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:9/17/2014)... 2014 Escape Alert, LLC . filed international ... will alert owners if their pet has escaped and enable them ... microchip in the pet’s body. This is the first implantable ... have been around for many years, they are passive until read ... track a pet’s location or alert the owner that the pet ...
(Date:9/17/2014)... The Pistoia Alliance, a global ... barriers to innovation in life sciences R&D through ... Nitsche as Executive Director Business Development North America, ... reach. , Carmen joins the Pistoia Alliance from ... At Accelrys, she managed various life sciences and ...
(Date:9/16/2014)... , Sept. 16, 2014 This report analyzes the ... Product Segments: Software, Hardware, and Biocontent. The report provides separate ... Japan , Europe , ... , and Rest of World. Annual estimates and forecasts are ... historic analysis is provided for these markets. Market data and ...
(Date:9/16/2014)... 16, 2014 --The emerging field of molecular electronics ... next level, enabling the construction of tiny circuits ... individual molecules would take on the roles currently ... A team of researchers from five Japanese and ... use in small-scale electronics: a molecule called picene. ...
Breaking Biology Technology:Implantable Microchip for Pets with GPS Tracking - Patent Filed by Escape Alert, LLC. 2Implantable Microchip for Pets with GPS Tracking - Patent Filed by Escape Alert, LLC. 3Pistoia Alliance Expands Business Development with Appointment of Carmen Nitsche 2Global Bioinformatics Industry 2Global Bioinformatics Industry 3Global Bioinformatics Industry 4Global Bioinformatics Industry 5Global Bioinformatics Industry 6Global Bioinformatics Industry 7Global Bioinformatics Industry 8Global Bioinformatics Industry 9Global Bioinformatics Industry 10Global Bioinformatics Industry 11Global Bioinformatics Industry 12Global Bioinformatics Industry 13Global Bioinformatics Industry 14Global Bioinformatics Industry 15Global Bioinformatics Industry 16Global Bioinformatics Industry 17Global Bioinformatics Industry 18Global Bioinformatics Industry 19Global Bioinformatics Industry 20Global Bioinformatics Industry 21Global Bioinformatics Industry 22Global Bioinformatics Industry 23The future face of molecular electronics 2
... flies that spend a day buzzing around the "fly mall" ... makes their brain circuits grow dense new synapses and they ... stimulated brains, according to a new study by UW- Madison ... number of synapses -- the junctions between nerve cells where ...
... Biosciences, Inc. (NASDAQ: NBIX ) announced today that ... a Notice of Allowance for the Company,s proprietary Vesicular Monoamine ... that a composition of matter patent on NBI-98854 will have ... Additionally, on June 17, 2011, the Company held a ...
... test to detect the levels of vitamin B12 using your ... could help to avoid the potentially fatal symptoms of B12 ... 2011, in IOP Publishing,s Journal of Breath Research , ... more accurately measure vitamin B12. Vitamin B12 deficiency ...
Cached Biology Technology:New study: Even in flies, enriched learning drives need for sleep 2Neurocrine Biosciences Announces Notice of Allowance for Composition of Matter Patent on VMAT2 Inhibitor 2Neurocrine Biosciences Announces Notice of Allowance for Composition of Matter Patent on VMAT2 Inhibitor 3A breath of fresh air for detecting vitamin B12 deficiency 2
(Date:9/17/2014)... about complex social behavior by studying nonhuman mammals and ... , With their unusually large brains relative to their ... complex social environment---not merely in a large population of ... a dynamic setting of alliances and competitors. The same ... primates, and social carnivores, like hyenas and lions. , ...
(Date:9/16/2014)... YORK (17 September, 2014)More than $100 trillion in ... of annual carbon dioxide (CO2)a 40 percent reduction ... 2050 if the world expands public transportation, walking ... report released by the University of California, Davis, ... (ITDP). , Further, an estimated 1.4 million ...
(Date:9/16/2014)... Each tree species has its own bacterial identity. That,s ... from other institutions who studied the genetic fingerprints of ... Panamanian island. , "This study demonstrates for the first ... with different ecological strategies possess very different microbial communities ... a former postdoctoral researcher in the UO,s Institute of ...
Breaking Biology News(10 mins):Being social: Learning from the behavior of birds 2Global shift away from cars saves US$100 trillion, eliminates 1,700 MT of CO2 pollution 2Global shift away from cars saves US$100 trillion, eliminates 1,700 MT of CO2 pollution 3Global shift away from cars saves US$100 trillion, eliminates 1,700 MT of CO2 pollution 4Global shift away from cars saves US$100 trillion, eliminates 1,700 MT of CO2 pollution 5Microbiome research shows each tree species has a unique bacterial identity 2
... of Sheffield have applied an evolutionary ,use it or ... show that marriage can influence the evolution of age-patterns ... and Dr Andrew Russell, from the University,s Department of ... the 18th and 19th centuries, a time during which ...
... Using satellite data, scientists have produced a first-of-its kind map ... are other local- and regional-scale forest canopy maps, the new ... on one uniform method. The map, based on data ... scientists build an inventory of how much carbon the world,s ...
... University of California, Riverside biologists working on guppies ... long-term studies report that rapid growth responses to ... early in life have repercussions in adulthood. Based ... that grew rapidly as juveniles produced fewer offspring than ...
Cached Biology News:Marriage patterns drive fertility decline 2First-of-its-kind map details the height of the globe's forests 2Rapid growth in adolescence leads to fewer offspring, UC Riverside biologists find 2Rapid growth in adolescence leads to fewer offspring, UC Riverside biologists find 3
The Light Diagnostics Calicivirus Genotype 1&2 Typing OligoDetect assay is applicable for the qualitative detection of calicivirus RNA generated by an in-house validated in vitro nucleic acid amplifi...
X-Gal...
Recombinant Rat CINC-2 alpha, CF...
RABBIT ANTI SRC-RSV...
Biology Products: