Iconocast Logo

Welcome To Iconocast

How to add a URL link from your web site to the Iconocast web sites

Virtual tour of Southern California

 

Recent News and Articles on the Keywords: 15,100 + capture + nanoscale  Related to the article below (Last Update: 8/4/2008)

D700上市倒计时!尼康D300急降让路
凤凰网, China - Jul 23, 2008
在D300单机跌至万元关口后，商家再次将目前最抢手单镜头防抖套机（18-200 VR）调低到了15100元，很适合兼顾长焦和便携性的摄影玩家购置。 尼康D300采用坚固的镁合金 ...
Source: Google News

An Algorithm for Verifying Biventricular Capture Based on Evoked-Response Morphology -
P DIOTALLEVI, PA RAVAZZI, E GOSTOLI, G DE MARCHI, … - Pacing and Clinical Electrophysiology, 2005 - Blackwell Synergy
... 16, 15100 Alessandria, Italy. Fax: +39-0131-206704; e-mail: pdiotallevi@ospedale.
al.it Diotallevi, P., et al.: An Algorithm for Verifying Biventricular Capture ...

[PDF] Cross Sections for Electron Capture and Ionization in Collisions of Fusion Plasma Impurity Ions with … -
U DB, J Botero, RK Janev, LP Presnyakov - www-nds.indcentre.org.in
... 132.00 5.60 15100 8.94 174.00 12.40 185.00 1650 228.00 19 10 28900 20.40 28900 25.70
289.00 3130 ... Table 2: Total capture cross section (in units of 10 ...

[PDF] Creation, Presentation, Capture, and Replay of Freehand Writings in e-Lecture Scenarios -
L Belenkaia, K Mohamed, T Ottmann - Proceedings of ED-MEDIA 2004, World Conference on …, 2004 - ad.informatik.uni-freiburg.de
Page 1. Creation, Presentation, Capture, and Replay of Freehand Writing in e-Lecture
Scenarios L. Belenkaia, J. Lienhard, KA Mohamed, Th. Ottmann Abstract ...

Behavior and fate of chloronitrobenzenes in a fluvial environment -
C Trova, G Cossa, G Gandolfo - Bulletin of Environmental Contamination and Toxicology, 1991 - Springer
... electron capture detector. ... Send reprint requests to C.Trova, Laboratorio di Sanit
Pubblica,Via Don Gasparolo 1-15100 Alessandria, Italy. 580 Page 2. rnln 6 2 IB ...

Interstitial trapping by Ga or Si atoms in electron-irradiated aluminium
O Dimitrov, F Maury, C Dimitrov, A Lucasson, P … - Radiation Effects and Defects in Solids, 1981 - informaworld.com
... with the expecta- tions based on an elastic interaction, the capture radii in ... Ga)
dilute alloys, prepared from alu- minium with RRR ranging from 15100 to 21200 ...

[PDF] STATUS OF AUSTROPOTAMOBIUS PALLIPES COMPLEX IN THE WATERCOURSES OF THE ALESSANDRIA PROVINCE (NW …
PA NARDI, F BERNINI, T BO, A BONARDI, G FEA, D … - Bull. Fr. P?che Piscic, 2005 - kmae-journal.org
... Vita, Universit? del Piemonte Orientale, Via Bellini 25/G, 15100 Alessandria, Italy. ...
In Piedmont, for example, the capture, transport, trade and keeping in ...
-

Annual variation of immune condition in the Hooded Crow (Corvus corone cornix) -
C Acquarone, M Cucco, G Malacarne - J. Ornithol., 2002 - Blackwell Synergy
... Department of Sciences and Advanced Technology, via Cavour 84, I-15100 Alessandria,
Italy ... Mean temperature during the capture period (from April to May) did not ...

Notes on the distribution of Tonatia schulzi and Tonatia carrikeri in the Brazilian Amazon -
R Gribel, VA Taddei - J. Mammal, 1989 - JSTOR
... Departamento de Zoologia, Universidade Estadual Paulista, Caixa Postal 136, 15100,
Sdo Jose do ... Mist nets were used to capture 750 bats from the Manaus locality ...

Agent based simulation of word-of-mouth phenomena in FMCG markets
F Neri - Proceedings of the 9th WSEAS International Conference on …, 2005 - portal.acm.org
... Neri University of Piemonte Orientale - DSTA via Bellini 25/G, 15100 Alessandria
AL ... The ultimate goal would be to capture the common experience of choosing, for ...

time, hr
BA Applications - Plasma Source Mass Spectrometry: Applications and Emerging …, 2003 - books.google.com
... IFNy bkgd 1ng/ml Figure 4 Test ofantigen capture, antibody affinity, and ... Source Mass
Spectrometry: Applications and Emerging Technologies 1 5000 15100 time, s ...

Source: Google Scholar
 
 

Scientists Capture Nanoscale Images With Short And Intense X-Ray Laser

Article Date: 15 Nov 2006 - 13:00pm (PST)
LLNL scientists for the first time have validated the idea of using extremely short and intense X-ray pulses to capture images of objects such as proteins before the X-rays destroy the sample.

At the same time, the team also established a speed record of 25 femtoseconds for flash imaging.

The new method will be applicable to atomic-resolution imaging of complex biomolecules when even more powerful X-ray lasers, currently under construction, are available. The technique will allow scientists to gain insight into the fields of materials science, plasma physics, biology and medicine.

Using the free-electron laser at Deutsches Elektronen-Synchrotron (DESY) in Hamburg, Livermore scientists, as part of an international collaboration led by LLNL's Henry Chapman and Janos Hajdu of Uppsala University, were able to record a single diffraction pattern of a nanostructured object before the laser destroyed the sample. A Livermore-developed computer algorithm was then used to recreate an image of the object based on the recorded diffraction pattern.

Article continues below and (thank you)
 
This "lensless" imaging technique could be applied to atomic-resolution imaging because it is not limited by the need to build a high-resolution lens. The flash images could resolve features 50 nanometers in size, which is about 10 times smaller than what is achievable with an optical microscope.

Theory predicts that a single diffraction pattern may be recorded from a large macromolecule, a virus or a cell with an ultra-short and extremely bright X-ray pulse before the sample explodes and turns into a plasma. This means that scientists could better understand the structure of macromolecular proteins without crystallizing them and thus allow rapid study of all classes of proteins.

Livermore scientists, along with colleagues at Uppsala University in Sweden, DESY, Technische Universitat Berlin, the Center for Biophotonics Science and Technology at UC Davis, Stanford Synchrotron Radiation Laboratory, and private firm Spiller X-ray Optics of Livermore, conducted the first experimental demonstration of this theory.

Computer simulations based on four different models suggest that a near-atomic resolution structure could be achieved by well-thought out choice of pulse length and intensity of X-ray wavelength before the sample is stripped of its electrons and is destroyed. However, up until now, there had been no experimental verification of the technique.

The experimental demonstration of "flash diffractive imaging" uses the first soft X-ray FEL (free electron laser) in the world located at the FLASH facility at DESY. FLASH generates high-power soft X-ray pulses by the principle of self-amplification of spontaneous emission. The pulses are 10 million times brighter than today's brightest X-ray sources, synchrotrons. In addition, this experiment showed that it only takes a 25-femtosecond pulse duration to capture the image.

There has been a question whether the diffraction pattern recorded under these circumstances could be reconstructed to obtain undamaged sample information.

"These results could become a standardized method," Chapman said. "This imaging could be applied at the cellular, sub-cellular and down on to single molecule scale."

###

Other Livermore authors include Anton Barty, Michael Bogan, Sebastien Boutet, Matthias Frank, Stefan Hau-Riege, Stefano Marchesini, Bruce Woods, Sasa Bajt, Henry Benner, Richard London, Richard Lee and Abraham Szoke.

The work was funded by a Laboratory Directed Research and Development strategic initiative proposal for "biological imaging with fourth-generation light sources."

The research appears in the Nov. 12 online edition of Nature Physics. It will appear on the cover of the December hard copy issue of Nature Physics.

This research was funded in part by the National Science Foundation's Center for Biophotonics Science and Technology (CBST) headquartered at the UC Davis Medical Center in Sacramento. CBST is a multi-institutional research center established in 2002 by LLNL and UC Davis researchers and is dedicated to the development and application of photonic instrumentation and methods to address important problems in the biomedical technology sector.

Founded in 1952, Lawrence Livermore National Laboratory is a national security laboratory, with a mission to ensure national security and apply science and technology to the important issues of our time. Lawrence Livermore National Laboratory is managed by the University of California for the U.S. Department of Energy's National Nuclear Security Administration.

Contact: Anne Stark
DOE/Lawrence Livermore National Laboratory
 
 
 
Google
Web www.iconocast.com
 
 
 

 

Continue News With: News6 ; News7 ; News8 ; News9 ; News9A


ADVERTISEMENT

Iconocast is about learning and teaching without borders; we offer eMarketing, Internet Advertising, Internet Marketing, Search Engine Optimization, Search Engine Marketing, Online Branding, and eMarketing News Services. Home

 
 © 2002-2006

Keywords::

Contact Iconocast

Home Page