Related by context. Frequent words. (Click for all words.) 70 oxygen atoms 68 carbon atom 68 oxygen atom 67 dimer 66 dimers 65 helices 65 crystal lattice 64 carbon atoms 62 adenine 62 atoms 62 hydrogen atoms 61 functionalized 61 fullerene 61 fibrils 61 alkyl 61 monolayer 61 nanometer sized 61 adsorbed 61 nanospheres 61 subunits 60 alternating layers 60 DNA strands 60 collagen fibers 60 graphene sheets 60 molecule 59 nanowire 59 guanine 59 dopants 59 hydride 59 nuclei 59 microstructures 59 molecules 59 tubules 59 oligomers 59 monomers 58 silicon oxide 58 nanoscopic 58 hydroxyl 58 fibronectin 58 ligands 58 cytosine 58 hydrogen atom 58 nanotubes 58 semiconducting 58 polypeptides 58 SWNTs 58 graphitic 57 ions 57 reactants 57 protein complexes 57 nanocrystal 57 phonons 57 vesicle 57 biological molecules 57 molecularly 57 ferromagnetic 57 cell membrane 57 membrane protein 57 anion 57 nanodiamonds 57 nanorods 57 bosons 56 outer membrane 56 excitons 56 anisotropic 56 titanium oxide 56 micelles 56 filaments 56 silicon substrate 56 metal ions 56 phospholipids 56 heterochromatin 56 nucleosome 56 nanostructure 56 nanocrystals 56 ligand 56 nanostructures 56 siliceous 55 nanoparticles 55 nanowires 55 organic molecules 55 magnetic particles 55 hydroxyapatite 55 waveguides 55 interfacial 55 hydrogen ions 55 hydroxide 55 lattice 55 zeolites 55 plasma membrane 55 fermions 55 atomic nuclei 55 silicates 55 electrons 54 nucleosomes 54 cofactor 54 quantum dot 54 crystalline structure 54 serine 54 filament 54 Nanowires