Navigation Links
Scientists discover 'dancing' algae
Date:4/20/2009

Scientists at the Cambridge University have discovered that freshwater algae can form stable groupings in which they dance around each other, miraculously held together only by the fluid flows they create. Their research was published today in the journal Physical Review Letters.

The researchers studied the multicellular organism Volvox, which consists of approximately 1,000 cells arranged on the surface of a spherical matrix about half a millimetre in diameter. Each of the surface cells has two hair-like appendages known as flagella, whose beating propels the colony through the fluid and simultaneously makes them spin about an axis.

The researchers found that colonies swimming near a surface can form two types of "bound states"; the "waltz", in which the two colonies orbit around each other like a planet circling the sun, and the "minuet", in which the colonies oscillate back and forth as if held by an elastic band between them.

The researchers have developed a mathematical analysis that shows these dancing patterns arise from the manner in which nearby surfaces modify the fluid flow near the colonies and induce an attraction between them. The observations constitute the first direct visualisations of the flows, which have been predicted to produce such an attraction. They have been implicated previously in the accumulation of swimming microorganisms such as bacteria and sperm cells near surfaces.

These findings also have implications for clustering of colonies at the air-water interface, where these recirculating flows can enhance the probability of fertilization during the sexual phase of their life cycle.

Professor Raymond E. Goldstein, the Schlumberger Professor of Complex Physical Systems in the Department of Applied Mathematics and Theoretical Physics (DAMTP) and lead author of the study, said: "These striking and unexpected results remind us not only of the grace and beauty of life, but also that
'/>"/>

Contact: Genevieve Maul
genevieve.maul@admin.cam.ac.uk
44-122-333-2300
University of Cambridge
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Gladstone scientists uncover potential mechanism of memory loss in Alzheimers disease
2. Three Studies by Independent Scientists Highlighting Pressure Cycling Technology (PCT) to be Presented this Week at the British Mass Spectrometry Societys 29th Annual Meeting
3. Social Network for Scientists Marks Ten Years Online
4. Scientists synthesize memory in yeast cells
5. Scientists synthesize memory in yeast cells
6. University of Leicester scientists discover technique to help friendly bacteria
7. Scientists discover how cancer may take hold
8. Yale scientists make 2 giant steps in advancement of quantum computing
9. New Scientists Boost Disease-based Research at Boston Biomedical Research Institute
10. Scientists say sabercat bit like a pussycat
11. New Corporate Website Launched - Focus on Life Scientists, Flow Cytometrists, & Clinicians
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/15/2014)... TAIPEI , Jan. 15, 2014 TaiGen Biotechnology ... an exclusive agreement with R-Pharm, a leading Russian pharmaceutical ... in the Russian Federation , ... Commonwealth Independent States (CIS). Nemonoxacin is a novel antibiotic for ...
(Date:1/14/2014)... 14, 2014 Carahsoft and CDS Federal ... 23, 2014 at 2pm EST (11am PST), ā€œNatural Language ... focuses on how technology can turn raw, heterogeneous data ... government agencies. The online webinar will last approximately one ...
(Date:1/14/2014)... a leading provider of strategic communications services to corporations and organizations ... the United States and Europe ... is returning to the firm,s Washington, D.C. ... than two years of service as Associate Commissioner for the Office ...
(Date:1/14/2014)... NY (PRWEB) January 14, 2014 EquitiesIQ, ... Alliqua, Inc. (OTCQB: ALQA). Alliqua is an emerging biomedical ... serve the wound care market. , Free report download: ... restructured with a seasoned management team and Board, which ...
Breaking Biology Technology:TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 2TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 4Webcast - Natural Language Processing: Converting Raw Data into Actionable Knowledge ā€“ Hosted by Carahsoft and CDS Federal Services 2Former FDA Associate Commissioner Returns To 3D Communications 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3
... working with highly-concentrated, opaque, or solid samples ... cells, polymer films, or phosphors, front-face fluorescence ... qualitative fluorescence measurements. Highly concentrated and opaque ... complete attenuation of the beam. When measuring ...
... , ... , Fluorescence immunoassay is applied ... stimulation. Interference from other sample components is limited by use ... The detection system includes a T-format sampling module mounting two ...
... By Laura Gaidar, Kristin Prasauckas, , ... , PerkinElmer Life Sciences, Inc. ... , AlphaScreen technology is ... high throughput screening applications. PerkinElmer Life Sciences has developed two instruments for ...
Cached Biology Technology:Immunoassay of Theophylline by fluorescence polarisation 2Immunoassay of Theophylline by fluorescence polarisation 3Immunoassay of Theophylline by fluorescence polarisation 4Immunoassay of Theophylline by fluorescence polarisation 5Immunoassay of Theophylline by fluorescence polarisation 6Comparison of Performance between the AlphaQuest - HTS and the Fusion α Multilabel Reader for Detection of cAMP 2Comparison of Performance between the AlphaQuest - HTS and the Fusion α Multilabel Reader for Detection of cAMP 3Comparison of Performance between the AlphaQuest - HTS and the Fusion α Multilabel Reader for Detection of cAMP 4
(Date:4/23/2014)... turning away from using triclosan as an antimicrobial ingredient ... And now scientists are reporting new evidence that appears ... ACS journal Chemical Research in Toxicology , found ... octylphenol, promoted the growth of human breast cancer cells ... , Kyung-Chul Choi and colleagues note that hormonal imbalances ...
(Date:4/23/2014)... date of the family of bacteria that causes ... and reveals surprising findings about the bacteria,s origin ... health strategies to control this respiratory disease, which ... analysis of 343 strains of the Bordetella ... over the last 100 years illustrates how vaccination ...
(Date:4/23/2014)... April 23, 2014 A biomedical engineer at the ... innovative technology to make blood transfusions safer. His work ... National Institutes of Health (NIH). , Blood transfusions ... of modern medicine,s absolute necessities. Without them, for instance, ... transfusions are perfect, however. There,s strong evidence that transfusions ...
Breaking Biology News(10 mins):In lab tests, the antimicrobial ingredient triclosan spurs growth of breast cancer cells 2Impact of whooping cough vaccination revealed 2UH biomedical engineer works to make blood transfusions safer 2UH biomedical engineer works to make blood transfusions safer 3
...   According to a new market research ... - 2015) ", published by,MarketsandMarkets ... reach $3656.8 million by,2015 at a CAGR of 27.6% and ... 2015 at a CAGR of 25.6% ...
... , Like the vast African plains, two huge expanses of ... an array of marine predators in predictable seasonal patterns, according ... of Pacific Predators (TOPP) project published today in the ... decade-long effort to track top marine predator movements in the ...
... in the North Sea will promote fish stock recovery and ... the University of York., In the North Sea up to ... caught, with the result that many fisheries are now badly ... the late 1980s and their fisheries are now some of ...
Cached Biology News:MarketsandMarkets: Global Touchless Sensing Market to be Worth $3656.8 Million and Global Gesture Recognition Market Worth $625 Million by 2015 2MarketsandMarkets: Global Touchless Sensing Market to be Worth $3656.8 Million and Global Gesture Recognition Market Worth $625 Million by 2015 3MarketsandMarkets: Global Touchless Sensing Market to be Worth $3656.8 Million and Global Gesture Recognition Market Worth $625 Million by 2015 4Teeming with life, Pacific's California current likened to Africa's Serengeti Plain 2Teeming with life, Pacific's California current likened to Africa's Serengeti Plain 3Teeming with life, Pacific's California current likened to Africa's Serengeti Plain 4Teeming with life, Pacific's California current likened to Africa's Serengeti Plain 5Discards ban 'will boost fisheries', says new research 2
... 2000 instrument can be used as a ... Data Manager Software provides the means to ... the instrument. These data can then be ... such as Microsoft Excel or Lotus 123, ...
... allows for quick and reproducible immunoprecipitation (IP) by ... is more reproducible than regular IPs, which are ... agarose without disrupting the agarose bed. The binding ... is reversible, and elution of the immune complex ...
... description: self locking design in ice/water ... new product number, created to easily ... no availability yet, please order under ... contact customer service for assistance. ID ...
Kit containing MACS equipment and reagents for immunopurification of proteins....
Biology Products: