nanotechnology

Ferrofluid is passed over a pre-recorded HDD media,

(a section of a magnetic hard drive typically in a computer)

For longitudinally recorded media, as pictured here, stray

magnetic field lines draw the nanoparticles into position.

Translation stages and recording signals record the desired

pattern onto the magnetic media which can be reprogrammed

as needed similar to editing a text document with a word

processor.

A polymer is applied and can peel off the nano pattern as

a flexible, transparent film for optical or electrical devices.