Featured Research

from universities, journals, and other organizations

Moving microscopic vision into another new dimension

Date:
June 30, 2011
Source:
American Chemical Society
Summary:
Scientists who pioneered a revolutionary 3-D microscope technique are now describing an extension of that technology into a new dimension that promises sweeping applications in medicine, biological research, and development of new electronic devices.

Scientists who pioneered a revolutionary 3-D microscope technique are now describing an extension of that technology into a new dimension that promises sweeping applications in medicine, biological research, and development of new electronic devices. Their reports on so-called 4-D scanning ultrafast electron microscopy, and a related technique, appear in two papers in the Journal of the American Chemical Society.

Related Articles


Chemistry Nobel Laureate Ahmed H. Zewail and colleagues moved high-resolution images of vanishingly small nanoscale objects from three dimensions to four dimensions when they discovered a way to integrate time into traditional electron microscopy observations. Their laser-driven technology allowed researchers to visualize 3-D structures such as a ring-shaped carbon nanotube while it wiggled in response to heating, over a time scale of femtoseconds. A femtosecond is one millionth of one billionth of a second. But the 3-D information obtained with that approach was limited because it showed objects as stationary, rather than while undergoing their natural movements.

The scientists describe how 4-D scanning ultrafast electron microscopy and scanning transmission ultrafast electron microscopy overcome that limitation, and allow deeper insights into the innermost structure of materials. The reports show how the technique can be used to investigate atomic-scale dynamics on metal surfaces, and watch the vibrations of a single silver nanowire and a gold nanoparticle. The new techniques "promise to have wide ranging applications in materials science and in single-particle biological imaging," they write.

Zewail and colleagues acknowledge funding from the National Science Foundation, the Air Force Office of Scientific Research, the Gordon & Betty Moore Physical Biology Center at Caltech, and the Arab Fund for Economic and Social Development.


Story Source:

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


Journal References:

  1. Volkan Ortalan, Ahmed H. Zewail. 4D Scanning Transmission Ultrafast Electron Microscopy: Single-Particle Imaging and Spectroscopy. Journal of the American Chemical Society, 2011; 110602150535087 DOI: 10.1021/ja203821y
  2. Omar F. Mohammed, Ding-Shyue Yang, Samir Kumar Pal, Ahmed H. Zewail. 4D Scanning Ultrafast Electron Microscopy: Visualization of Materials Surface Dynamics. Journal of the American Chemical Society, 2011; 133 (20): 7708 DOI: 10.1021/ja2031322

Cite This Page:

American Chemical Society. "Moving microscopic vision into another new dimension." ScienceDaily. ScienceDaily, 30 June 2011. <www.sciencedaily.com/releases/2011/06/110629102152.htm>.
American Chemical Society. (2011, June 30). Moving microscopic vision into another new dimension. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2011/06/110629102152.htm
American Chemical Society. "Moving microscopic vision into another new dimension." ScienceDaily. www.sciencedaily.com/releases/2011/06/110629102152.htm (accessed October 25, 2014).

Share This



More Matter & Energy News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

IKEA Desk Converts From Standing to Sitting With One Button

IKEA Desk Converts From Standing to Sitting With One Button

Buzz60 (Oct. 24, 2014) IKEA is out with a new convertible desk that can convert from a sitting desk to a standing one with just the push of a button. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com
Ebola Protective Suits Being Made in China

Ebola Protective Suits Being Made in China

AFP (Oct. 24, 2014) A factory in China is busy making Ebola protective suits for healthcare workers and others fighting the spread of the virus. Duration: 00:38 Video provided by AFP
Powered by NewsLook.com
Real-Life Transformer Robot Walks, Then Folds Into a Car

Real-Life Transformer Robot Walks, Then Folds Into a Car

Buzz60 (Oct. 24, 2014) Brave Robotics and Asratec teamed with original Transformers toy company Tomy to create a functional 5-foot-tall humanoid robot that can march and fold itself into a 3-foot-long sports car. Jen Markham has the story. Video provided by Buzz60
Powered by NewsLook.com
Police Testing New Gunfire Tracking Technology

Police Testing New Gunfire Tracking Technology

AP (Oct. 24, 2014) A California-based startup has designed new law enforcement technology that aims to automatically alert dispatch when an officer's gun is unholstered and fired. Two law enforcement agencies are currently testing the technology. (Oct. 24) Video provided by AP
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:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

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