Navigation Links
Surprising discovery: X-rays drive formation of new crystals
Date:1/25/2010

X-rays can do a lot of useful things -- detect broken bones, tumors and dental cavities, analyze atoms in diverse materials and screen luggage at airports -- but who knew they could cause crystals to form?

A team of Northwestern University researchers has discovered that X-rays can trigger the formation of a new type of crystal: charged cylindrical filaments ordered like a bundle of pencils experiencing repulsive forces, which is unknown in crystals. Similar phenomena may occur naturally in biology, such as in the cytoskeleton filaments of cells, which control cell division and migration in cancer metastasis and many other processes.

The results, which will be published this week in the Jan. 29 issue of the journal Science, expand scientific knowledge of crystals, whether from nature, technological devices or the lab, and also open the door to using X-rays to control the structure of materials or to develop novel biomedical therapies.

Crystal formation is usually based on attractive forces between atoms or molecules, making the Northwestern discovery completely unexpected.

"This is a very intriguing and astonishing result," said Samuel I. Stupp, the paper's senior author and Board of Trustees Professor of Chemistry, Materials Science and Engineering, and Medicine. "The filaments are charged so one would expect them to repel each other, not to organize into a crystal. Even though they are repelling each other, we believe the hundreds of thousands of filaments in the bundles are trapped within a network and form a crystal to become more stable."

The discovery of the new crystals was serendipitous. Very early one morning at Argonne National Laboratory, the members of Stupp's research team applied synchrotron X-ray radiation to a solution of peptide nanofibers they were studying. (The peptides are small synthetic molecules that can be used to create new materials.) The researchers saw the solution go from clear to
'/>"/>

Contact: Megan Fellman
fellman@northwestern.edu
847-491-3115
Northwestern University
Source:Eurekalert

Page: 1 2

Related biology technology :

1. The MedZilla Report for September 2009 - Care Grows Again in September and - Surprisingly - Pharma Sales Jobs Up Too
2. Proteomics Study Reveals That Genes Involved in Invertebrate Longevity Have Surprising Parallels in Humans.
3. Jatropha World 2009 Advance Access: Surprisingly Candid Interview Series Examines Biofuel Predictions Compared to Fossil Fuels
4. Jatropha World 2009 Advance Access: Surprisingly Candid Interview Series Examines Biofuel Predictions Compared to Fossil Fuels
5. QImaging Introduces 64-Bit QCam Driver
6. Novus Biologicals Awards Contract to Biovista Inc. to Drive its Web-Based Novus Explorer Service
7. PacsDrive Announces Low Cost Medical Imaging Storage Service, Seeks to Alter Status Quo in Health Care IT
8. Broad-Spectrum Antibacterial Activity is the Most Important Driver of Antibiotic Selection for Nosocomial Pneumonia In Europe
9. Continued Uptake of TNF-Alpha Inhibitors and Interleukin Inhibitors Will Drive $2.2 Billion Growth in the Psoriasis Drug Market
10. Environmental & Economic Factors Drives Global Demand for Pharmaceutical leak Testing and Deblistering
11. TOPAZ Technologies Protocols for Animal Studies Software Drives Customer Conversions
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/30/2014)... The report “Fragrance Ingredients Market by Type (Essential Oils ... Soaps & Detergents) & by Geography - Global Trends ... Fragrance Ingredients Market with analyses and projection of the ... has been segmented on the basis of major regions ... Rest of the World (ROW); and their value has ...
(Date:10/30/2014)... Global polyvinyl chloride (PVC) demand registered a significant ... especially in North America and Europe. However, the global ... a growing trend. , The largest chunk of the ... segment. In 2013, the key PVC application spheres included ... film. Moreover, the PVC was consumed in the production ...
(Date:10/30/2014)... SoundConnect , an industry leading ... end users the key to turning this already ... adding voice enablement and hybrid audio conferencing. , ... communication tool that includes presence, instant messaging and ... becomes a comprehensive unified communications solution. Adding the ...
(Date:10/30/2014)... 2014 Spartan Bioscience announced today that ... System . It detects CYP2C19 genetic mutations in less ... The Spartan RX CYP2C19 System is the first near-patient ... in Canada. Due to the system’s ease of use, ... by healthcare professionals such as doctors, nurses, pharmacists, and ...
Breaking Biology Technology:Fragrance Ingredients Market worth $17,104.21 Million by 2019 - New Report by MarketsandMarkets 2Fragrance Ingredients Market worth $17,104.21 Million by 2019 - New Report by MarketsandMarkets 3Fragrance Ingredients Market worth $17,104.21 Million by 2019 - New Report by MarketsandMarkets 4Fragrance Ingredients Market worth $17,104.21 Million by 2019 - New Report by MarketsandMarkets 5Global Polyvinyl Chloride Demand Is on Upward Trend Now, Says Merchant Research & Consulting in Its Topical Study 2Global Polyvinyl Chloride Demand Is on Upward Trend Now, Says Merchant Research & Consulting in Its Topical Study 3SoundConnect Launches Voice Enablement and Hybrid Audio Conferencing for Office 365 2SoundConnect Launches Voice Enablement and Hybrid Audio Conferencing for Office 365 3Health Canada approves first near-patient DNA test for personalized medicine 2Health Canada approves first near-patient DNA test for personalized medicine 3
... Madison, Wis . - It's been a long time since Wisconsin ... , ,The U.S. Forest Products Laboratory came to Madison ... U.S. Forest Service , was pioneering scientific forestry. The National ... back in the news as scientists there engage in a race ...
... months! The major stock indices looked pretty lackluster at the ... the second quarter with the Dow Jones going from ... for the first half. Not far behind was the NASADQ ... and 7% growth for the half year. , ,Unfortunately, the main ...
... controversy over its proposed overhaul of the state's healthcare system ... pare back additional funding for the Act 255 tax credit ... Joint Committee on Finance. , ,The caucus voted to delete ... investment and early-stage seed investment tax credits. , ,According ...
Cached Biology Technology:Federal bioenergy lab will give Wisconsin a chance to shine 2Federal bioenergy lab will give Wisconsin a chance to shine 3Federal bioenergy lab will give Wisconsin a chance to shine 4Midwest life science stocks kept sizzling in Q2 2Midwest life science stocks kept sizzling in Q2 3Midwest life science stocks kept sizzling in Q2 4Midwest life science stocks kept sizzling in Q2 5Midwest life science stocks kept sizzling in Q2 6Senate Democrats strip additional Act 255 funding from budget 2
(Date:10/30/2014)... Philadelphia, PA, October 30, 2014 – Bacteria in ... are critical for digestion. Yet, these same bacteria ... system if they penetrate the gut and enter ... natural response to protect the body, chronic or ... diseases. Prior research has established the involvement of ...
(Date:10/29/2014)... who lose their hair as a consequence of chemotherapy ... improve the scalp cooling technology that prevents hair loss. ... being pioneered by global scalp cooling manufacturing company, Paxman ... biology department of the University of Huddersfield. , The ... who has a background in the pharmacology of cancer ...
(Date:10/29/2014)... to make their food, but they also need protection from ... a group of molecules in plants that shields them from ... of the American Chemical Society , one team reports on ... Timothy Zwier and colleagues at Purdue University note that the ... serious damage to plant DNA and, as a result, hinder ...
Breaking Biology News(10 mins):Breakdown in gut barriers to bacteria may promote inflammation and craving in alcoholics 2New technology on the way to aid cancer suffers who lose their hair after chemotherapy 2
... in healthy foods are invited to a day-long conference ... findings on connections between fruit and vegetable production and ... include presentations by researchers, producers, allied produce industry leaders ... 20th anniversary of Texas A&M University,s Vegetable and Fruit ...
... plants has been found in honeybees and could help ... and Beijing, China report their findings in mBio ... for Microbiology. The routine screening of bees for ... of Tobacco Ringspot Virus, or TRSV, and prompted an ...
... blowing across the Pacific Ocean is often caused by the ... according to findings by UC Irvine and other researchers published ... Sciences . The study is the first to quantify ... the production in China of cellphones, televisions and other consumer ...
Cached Biology News:US food industry leaders to convene for health talks in Texas 2US food industry leaders to convene for health talks in Texas 3Pathogenic plant virus jumps to honeybees 2Made in China for us: Air pollution tied to exports 2
... Sample Preparation for Membrane Proteins ,Contains ... membrane,protein extracts for 2-D gel analysis ... Extraction Kit , (contains sufficient ... a packed cell weight of 10 mg ...
...
Rabbit polyclonal to MCP2 ( Abpromise for all tested applications). entrezGeneID: 6355 SwissProtID: P49873...
... polystyrene with frosted labeling surfaces, volume ... counting. 100% integrity tested. Linkage: This ... number, created to easily match Cornings ... yet, please order under the old ...
Biology Products: