Related by context. Frequent words. (Click for all words.) 66 graphene sheets 66 crystal lattice 64 helices 63 atoms 63 nanoscopic 62 nanocrystal 62 titanium oxide 62 scanning tunneling microscope 61 nanometer sized 61 biological molecules 61 dimer 60 nanocrystals 60 fibrils 60 hydrogen atoms 60 nuclei 60 nanospheres 59 oxygen atoms 59 nanotubes 59 excitons 59 semiconducting 59 SWNTs 59 monolayer 59 filaments 59 dimers 59 microstructures 58 microchannels 58 nanorods 58 carbon atoms 58 molecule 58 molecules 58 quantum dots 58 nanowire 58 ferromagnetic 57 quantum dot 57 micelles 57 silicon nanowires 57 photonic crystal 57 organic molecules 57 nanostructures 57 nanowires 57 crystals 57 oxygen atom 57 magnetic particles 57 silicon substrate 57 crystalline structure 57 oligomers 57 fullerene 57 phonons 56 electrons 56 carbon atom 56 adenine 56 anisotropic 56 DNA strands 56 carbon nanotubes 56 silicon oxide 56 metal ions 56 waveguides 56 vortices 56 superfluid 55 alternating layers 55 macromolecules 55 ruthenium 55 nanoscale 55 polycrystalline 55 colloidal 55 vesicle 55 membrane 55 plasmons 55 hydride 55 silicon nitride 55 ions 55 resonator 55 magnetization 55 lattice 55 protein complexes 55 nanostructure 55 hydrogen atom 55 microfluidic device 55 nanotube 55 cerium 54 lattices 54 substrate 54 hydrogen ions 54 photodetector 54 monomers 54 chirality 54 carbon nanotube 54 aluminum oxide 54 bandgap 54 silicate 54 reactants 54 liquid droplets 54 helical 54 silicates 53 subunits 53 capsid 53 magnetic flux 53 filament 53 resonators 53 nanometer scale 53 PZT