Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Scientists design, control movements of molecular motor: Study offers blueprint for creating machines at the nanoscale

This illustration shows the structure of the molecular motors. (Credit: Saw-Wai Hla)
This illustration shows the structure of the molecular motors.

(Credit: Saw-Wai Hla)

Abstract:
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.

Scientists design, control movements of molecular motor: Study offers blueprint for creating machines at the nanoscale

Athens, OH | Posted on January 10th, 2013

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 devices—quantum machines that operate on different laws of physics than classical machines—that scientists envision could be used for everything from powering quantum computers to sweeping away blood clots in arteries.

This illustration shows the structure of the molecular motors. (Credit: Saw-Wai Hla)

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 track the motion of the machine. The entire device is held upright by using sulfur as an "atomic glue" to secure the motor to the gold surface, Hla explained.

The scientists now plan to use this model to build more complex machines with components that could be automated, Hla said.

The study was funded by the AUTOMOL project, the U.S. Department of Energy, the A*STAR Atom Tech VIP programme phase III, CNRS and the University Paul Sabatier of Toulouse.

In addition to Hla, Joachim and Rapenne, the study authors include U. Perera, H. Kersell and Y. Zhang of Ohio University; G. Vives, J. Echeverria and M. Grisolia of CEMES/CNRS, and F. Ample of IMRE, A*STAR in Singapore.

####

For more information, please click here

Contacts:
Saw-Wai Hla


Christian Joachim


Andrea Gibson
director of research communications
(740) 597-2166

Copyright © Ohio University

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

Dowload article:

Related News Press

News and information

Optimization of alloy materials: Diffusion processes in nano particles decoded November 13th, 2018

GLOBALFOUNDRIES, indie Semiconductor Deliver Performance-Enhanced Microcontrollers for Automotive Applications: 55nm LPx platform, with SST’s highly reliable embedded SuperFlash®, increases performance and energy efficiency for automotive applications November 13th, 2018

GLOBALFOUNDRIES, indie Semiconductor Deliver Performance-Enhanced Microcontrollers for Automotive Applications: 55nm LPx platform, with SST’s highly reliable embedded SuperFlash®, increases performance and energy efficiency for automotive applications November 13th, 2018

European Commission Project Creates Pilot Line for Companies to Develop Mid-Infrared Devices: Companies Can Submit Proposals for Possible Matching Funds To Help Develop Prototypes November 13th, 2018

Govt.-Legislation/Regulation/Funding/Policy

European Commission Project Creates Pilot Line for Companies to Develop Mid-Infrared Devices: Companies Can Submit Proposals for Possible Matching Funds To Help Develop Prototypes November 13th, 2018

Unlocking the Secrets of Metal-Insulator Transitions: X-ray photon correlation spectroscopy at NSLS-II's CSX beamline used to understand electrical conductivity transitions in magnetite November 8th, 2018

Physicists name and codify new field in nanotechnology: ‘electron quantum metamaterials:’ UC Riverside’s Nathaniel Gabor and colleague formulate a vision for the field in a perspective article November 5th, 2018

Nanotech Artisans Sculpt with DNA November 5th, 2018

Molecular Machines

How to mass produce cell-sized robots: Technique from MIT could lead to tiny, self-powered devices for environmental, industrial, or medical monitoring October 24th, 2018

How swarms of nanomachines could improve the efficiency of any machine September 28th, 2018

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

Measuring the nanoworld September 4th, 2018

Molecular Nanotechnology

How to mass produce cell-sized robots: Technique from MIT could lead to tiny, self-powered devices for environmental, industrial, or medical monitoring October 24th, 2018

How swarms of nanomachines could improve the efficiency of any machine September 28th, 2018

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

Measuring the nanoworld September 4th, 2018

Quantum Computing

IEDM - CEA-Leti Will Present 11 Papers and Host Workshop on Disruptive Technologies for Data Management November 7th, 2018

Researchers managed to prevent the disappearing of quantum information September 14th, 2018

Tiny camera lens may help link quantum computers to network September 14th, 2018

New photonic chip promises more robust quantum computers September 14th, 2018

Discoveries

Optimization of alloy materials: Diffusion processes in nano particles decoded November 13th, 2018

Unlocking the Secrets of Metal-Insulator Transitions: X-ray photon correlation spectroscopy at NSLS-II's CSX beamline used to understand electrical conductivity transitions in magnetite November 8th, 2018

WSU researchers develop new technique to understand biology at the nanoscale November 7th, 2018

A record-long polymer DNA negative November 6th, 2018

Announcements

Optimization of alloy materials: Diffusion processes in nano particles decoded November 13th, 2018

GLOBALFOUNDRIES, indie Semiconductor Deliver Performance-Enhanced Microcontrollers for Automotive Applications: 55nm LPx platform, with SST’s highly reliable embedded SuperFlash®, increases performance and energy efficiency for automotive applications November 13th, 2018

GLOBALFOUNDRIES, indie Semiconductor Deliver Performance-Enhanced Microcontrollers for Automotive Applications: 55nm LPx platform, with SST’s highly reliable embedded SuperFlash®, increases performance and energy efficiency for automotive applications November 13th, 2018

European Commission Project Creates Pilot Line for Companies to Develop Mid-Infrared Devices: Companies Can Submit Proposals for Possible Matching Funds To Help Develop Prototypes November 13th, 2018

Research partnerships

The National Graphene Association Is Excited To Announce A New Affiliate Partnership With Graphene Engineering Innovation Centre (GEIC) November 7th, 2018

2-D magnetism: Atom-thick platforms for energy, information and computing research: Scientists say the tiny 'spins' of electrons show potential to one day support next-generation innovations in many fields October 31st, 2018

Tiny light detectors work like gecko ears October 30th, 2018

Leti Middleware Will Be Core of Fog Platform for Decentralized Cloud-to-Edge AI: DECENTER Project to Integrate IoT, AI, the Cloud, Edge, Fog Computing and Smart Contracts Tied Together with Secure Blockchain in ‘New Ecosystem’ for On-Demand Edge Computing October 26th, 2018

Quantum nanoscience

Physicists name and codify new field in nanotechnology: ‘electron quantum metamaterials:’ UC Riverside’s Nathaniel Gabor and colleague formulate a vision for the field in a perspective article November 5th, 2018

2-D magnetism: Atom-thick platforms for energy, information and computing research: Scientists say the tiny 'spins' of electrons show potential to one day support next-generation innovations in many fields October 31st, 2018

A New Way to Measure Nearly Nothing: NIST prototype design uses ultracold trapped atoms to measure pressure October 22nd, 2018

Quantum mechanics work lets oil industry know promise of recovery experiments September 28th, 2018

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project