Related by context. Frequent words. (Click for all words.) 49 ions 47 Particles 47 Electrons 46 ion 45 nano particles 45 particles 43 molecules 43 atoms 42 Hg 42 microspheres 42 magnetic nanoparticles 42 nuclei 42 Electron 42 colloidal 41 laser pulses 41 ionizing 41 nanoparticles 41 Ion 40 colloids 40 ionization 40 nanospheres 40 electrons 40 hydrogen atoms 40 ionic 40 FRET 40 aqueous solution 40 micelles 40 ionized 40 oxygen atoms 40 dimer 40 particle 40 calcium ions 40 droplets 40 magnetic particles 40 microparticles 40 magnetic fields 39 Piezo 39 organic molecules 39 nanocrystals 39 microstructures 39 liposomes 39 laser pulse 39 metal ions 39 microcapsules 39 protons 38 dioxide 38 superfluid 38 silicates 38 macromolecules 38 quantum dots 38 atomic particles 38 redox 38 ferrite 38 neutrons 38 fluxes 37 membranes 37 viral particles 37 reactants 37 radiative 37 reversibly 37 oxidizes 37 fibrils 37 ceramide 37 titanium oxide 37 nanotubes 37 cell membranes 37 adsorption 37 adsorbed 37 vortices 37 filaments 37 molecule 36 excitation 36 electrodes 36 gravitationally 36 Rover 36 exhaust gases 36 sinusoidal 36 galvanic 36 magnetization 36 aluminum oxide 36 β 36 crystals 36 electrostatic 36 impurities 36 ion beam 36 capillary 36 nanorods 36 photons 36 electrochemical 36 droplet 36 conductance 36 resonant frequency 36 hydrogen atom 36 vibrational 36 atom 36 ligands 36 positrons 35 intracellular 35 Transistor 35 electron 35 electrode