Battery
http://en.wikipedia.org/wiki/Serotonin
http://en.wikipedia.org/wiki/Semiconductor
Luminescent substance
http://en.wikipedia.org/wiki/Biometrics
Ophthalmic membrane stain
Substrate
http://en.wikipedia.org/wiki/Electromagnet
http://en.wikipedia.org/wiki/Ciclosporin
Intraocular disease
Actuator
http://en.wikipedia.org/wiki/Carbon_nanotube
Memory disorder
DNA nanotube
Natural material
http://en.wikipedia.org/wiki/Electromagnetic_shielding
Voice modifier
http://en.wikipedia.org/wiki/Remote_surgery
