Existing product?: abrasive film with friction exposed nano holes
Hello everyone, I've been working on a project with microcapsules but have ran into a few issues so I'm exploring alternatives. Knowing little about
nanotech I thought I'd look here for help.
I'm looking for an existing product that works something like this: a film is placed over a gel containing a reagent. The film has laser drilled holes
that would usually allow the gel to squeeze through coating the film in a thin film of the reagent/reactive gel. However the small holes in the film
are plugged with a material that is abrasive such as aluminum oxide. When an object such as chalk is rubbed against the film, the abrasive both resist
enough to remove some of the chalk creating dust but also can be pulled out of the small holes in the film. The result is the reagent mixes with the
chalk like material only when the plugs have been removed by friction
I can think of multiple ways a film like this could be made and used. For instance two layers of drilled film on top of each other would have an epoxy
applied, the top layer would be nonstick Teflon and removed leaving hardened epoxy pluging the holes in the bottom piece and sticking up as an
abrasive where the holes where in the top piece.
Sorry for the long explanation, I'm sure tech like this exist. Does anyone know what it may be called or can think of something Similar? Thanks
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