Navigation Links
Listening to cells: Scientists probe human cells with high-frequency sound
Date:2/1/2013

Philadelphia, Pa. Sound waves are widely used in medical imaging, such as when doctors take an ultrasound of a developing fetus. Now scientists have developed a way to use sound to probe tissue on a much tinier scale. Researchers from the University of Bordeaux in France deployed high-frequency sound waves to test the stiffness and viscosity of the nuclei of individual human cells. The scientists predict that the probe could eventually help answer questions such as how cells adhere to medical implants and why healthy cells turn cancerous.

"We have developed a new non-contact, non-invasive tool to measure the mechanical properties of cells at the sub-cell scale," says Bertrand Audoin, a professor in the mechanics laboratory at the University of Bordeaux. "This can be useful to follow cell activity or identify cell disease." The work will be presented at the 57th Annual Meeting of the Biophysical Society (BPS), held Feb. 2-6, 2013, in Philadelphia, Pa.

The technique that the research team used, called picosecond ultrasonics, was initially applied in the electronics industry in the mid-1980s as a way to measure the thickness of semiconductor chip layers. Audoin and his colleagues, in collaboration with a research group in biomaterials led by Marie-Christine Durrieu from the Institute of Chemistry & Biology of Membranes & Nano-objects at Bordeaux University, adapted picosecond ultrasonics to study living cells. They grew cells on a metal plate and then flashed the cell-metal interface with an ultra-short laser pulse to generate high-frequency sound waves. Another laser measured how the sound pulse propagated through the cells, giving the scientists clues about the mechanical properties of the individual cell components.

"The higher the frequency of sound you create, the smaller the wavelength, which means the smaller the objects you can probe" says Audoin. "We use gigahertz waves, so we can probe objects on the order of a hundred nan
'/>"/>

Contact: Ellen R. Weiss
eweiss@biophysics.org
240-290-5606
American Institute of Physics
Source:Eurekalert

Page: 1 2

Related biology news :

1. From the Amazon rainforest to human body cells: Quantifying stability
2. Programming cells: The importance of the envelope
3. Stanford scientists develop gene therapy approach to grow blood vessels in ischemic limbs
4. Queens scientists seek vaccine for Pseudomonas infection
5. Scientists produce eye structures from human blood-derived stem cells
6. American Society of Plant Biologists honors early career women scientists
7. Brandeis scientists win prestigious prize for circadian rhythms research
8. Scientists discover new method of proton transfer
9. Salk scientists open new window into how cancers override cellular growth controls
10. WileyChina.com - Now Featuring Bespoke Pages for China’s Life Scientists
11. Scientists win $2 million to study new pathway in development and maintenance of lymphoma
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/22/2014)... Dec. 22, 2014 Research and Markets ... the "The Global Watermarking and Fingerprinting Markets" ... http://photos.prnewswire.com/prnh/20130307/600769 This insight ... watermarking and fingerprinting markets. Watermarking aims to control ...
(Date:12/19/2014)... LaunchKey , the first decentralized mobile authentication and authorization ... era, today announced the close of $3 million in ... Metamorphic Ventures with participation from ENIAC Ventures, Crosslink Capital, ... has raised $4 million to date, and will use ...
(Date:12/17/2014)... DUBLIN , Dec. 16, 2014 Research and Markets ... of the "Global Chemical Sensor Market 2015-2019" ... http://photos.prnewswire.com/prnh/20130307/600769 One major trend upcoming in ... in biomedical applications. Chemical sensors help in recording of ...
Breaking Biology News(10 mins):The Global Watermarking and Fingerprinting Markets 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 3Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2
... human and animal research released today demonstrates how experiences ... presented at Neuroscience 2013, the annual meeting of the ... emerging news about brain science and health, provide new ... in behaviors like drug addiction and memory formation. ...
... Some vegetable oils that claim to be healthy may ... Canada should reconsider cholesterol-lowering claims on food labelling, states ... Medical Association Journal ) ., Replacing saturated animal fats ... they can reduce serum cholesterol levels and help prevent ...
... A condition of publishing in the Open Access life sciences ... the data underlying their findings publicly available alongside the article. ... issues around the lack of reproducibility of much published research, ... data plotting tool from F1000Research enables the data ...
Cached Biology News:Nurture impacts nature: Experiences leave genetic mark on brain, behavior 2Some 'healthy' vegetable oils may actually increase risk of heart disease 2F1000Research launch data plotting tool 2
(Date:1/22/2015)... Selexis SA, a serial innovation company ... (RCBs) used for drug discovery to commercial manufacturing, announced ... Next-Generation Sequencing (NGS) data packages. The NGS ... by ensuring the integrity of the gene, validation of ...
(Date:1/22/2015)... Medical Systems (NYSE: VAR ), world leader in ... to sustainability with inclusion on a prestigious list of the ... equipment company among the Corporate Knights Global 100 Most Sustainable ... Davos, Switzerland . "We ...
(Date:12/24/2014)... 2014  United Therapeutics Corporation (NASDAQ: UTHR ) ... ) has submitted a pre-market approval application to the ... of Medtronic,s SynchroMed ® II implantable drug infusion ... United Therapeutics, Remodulin ® (treprostinil) Injection delivered intravenously ...
(Date:12/24/2014)... “Preparative & Process Chromatography Market ... (Columns, Solvents, Buffers, Valves, Guages, Seals), Accessories, Services, ... Forecasts to 2019” provides a detailed overview of ... trends, and strategies impacting the preparative and process ...
Breaking Biology Technology:Selexis Generated Research Cell Banks Now Fully Sequenced Using Next-Generation Sequencing 2Varian Honored Among World's 100 Most Sustainable Corporations 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 3United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 4Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 2Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 4
... , , , , FLEXSTATION IS A ... SIMPLE, RAPID EXPERIMENTAL SET-UP AND DATA ANALYSIS , , ... , EXCELLENT FOR ASSAY DEVELOP-MENT AS DEMONSTRATED BY Z FACTOR ... G q -coupled receptors are transmembrane proteins that are responsible ...
... , , NO WASH STEPS , , ... HIGHER SIGNAL INTENSITY , , IMPROVED DATA QUALITY , ... FLIPR ASSAYS FOR GPCRS ... GPCR targets are preferred techniques in drug discovery because they generate high quality ...
... McGown, Ph.D. , Michael Su, M.S. and Jin Liao, M.D., Ph.D., ... Molecular Devices Corporation, 8/00 , , ... firefly (Photinus pyralis) is very popular foruse in Reporter Gene Assays. ... of light (Figure 1) 1 . When luciferase is the limiting ...
Cached Biology Technology:Gq-coupled receptor assays using FLEXstation: M1 muscarinic receptor 2Gq-coupled receptor assays using FLEXstation: M1 muscarinic receptor 3Gq-coupled receptor assays using FLEXstation: M1 muscarinic receptor 4FLIPR Calcium 3 Assay Kit Datasheet 2FLIPR Calcium 3 Assay Kit Datasheet 3Luciferase Reporter Gene Cells and Recombinant Luciferase Dilutions Studied with the CLIPR Luciferase Assay Kit and the LMax Microplate Luminometer (MaxLine Application Note #38) 2Luciferase Reporter Gene Cells and Recombinant Luciferase Dilutions Studied with the CLIPR Luciferase Assay Kit and the LMax Microplate Luminometer (MaxLine Application Note #38) 3Luciferase Reporter Gene Cells and Recombinant Luciferase Dilutions Studied with the CLIPR Luciferase Assay Kit and the LMax Microplate Luminometer (MaxLine Application Note #38) 4
Rabbit polyclonal to Tryptophanyl tRNA synthetase ( Abpromise for all tested applications). Antigen: Recombinant full length protein (Human): Tryptophanyl tRNA synthetase Entrez Gene ID: 745...
WTAP Antibody...
Anti-Dardarin Immunogen: Synthetic peptide from rat LRRK2. Available Date: 38814...
... to MSY2/YBOX2 ( Abpromise for ... Antigen: Synthetic peptide derived from ... of Human MSY2/YBOX2. (Note: the ... (Peptide available as ...
Biology Products: