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Thread: self-healing surfaces

  1. #1 self-healing surfaces 
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    Dear all,

    I am posting to ask you a question:

    We all know form our direct experience that upon a scratch on our skin, our blood is well equipped to heal the skin surface. However, I do believe that this is not the only “self-healing" process taking place in nature, isn't it?

    My question is:

    Do you know other examples of self-healing surfaces?
    If yes, can you please give me a few more examples?

    Thanks!

    Fab


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  3. #2  
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    A lot of simpler life forms can regenerate, if that's what you mean. Chop a worm in half, watch 2 grow in its place. With less organ specialization, regeneration is easier. As far as non-life "self-healing" surfaces, I'm not really sure what you mean.


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  4. #3  
    Universal Mind John Galt's Avatar
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    DNA repair mechanisms are at work all the time. The components of all cells are continually being replaced. Manycells within multi-celled organisms have a limited 'shelf life'. In some simpler animals re-generation of entire organs is possible.
    In short, 'self healing' is so commonplace that one could almost include it a defining characteristic of life.
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  5. #4  
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    i posted in the chem version,
    a sexual reproduction , especuially in plants ,like taking a cutting and re plating the cutting, the cutin grows roots, and becomes an independant plant.

    or starfish , as far as i know, they can grow their arms back,when they get damaged
    Stumble on through life.
    Feel free to correct any false information, which unknown to me, may be included in my posts. (also - let this be a disclaimer)
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  6. #5  
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    Please correct me if I'm wrong, but don't plants have some self-healing capabilities similar to the formation of scabs on animals? Plants make a pitch-like product to plug up holes to keep the tre from bleeding fluids while it continues to grow. Also when a tree is sapped (to make syrup and such), the vein has to be retapped each year because of these capabilities.
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  7. #6  
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    Thanks you all for your reply and I am sorry if the question was not that clear. Let me try to make my point differently:
    Besides the healing of skin and/or other biological tissue are you aware of some inorganic or inorganic-organic healing processes. For example, can a stone or a mineral repair its surface (without taking millions of years)? What’s about the had body (outside) of crabs and other invertebrates?

    Regards,

    Fabrizio
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  8. #7 tree and regeneration 
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    by the way, does anybody know how a tree regenerates its tissues? Suppose that I make a hole on a tree what's the fluid coming out?

    Fabrizio
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  9. #8  
    Universal Mind John Galt's Avatar
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    Quote Originally Posted by Fab1976
    Besides the healing of skin and/or other biological tissue are you aware of some inorganic or inorganic-organic healing processes. For example, can a stone or a mineral repair its surface
    I would say there are none, by reason of semantics: healing is by definition something effecting living systems. It has no real significance when applied to the inorganic.

    does anybody know how a tree regenerates its tissues?
    As any living things does, by cell division.
    Suppose that I make a hole on a tree what's the fluid coming out?
    Sap.
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  10. #9  
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    I also do not think that there are natural healing processes in stones or whatever other inanimate objects come to my mind. I would assume that only a living organism can heal, or at least things that are not inanimate and with a set molecular structure, like a crystal or stone. In those, there is just nothing that can heal, just a certain structure of chemicals arrayed to make it a pretty solid object.

    So, in short, if it is alive, it surely has a healingprocess similar to that of humans. If it is not alive, it cannot possibly heal since there is:

    a) no reason
    b) no motivation
    c) no capability
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  11. #10  
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    Tail of some lizard can be cut..... but in time it eventually grows fully back to its original lenght !
    Want to have unlimited power? Dont stop learning and u'll have it.

    http://science.mojforum.si
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