Featured Research

from universities, journals, and other organizations

New molecular robot can be programmed to follow instructions

Date:
March 9, 2011
Source:
American Chemical Society
Summary:
Scientists have developed a programmable "molecular robot" -- a sub-microscopic molecular machine made of synthetic DNA that moves between track locations separated by 6nm. The robot, a short strand of DNA, follows instructions programmed into a set of fuel molecules determining its destination, for example, to turn left or right at a junction in the track. The report represents a step toward futuristic nanomachines and nanofactories.

Scientists have developed a programmable "molecular robot" -- a sub-microscopic molecular machine made of synthetic DNA that moves between track locations separated by 6nm. The robot, a short strand of DNA, follows instructions programmed into a set of fuel molecules determining its destination, for example, to turn left or right at a junction in the track. The report, which represents a step toward futuristic nanomachines and nanofactories, appears in ACS's Nano Letters.

Andrew Turberfield and colleagues point out that other scientists have developed similar DNA-based robots, which move autonomously. Some of these use a biped design and move by alternately attaching and detaching themselves from anchor points along the DNA track, foot over foot, when fuel is added. Scientists would like to program DNA robots to autonomously walk in different directions to move in a programmable pattern, a key to harnessing their potential as cargo-carrying molecular machines.

The scientists describe an advance toward this goal -- a robot that can be programmed to choose among different branches of a molecular track, rather than just move in a straight line. The key to this specialized movement is a so-called "fuel hairpin," a molecule that serves as both a chemical energy source for propelling the robot along the track and as a routing instruction. The instructions tell the robot which point is should move to next, allowing the selection between the left or right branches of a junction in the track, precisely controlling the route of the robot -- which could potentially allow the transport of pharmaceuticals or other materials.

The authors acknowledged funding from the Engineering and Physical Sciences Research Council (EPSRC).


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Journal Reference:

  1. Richard A. Muscat, Jonathan Bath, Andrew J. Turberfield. A Programmable Molecular Robot. Nano Letters, 2011; 110128131625007 DOI: 10.1021/nl1037165

Cite This Page:

American Chemical Society. "New molecular robot can be programmed to follow instructions." ScienceDaily. ScienceDaily, 9 March 2011. <www.sciencedaily.com/releases/2011/03/110309113036.htm>.
American Chemical Society. (2011, March 9). New molecular robot can be programmed to follow instructions. ScienceDaily. Retrieved September 22, 2014 from www.sciencedaily.com/releases/2011/03/110309113036.htm
American Chemical Society. "New molecular robot can be programmed to follow instructions." ScienceDaily. www.sciencedaily.com/releases/2011/03/110309113036.htm (accessed September 22, 2014).

Share This



More Computers & Math News

Monday, September 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

What This MIT Sensor Could Mean For The Future Of Robotics

What This MIT Sensor Could Mean For The Future Of Robotics

Newsy (Sep. 20, 2014) MIT researchers developed a light-based sensor that gives robots 100 times the sensitivity of a human finger, allowing for "unprecedented dexterity." Video provided by Newsy
Powered by NewsLook.com
Oculus Reveals New Virtual Reality Headset Prototype

Oculus Reveals New Virtual Reality Headset Prototype

Newsy (Sep. 20, 2014) Oculus announced a new virtual reality headset prototype Saturday, saying the product is close to being ready for consumers. Video provided by Newsy
Powered by NewsLook.com
How To Protect Your Data In The Still-Vulnerable iOS 8

How To Protect Your Data In The Still-Vulnerable iOS 8

Newsy (Sep. 20, 2014) One security researcher says despite Apple's efforts to increase security in iOS 8, it's still vulnerable to law enforcement data-transfer techniques. Video provided by Newsy
Powered by NewsLook.com
How Much Privacy Protection Will Google's Android L Provide?

How Much Privacy Protection Will Google's Android L Provide?

Newsy (Sep. 19, 2014) Google's local encryption will make it harder for law enforcement or malicious actors to access the contents of devices running Android L. Video provided by Newsy
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