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(Click for frequent words.) 75 oxygen atom 74 nitrogen atoms 73 hydrogen atoms 73 atoms 71 hydrogens 70 sulfur atoms 67 carbon atom 67 hydrogen atom 67 dye molecules 66 dimer 66 carbon atoms 66 molecules 66 electrons 66 oppositely charged 66 hydroxyl 65 chlorine atom 65 hydrogen nuclei 65 sodium atoms 65 orbitals 65 ions 65 nuclei 65 hydrogen ions 65 molecule 65 oxygen ions 65 oxygens 64 sulfur atom 64 nanoclusters 64 covalent bond 64 organic molecules 64 crystal lattice 64 helium atoms 63 bilayer 63 silicon atoms 63 zinc ions 63 excitons 63 adsorbed 63 chromophore 62 anions 62 nitrogen atom 62 dimers 62 magnesium ions 62 exciton 62 intermolecular 62 chlorine atoms 61 covalent bonds 61 diatomic 61 electrostatic repulsion 61 graphene layers 61 metal ions 61 electron 60 deuterium atoms 60 nanocrystals 60 adenine 60 trimers 60 valence electrons 60 crystallites 60 atomic nuclei 60 silicates 60 potassium atoms 60 amide 60 conduction electrons 60 particles 60 boron atoms 59 helices 59 manganese atoms 59 helium nuclei 59 unpaired electrons 59 chromophores 59 lithium atoms 59 electron pairs 59 nucleons 59 adatoms 59 electron spins 59 nanorod 59 ceria 58 chemically reactive 58 antiferromagnetic 58 hydroxyl radicals 58 monolayers 58 calcium ions 58 macrocycle 58 rubidium atoms 58 carbonate minerals 58 weakly interacting 58 fermions 58 membered rings 58 Saturn magnetosphere 58 van der Waals forces 58 superfluid 58 intramolecular 57 nanodots 57 carbene 57 ferromagnet 57 alkynes 57 DNA strands 57 bosonic 57 palladium nanoparticles 57 bosons 57 silicate minerals 57 nucleobases 57 bipyridine 57 epoxide 57 nanostructure 57 reactants 57 laser pulse 57 alpha particles 57 quasiparticles 57 nanotubes 57 subunits 57 tetrahedral 57 guanine 57 methyl groups 57 phosphorus atom 57 porphyrin 57 photons 57 titanium oxide 57 phonons 57 polaritons 57 neutrons 56 nanopillars 56 chloride ions 56 donor acceptor 56 porphyrins 56 quantum dots 56 crystalline structure 56 phosphorus atoms 56 tetramer 56 aerosol particles 56 filaments 56 cesium ions 56 hydrocarbon molecules 56 spherical particles 56 tetrahedra 56 fermionic atoms 56 graphene sheets 56 surfactant molecules 56 redox reactions 56 fullerene 56 sister chromatids 56 catalytically active 56 hydrides 56 anion 56 dihydrogen 56 hydrophobic 56 valence band 56 graphene sheet 56 wavefunction 56 disulfide bond 56 hydroxide ions 56 van der Waals 56 stilbene 56 histidine 56 gravitationally 55 lipid membranes 55 SWNTs 55 nanorods 55 vibrational modes 55 sodium ions 55 reactant 55 nanobubbles 55 amino acids 55 crystal lattices 55 titania 55 interstellar clouds 55 micelles 55 disulfide bonds 55 fluorine atoms 55 monomers 55 hexamers 55 rubidium atom 55 actin filaments 55 QDs 55 ionized 55 dopants 55 osmium 55 silicate dust 55 Earth magnetosphere 55 nanoparticles 55 thymine 55 excitations 55 protonated 55 cell membrane 55 helium ions 55 ligands 55 monolayer 55 anionic 55 nanocrystal 55 cobalt atoms 55 nonmagnetic 55 protoplanetary disk 55 thiols 55 alkyl 55 carbonic acid 55 aqueous solution 54 electrostatic interactions 54 nucleobase 54 nanowires 54 hydride 54 molecular orbitals 54 nanospheres 54 electron density 54 riboswitch 54 antiparallel 54 chemically bonded 54 helium atom 54 graphane 54 mesoporous 54 cadmium sulfide 54 ionizes 54 nucleon 54 Hydrogen atoms 54 carbons 54 dipoles 54 crystals 54 icosahedral 54 lipid molecules 54 RecA 54 tetrahedron 54 concentration gradient 54 ionised 54 polariton 54 magnetization 54 microstructures 54 electrical conductance 54 unpaired electron 54 muons 54 antiproton 54 amino acid residues 54 lattice vibrations 54 lipid bilayer 54 cell cytoplasm 54 Fermions 54 potassium ions 54 colloidal crystals 54 lipid membrane 54 chondrules 54 electrons orbiting 54 ionized oxygen 54 bilayer graphene 54 fermion 54 chlorophyll molecules 54 collagen fibrils 54 nanoparticle 54 graphene oxide 54 atom 54 magnetic dipole 54 interfacial 54 gate electrode 54 cesium atoms 54 moieties 54 thiol 54 conformations 54 nanodroplets 54 hydroxide 54 absorbs photons 54 crosslinks 54 graphite oxide 54 alkane 54 membrane pores 54 fluorescent dye molecules 53 electrons behave 53 beryllium ions 53 proton 53 hydrophobic interactions 53 protons 53 cerium oxide 53 thymine T 53 isotope ratios 53 titania nanotubes 53 γ 53 colloidal particles 53 membered ring 53 fibrils 53 dopant atoms 53 UV photons 53 aldehyde 53 antiparticles 53 cobalt atom 53 plasmons 53 liquid droplets 53 hydrophobicity 53 ionized gas 53 tetramers 53 nanowire 53 oxidizes 53 adsorption 53 cell outer membrane 53 antiparticle 53 biomolecule 53 planetesimals 53 pions 53 graphene flakes 53 silica particles 53 chlorophyll molecule 53 silica nanoparticles 53 nanotube 53 galactic disk 53 cadherin 53 carboxylate 53 exosphere 53 elongated orbits 53 magnetic fields 53 ultraviolet wavelengths 53 vacuoles 53 electrophilic 53 electron orbitals 53 merging galaxies 53 ring resonators 53 chlorophylls 53 electron pairing 53 chlorine monoxide 53 lithosphere 53 cyclization 53 plasmon 53 alkene 53 mesons 53 antiprotons 53 Mott insulator 52 interstellar medium 52 silicon monoxide 52 indium arsenide 52 uracil 52 electrons emitted 52 cadherins 52 calcite crystals 52 nanocages 52 zinc sulfide 52 Bose Einstein Condensate 52 ATP hydrolysis 52 ionize 52 actin binding 52 heparan sulfate 52 germanium silicon 52 magnons 52 silicate 52 photosphere 52 nanoribbons 52 magnetic particles 52 electrostatic attraction 52 ozone O3 52 dipole moment 52 quantum dot 52 circumstellar disk 52 chiral molecules 52 water vapor 52 oxygen isotopes 52 nucleation 52 magnetic flux 52 colloidal 52 microcapsules 52 protostar 52 quantum superposition 52 lithium ions 52 flavin 52 clathrates 52 massless particles 52 dopant 52 macromolecule 52 gold nanorods 52 chalcogenides 52 silicic acid 52 collagen fibers 52 nucleophilic 52 electronic excitations 52 quinone 52 protein subunits 52 aluminum oxide 52 atomic nucleus 52 pn junction 52 silica spheres 52 adsorbs 52 spheroidal 52 noble gases 52 Bose Einstein condensate 52 tholins 52 gold nanoclusters 52 anode electrode 52 dielectric layers 52 ultracold atoms 52 ferromagnetic 52 MWCNT 52 DNA helix 52 nonpolar 52 tin oxide 52 cesium atom 52 methanogenesis 52 antimatter particles 52 hemoglobin molecules 52 vortices 52 polypeptide chain 52 asparagine 52 covalent bonding 52 SiO 52 chemically 52 ligand 52 selenide 52 vesicles 52 fluorescent molecule 52 nucleotide 52 honeycomb structure 51 alkali atoms 51 CdSe 51 circumstellar 51 hydroxyl ions 51 fluorine atom 51 strange quark 51 alkanes 51 photon 51 RNA strands 51 ionise 51 strontium titanate 51 silicon oxide 51 infrared photons 51 rotaxanes 51 kinesins 51 hydrophobic molecules 51 diffraction grating 51 diffracted 51 perovskite 51 poly ethylene glycol 51 cementite 51 supersolid 51 membrane lipids 51 phonon 51 hollow spheres 51 nanostructures 51 basal layer 51 buckyball 51 valence electron 51 adsorb 51 micelle 51 Rydberg atom 51 buckyball wheels 51 fluorescent molecules 51 electron beams 51 magnetic dipoles 51 fibrin gel 51 disulfide 51 hydrogenase 51 F actin 51 microtubules 51 photoemission 51 molecularly 51 ionized hydrogen 51 sulfate aerosols 51 alkali metal 51 silicon substrate 51 Rydberg atoms 51 nanodiamonds 51 photochemical reactions 51 SWCNT 51 nucleosomes 51 photon beam 51 solar nebula 51 surface plasmons 51 nanobelts 51 photolysis 51 cytosine C 51 branes 51 electrostatically 51 quantum particle 51 fluoresce 51 magnesium ion 51 neutralinos 51 fluorophores 51 phytochrome 51 toroid 51 emit photon 51 electrochemical reactions 51 isotope fractionation 51 biomolecules 51 deuterium 51 photochemically 51 nanosheets 51 dinitrogen 51 substrate 51 protein filaments 51 biological molecules 51 hexagonal lattice 51 magnetosphere 51 nanogels 51 quasicrystal 51 solitons 51 X ray pulses 51 diffraction pattern 51 metastable 51 paramagnetic 51 microchannels 51 alpha particle 51 carbonyl 51 graphene 51 calmodulin 51 vesicle 51 unreacted 51 azide 51 caveolae 51 azobenzene 51 metallic ions 51 semiconductor nanocrystals 51 photosystem II 51 single walled nanotubes 51 fluorine 51 adhesion proteins 51 micron sized 51 antiquarks 51 inorganic ions 51 yttrium barium copper 51 tRNA 51 Ultraviolet light 51 olivine 51 infrared laser pulses 51 oppositely directed 50 ionized particles 50 covalently 50 epoxides 50 diffusible 50 COOH 50 accretion disk 50 hydrophobic surfaces 50 organic compounds 50 globular proteins 50 boron nitride 50 antineutrinos 50 optical lattice 50 Enceladus 50 rubidium vapor 50 cell membranes 50 sodium hydride 50 manganese ions 50 fluorophore 50 NADH 50 crustal rocks 50 MWNTs 50 gravitational attraction 50 icy comets 50 adsorbed onto 50 SMBHs 50 droplet 50 montmorillonite 50 SNARE proteins 50 acetyl CoA 50 carbonyls 50 superconductivity 50 Bose Einstein condensates 50 surface plasmon 50 magnetic nanoparticles 50 triangular lattice 50 electrically conducting 50 atomic lattice 50 buckyballs 50 fullerenes 50 liquid electrolyte 50 amorphous calcium carbonate 50 electron positron pairs 50 meson 50 cofactor 50 cyanide ions 50 antibody antigen 50 linker molecules 50 poly L lysine 50 nanoporous 50 alkenes 50 cadmium selenide 50 optical lattices 50 semiconducting 50 microcavities 50 relativistic particles 50 vibrationally 50 microbubbles 50 melittin 50 microscopic pores 50 spherical nanoparticles 50 conjugated polymers 50 oxide particles 50 hyperpolarized xenon 50 gluons 50 baryon 50 cobalt ions 50 RNA molecule 50 thermodynamically 50 ferric oxides 50 octahedral 50 membrane 50 macromolecules 50 heterodimers 50 waveguides 50 fermionic 50 functionalized 50 hexamer 50 post perovskite 50 hydroxyl molecules 50 pentacene molecule 50 hydrolysis 50 outer membrane 50 dioxide 50 antihydrogen 50 singlet oxygen 50 B meson 50 ATPase 50 ferric iron 50 quarks 50 micrometer sized particles 50 intercalation 50 β 50 filament 50 multi walled nanotubes 50 vibrational 50 cycloaddition 50 Electrons 50 superatoms 50 laser pulses 50 iron oxide nanoparticles 50 silicon waveguide 50 particle 50 multiwalled carbon nanotubes 50 proteoglycans 50 hydrophilic 50 filamentary 50 meta atoms 50 chlorine ions 50 carbenes 50 supramolecular 50 histone 50 pigment particles 50 multiferroic 50 photochemical reaction 50 microcapsule 50 hydrophilic polymer 50 MWNT 50 crystallinity 50 streptavidin 50 membranes 50 GPa 50 amyloid peptides 50 tau neutrinos 50 magnetic reconnection 50 martensite 50 microspheres 50 halides 50 nanocubes 50 kaons 50 Alfven waves 50 organelles 50 phosphonate 50 oxidants 50 glucose oxidase 50 nitride layer 50 nebular 49 helical structures 49 hyperfine 49 delocalized 49 dielectric layer 49 dimensional electron 49 mica sheets 49 thermal decomposition 49 terahertz pulses 49 deuterium nuclei 49 agglomerates 49 ultracold 49 nucleate 49 intermolecular forces 49 nitrogen N2 49 Photons 49 RNAP 49 unpolarized 49 thermal conductance 49 undoped 49 protein complexes 49 chemical reactivity 49 biominerals 49 electron affinities 49 carbonate ions 49 inhomogeneous 49 baryons 49 shorter wavelengths 49 cysteines 49 serine 49 AMPA receptors 49 electron neutrinos 49 Mg Fe 49 planets orbits 49 nanolayer 49 alkyne 49 glomerulus 49 protons neutrons 49 droplets 49 polymer matrix 49 cytochrome c 49 cuprates 49 HD #b [002] 49 adsorbing 49 dimerization 49 nano particles 49 ssDNA 49 dipolar 49 catalytic reactions 49 anode 49 silicon dioxide SiO2 49 crystalline lattice 49 cysteine residue 49 silicate rocks 49 electrically insulating 49 CMB photons 49 ultracold molecules 49 photoactive 49 strange quarks 49 electrochemically 49 Diels Alder 49 hemoglobin molecule 49 fissions 49 nucleosome 49 SWCNTs 49 antiferromagnets 49 vibrational frequency 49 pentamer 49 coiled coil 49 self assembled monolayer 49 DNA adducts 49 ejecta 49 circular orbits 49 bromine atoms 49 cysteine residues 49 methyl 49 vibrationally excited 49 divalent 49 photonic crystal 49 gamma rays emitted 49 silicate glass 49 disulfide bridges 49 microtubule 49 nanomotors 49 PIP3 49 antiquark 49 membrane fusion 49 fluorescent probes 49 hydroxyl radical 49 goethite 49 nanoshell 49 cm -1 49 vacuole 49 fluoresces 49 ribozyme 49 chromosphere 49 stoichiometry 49 ytterbium 49 molten droplets 49 lipophilic 49 angiotensinogen 49 pentagons 49 X ray emission 49 #BP# 49 WIMPs 49 leptons 49 graphene membrane 49 carboxyl 49 nucleotides 49 duplicated chromosomes 49 nanoscopic 49 histone proteins 49 nanoribbon 49 spacetime 49 microwave photon 49 hadrons 49 dust particles 49 Bose Einstein condensate BEC 49 oxidizing agent 49 disulphide 49 mitochondrial membrane 49 oxidant 49 COFs 49 fibrillar 49 heterochromatin 49 muon 49 5' triphosphate 49 micrometre sized 49 quantum coherence 49 photocurrent 49 rotational axis 49 silicate mantle 49 nanosized 49 viscous fluid 49 photon energies 49 catalytically 49 photosynthetic bacteria 49 absorbs sunlight 49 bandgap 49 endonuclease 49 optical resonator 49 ions atoms 49 Diels Alder reaction 49 photocatalyst 49 NWs 49 crystalline solids 49 mannose 49 dynein 49 superfluids 49 interstellar dust clouds 49 nanodiamond 49 racemic mixture 49 graphene membranes 49 emission spectra 49 alpha catenin 49 clathrate 49 covalently bonded 49 myoglobin 49 neuroligins 49 eutectic 49 nanoprobe 49 fluorescent dye 49 spherically symmetric 49 cysteine 49 electric dipole 49 CAIs 49 polyaniline 49 electron orbiting 49 chemisorption 48 organometallic 48 radiative 48 azides 48 electrode 48 μm thick 48 ultrananocrystalline diamond 48 thermodynamically stable 48 torus 48 photoelectrochemical 48 erbium 48 cytosine 48 pyrimidine 48 interatomic 48 bacterial enzyme 48 starburst galaxies 48 superoxides 48 compressive stress 48 centrosomes 48 gravitons 48 nanometers thick 48 emits photon 48 helicases 48 pyroxene 48 oligomers 48 laser excitation 48 synaptic vesicles 48 halide 48 amorphous silica 48 photonic bandgap 48 nanomagnets 48 polycrystalline 48 mitotic spindle 48 magnetotail 48 zirconium oxide 48 adsorbate 48 chirality 48 quantum mechanically 48 xenon atoms 48 ferromagnetism 48 interconversion 48 galaxy clusters 48 nucleating 48 uranyl 48 magnetic coupling 48 block copolymer 48 membrane protein 48 adduct 48 tPNA 48 inorganic compounds 48 molecules adsorbed 48 soluble proteins 48 ferroelectricity 48 ionic liquid 48 enzyme luciferase 48 proteins 48 circumstellar disks 48 imine 48 wavelengths 48 self assembled monolayers 48 homodimer 48 centrosome 48 LOV domain 48 bilayers 48 lanthanum strontium 48 Io volcanoes 48 neutral mass spectrometer 48 carbonaceous chondrites 48 conductivity 48 proton pump 48 ribose 48 anthracene 48 nanosphere 48 aragonite 48 supercurrent 48 fission yeast 48 lepton 48 actin filament 48 cellular membranes 48 infrared laser beam 48 pyridine 48 desorption 48 carbon nanotubes 48 intracellular 48 californium 48 single celled algae 48 odorant molecule 48 nucleotide bases 48 semiconducting materials 48 liposomes 48 intermetallic compounds 48 graphite whiskers 48 crosslinked 48 VRC# [001] 48 carbonate globules 48 substituents 48 fluorescence resonance energy 48 steric 48 oxide layer 48 x ray absorption spectroscopy 48 electrically conductive 48 magma ocean 48 cellular organelles 48 hydrogen helium 48 rocky planets 48 asthenosphere 48 ZnO 48 platinum Pt 48 cohesin 48 zeolites 48 graphitic 48 angular momentum 48 superlens 48 kcal mol 48 accretion disks 48 conventional superconductors 48 dsRNA 48 radioactive decay 48 fluorescing 48 heterojunctions 48 radioactive nuclei 48 refractive indices 48 rotaxane 48 blue supergiant 48 cofactors 48 Saturn rings 48 inner mitochondrial membrane 48 pyrrolysine 48 magnetisation 48 B mesons 48 nanoholes 48 limonene oxide 48 endosome 48 ferrofluid 48 electrons protons 48 chromatids 48 quasicrystals 48 RNA strand 48 homologs 48 metamaterial 48 focal adhesions 48 photosystem 48 diffract 48 SiO 2 48 gravitational interaction 48 Methane hydrate 48 dimeric 48 magnetic monopoles 48 SNARE complex 48 ultraviolet photons 48 nanometer sized 48 polypeptide chains 48 agarose 48 pyruvate 48 CD4 receptors 48 aryl 48 cytosol 48 photon fluorescence 48 baryonic 48 cm -3 48 Fig. 4B 48 strontium atoms 48 positrons 48 terahertz radiation 48 surface plasmon resonance 48 galactic clusters 48 oxidise 48 titin 48 Muons 48 absorption spectra 48 unicellular organisms 48 outflowing 48 exothermic 48 polymer membranes 48 superlattices 48 C#H# 48 solvation 48 arrestin 48 Fig. 1A 48 uncharged particles 48 dwarf galaxies 48 lunar crust 48 carborane 48 bacterial enzymes