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Tin derived antimony/nitrogen-doped porous carbon (Sb/NPC) composite for electrochemical sensing of albumin from hepatocellular carcinoma patients. | LitMetric

AI Article Synopsis

  • An electrochemical sensor using antimony/nitrogen-doped porous carbon (Sb/NPC) has been created to detect albumin levels in patients with hepatocellular carcinoma (HCC).
  • The sensor shows effectiveness at a physiological pH of 7.4, with a low detection limit, high recovery rates, and consistent stability for 14 hours, indicating good reliability.
  • Clinical application of the sensor on human serum samples reveals a negative correlation between albumin and alpha-fetoprotein levels in HCC patients, suggesting its potential diagnostic value.

Article Abstract

An electrochemical sensor based on an antimony/nitrogen-doped porous carbon (Sb/NPC) composite has been developed for the quantitative detection of albumin from hepatocellular carcinoma (HCC) patients. Sb/NPC is hydrothermally synthesized from Sn/NPC precursors. The synthesized precursor (Sn/NPC) and the product (Sb/NPC) are characterized by XRD, FTIR, TGA, UV/Vis, SEM, and AFM. Cyclic voltammetry, chronoamperometry, and electrochemical impedance studies are used to investigate the electrochemical performance of Sb/NPC-GCE. Sb/NPC-GCE detects albumin at physiological pH of 7.4 in the potential range 0.92 V and 0.09 V for oxidation and reduction, respectively. LOD and recovery of Sb/NPC-GCE for the determination of albumin are 0.13 ng.mL and 66.6 ± 0.97-100 ± 2.73%, respectively. Chronoamperometry of the modified working electrode demonstrates its stability for 14 h, indicating its reusability and reproducibility. Sb/NPC-GCE is a selective sensor for albumin detection in the presence of interfering species. The electrode has been applied for albumin detection in human serum samples of HCC patients. A negative correlation of albumin with alpha-fetoprotein levels in HCC patients is observed by statistical analysis.

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Source
http://dx.doi.org/10.1007/s00604-021-05005-7DOI Listing

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