Gold nanoparticles (left); magnetic nanoparticles (right)
Electrically and magnetically active nanoparticles (left); Polyaniline nanowire (right).
Polyaniline nanowire bundle (left); Polyaniline-carbon nanotube composite (right).
Biologically-synthesized 20nm gold nanoparticles in solution (left); TEM image of nanoparticles (right).