[MURG] Atomic Microscopes Get Compound Vision

[Ed Minchau]

 --- "Joseph J. Strout" <joe at strout.net> wrote: 
> At 12:47 PM -0500 8/27/04, neurohacker wrote:
> 
> >Atomic Microscopes Get Compound Vision
>
>http://www.betterhumans.com/News/news.aspx?articleID=2004-04-05-1
> 
> No, this l ink is to " MRI Watches Blood Flow".  I
> think the link you meant is:
>
<http://www.betterhumans.com/News/news.aspx?articleID=2004-08-18-4>
> 
> I agree this is an important development, but not as
> directly 
> relevant as the first paragraph or two would make it
> sound.  Note how 
> it works: they attach an antibody to the AFM tip,
> and then they can 
> tell when it's trying to bind to a protein.  That
> means that that a 
> given scan only detects one particular type of
> protein (or, more 
> realistically, one protein plus other proteins that
> antibody happens 
> to bind to -- no one antibody is completely
> specific).

A few years ago I saw something about a device that
contained an array of tips (can't remember where
offhand, sorry).  Now, if each of those tips had a
different antibody attached to it, then scanning the
entire array across a sample would approach a more
complete chemical map.

Ed

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