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New method for measuring fluid flow in algae could herald revolution for fluid mechanics

Date:
February 9, 2010
Source:
Cambridge University Press
Summary:
Researchers in fluid dynamics have studied algae to illuminate fluid mechanics. One of the researchers said, "Nature has long inspired researchers in fluid mechanics to explore the mechanical strategies used by living creatures. Where better to look for innovative solutions to a technological challenge than to organisms that have had millions of years to devise strategies for related challenges?"

In the words of Todd Squires, of the University of California, Santa Barbara "Nature has long inspired researchers in fluid mechanics to explore the mechanical strategies used by living creatures. Where better to look for innovative solutions to a technological challenge than to organisms that have had millions of years to devise strategies for related challenges?"

Now two research groups from the University of Cambridge, led by Professor Ray Goldstein of the Department of Applied Mathematics and Theoretical Physics, and Professor Lynn Gladden of the Department of Chemical Engineering and Biotechnology, have done just that. Their findings are published in volume 642 of Journal of Fluid Mechanics, published by Cambridge University Press.

They have studied the giant cells of the Characean algae -- cells that can measure up to 10cm in length and 1mm in diameter. This exceptional size makes the standard methods of distributing material within cells impossible, so Characean algae have long been known to employ 'conveyor belts' along their cellular walls to move food and waste around. It is the spatial distribution of the velocity of this movement that has been measured for the first time using state-of-the art magnetic resonance imaging techniques.

The impact of their discoveries and research techniques will be far-reaching. Professor Squires comments: "[The methods used] are incredibly powerful and have the potential to revolutionise our understanding of a wide range of environmentally and industrially relevant fluid flows. The technique is completely non-invasive, requires no flow tracers and can be performed in non-transparent materials."

Looking to the future, Professor Squires stated that this study 'should serve as a potent reminder that the immense variety of organisms on Earth contains a wealth of expertise that may be mined for biomimetic [i.e. nature-imitating] solutions.'


Story Source:

The above story is based on materials provided by Cambridge University Press. Note: Materials may be edited for content and length.


Journal References:

  1. Van De Meent et al. Measurement of cytoplasmic streaming in single plant cells by magnetic resonance velocimetry. Journal of Fluid Mechanics, 2010; 6425 DOI: 10.1017/S0022112009992187
  2. Squires et al. A furtive stare at an intra-cellular flow. Journal of Fluid Mechanics, 2010; 6421 DOI: 10.1017/S0022112009992990

Cite This Page:

Cambridge University Press. "New method for measuring fluid flow in algae could herald revolution for fluid mechanics." ScienceDaily. ScienceDaily, 9 February 2010. <www.sciencedaily.com/releases/2010/02/100208144852.htm>.
Cambridge University Press. (2010, February 9). New method for measuring fluid flow in algae could herald revolution for fluid mechanics. ScienceDaily. Retrieved April 18, 2014 from www.sciencedaily.com/releases/2010/02/100208144852.htm
Cambridge University Press. "New method for measuring fluid flow in algae could herald revolution for fluid mechanics." ScienceDaily. www.sciencedaily.com/releases/2010/02/100208144852.htm (accessed April 18, 2014).

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