کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5399145 1392674 2016 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Towards the rare earth functionalization of nano-clays with luminescent reporters for biophotonics
ترجمه فارسی عنوان
به سوی عملکرد نادر خاک نانوساختار با خبرنگاران لومینسانس برای بیوفوتونیک
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی
Completely water dispersible nanoclays can be equipped with optical functions for eventual uses in biophotonics. For this purpose, 3-mercaptopropylmethyldimethoxysilane is grafted as a linker to the rims of strongly anisotropic clay disks for the subsequent covalent attachement of a rare earth β-diketonate, co-coordinated with epoxy-functional phenanthroline (“Eu(ttfa)3epoxiphen”). Silane grafting yields of approximately 80% with respect to available rim-SiOH groups can be obtained as demonstrated by reliable determination of the grafted mercapto-groups with 5,5′-dithiol-bis-(2nitrobenzoic acid) (“Ellman's reagent”). The final linkage of Eu(ttfa)3epoxiphen to the rim mercapto-groups competes with mere polar adsorption on the laponite faces; however, the rim linkage can be confirmed via the complex's excitation and emission spectra and X-ray diffraction of the solids obtained, and corresponding absorption spectra.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 169, Part B, January 2016, Pages 581-586
نویسندگان
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