Herein, a smart competitive-type photoelectrochemical (PEC) sensor based on an antigen-down (Ag-down) format for procalcitonin (PCT) detection is proposed. A fullerene sensitized flower-like Sn₃O₄ nano-structure is used as the photoactive platform, and FeS₂ is labeled on the secondary antibody as a signal adjusting element. The sensor exhibits excellent sensitivity and great stability.

中文翻译：

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富勒烯官能化Sn3O4支持抗原向下形式的光电化学分析。

在此，提出了一种基于降抗原（Ag-down）形式的降钙素原（PCT）检测的智能竞争型光电化学（PEC）传感器。富勒烯敏化的花状Sn ₃ O ₄纳米结构用作光敏平台，FeS ₂在二抗上标记为信号调节元件。该传感器具有出色的灵敏度和出色的稳定性。