Abstract
One of the most serious problems in fluorescence bio-imaging is the limitation of observation time due to color-fading of the fluorescence probes and damages on the bio system, both of which are caused by the excitation ultraviolet irradiation. This problem can be solved by using an upconversion emission of rare-earth doped inorganic nanophosphors under infrared excitation. For the application of nanophosphors as bio-imaging probes, surface modification by biocompatible polymers is needed to obtain biological functionality in organic tissues. In this paper, authors demonstrate the formation of poly(acrylic acid) (PAAc) and &alfa-acetal-poly (ethylene glycol)-block-[poly (2-(N,N-dimethylamino) ethyl methacrylate)] multilayers on the Er-doped Y2O3 nanoparticles as an upconversion nanophosphor. The existence of the layers was confirmed by using zeta electrometry and infrared vibrational spectroscopy measurements.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
