Applied DNA Sciences Inc (APDN)

[freddumbo]

Skimmed perturberant-polymer application 20160362723 it's impressive. Really well written too. Dont have the knowledge to analyse the Claims. Anyway, I hadn't read about this technique before. But appears basically covers any kind of taggant not just DNA where you don't just add the taggant to a coating, but first mix it into a primary solution that creates pockets of sorts, like a suspension, in the polymer. Why? Because you can then use a solvent that only dissolves the perturberant, not the polymer, thereby extracting the taggant non-destructively. Imagine sampling an epoxy coat or a powder coat. You'd either take a chip or use a nasty solvent that would mar the surface finish. But here you'd swab it with say water or etoh or whatever, which doesn't do a thing to the coating, but the swab extracts a few micropores of the perturerant-taggant. If this actually works (they must have data to show the examiner), well I'm impressed, and if granted I think it would be difficult to create a robust taggant coating that doesn't have to be destroyed to verufy, without at least licensing from Apdn.