Related by context. Frequent words. (Click for all words.) 85 electron 81 photons 81 atoms 77 ions 71 photon 69 protons 68 magnetic fields 68 particles 66 hydrogen atoms 66 molecules 66 neutrons 65 nuclei 65 subatomic particles 65 proton 65 nanotubes 64 superconductivity 64 nanotube 63 quantum dots 63 nanowire 62 graphene 62 superconducting 61 particle 61 nanowires 60 molecule 60 nanoscale 59 gamma rays 59 superconductor 59 neutrinos 59 filaments 58 excitation 58 atom 58 carbon atoms 57 superconductors 57 quarks 57 cosmic rays 56 nanoparticles 56 cell membrane 55 galaxies 55 neutron star 55 conductivity 55 organic molecules 55 gravitational 55 chemical reactions 55 nanostructures 55 piezoelectric 55 nano scale 55 quantum 55 carbon nanotubes 54 electrode 53 cell membranes 53 dielectric 53 electromagnetic 53 biomolecules 53 carbon nanotube 52 quasars 52 magnetic 52 wavelengths 52 droplets 52 fluorescence 52 transistors 51 recombination 51 nanoparticle 51 transistor 51 pulsar 51 substrate 51 electrically charged 51 hydrophobic 51 electrodes 51 kinetic energy 51 molecular 51 water vapor 51 photosynthesis 51 neutron 50 filament 50 entropy 50 ion 50 quantum mechanics 50 electrostatic 50 oscillations 50 electrochemical 50 intracellular 50 nanometers 49 supernovae 49 proteins 49 conductive 49 optical fibers 49 neuron 49 velocities 49 distant galaxies 49 electrical impulses 49 membrane 49 anode 49 capacitor 49 tumor cells 48 spectroscopy 48 gaseous 48 neurons 48 synapse 48 diodes 48 dust particles 48 photonic