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:8/29/2014)... A major challenge before new biotechnology ... realm of Boston-Cambridge, is gaining visibility that can lead ... the Director of Boston’s Adult Stem Cell Technology Center, ... visibility of his company an important priority since he ... to a social media marketing campaign launched ...
(Date:8/28/2014)... City, CA (PRWEB) August 28, 2014 ... sanitation products for the food processing industry, is asking ... a side-by side comparison of the E2 soap they’re ... E2 Sanitizing Foam Soap . Hand hygiene is ... in the food processing environment. Six key criteria are ...
(Date:8/28/2014)... A new research platform uses a laser ... structures undergoing stress and heating, an approach ... for microelectronics and batteries., This new technique, ... how heating and the surface stress of ... have discussed the merits of surface-stress influence ...
(Date:8/28/2014)... 28, 2014 The ability for organizations ... that will allow individuals to perform at the highest ... for employers looking to compete in this post–recession era. ... this trend, as the sector increasingly focuses on the ... which will have real results on the organization's development ...
Breaking Biology Technology:The Adult Stem Cell Technology Center, LLC Participates in Multiple Stem Cell and Regenerative Medicine Conferences Before Year End 2The Adult Stem Cell Technology Center, LLC Participates in Multiple Stem Cell and Regenerative Medicine Conferences Before Year End 3The Adult Stem Cell Technology Center, LLC Participates in Multiple Stem Cell and Regenerative Medicine Conferences Before Year End 4Best Sanitizers, Inc. Asks Food Industry Professionals: With Fall Harvest On the Way, Is Your E2 Hand Soap Up to the Task? 2New analytical technology reveals 'nanomechanical' surface traits 2New analytical technology reveals 'nanomechanical' surface traits 3Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 2Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 3
... N.Y., April 9, 2008 Genetic Engineering,and Biotechnology ... podcast,with Robert Langer, Ph.D., on New Polymeric Drug ... EDT, Dr. Langer is institute professor, chemical ... is the foremost,pioneer and innovator in modern drug ...
... for Targeted Cancer Drugs ... -, HOPKINTON, Mass., April 9, 2008 ... announced a partnership with Horizon,Discovery Ltd. (Cambridge, UK) ... cell line and screening capabilities for testing,single drugs ...
... Continues to Fortify Position in Emerging RNAi ... Interfering RNA (siRNA) Structural IP, PALO ... Corporation,a leading developer of targeted, systemic RNA ... licensed key intellectual,property (IP) covering certain efficacy-enhancing ...
Cached Biology Technology:Genetic Engineering and Biotechnology News (GEN) Presents Exclusive Podcast with Robert Langer, Ph.D. on New Polymeric Drug Delivery Systems 2Caliper Life Sciences Forms Alliance With Horizon Discovery to Provide Enhanced Solutions for Cancer Research Based on Isogenic Cell Lines 2Caliper Life Sciences Forms Alliance With Horizon Discovery to Provide Enhanced Solutions for Cancer Research Based on Isogenic Cell Lines 3Intradigm Licenses Key Next Generation RNA Interference (RNAi) Intellectual Property From University of Massachusetts Medical School 2Intradigm Licenses Key Next Generation RNA Interference (RNAi) Intellectual Property From University of Massachusetts Medical School 3Intradigm Licenses Key Next Generation RNA Interference (RNAi) Intellectual Property From University of Massachusetts Medical School 4
(Date:8/28/2014)... handful of bacterial culprits that may drive inflammatory bowel ... using patients, own intestinal immune responses as a guide. ... journal Cell . , Trillions of bacteria exist ... role in the development and progression of IBD. Yet ... species affect a person,s susceptibility to IBD and its ...
(Date:8/28/2014)... The zebrafish, a ... pattern of blue stripes alternating with golden stripes. Three major ... cells emerge during growth in the skin of the tiny ... the characteristic colour pattern. ,While it was known ... proper stripes, the embryonic origin of the pigment cells that ...
(Date:8/28/2014)... MD FASEB MARC (Maximizing Access to Research Careers) ... American Society of Human Genetics from October 18 ... are meant to promote the entry of students, post ... of the basic science community and to encourage the ... Human Genetics. This year MARC conferred 16 awards ...
Breaking Biology News(10 mins):Yale study identifies possible bacterial drivers of IBD 2How the zebrafish gets its stripes 2How the zebrafish gets its stripes 3
... in the Ohio State University Comprehensive Cancer Center say ... cause cancer in mice. The discovery offers new insight ... lymphoma and at the same time underscores the powerful ... in cell signaling pathways active in carcinogenesis. , ...
... year, East Coast fever destroys the small farmer's dream of ... and costing some $200 million annually, this tick-borne disease rages ... an international team of scientists has taken the first major ... work, published in the February 13-17 early online edition of ...
... have identified the job of one of the most ... scientists because it is present in nearly every organism, ... yet, in laboratory experiments, its function has remained a ... enzyme known as DinB DNA polymerase is specialized for ...
Cached Biology News:Single microRNA causes cancer in transgenic mouse 2Single microRNA causes cancer in transgenic mouse 3Genomics-based vaccine could prevent deadly cattle disease 2Genomics-based vaccine could prevent deadly cattle disease 3Common enzyme is a key player in DNA repair 2Common enzyme is a key player in DNA repair 3
... Vector NTI Advance 9.1 ... and highly integrated application ... and molecular biology data ... readily available for export. ...
...
Borosilicate Glass. Certified for use with the Beacon 2000 Systems, 1,000 tubes/case...
Standard 2" and 3" Fiberboard Boxes can be sold separately or with 16, 25, 36, 49, 64, 81 or 100 cell dividers. Fiberboard boxes can also be ordered with corresponding freezer racks...
Biology Products: