photon correlation spectroscopy Article 18 priority journal 16 particle size 12 controlled study 10 zeta potential 10 Nanoparticles 8 chemistry 8 transmission electron microscopy 8 Dynamic light scattering 6 Light scattering 6 drug delivery system 6 nanoparticle 6 scanning electron microscopy 6 synthesis 6 Chitin 4 Chitosan 4 Controlled drug delivery 4 Dynamic Light Scattering 4 Ethylene 4 Fourier transform infrared spectroscopy 4 Liposomes 4 Molecular dynamics 4 Poloxamer 4 Raman spectrometry 4 Raman spectroscopy 4 Targeted drug delivery 4 X ray crystallography 4 X ray diffraction 4 chitosan 4