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Poly(ethylene oxide) (PEO) has been widely applied in the modification of biomaterials because it shows high hydrophilicity and excellent biocompatibility. In the current study, the surface of medical polyurethane (PU) films was modified to improve hydrophilicity and hemocompatibility by a facile method without catalyst. PU films were modified directly using poly(ethylene oxide) (PEO) with various...
TiO 2 nanoparticles treated with the organosilane allyltriethoxysilane (ATES) are used to improve the mechanical properties of dental resin-based composites (RBCs, Z100, 3M ESPE).TiO 2 nanoparticles were sonically dispersed in an ethanol solution containing ATES. The modified particles were washed in pure ethanol and dried before being used as filler. Fourier transform infrared spectroscopy...
Hyper-Rayleigh scattering (HRS) or incoherent second harmonic generation (SHG) technique has been used to investigate the second-order optical nonlinearities of nanoparticles and seems sensitive to nanoparticle surfaces. Here, more direct evidence that shows the importance of surfaces for HRS response of nanoparticles was experimentally obtained. Two CdS nanoparticles of 3nm average diameter with...
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