A nanoparticle spray can turn regular paper into superpaper, rendering it waterproof, antimicrobial, magnetic and probably very expensive. Who said paper was an old technology?
Scientists at the Istituto Italiano di Tecnologia in Genoa, Italy, developed a process to cover any cellulose fiber, like paper or fabric, with a reactive coating. It involves combining the fiber molecules with a nanoparticle solution, creating a polymer matrix.
The cellulose fibers are wetted with an acrylic solution containing manganese ferrite nanoparticles, which are magnetic. When it gets wet, the mixture forms a nano-shell around each individual fiber, rendering the fiber water-repellent. Scientists can change the composition of the nanoparticles to make it more or less magnetically responsive, or to add other attributes, like perhaps fluorescence. Add some colloidal silver, and it could be antibacterial.
Aside from the small nano-shell around each of the fibers, the paper's properties don't change — you could still print with it, fold it, mail it or whatever you want, as Forbes explains. The paper could have a wide range of applications, from food packaging and medical documents to secure bank notes. Waterproof paper could be used to protect valuable documents, according to Roberto Cingolani, scientific director at the IIT.
The superpaper is described in the Journal of Materials Chemistry.
If the coating is durable to any real extent,this will go big.
Cool, very cool...But can you write on it?
Great if you can keep the grand kids from eating it. Otherwise not so much.
If it's waterproof, how does it decompose in landfills? How do you ultimately "destroy" the paper? Also what happens to the nanoparticles upon that destruction, does this require a special process?
but the most important question is can you water-paint on it?
Well it says it's a "nanoparticle spray" so it's a coating. So if you destroy the coating, scrape it off, you expose the non treated paper. Then it would decompose.
It's hydrophobic so you should be able to use anything that doesn't use water as a base solvent. Like a dry marker. It would probably have the same writing properties as waterproof paper that divers use under water.
Water paint first and then spray so your work doesn't run or bleed if it's in a humid area.
so if we spray this stuff on one side of the paper and then allow the paper to decompose from the the side with no coating on it, would it create a magnetic water-proof clear layer?
It's already been done! Here's a waterproof notepad to write on in water: www.myaquanotes.com
y dont they just add some kind of paperlike particle to it, and invent ink that will stay on it? if its nanoparticles couldn't that make books lighter? heck you could carry a mini bible [or copy of whatever large fantasy tome i currently read (currently rereading the game of thrones series weighs about 8 lbs)] school text books are lighter too. and that decreases waste paper into the environment.