Navigation Links
Jet-propelled imaging for an ultrafast light source
Date:7/29/2009

Shot from a microcannon

The answer was what Spence calls a "particle gun, like an ink-jet printer," designed to inject a beam of water droplets across the tightly focused x-ray beam in single file, each droplet so small it contains only a single protein or virus. He and colleagues Bruce Doak and Uwe Weierstall of ASU designed a nozzle that can fire liquid droplets, each less than a millionth of a meter in diameter (one micrometer), faster than hundreds of thousands of times a second. The sample jet is designed to shoot droplets right through a pulsed beam of x-rays a billion times brighter than any ever created in a light source before.

ASU postdoc Dan DePonte did most of the hard work and refinement needed to realize the design. It wasn't easy. Nozzles made of solid material like glass invariably clog up, limiting droplets to at best 20 micrometers across. What Spence and his colleagues wanted was a jet of particles less than a micrometer in size.

Back in 1878 Lord Rayleigh, a professor of experimental physics at Cambridge University, discovered that a smooth, cylindrical jet of liquid emerging from an orifice spontaneously breaks up to form a train of spherical droplets. In the late 1990s, physicist Alfonso Gan-Calvo of the University of Seville found a way to surround the streaming liquid with pressurized gas to make a co-flowing liquid sheath. By adjusting gas and liquid pressure and other parameters, he was able to create a "virtual nozzle" that could shrink the diameter of the liquid jet to a thread so small it would not clog the physical aperture of the tube. In effect, the gas sheath acts to focus the liquid stream.

Spence and his colleagues needed a true microthread of liquid, however, one that produced droplets sized a millionth of a meter or less. In their nozzle, liquid flows through a narrow capillary inside the tube through which the gas flows; the liquid issues from the capillary some distance from the
'/>"/>

Contact: Paul Preuss
paul_preuss@lbl.gov
510-486-6249
DOE/Lawrence Berkeley National Laboratory
Source:Eurekalert  

3

GOOD

Page: 1 2 3 4 5 6

Related biology news :

1. Kornberg Associates Architects Selected to Develop Design for New Stanford University Imaging Center
2. Lyncean Technologies Inc. receives $1.2 M from NCRR to develop new imaging technique
3. First neuroimaging study examining motor execution in children with autism reveals new insights
4. Ultrasound imaging now possible with a smartphone
5. SNM Symposium on Multimodality Cardiovascular Molecular Imaging
6. Fattysaurus or thinnysaurus? How dinosaurs measure up with laser imaging
7. Studies on imaging and tracking transplanted cells
8. UNC expands brain imaging study of infants at risk for autism
9. Similarities in imaging the human body, Earths crust focus of conference at UH
10. MU brain imaging center provides research for autism, schizophrenia and Parkinsons disease
11. Cheskin Added Value EVP Lee Shupp Discusses Evolving Dynamics of Consumers and Imaging Tech at 6Sight
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Jet-propelled imaging for an ultrafast light source
(Date:5/21/2013)... charted the path of insulin action in cells in ... blueprint for understanding what goes wrong in diabetes. ... Professor David James from Sydney,s Garvan Institute of Medical ... of the prestigious journal Cell Metabolism . , ... very important role in the body because it helps ...
(Date:5/20/2013)... N.Y. Little is known about the effect of ... study from Cornell University finds that increasing the amount ... reduces the probability of obesity. , The study represents ... of PE on youth obesity, and is forthcoming in ... early, online version of the study can be viewed ...
(Date:5/20/2013)... A new study conducted at the University of Bristol ... Evolutionary Biology sheds light on how the brain ... Lautenschlager from Bristol,s School of Earth Sciences, together with ... picked the brains of 150 million year old dinosaurs. ... Jurassic dinosaur Dysalotosaurus lettowvorbecki : a very young ...
Breaking Biology News(10 mins):Insight into the dazzling impact of insulin in cells 2Insight into the dazzling impact of insulin in cells 3Gym class reduces probability of obesity, study finds for first time 2Fossil brain teaser 2
... of researchers from the University of Valladolid (Spain) has analysed ... free iron than pale and non-alcoholic beers. Iron is essential ... compounds that give these beverages stability and flavour. According ... (UVa) on 40 types of beers from all 5 continents, ...
... bleekeri ) employ different reproductive strategies depending on their body ... BMC Evolutionary Biology shows that the divergent mating behavior ... sperm sizes. Large male squid compete for females by ... has chosen her partner they mate in an above and ...
... August 10, 2011 - Between conception and birth, the ... and coiling within the tiny abdomen. Within a given ... same formationhowever, until now, it has not been clear ... and biophysical manipulations, theory, and computation, researchers at Harvard ...
Cached Biology News:Dark beer has more iron than pale beer 2Gut coils with help from its elastic neighbor 2Gut coils with help from its elastic neighbor 3
(Date:5/21/2013)... , May 21, 2013  On May ... FCN ), the global business advisory firm dedicated ... value (the "Company"), announced that it has combined ... were formerly included within the Corporate Finance/Restructuring segment ... segment to form a single integrated practice whose ...
(Date:5/21/2013)... Through science fairs, workshops, kits for building optical ... organizations will continue their work to increase awareness about ... daily life with the aid of SPIE Education ... countries, are the first of two groups of recipients ... international society for optics and photonics , in 2013. ...
(Date:5/21/2013)... The congress of the ERA-EDTA ... the biggest congress in Europe ... are in Istanbul to share ... pioneering studies have been presented: / (1) ... VIA HEMODIALYSATE REDUCES ESA USE" By SFP-iron ...
(Date:5/21/2013)... Austin, TX (PRWEB) May 21, 2013 ... and outdoor security solutions, today announced that Genzyme, a ... more units of Door Detective® CL for a multi-use ... already installed in four other Genzyme buildings, this latest ... had with the tailgate detection device improving ...
Breaking Biology Technology:FTI Consulting Releases Realigned Segment Information Reflecting Newly Combined Health Solutions Practice 2Learning About Light: Education Outreach Projects Funded in 10 Countries Through First Round of SPIE Grants 2Learning About Light: Education Outreach Projects Funded in 10 Countries Through First Round of SPIE Grants 3ERA-EDTA CONGRESS 2013: Late Breaking Clinical Trials 2ERA-EDTA CONGRESS 2013: Late Breaking Clinical Trials 3Door Security at Genzyme, a Sanofi Company, Enhanced with Door Detective from Smarter Security 2Door Security at Genzyme, a Sanofi Company, Enhanced with Door Detective from Smarter Security 3
... Trials -- TIRAT CARMEL, Israel, August 31, 2010 ... ... var ... by longUrl, so we need to grab the first one. for (var r in data.results) { first_result ...
... & Nutrition is honored to announce the company has ... fastest-growing, private companies in America.  With this accomplishment, Uckele ... on the list multiple times, many of which have ... most comprehensive look at the most important segment of ...
... ThermoGenesis Corp. (Nasdaq: KOOLD ), a leading supplier ... stem cells, said today it has sold two BioArchive® Systems ... operates cord blood banks in Taiwan, Hong Kong, Thailand and ... a storage capacity for cryopreserving and archiving cord blood stem ...
Cached Biology Technology:InSightec Treats First Prostate Cancer Patients in Clinical Trials 2InSightec Treats First Prostate Cancer Patients in Clinical Trials 3InSightec Treats First Prostate Cancer Patients in Clinical Trials 4InSightec Treats First Prostate Cancer Patients in Clinical Trials 5InSightec Treats First Prostate Cancer Patients in Clinical Trials 6InSightec Treats First Prostate Cancer Patients in Clinical Trials 7InSightec Treats First Prostate Cancer Patients in Clinical Trials 8Uckele Health & Nutrition Ranks on the 2010 Inc. 5000 List 2ThermoGenesis Announces Sale of BioArchive Systems In Asia as Company Increases Presence In Key Market 2ThermoGenesis Announces Sale of BioArchive Systems In Asia as Company Increases Presence In Key Market 3
... Service, We deliversoluble protein or No ... yields the best soluble protein results , ... clone submitted , Powerful results on your ... Solubility Optimization Service (SOS) uses proprietary tools ...
... The Rapid-Screen cDNA Library Panels were designed ... three sets of PCRs to identify the ... is performed in a 96-well "Master Plate," ... 5,000 clones. Having identified the positive well(s) ...
... The ProteinChip beta-amyloid Multipeptide Kit, designed ... makes detecting a variety of amyloid ... ever before. - Clinical neuroscience proteomics ... drug treatment - Correlate beta-amyloid peptide ...
Formula variant: With the macro- and micronutrients as described by Lloyd and McCown (1981). Preparation Quantity Equivalency: Formulated to contain 2.3 grams of powder per liter of medium. Physical ...
Biology Products: