Correct levels of hydrogen peroxide in human body are of utmost importance to a variety of physiological functions. Its determination provides valuable information about specific changes that may affect our health. Here we report on PEDOT:PSS electrodes, screen printed on flexible substrates, for the amperometric detection of hydrogen peroxide at -1 V vs Ag/Ag⁺. PEDOT:PSS-based inks were prepared with different PEDOT-to-PSS ratios and various additives to improve viscosity, adhesion and electrical properties of the printed films. PEDOT:PSS electrodes could detect hydrogen peroxide in the range 1-100 µM with limits of detection ca. 0.97 µM, limits of quantification ca. 1.07 µM and high sensitivities up to 1.7 A·M^-1·cm^-2 for the best performance electrode. This work represents a relevant contribution towards non-enzymatic detection of hydrogen peroxide with an electrode fabricated using a low-cost printing process.

人体内过氧化氢的正确水平对多种生理功能至关重要。它的测定提供了有关可能影响我们健康的特定变化的宝贵信息。^{在这里，我们报告了 PEDOT:PSS 电极，丝网印刷在柔性基板上，用于在 -1 V vs Ag/Ag +}下进行过氧化氢的安培检测。PEDOT:PSS 基油墨采用不同的 PEDOT/PSS 比例和各种添加剂制备，以提高印刷薄膜的粘度、附着力和电性能。PEDOT:PSS 电极可以检测 1-100 µM 范围内的过氧化氢，检测限约为 0.97 µM，量化限制约。1.07 µM 和高达 1.7 A·M ^-1 ·cm ^{-2的高灵敏度}以获得最佳性能的电极。这项工作代表了对使用低成本印刷工艺制造的电极非酶法检测过氧化氢的相关贡献。