare Transparency Benchmark Study at AHIP Institute 2013 3
... Inc. (OTC/BB: TBIO) today announced the following Webcast:What: ... Business Update Conference CallWhen: , Thursday, May 12, 2011 ... Live over the Internet -- Simply log on to ... 402-452-5400To access the call via telephone, call 800-895-0198 from ...
... Sciences, Inc. (NASDAQ: CALP ), a leading ... life sciences research for personalized medicine, will be hosting ... 17th and 18th.  This annual event brings together global ... the technologies and discoveries that are transforming the detection ...
... May 5, 2011 Vanda Pharmaceuticals Inc. (Vanda) (NASDAQ: ... the development and commercialization of products for central nervous ... the first quarter ended March 31, 2011. ... have made to date in 2011," said Mihael H. ...
Cached Biology Technology:Transgenomic to Hold First Quarter Financial Results Conference Call on May 12, 2011 2Caliper Owners Group and Investor Meeting to Highlight Technologies Enabling Personalized Medicine 2Vanda Pharmaceuticals Reports First Quarter 2011 Results 2Vanda Pharmaceuticals Reports First Quarter 2011 Results 3Vanda Pharmaceuticals Reports First Quarter 2011 Results 4Vanda Pharmaceuticals Reports First Quarter 2011 Results 5Vanda Pharmaceuticals Reports First Quarter 2011 Results 6Vanda Pharmaceuticals Reports First Quarter 2011 Results 7Vanda Pharmaceuticals Reports First Quarter 2011 Results 8
(Date:5/16/2013)... , May 16, 2013 Reportlinker.com ... is available in its catalogue: ... Opportunities, 2018 http://www.reportlinker.com/p01181929/Global-Biometric-Systems-Market-Forecast--Opportunities-2018.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=Security_Systems ... old security practises such as photographs, passwords ... of biometric technologies in last few years. ...
(Date:5/15/2013)... In the largest clinical trial to date to examine ... carriers with diseases other than breast and ovarian cancer, ... against advanced pancreatic and prostate cancers. Results of the ... Medicine at the University of Pennsylvania and Sheba Medical ... the American Society of Clinical Oncology,s annual meeting in ...
(Date:5/15/2013)... frontier explorer and world-renowned filmmaker James Cameron has been ... Diego as the recipient of the 2013 Nierenberg Prize ... a presentation on his record-setting DEEPSEA CHALLENGE expedition and ... Friday, May 31, on the UC San Diego campus. ... probe the mysteries and promise of the deep sea ...
Breaking Biology News(10 mins):Global Biometric Systems Market Forecast & Opportunities, 2018 2Global Biometric Systems Market Forecast & Opportunities, 2018 3Global Biometric Systems Market Forecast & Opportunities, 2018 4Global Biometric Systems Market Forecast & Opportunities, 2018 5Global Biometric Systems Market Forecast & Opportunities, 2018 6Global Biometric Systems Market Forecast & Opportunities, 2018 7PARP inhibitor shows activity in pancreatic, prostate cancers among patients carrying BRCA mutations 2James Cameron to be publicly honored with Scripps Nierenberg Prize 2James Cameron to be publicly honored with Scripps Nierenberg Prize 3James Cameron to be publicly honored with Scripps Nierenberg Prize 4
... the latest issue of the journal Nature, scientists at ... of the National Institutes of Health (NIH) describe a ... lead to new ways of thinking about how to ... , Led by immunologist Ronald Germain, M.D., Ph.D., the ...
... A pig used for research at the University of ... will provide the first sequence of the swine genome ... $10 million grant from the U.S. Department of Agriculture ... , Lawrence B. Schook, a professor of animal sciences ...
... Scientists at The University of Texas at Austin have developed ... that surrounds bacteria and plays a role in infection and ... during the course of an infection, cloaking the bacteria from ... the sugars were too slow to catch these rapid changes. ...
Cached Biology News:Chemical guidance of T cells leads to immunologic memory and long-term immunity 2Chemical guidance of T cells leads to immunologic memory and long-term immunity 3Illinois pig to make history as source of first complete swine genome 2Scientists seek to unwrap the sweet mystery of the sugar coat on bacteria 2
Can be used for the quantitative recovery of small amounts of nucleic acids within dilute solutions. 5mg/ml...
... controls for monitoring Aldolase tests. 2 ... with targeted manufacturing values at 4 ... 3 IU/L. 30-day shelf life ... C. Level 1: 3 x 3 ...
APOPTAG® Plastic Coverslips are designed to be custom fitted to the specific APOPTAG® kit application. Each coverslip has 2.5 x 1 dimensions....
Recombinant Mouse sTNF RII/TNFRSF1B...
Biology Products: