RE: NANO: Passive nanofilter

Billy Brown (
Mon, 19 Jul 1999 18:15:25 -0500

Technotranscendence wrote:
> What is a passive nanofilter? It is a device which filters particles
> on electrostatic properties at the nanometer scale. How could this be
> It could do this through use of it's configuration and composition. I
> imagine a membrane with pores whereing the pores might be surrounded with
> atoms of certain types and with a certain geometry all imbedded in some
> of structure. There are no moving parts per se -- hence the "passive."
> What could this be used for? Separation of materials obviously, including
> filtering water to greater degrees of purity, removing chemicals from
> liquids or gases, or separating a mixture of several substances into
> caches of near pure substances.

Don't osmotic filtration systems already work this way? I think I've heard of other related applications as well, but the details escape me.

Billy Brown, MCSE+I