Abstract Herein, we report a low cost and highly selective electrochemical sensor for the detection of glutathione (GSH) using sulfonated carbon microspheres and nanosheets (SCMN) modified glassy carbon electrode (GCE) with an ultra-low limit of detection of 24.91 pM along with excellent stability and reproducibility. The sensor is successful in the detection of GSH in biological fluids such as blood serum samples with excellent recovery percentages from ~92.97 to ~101.58%. Thus, SCMN/GCE makes a promising platform for developing low-cost, biocompatible electrodes for biosensing applications.

中文翻译：

---

生物质衍生磺化碳微球和纳米片的简便合成用于生物样品中谷胱甘肽的电化学检测

摘要在此，我们报告了一种低成本、高选择性的电化学传感器，用于使用磺化碳微球和纳米片 (SCMN) 修饰的玻碳电极 (GCE) 检测谷胱甘肽 (GSH)，其超低检测限为 24.91 pM 以及优异的稳定性和重现性。该传感器成功地检测了血清样品等生物体液中的 GSH，回收率从 ~92.97% 到 ~101.58%。因此，SCMN/GCE 为开发用于生物传感应用的低成本、生物相容性电极提供了一个有前途的平台。