Nanoparticles 200 nanoparticle 90 chemistry 76 Article 75 human 61 Metal nanoparticles 59 Humans 53 Synthesis (chemical) 53 controlled study 49 nanoparticles 43 NANOPARTICLES 41 Gold nanoparticles 40 nonhuman 40 Silver nanoparticles 39 Nanocomposites 38 Scanning electron microscopy 35 particle size 35 Nanofluidics 34 Animals 33 Fourier transform infrared spectroscopy 33 animal 32 X ray diffraction 31 drug delivery system 31 procedures 31 Diseases 30 unclassified drug 27 Titanium dioxide 26 metabolism 26 Metal Nanoparticles 24 Chitosan 23