Gold nanoparticles supported on graphene oxide with flagella as the template were developed as an electrochemical sensor for the detection of hydrogen peroxide (H₂O₂) in serum. The flagella–Au nanoparticles composite and graphene oxide were dropped onto a glassy carbon electrode (GCE) to form a new H₂O₂ electrochemical sensor. The structure morphology of the prepared sensor was characterized by transmission electron microscopy (TEM), and the electrocatalytic performance towards H₂O₂ reduction was evaluated by cyclic voltammetry (CV) and amperometric methods. The response current of the sensor showed a good linear relationship with the concentration of H₂O₂ in the range of 10–1000 μM (R² = 0.9916). The minimum detection limit of 1 μM was obtained (S/N = 3). Finally, the sensor was applied to the detection of H₂O₂ in serum, and the recoveries were satisfactory. As the sensor is sensitive, fast, and easy to make, it is expected to be used for rapid detection of H₂O₂.

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开发了以鞭毛为模板负载在氧化石墨烯上的金纳米颗粒作为电化学传感器，用于检测血清中的过氧化氢（H ₂ O ₂）。将鞭毛-Au纳米颗粒复合材料和氧化石墨烯滴到玻璃碳电极（GCE）上，以形成新的H ₂ O ₂电化学传感器。通过透射电镜（TEM）表征了所制备传感器的结构形态，并通过循环伏安法（CV）和安培法评估了其对H ₂ O ₂还原的电催化性能。传感器的响应电流与H ₂ O的浓度呈良好的线性关系。₂的范围为10–1000μM（R ²  = 0.9916）。获得的最小检出限为1μM（S / N  = 3）。最后，将该传感器用于血清中H ₂ O ₂的检测，回收率令人满意。由于该传感器灵敏，快速且易于制造，因此有望用于H ₂ O _2的快速检测。

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