This work reports the use of electrospun conductive gold covered polycaprolactone fibers for the quantification of dissolved O₂. The morphologies of the electrospun fibers obtained at a static and a dynamic drum collector were investigated by scanning electron microscopy. The reduction process of O₂ at negative potentials is analyzed by cyclic voltammetry and electrochemical impedance spectroscopy (EIS) in sodium phosphate buffer (NaPB) pH 7.0 and in cellular media pH 7.4. The electrochemical sensing performance of Au/PCL towards O₂ quantification in NaPB and cellular media is compared by using three electrochemical techniques: cyclic and linear sweep voltammetry and EIS. Measurements are done in a two electrode configuration, using a silver wire as reference, to show the applicability of the method for O₂ quantification in cellular culture media.

这项工作报道了使用电纺导电金包被的聚己内酯纤维定量溶解的O ₂。通过扫描电子显微镜研究在静态和动态鼓收集器处获得的电纺纤维的形态。通过循环伏安法和电化学阻抗谱（EIS）在pH 7.0的磷酸钠缓冲液（NaPB）和pH 7.4的细胞培养基中分析O ₂在负电位下的还原过程。Au / PCL对O ₂的电化学传感性能使用三种电化学技术比较NaPB和细胞培养基中的定量：循环和线性扫描伏安法和EIS。使用银线作为参考，在两个电极的配置中进行测量，以显示该方法在细胞培养基中进行O ₂定量的适用性。