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- W2979978014 abstract "Electrocheluminescence (ECL) immunoassay amplified by coreaction accelerators has experienced major breakthroughs in ultrasensitive detection of biomarkers. Herein, CeO2/SnS2 heterostructures were synthesized and applied as a novel coreaction accelerator to enhance the ECL efficiency of the luminol-dissolved O2 system for the first time. Benefiting from the well-matched lattice spacing, ultrafine CeO2 nanoparticles (NPs) were grown in situ on layered SnS2 nanosheets (NSs) with improved dispersion. CeO2/SnS2 as an electroactive substrate can remarkably accelerate the generation of abundant superoxide anion radicals (O2•-) to react with luminol anion radical (L•-), achieving about 2-fold stronger ECL intensity than that of pure CeO2 NPs. To avoid harsh chemical synthesis of conventional ECL labels and simplify the antibody conjugation process, ferritin (Ft) was served as a natural nanocarrier to immobilize luminol molecules (Lum@Ft) via a one-step linkage, whose protein nanocage can easily connect with the detection antibody. Moreover, a robust site-oriented immobilization strategy using HWRGWVC heptapeptide as specific capturer was further adopted to maintain the bioactivity of the capture antibody on the amine-functionalized CeO2/SnS2 surface, which promoted the incubation efficiency markedly. On account of this advanced sensing strategy, a brand new biosensor was constructed for the accurate detection of heart failure biomarkers, which performed with favorable linearity in the range of 0.0001-50 ng/mL and achieved the detection limit of 36 fg/mL." @default.
- W2979978014 created "2019-10-18" @default.
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- W2979978014 date "2019-10-09" @default.
- W2979978014 modified "2023-10-16" @default.
- W2979978014 title "Synthesis and Application of CeO<sub>2</sub>/SnS<sub>2</sub> Heterostructures as a Highly Efficient Coreaction Accelerator in the Luminol–Dissolved O<sub>2</sub> System for Ultrasensitive Biomarkers Immunoassay" @default.
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- W2979978014 doi "https://doi.org/10.1021/acs.analchem.9b03796" @default.
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