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Adhesion of microorganisms: The mechanism???

Harry Rector herector at paltech.com
Sat Apr 17 02:45:53 EST 1999

Filters can remove material that is smaller than the pores because the flow 
lines need to curve a bit to squeeze air through. Particles that are heavy 
enough tend to follow straight lines (thanks to inertia), and impact on the 
substrate. Once a collision occurs, the stickiness that dominates things at 
that scale can take over (small particles will stick to almost anything -- 
Teflon included).
In article <3716EEBA.707E6DEB at student.uu.se>, Mattias Bergström 
<mabe1293 at student.uu.se> wrote: 
>I would deeply appreciate information about bacterial adherence to 
>different kind of surfaces. HEPA-filters for example keeps bacteria and 
>other micro-organisms from passing through, even though the pore size of 
>the filter is bigger than the bacteria being caught. 
>I’ve heard that the presence of proteins and some sugars, on the medium 
>(where the adhesion is to take place) greatly increases the attachment. 
>I’ve also heard that the mechanism of the adhesion is yet not known. 
>Is this correct? Are there any other chemicals that will increase the 
>attachment of the bacteria on the medium? Where can I find new 
>information about these things? 
>Thanks in advance, 
>Sincerely, Mr Bergstrom. 

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