Related by context. Frequent words. (Click for all words.) 73 calcium ions 64 ions 61 cell membrane 60 plasma membrane 59 lithium ions 59 endocytosis 58 adsorbed 58 molecules 58 stromal cells 57 electrons 57 metal ions 57 extracellular 57 cell membranes 57 phonons 57 crystal lattice 57 bile acids 56 excitatory 56 capillaries 56 membrane 56 membrane protein 56 hydrophilic 56 vesicle 56 analyte 56 intracellular 56 micelles 56 tubules 56 NMDA receptors 55 oxygen atoms 55 chemical messengers 55 nuclei 55 signaling molecules 55 macromolecules 54 hydrophobic 54 aqueous solution 54 nanocrystals 54 interfacial 54 cysteine 54 capillary 54 photons 54 hydrogen atoms 54 ferromagnetic 54 chloroplasts 54 cytoplasmic 54 lysosomes 54 outer membrane 54 leukocytes 54 lymphatic vessels 54 glycolysis 53 vesicles 53 ion channels 53 microtubules 53 integrins 53 reactants 53 neurones 53 electron 53 particles 53 membranes 53 inactivates 53 biological molecules 53 proton 53 proteins 53 phospholipids 53 epithelial cells 53 contractile 53 helices 52 stroma 52 HSCs 52 nerve impulses 52 microspheres 52 molecule 52 sensory neurons 52 reversibly 52 subunits 52 redox 52 receptors 52 magnetic nanoparticles 52 endoplasmic reticulum 52 ligands 52 liposomes 52 nanometer sized 52 binding proteins 52 magnetic particles 52 magnetization 52 adsorption 52 monocytes 52 lipids 52 photonic crystal 52 nanospheres 52 dimer 52 monolayer 52 heme 52 NMDA receptor 52 membrane proteins 51 microcapsules 51 galactose 51 hydrolysis 51 atoms 51 nanoparticles 51 microscale 51 conformational 51 microbubbles