Related by context. Frequent words. (Click for all words.) 65 proteins 62 molecules 62 epithelial cells 61 antigen 61 antibodies 61 immune cells 60 tumor cells 59 peptides 59 antigens 59 mammalian cells 59 yeast cells 59 vesicles 58 dendritic cells 58 cytoplasm 58 macrophages 58 bacterium 58 monocytes 58 microorganism 58 cells 58 molecule 57 bacteria 57 phage 57 pathogenic bacteria 57 droplets 57 nanoparticles 57 RNA molecules 57 diseased cells 56 malaria parasites 56 lymphocytes 56 microorganisms 56 cell membrane 56 microspheres 56 droplet 56 spores 56 liposomes 55 pathogens 55 enzymes 55 organism 55 nanocrystals 55 particles 55 microbes 55 neurons 55 intracellular 55 biofilm 55 biomolecules 55 malaria parasite 54 malignant cells 54 DNA strands 54 membrane 54 microbe 54 nerve cells 54 spore 54 neutrophils 54 nanoparticle 54 photons 53 nanotubes 53 viruses 53 enzyme 53 secretions 53 fibroblasts 53 bacterial 53 antibody 53 protease 53 plasmid 53 micro organisms 53 biofilms 53 messenger RNA 53 S. aureus 52 organisms 52 lipids 52 nuclei 52 membranes 52 protein 52 cytokines 52 nucleic acids 52 cancerous cells 52 electrons 52 siRNA 51 pathogen 51 bloodstream 51 progenitor cells 51 nano particles 51 adenovirus 51 extracellular 51 peptide 51 islet cells 51 quantum dots 51 cell membranes 51 capillaries 51 nucleotide 50 RNAs 50 influenza virus 50 prions 50 ligands 50 siRNAs 50 atoms 50 retrovirus 50 recombinant proteins 50 substrate 50 cytokine 50 transgenic mice