Navigation Links
Scientists design, control movements of molecular motor
Date:1/10/2013

ATHENS, Ohio (Jan. 10, 2013)An international team of scientists has taken the next step in creating nanoscale machines by designing a multi-component molecular motor that can be moved clockwise and counterclockwise. Although researchers can rotate or switch individual molecules on and off, the new study is the first to create a stand-alone molecular motor that has multiple parts, said Saw-Wai Hla, an Ohio University professor of physics and astronomy who led the study with Christian Joachim of A*Star in Singapore and CEMES/CNRS in France and Gwenael Rapenne of CEMES/CNRS.

It's an essential step in creating nanoscale devicesquantum machines that operate on different laws of physics than classical machinesthat scientists envision could be used for everything from powering quantum computers to sweeping away blood clots in arteries.

In the study, published in Nature Nanotechnology, the scientists demonstrated that they could control the motion of the motor with energy generated by electrons from a scanning tunneling microscope tip. The motor is about 2 nanometers in length and 1 nanometer high and was constructed on a gold crystal surface.

At a temperature of minus 315 degrees Fahrenheit, the motor could move independently through thermal excitation. When scientists cooled the sample to minus 450 degrees, the motor stopped rotating. The researchers selectively applied electron energy to different parts of the motor to prompt it to move clockwise and counterclockwise.

"If we want to build an actual device based on this motor, we would install electrodes on the surface to create an energy source," Hla said. To construct the molecular motor, the scientific team designed a stationary base of atoms that is connected to an upper moving part by one atom of ruthenium, which serves as the "ball bearing." The upper piece of the motor features five arms made of iron atoms. The researchers made one arm shorter than the others to be able to trac
'/>"/>

Contact: Andrea Gibson
gibsona@ohio.edu
740-597-2166
Ohio University
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Scientists defuse the Vietnam time bomb
2. Singapore scientists lead human embryonic stem cell study
3. Sheffield scientists shine a light on the detection of bacterial infection
4. Nanowiggles: Scientists discover graphene nanomaterials with tunable functionality in electronics
5. Scientists solve mystery of colorful armchair nanotubes
6. iBioSeminars and iBioMagazine: Free, Online Biology Seminars and Short Talks by Leading Scientists
7. Chinese Scientists Zhen-Yi Wang and Zhu Chen Awarded 7th Annual Szent-Gyorgyi Prize for Progress in Cancer Research
8. Scientists decode brain waves to eavesdrop on what we hear
9. Receptos Scientists Publish Determination of a High Resolution Sphingosine 1-Phosphate Receptor 1 Structure in Science
10. Scientists learn how to out run damage with imaging technique
11. Design eye for the science guy: Drop-in clinic helps scientists communicate data
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists design, control movements of molecular motor
(Date:8/21/2014)... August 21, 2014 His Majesty Willem-Alexander, ... , The Court of His Majesty Willem-Alexander, King of ... the Grand Opening of POET-DSM Advanced Biofuels’ Project LIBERTY ... 3. , The King will take part in the ... scheduled for 11 a.m.-12:20 p.m. and tour the plant. ...
(Date:8/21/2014)... , Aug. 21, 2014  Decision Resources Group ... Brazil and Mexico ... of several newly approved agents, the anticipated label ... and the launch of emerging biologics will substantially ... particular, the emerging IL-5 inhibitors will introduce a ...
(Date:8/21/2014)... KONG , Aug. 21, 2014  China Cord Blood ... announced its plan to release financial results for the ... 28, 2014, after market close in the US.  ... at 8:00 a.m. ET on Friday, August 29, 2014 ... overview of the Company,s recent developments, followed by a ...
(Date:8/21/2014)... (PRWEB) August 21, 2014 Ontotext ... today by Ontotext . Now the same ... analysis of structured and unstructured data is available to ... cost of enterprise technology. Organizations that do not have ... data management can use S4 since there is no ...
Breaking Biology Technology:His Majesty Willem-Alexander, King of the Netherlands, to Attend Project LIBERTY opening 2His Majesty Willem-Alexander, King of the Netherlands, to Attend Project LIBERTY opening 3Asthma Agents Currently Face a Suboptimal Coverage Environment in Brazil and Mexico, and as the Treatment Armamentarium Expands, Competitiveness Will Further Intensify 2Asthma Agents Currently Face a Suboptimal Coverage Environment in Brazil and Mexico, and as the Treatment Armamentarium Expands, Competitiveness Will Further Intensify 3China Cord Blood Corporation to Report First Quarter of Fiscal 2015 Financial Results 2Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 2Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 3Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 4
... 26, 2011 Reportlinker.com announces that a ... its catalogue: Future Directions ... http://www.reportlinker.com/p0511976/Future-Directions-in-Regenerative-Medicine.html?utm_source=prnewswire&utm_medium=pr&utm_campaign=Biological_Therapy Big Pharma has ... 2008, Pfizer and Novartis in 2009, and ...
... SAN DIEGO, May 26, 2011 Biomatrica, Inc., the ... announced the appointment of Dr. James A. Robb to ... is a well respected pathologist and scientist with over ... virology, and genetics. He currently serves as a Governor ...
... class of decorative, flower-like defects in the nanomaterial graphene ... unique electrical and mechanical properties, according to researchers at ... Georgia Tech. In a new paper,* the team for ... that could occur naturally or be induced to occur ...
Cached Biology Technology:Reportlinker Adds Future Directions in Regenerative Medicine 2Reportlinker Adds Future Directions in Regenerative Medicine 3Reportlinker Adds Future Directions in Regenerative Medicine 4Reportlinker Adds Future Directions in Regenerative Medicine 5Reportlinker Adds Future Directions in Regenerative Medicine 6Biomatrica Announces the Appointment of Dr. James A. Robb as a Member of the Scientific Advisory Board 2Biomatrica Announces the Appointment of Dr. James A. Robb as a Member of the Scientific Advisory Board 3Defect in graphene may present bouquet of possibilities 2
(Date:8/21/2014)... intake, health and quality of life of older adults ... the University of Waterloo receiving close to $1.5 million ... (CIHR). , Professor Heather Keller, of the Faculty ... research chair in nutrition and aging, will receive $979,000 ... in long-term care homes are poorly nourished. The project ...
(Date:8/21/2014)... a finding that has implications for life in other ... the solar system, LSU Associate Professor of Biological Sciences ... Science Foundation, or NSF, this week published a paper ... that lies 800 meters (2600 feet) beneath the surface ... ecosystems.", Given that more than 400 subglacial lakes and ...
(Date:8/21/2014)... Ever heard of the water window? It consists of ... are not absorbed by the water in biological tissues. ... develop coherent radiations within the water window. These could ... a high-contrast image of the biological samples or to ... study identifies the physical mechanism needed to efficiently generate ...
Breaking Biology News(10 mins):Grants will fund landmark aging research at Waterloo 2800 meters beneath Antarctic ice sheet, subglacial lake holds viable microbial ecosystems 2800 meters beneath Antarctic ice sheet, subglacial lake holds viable microbial ecosystems 3800 meters beneath Antarctic ice sheet, subglacial lake holds viable microbial ecosystems 4Water window imaging opportunity 2
... available in German . Flowers need water ... to gather energy from earth and water. Members of Professor Dr. ... groundbreaking discovery that one plant has another way of doing this. ... green alga Chlamydomonas reinhardtii , not only engages in photosynthesis, ...
... WINSTON-SALEM, N.C. Nov. 20, 2012 If you are ... then you have probably tried everything from warm milk ... with varying degrees of success and side effects. But what ... through ,balancing, brain activity? Researchers at Wake Forest ...
... , Sequencing historical DNA to tackle wheat,s worst ... extremes, Leaving a bad taste in aphids, mouths, Reducing ... Exploiting wild wheat to produce better Indian varieties , ... a unique 16M initiative that will harness bioscience to ...
Cached Biology News:Algae can draw energy from other plants 2Music to the ears for a good night's sleep? 2Music to the ears for a good night's sleep? 3Major international push to maximize bioscience research to help world's poorest farmers 2Major international push to maximize bioscience research to help world's poorest farmers 3Major international push to maximize bioscience research to help world's poorest farmers 4
Screening test for the detection of Salmonella sp. by means of DNA amplification, subsequent molecular hybridization and detection on a microtitre plate....
... 10X PCR Enhancer (with betaine) substantially ... sensitivity and specificity for amplification of ... Enhancer in PCR eliminates the base-pair ... enzyme?s thermal stability, suppresses pauses of ...
... be used with all 96-well ... stacking of covered plates ... with automated systems ... are available for use with ...
Designed for use with all 96-well SPRI reagent kits. Used with round bottom 96-well microplates, and 96-well thermal cycling plates....
Biology Products: