> Moreover, current commercial tips that fit this spec are made of either non-biodegradable plastic or metal.

I'm not sure saving at most the few micrograms (the entire mosquito is only a handful of milligrams) of plastic here is really a major factor. Probably there are orders of magnitude more plastic in the tape on the box that they would ship it in.

Also not very clear how it can be 100% finer than current tips!