Abstract
For the first time, the photoluminescence (PL) spectra of porous anodized aluminum oxide (AAO) films impregnated with essentially non-fluorescent 3, 5, 7, 2′, 4′-pentahydroxyflavone (morin) and morin–human immunoglobulin (IgG) were investigated and compared with those of liquid solutions. It was found that their PL band positions are similar to that of morin–Al 3+ in ethanol solution, and the PL intensity of embedded morin alone can be enhanced greatly by the introduction of human immunoglobulin. We infer that the appearance of the PL band detected here is due to the formation of morin–Al complex in the holes of AAO with the inner wall involved, and a likely luminescent mechanism is proposed to elucidate the PL enhancement phenomena due to the coexistence of morin and IgG in the AAO pores, which is confirmed by ultraviolet (UV)–visible and Fourier transform infrared (FTIR) measurements. Moreover, it is also found that the PL intensity increases with the pore size.
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.
