Featured Research

from universities, journals, and other organizations

World's First Controllable Molecular Gear At Nanoscale Created

Date:
June 22, 2009
Source:
Agency for Science, Technology and Research (A*STAR), Singapore
Summary:
Scientists have scored a breakthrough in nanotechnology by creating the world's first molecular gear of the size of 1.2 nanometers whose rotation can be deliberately controlled.

Researchers in Singapore have invented a molecular gear of the size of 1.2nm whose rotation can be deliberately controlled.
Credit: A*STAR Institute of Materials Research and Engineering (IMRE), Singapore

Scientists from A*STAR’s Institute of Materials Research and Engineering (IMRE), led by Professor Christian Joachim,*  have scored a breakthrough in nanotechnology by becoming the first in the world to invent a molecular gear of the size of 1.2nm whose rotation can be deliberately controlled. This achievement marks a radical shift in the scientific progress of molecular machines and is published on 14 June 20009 in Nature Materials.

Said Prof Joachim, “Making a gear the size of a few atoms is one thing, but being able to deliberately control its motions and actions is something else altogether. What we’ve done at IMRE is to create a truly complete working gear that will be the fundamental piece in creating more complex molecular machines that are no bigger than a grain of sand.” 

Prof Joachim and his team discovered that the way to successfully control the rotation of a single-molecule gear is via the optimization of molecular design, molecular manipulation and surface atomic chemistry. This was a breakthrough because before the team’s discovery, motions of molecular rotors and gears were random and typically consisted of a mix of rotation and lateral displacement.  The scientists at IMRE solved this scientific conundrum by proving that the rotation of the molecule-gear could be well-controlled by manipulating the electrical connection between the molecule and the tip of a Scanning Tunnelling Microscope while it was pinned on an atom axis.  

Said Dr Lim Khiang Wee, Executive Director of IMRE, “Christian and his team’s discovery shows that it may one day be possible to create and manipulate molecular-level machines. Such machines may, for example, walk on DNA tracks in the future to deliver therapeutics to heal and cure. There already exists at least one international roadmap for creating such productive nanosystems. As we push the frontiers of nanotechnology, we increase our understanding of new phenomena at the nanoscale. This paper is a valuable step on the long road to applying this understanding for discoveries and breakthroughs in nanotechnology and bring to reality the tiny nanobots and nanomachines from science fiction movies.” 

*Prof Christian Joachim is a Visiting Investigator at IMRE since 2005. He is the Director of Research, and Head of Molecular Nanoscience and Picotechnology Group, atthe Centre National de la Recherchι Scientifique (CNRS).


Story Source:

The above story is based on materials provided by Agency for Science, Technology and Research (A*STAR), Singapore. Note: Materials may be edited for content and length.


Journal Reference:

  1. C. Manzano, W.-H. Soe, H. S. Wong, F. Ample, A. Gourdon, N. Chandrasekhar & C. Joachim. Step-by-step rotation of a molecule-gear mounted on an atomic-scale axis. Nature Materials, Published online: 14 June 2009 DOI: 10.1038/NMAT2467

Cite This Page:

Agency for Science, Technology and Research (A*STAR), Singapore. "World's First Controllable Molecular Gear At Nanoscale Created." ScienceDaily. ScienceDaily, 22 June 2009. <www.sciencedaily.com/releases/2009/06/090615102036.htm>.
Agency for Science, Technology and Research (A*STAR), Singapore. (2009, June 22). World's First Controllable Molecular Gear At Nanoscale Created. ScienceDaily. Retrieved September 17, 2014 from www.sciencedaily.com/releases/2009/06/090615102036.htm
Agency for Science, Technology and Research (A*STAR), Singapore. "World's First Controllable Molecular Gear At Nanoscale Created." ScienceDaily. www.sciencedaily.com/releases/2009/06/090615102036.htm (accessed September 17, 2014).

Share This



More Matter & Energy News

Wednesday, September 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Space Race Pits Bezos Vs Musk

Space Race Pits Bezos Vs Musk

Reuters - Business Video Online (Sep. 16, 2014) — Amazon CEO Jeff Bezos' startup will team up with Boeing and Lockheed to develop rocket engines as Elon Musk races to have his rockets certified. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
MIT's Robot Cheetah Unleashed — Can Now Run, Jump Freely

MIT's Robot Cheetah Unleashed — Can Now Run, Jump Freely

Newsy (Sep. 16, 2014) — MIT developed a robot modeled after a cheetah. It can run up to speeds of 10 mph, though researchers estimate it will eventually reach 30 mph. Video provided by Newsy
Powered by NewsLook.com
Manufacturer Prints 3-D Car In Record Time

Manufacturer Prints 3-D Car In Record Time

Newsy (Sep. 15, 2014) — Automobile manufacturer Local Motors created a drivable electric car using a 3-D printer. Printing the body only took 44 hours. Video provided by Newsy
Powered by NewsLook.com
Refurbished New York Subway Tunnel Unveiled After Sandy Damage

Refurbished New York Subway Tunnel Unveiled After Sandy Damage

Reuters - US Online Video (Sep. 15, 2014) — New York officials unveil subway tunnels that were refurbished after Superstorm Sandy. Nathan Frandino reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

      Technology News



      Save/Print:
      Share:  

      Free Subscriptions


      Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

      Get Social & Mobile


      Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

      Have Feedback?


      Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
      Mobile iPhone Android Web
      Follow Facebook Twitter Google+
      Subscribe RSS Feeds Email Newsletters
      Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins