Gecko climbing mechanism


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Gecko climbing mechanism

Post by dummy2006 » Fri Aug 18, 2006 7:43 am

Dear All,

Please kindly help me with this

How does the hydrophobic nature of gecko feet allow adhesion to wall surface and also why it is self-cleaning in nature????

How does this Van der Waals force on the toe hair interact with the surface to cause adhesion????

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David George
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Post by David George » Fri Aug 18, 2006 9:16 am

"Nothing in biology makes sense except in the light of evolution"
-Theodosius Dobzhansky

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Inland Taipan
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Post by MrMistery » Sat Aug 19, 2006 10:22 am

it is self-cleaning because the hydrophilic molecules of dust etc won't adhere to it. It helps by creating what is improperly termed by some molecular biologists "hidrophobic bonds"
About the hairs with Van der Wals forces. it's simple. the lizards has milions of hairs on it's legs so each forms one of those weak intermolecular bonds. Although weak in nature, the sole number of those bonds enables the lizards to walk on wals.
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

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