Hydrochar carbon derived from pistachio shell for simultaneous electrochemical sensing of glucose and lactate in sweat
Journal
Journal of the Taiwan Institute of Chemical Engineers
Journal Volume
170
Start Page
106008
ISSN
1876-1070
Date Issued
2025-05
Author(s)
Abstract
Background: Glucose and lactate are critical biomarkers of human health. Monitoring their concentrations in sweat is essential for diagnosing of various diseases. Due to the low concentration of biomarkers in sweat, developing highly sensitive and selective sensing material is crucial for accurate detection. Methods: Hydrochar carbon (HC) was prepared through hydrothermal carbonization using pistachio shells. Due to the carbonyl and carboxyl functional groups on the surface of HC, the HC-modified screen-printed carbon electrode (HC/SPCE) is anticipated to significantly enhance the properties associated with electrochemical sensing. Significant findings: A biomass-derived HC is for the simultaneous electrochemical detection of glucose and lactate. The HC/SPCE exhibited excellent selectivity, reproducibility, stability, and low LOD for the detection of glucose 0.28 µM and lactate 0.37 µM were established through differential pulse voltammetry (DPV) analysis. Furthermore, HC/SPCE exhibited remarkably in real sweat sample analysis with high recovery of 99.8 %, positioning it as a highly promising sensor candidate for portable and cost-effective on-site detection of crucial sweat biomarkers.
Subjects
Electrochemical sensing
Glucose
Hydrochar carbon
Lactate
Sweat analysis
Publisher
Elsevier BV
Type
journal article