Navigation Links
New computer-tomography method visualizes nano-structure of bones
Date:9/22/2010

mber of such pictures are then used to generate digital 3D images of the body's interior using image processing.

The newly developed method measures not only the overall beam intensity absorbed by the object under examination at each angle, but also those parts of the X-ray beam that are deflected in different directions "diffracted" in the language of physics. Such a diffraction pattern is generated for every point in the sample. This supplies additional information about the exact nanostructure, as X-ray radiation is particularly sensitive to the tiniest of structural changes. "Because we have to take and process so many individual pictures with extreme precision, it was particularly important during the implementation of the method to use high-brilliance X-ray radiation and fast, low-noise pixel detectors both available at the Swiss Light Source (SLS)," says Oliver Bunk, who was responsible for the requisite experimental setup at the PSI synchrotron facilities in Switzerland.

The diffraction patterns are then processed using an algorithm developed by the team. TUM researcher Martin Dierolf, lead author of the Nature article, explains: "We developed an image reconstruction algorithm that generates a high-resolution, three-dimensional image of the sample using over one hundred thousand diffraction patterns. This algorithm takes into account not only classical X-ray absorption, but also the significantly more sensitive phase shift of the X-rays." A showcase example of the new technique was the examination of a 25-micrometer, superfine bone specimen of a laboratory mouse with surprisingly exact results. The so-called phase contrast CT pictures show even smallest variations in the specimen's bone density with extremely high precision: Cross-sections of cavities where bone cells reside and their roughly 100 nanometer-fine interconnection network are clearly visible.

"Although the new nano-CT procedure does not achieve the spatial resolutio
'/>"/>

Contact: Dr. Andreas Battenberg
battenberg@zv.tum.de
49-892-891-0510
Technische Universitaet Muenchen
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. Medicago discovers breakthrough method of preparing plant derived recombinant proteins and VLPs and files two PCT patent applications
2. Penn collaboration leads to simpler method for building varieties of nanocrystal superlattices
3. Researchers at Rensselaer Polytechnic Institute develop new method for mass-producing graphene
4. Researchers develop ultra-simple method for creating nanoscale gold coatings
5. Liquid method: pure graphene production
6. Farmers Use Sustainable Farming Methods to Meet Global Food Demand
7. New method makes vaccines stable at tropical temperatures
8. ClearTrial Selected to Provide Methodologies for Accurately Forecasting and Budgeting Clinical Spend and Integrated Financial Controls at CBI Conference
9. Prototype NIST method detects and measures elusive hazards
10. Forensic Scientists at Kansas City Crime Lab Release Validation Report Confirming Zygems forensicGEM(R) Kit is a Reliable, Rapid Method for Extracting DNA From Saliva
11. Scientists develop novel method to generate functional hepatocytes for drug testing
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New computer-tomography method visualizes nano-structure of bones
(Date:7/25/2014)... Pa. , July 25, 2014 /PRNewswire-iReach/ -- ... and consulting for global corporations operating in highly ... host its first annual Global User Group Conference, ... historic Philadelphia, Pennsylvania at ... - http://photos.prnewswire.com/prnh/20140724/130263 This ...
(Date:7/24/2014)... New York, NY - July 24, 2014 -- Keryx ... results from the long-term, randomized, active control Phase 3 ... ferric iron-based phosphate binder, for the treatment of hyperphosphatemia ... The PERFECTED study (PhosphatE binding and iRon delivery with ... the Journal of the American Society of Nephrology ...
(Date:7/24/2014)... Calif. , July 24, 2014  Now available ... to home. Rehealth Regenerative Therapies , located in ... and other physically active people a new health option: ... Regardless of age, countless patients suffer from joint ... activities, such as muscle tears, torn rotator cuff, tennis ...
(Date:7/24/2014)... Security forces worldwide rely on sophisticated equipment, trained ... other public areas against terrorist attacks. A revolutionary ... about to make their job much easier. , ... Patolsky of Tel Aviv University ,s School of ... developed by the Herzliya company Tracense, picks up ...
Breaking Biology Technology:Xybion Announces It Will Host International User Conference in Philadelphia 2Xybion Announces It Will Host International User Conference in Philadelphia 3Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 2Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 3Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 4Stem Cells In Sports Injuries, Joints And Muscular Pain 2Stem Cells In Sports Injuries, Joints And Muscular Pain 3Nano-sized chip 'sniffs out' explosives far better than trained dogs 2
... , , , ... became the only hospital in the Midwest to acquire a dual console ... States to purchase the new system. , , ... the latest robotic-assisted surgery system that gives surgeons an enhanced three-dimensional view ...
... , , , , ... Inc. (Nasdaq: RGDX ) announced today that it has entered ... Partnership to raise approximately $4 million from the private placement of 3,057,907 ... $1.30 per share. The closing of the sale of the shares occurred ...
... , , , ... (NYSE: ARE ), Landlord of Choice to the Life ... long-term lease with Eli Lilly and Company as the anchor tenant ... Science Park ("the Alexandria Center"). Lilly has leased approximately 91,000 ...
Cached Biology Technology:St. John's Hospital Acquires Latest Technology in Robotic-Assisted Surgery 2Response Genetics Announces $4 Million Private Placement 2Response Genetics Announces $4 Million Private Placement 3Alexandria Real Estate Equities, Inc. Signs Biopharmaceutical Company, Lilly, as Anchor New York City Tenant at the Alexandria Center for Science and Technology 2Alexandria Real Estate Equities, Inc. Signs Biopharmaceutical Company, Lilly, as Anchor New York City Tenant at the Alexandria Center for Science and Technology 3Alexandria Real Estate Equities, Inc. Signs Biopharmaceutical Company, Lilly, as Anchor New York City Tenant at the Alexandria Center for Science and Technology 4
(Date:7/24/2014)... 24, 2014) Scientists at The New York ... step closer to creating a viable cell replacement ... cells. , For the first time, NYSCF ... from skin samples of patients with primary progressive ... protocol to induce these stem cells into becoming ...
(Date:7/24/2014)... Bushmeat, the use of native animal species for food ... be a significant factor in the decline of many ... new study indicates that more than half of the ... raptors and hornbills., "By surveying not only the meat ... being eaten inside the forest by hunters and brought ...
(Date:7/24/2014)... current biodiversity, the product of 3.5 billion years of ... history of life. But it may be reaching a ... literature and analysis of data published in Science ... loss and decline of animals is contributing to what ... sixth mass biological extinction event. , Since 1500, more ...
Breaking Biology News(10 mins):NYSCF scientists one step closer to cell therapy for multiple sclerosis patients 2Stanford biologist warns of early stages of Earth's 6th mass extinction event 2Stanford biologist warns of early stages of Earth's 6th mass extinction event 3
... pay more for meals prepared with produce and meat ... meals actually increases when the price increases, according to ... of how customers perceive and value local food shows ... when they are priced slightly higher than meals made ...
... a poorly understood class of RNA produced in a mammal,s ... of the infection. Their findings are reported today in ... Microbiology. RNA (ribonucleic acid) contains information transcribed from the ... these RNAs translate sections of DNA code into building blocks ...
... New University of Florida research puts to rest the ... glacial period. It turns out it ended up in the ... findings have implications for modern-day global warming, said Ellen Martin, ... paper, which is published in this week,s journal Nature ...
Cached Biology News:Restaurant customers willing to pay more for local food 2New class of biomolecules triggered in response to respiratory virus infection 2New class of biomolecules triggered in response to respiratory virus infection 3New class of biomolecules triggered in response to respiratory virus infection 4UF research gives clues about carbon dioxide patterns at end of Ice Age 2UF research gives clues about carbon dioxide patterns at end of Ice Age 3
Screening assay to detect the Listeria monocytogenes in food samples by,DNA amplification and molecular hybridization on a microtiter plate....
... CopyControl™ vector can be induced prior to ... provide the stability of single-copy BACs with ... other cloning vectors. The kits provide the ... insert size screening system) necessary to create ...
... PCR Enhancer (with betaine) substantially improves ... and specificity for amplification of many ... in PCR eliminates the base-pair composition ... thermal stability, suppresses pauses of DNA ...
... Systems provide rapid, precise localization of ... frozen or paraffin-embedded tissue, cytospins and ... facilitate double or triple labeleing experiments, ... with primary antibodies of different animal ...
Biology Products: