Scientists 'engineer' a jellyfish‎

Jul 30
10:22

2012

Ramyasadasivam

Ramyasadasivam

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CAMBRIDGE, Mass., July 23 (UPI) -- U.S. researchers say they've used inanimate silicone and living cardiac muscle cells to reverse engineer a freely swimming artificial "jellyfish."

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Researchers at Harvard University and the California Institute of Technology say the successful effort was a proof of concept for reverse engineering a variety of muscular organs and simple life forms.

A description of the research that led to the tissue-engineered jellyfish,Scientists 'engineer' a jellyfish‎ Articles dubbed "Medusoid," has been published in Nature Biotechnology.

Jellyfish propel themselves through the water by pumping, in an action similar to the way a human heart pumps blood through the body, researchers said.\

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"It occurred to me in 2007 that we might have failed to understand the fundamental laws of muscular pumps," Kit Parker, a Harvard professor of bioengineering, said.

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"I started looking at marine organisms that pump to survive. Then I saw a jellyfish at the New England Aquarium and I immediately noted both similarities and differences between how the jellyfish and the human heart pump."

Researchers used a sheet of cultured rat heart muscle tissue that would contract when electrically stimulated in a liquid environment to create an ersatz jellyfish.

The artificial construct was placed in container of ocean-like salt water and shocked into swimming with synchronized muscle contractions that mimic those of real jellyfish.

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