Navigation Links
Argonne scientists peer into heart of compound that may detect chemical, biological weapons

ARGONNE, Ill. (September 25, 2008) A light-transmitting compound that could one day be used in high-efficiency fiber optics and in sensors to detect biological and chemical weapons at long distance almost went undiscovered by scientists because its structure was too difficult to examine.

Luckily, scientists from U.S. Department of Energy's Argonne National Laboratory and Northwestern University were able to determine the structure of the compound using the uniquely suited Chemistry and Materials beamline of the Center for Advanced Radiation Sources (ChemMatCARS) at the Advanced Photon Source.

"Like other such materials, this material has an electrically polarized structure. The incident light interacts with the electron cloud and in the process is disturbed," Argonne scientist Mercouri Kanatzidis said. "The disturbance changes the wavelength of the emitted light and creates two beams: the original and the second harmonic a beam with half the wavelength and double the frequency."

This second-harmonic beam is 15 times more intense than that produced by the best current material. This two-for-one wavelength boost is paired with greater transparency, so the material can actually transmit the whole higher-wavelength beam. This could have eventual real-world applications in identifying biological and chemical weapons at long distances and in optical communications.

However, these properties almost went undiscovered. The material, (A)ZrPSe6, where A can be potassium, rubidium or cesium, has a unique and difficult chemical structure that does not crystallize very well. It grows lengthwise, but not in other directions. This creates long, thin crystals--perfect for fiber optics but a headache to study by conventional means.

"They are not very easy to design or make," Kanatzidis said. "It doesn't like to grow in other directions."

Finally, using the ChemMatCARS at the APS, Kanatzidis and Santanu Banerjee, Christos Malliakas, Joon I Jang, and John B. Ketterson were able to determine the structure and analyze its remarkable properties. ChemMatCARS specializes in x-ray diffraction from ultra-small crystals and is operated by the Center for Advanced Radiation Sources of The University of Chicago.


Contact: Brock Cooper
DOE/Argonne National Laboratory

Related biology news :

1. NIH awards Argonne $800,000 to develop tool to measure distances within proteins
2. Integrated Fuel Technologies gets worldwide license for Argonne-developed Diesel DeNOx Catalyst
3. Argonne-University of Chicago joint venture bolsters genomic sequencing capabilities
4. Argonne-SRNL agreement supports critical DOE, national priorities
5. Argonne scientists use lasers to align molecules
6. Argonne scientists develop techniques for creating molecular movies
7. Bioinformatics technology developed at Argonne provides new insight into microbial activities
8. Research at Argonnes Advanced Photon Source reveals structure and behavior of collagen
9. New Argonne study may shed light on protein-drug interactions
10. Argonne National Lab acquires first SiCortex SC5832
11. Argonne helps China create cleaner Beijing for 2008 Olympics
Post Your Comments:
(Date:8/21/2019)... ... 21, 2019 , ... AbSci, a revolutionary synthetic biology company ... of complex protein therapeutics, today announced the appointment of Fred Larimore, PhD, to ... Larimore brings more than 30 years of experience in biopharmaceutical manufacturing and process ...
(Date:8/15/2019)... ... 2019 , ... Deep Science Ventures (DSV), a new paradigm for ... unit dedicated to building 100 companies over the next 10 years to address the ... , Deep Science Ventures was founded to create a better method for launching science ...
(Date:8/14/2019)... MARTINSRIED, Germany (PRWEB) , ... August 14, 2019 ... ... screening and characterization, announced today that they have opened a Customer Experience Center ... fueled the need for the new office. , The Munich CEC will be ...
Breaking Biology News(10 mins):
(Date:6/12/2019)... , ... June 12, 2019 , ... ... helium-based leak testing instruments for the Pharmaceutical, Biotechnology, Medical Device and Food Packaging ... has been signed. The agreement will grant exclusive rights for Zillion to represent ...
(Date:6/11/2019)... CITY, Calif. (PRWEB) , ... June 10, 2019 ... ... (IOPP) today announced IOPP will add 80 of its scientific journals to DeepDyve’s ... of physics-related content to DeepDyve’s continually expanding library of more than 20 million ...
(Date:6/11/2019)... DURHAM, N.C. (PRWEB) , ... June 11, 2019 ... ... how extracellular vesicles derived from human mesenchymal stem cells (MSC-EV) are able to ... and cloning ability. In a test on mice, MSC-EVs also increased the cells’ ...
(Date:5/31/2019)... ... May 29, 2019 , ... ... proprietary interest to our methodology, processes, and diagnostic techniques. The patent applications ... Somnology’s IP rights including our proprietary sleep scoring methodology. The approval and ...
Breaking Biology Technology: