Navigation Links
New microscope captures movements of atoms and molecules
Date:11/22/2013

A new microscope invented at Michigan State University allows scientists to zoom in on the movements of atoms and molecules.

Electron microscopes allow scientists to see the structure of microorganisms, cells, metals, crystals and other tiny structures that weren't visible with light microscopes. But while these images have allowed scientists to make great discoveries, the relationship between structure and function could only be estimated because of static images. In the 1990s, researchers added a fourth dimension time by using a laser to capture images of gaseous molecules as they were reacting.

Now, Chong-Yu Ruan, MSU associate professor of physics and astronomy, has brought these "molecular movies" down to the nanoscale level, where the properties of materials begin to change. The work has applications in nanoelectronic technologies and in clean-energy industries.

Ruan's team is one of the few in the world actively developing electron-based imaging technology on the femtosecond timescale. One femtosecond is one-millionth of a billionth of a second a fundamental timescale that atoms take to perform specific tasks, such as mediating the traffic of electrical charges or participating in the chemical reactions.

"Implementing such a technology within an electron microscope setup allows one to examine crucial functions in nanoscale devices," Ruan said. "The goal is to explore the limits where specific physical, chemical and biological transformations can occur."

Ruan and his collaborators filed a patent on the device, and he also envisions the essential components of the device being modular so they can be add-ons to an existing electron microscope, allowing scientists to extend the capabilities of these devices without building the whole device.

"An electron microscope costs between $1 million and $10 million," Ruan said. "I expect our device to cost as little as $500,000. It would allow electron microscopes to be updated with increased resolution for less money than buying a new one."

Ruan's research builds on the work of Ahmed Zewail at the California Institute of Technology. Ruan worked as a postdoctoral scholar with Zewail, who received the Nobel Prize in Chemistry in 1999 for showing how atoms in a molecule move during a chemical reaction.

Ruan is expanding the work to ultrafast electron crystallography, which allows him to look at nanocrystals, their bonds and how they're affected by their surfaces and water. He's also working to develop a radio frequency-enabled, high-brightness electron microscope.

In 2010, Ruan received a U.S. Department of Energy grant to set up his lab at MSU. In 2011, he and Martin Berz and Phillip Duxbury, MSU professors of physics and astronomy, and Martin Crimp, professor of chemical engineering, were awarded a National Science Foundation grant to begin building the device.

Ruan, Berz, Duxbury and Crimp are part of the organizing committee for the forthcoming Femtosecond Electron Imaging and Spectroscopy Conference Dec. 9-12, which will focus on the future for this field of research.


'/>"/>

Contact: Layne Cameron
layne.cameron@cabs.msu.edu
517-353-8819
Michigan State University
Source:Eurekalert  

Related biology news :

1. New microscopes at NIH reveal live, developing cells in unprecedented 3-D clarity
2. Improved smartphone microscope brings single-virus detection to remote locations
3. Nanomedicines impact on patients under the microscope
4. New formula invented for microscope viewing, substitutes for federally controlled drug
5. International conference will put agri-food supply chain under the microscope
6. Deep inside the body, tiny mechanical microscope
7. New microscope uses rainbow of light to image the flow of individual blood cells
8. Nature: Microscope looks into cells of living fish
9. Beyond the microscope: Identifying specific cancers using molecular analysis
10. Its a trap! New laboratory technique captures microRNA targets
11. Satellite captures images of sandstorm
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New microscope captures movements of atoms and molecules
(Date:2/3/2016)... , February 4, 2016 --> ... to SEK 1,351.5 M (105.0), up 1,187% compared with fourth quarter of ... amounted to SEK 517.6 M (loss: 30.0). Earnings per share ... activities was SEK 537.4 M (neg: 74.7). , ... , Revenues amounted to SEK 2,900.5 M (233.6), up 1,142% compared with ...
(Date:2/3/2016)... , Feb. 3, 2016 Vigilant Solutions announces ... Department in Missouri solved two ... reader (LPR) data from Vigilant Solutions. Brian ... in which the victim was walking out of a convenience store and witnessed ... next to his vehicle, striking his vehicle and leaving ...
(Date:2/2/2016)... 2016  BioMEMS devices deployed in hospitals ... medical screening and diagnostic applications, such as ... that facilitate and assure continuous monitoring without ... being bolstered through new opportunities offered by ... coupled with wireless connectivity and low power ...
Breaking Biology News(10 mins):
(Date:2/6/2016)... ... February 06, 2016 , ... Contact:, Abby ... for Excellence in Education Sponsors Teacher Training Program , Bite of Science Dinner ... The Center for Excellence in Education (CEE) will sponsor a Bite of Science ...
(Date:2/5/2016)... On Thursday, February 11, 2-1-1 San ... health and disaster services, and the Community Information ... care coordination and service delivery for the community to ... to better connect service providers to the information they ... Diego has handled more than 2.5 million ...
(Date:2/4/2016)... ... February 04, 2016 , ... Morf Media ... announced an interactive FDA compliance training course, Writing Effective SOPs ... Society) accredited interactive course on Morf Playbook—now conveniently available on smartphones and PCs--provides ...
(Date:2/4/2016)... ... 04, 2016 , ... Shimadzu Scientific Instruments will showcase several ... and poster sessions, and present on the analysis of mycotoxins and medical cannabis ... to 10 at the Georgia World Congress Center in Atlanta, Georgia. , ...
Breaking Biology Technology: