Related by context. Frequent words. (Click for all words.) 69 fluorescent probes 67 microbeads 66 nanoprobes 65 nanoscale particles 65 SWCNT 64 microbubbles 64 silica nanoparticles 64 porphyrins 64 paramagnetic 63 nanobubbles 63 retinal tissue 62 electrochemically 62 fluorescent markers 61 polymer coatings 61 microfabricated 61 fluorophores 61 fluorescence microscope 61 chemiluminescence 61 fluorescently labeled 61 fluorescent molecules 61 microfluidic chips 61 nanoporous 61 iron oxide nanoparticles 61 nanomagnets 61 Quantum dots 60 biological molecules 60 nanocapsules 60 semiconducting materials 60 dye molecules 60 silicon nanoparticles 60 chromophores 60 photosensitizer 60 monomeric 60 QDs 60 proteins peptides 60 macromolecule 60 microdevices 60 porphyrin 60 optical biosensors 60 microscopy techniques 59 nanospheres 59 synthetic peptides 59 magnetic beads 59 nanodots 59 fluorescent marker 59 MWCNTs 59 protein albumin 59 radiotracer 59 bistable 59 neural progenitor cells 59 biomolecule 59 microenvironments 59 fluorescent proteins 59 Ultraviolet light 59 tumor biopsies 59 Dendrimers 59 microfluidic chip 58 microsphere 58 oligomer 58 hollow fibers 58 streptavidin 58 ERK1 2 58 polymer matrix 58 bioimaging 58 inorganic compounds 58 magnetic nanoparticles 58 dermal layer 58 thiols 58 thrombi 58 fibroblast cells 58 microlenses 58 semiconductor nanocrystals 58 magnetic particles 58 anionic 58 chromophore 58 micelles 57 hematopoietic cells 57 molecules 57 microspheres 57 fluorescent dye 57 micelle 57 mesenchymal stem cells MSCs 57 polyethylene glycol PEG 57 fluorescent dyes 57 cryostat 57 fluoresce 57 radioactive tracer 57 ultracold atoms 57 cells hESCs 57 nano particle 57 nanosized 57 reversibly 57 embryoid bodies 57 P selectin 57 outer membranes 57 monolayers 57 photosynthetic organisms 57 mesenchymal cells 57 diseased tissues 57 macromolecules 56 tumor antigens