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BIOMECH - Gels, Mucus, Silks (mucus and gels (Slug mucus (How slugs crawl,…
BIOMECH - Gels, Mucus, Silks
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Silks
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mechanical properties
high stiffness, E~=1-10 GPa
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mucus and gels
anemones mesoglea is actually an example of a biological gel. theses all contain small amounts of relatively rigid polymer in water
glycoprotein, polysaccharide, gelatin
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Slug mucus
slugs and snails crawl using mucus covered feet, HOW?
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how slugs rest on walls
they pump salt solution into the mucus, which acts to form fibrous crosslines between molecules
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plant gels
agar and carrageenan are examples of gels found between the cells of red seaweeds, they buffer water around the fibrous cells and protect them
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helical sugar molecules wrap around each other & calcium ions, forming ridgid straight parts
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