Related by context. Frequent words. (Click for all words.) 58 magnetic nanoparticles 56 optical tweezers 55 ultrasonic waves 55 microfluidic devices 54 biological molecules 54 sensor arrays 54 microelectrodes 54 iron oxide nanoparticles 54 scanning tunneling microscope 53 microfluidic device 53 magnetic particles 52 nanospheres 52 bronchoscope 52 nanosensors 52 optical coherence tomography 52 biomolecule 52 optical microscopes 52 dye molecules 52 sentinel lymph node 51 microbubbles 51 superconducting magnet 51 electrically conducting 51 biochip 51 frequency comb 51 gold nanorods 51 capillary electrophoresis 51 fluorescence imaging 51 endoscope 50 electromagnets 50 electron beams 50 laparoscope 50 nanomachines 50 intravascular ultrasound 50 laser ablation 50 artificial cornea 50 electrodes 50 microelectromechanical systems MEMS 50 optical biosensors 50 biocompatible 50 minimally invasive technique 50 transplanted stem cells 49 fluorescent dyes 49 collimator 49 biochips 49 nanoshells 49 AFMs 49 nanometer sized 49 nano particle 49 diseased tissue 49 microscale 49 nanomechanical 49 mass spectrometer 49 Doppler ultrasound 49 fluorescent dye 49 QDs 49 magnetically 49 electron spins 49 microchannels 48 noninvasively 48 confocal microscopy 48 fluorophores 48 MEMs 48 interferometers 48 liposome 48 microelectronic devices 48 microcapsules 48 nanoparticles 48 Implantable 48 optical microscope 48 near infrared spectroscopy 48 tomography 48 endoscopes 48 electrode 48 Metamaterials 48 nanotubes 48 nanogenerators 48 tandem mass spectrometry 48 electrophoresis 48 fluidics 48 gas chromatograph 48 Virtual colonoscopy 48 infrared laser 47 CT computed tomography 47 Nanotube 47 DNA microarray 47 photonic crystals 47 near infrared NIR 47 endotracheal tube 47 nanoscale structures 47 ultrasmall 47 nanolithography 47 da Vinci robot 47 optical microscopy 47 nanoparticle 47 Piezoelectric 47 electromagnet 47 microsphere 47 endoscopically 47 ultrasensitive 47 chromophores 47 nanosized