Materials, Volume 13, Issue 23 (December-1 2020) – 281 articles
Cover Story (view full-size image): Organic-inorganic hybrids based on lanthanides as optical centers have been used as bio-probes in biological assays. In this sense, a highly luminescent hierarchical hybrid is presented based on dense silica nanospheres whose surface was sequentially decorated with carboxylate→Eu3+→β-diketonate forming a red-emitter complex. The as-fabricated hybrid displays intense luminescence arising from Eu3+ 5D0→7FJ electronic transitions, with an intrinsic emission quantum yield of 38%, even in an aqueous suspension. Finally, the biomarker characteristic was proven via fluorescence microscopy imaging using CHO-k1 cells. View this paper
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