CryoNet #33053 - #33054

CryoNet - Fri 12 Nov 2010

    #33053: Re: CryoNet #33051 - #33052 [Gerald Monroe]
    #33054: Re: How to avoid tearing a hole [Chris Manning]

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Message #33053
References: <[email protected]>
From: Gerald Monroe <[email protected]>
Date: Thu, 11 Nov 2010 04:22:35 -0600
Subject: Re: CryoNet #33051 - #33052

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Perry : fair enough.  There's a tremendous amount I don't know.
 But...cryogenic temperatures?  What would you power a device like this
with?  I can buy that a repair robot that could hide inside a cell and do
damage control at room temperatures could be built, but at cryogenic temps?
 My current degrees are all in biology.

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Message #33054
From: "Chris Manning" <[email protected]>
References: <[email protected]>
Subject: Re: How to avoid tearing a hole
Date: Fri, 12 Nov 2010 11:55:04 +1100

> Message #33051
> Date: Wed, 10 Nov 2010 11:13:08 -0500
> From: "Perry E. Metzger" <[email protected]>
> Subject: More nanotechnology talk
> References: <[email protected]>

[snip]

>> How can the robots even get into a cell without tearing a hole?
>
> You clearly can't enter a cell without producing a hole in it -- cell
> membranes are not Klein bottles, so getting from the outside to the
> inside requires a hole. The question is how you make a hole that is
> either easily repaired or which self-seals. Again, this has been
> considered before, in great detail. Freitas' "Nanomedicine" is quite
> comprehensive.

Nature must have solved this problem already, as water and nutrients pass 
into cells and wastes are removed. So - how does Nature do it? Can we 
imitate Nature, or even improve on it?

Here is an explanation of the Klein bottle:

http://en.wikipedia.org/wiki/Klein_bottle

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