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Electrochemical sensing platform based on kelp-derived hierarchical meso-macroporous carbons
Yashuang Hei1, Xiqian Li2, Xiao Zhou3
1Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Key Laboratory of Polyoxometalate Science of Ministry of Education, National & Local United Engineering Laboratory for Power Batteries, Department of Chemistry, Northeast Normal University, Changchun, Jilin Province 130024, PR China.
Analytica Chimica Acta
|January 11, 2018
Summary
Kelp-derived hierarchical carbons offer a sustainable material for electrochemical sensors. These carbons show high performance in detecting hydrogen peroxide (H2O2) in biological samples.
Area of Science:
- Materials Science
- Electrochemistry
- Biomass Conversion
Background:
- Kelp (Laminaria japonica) is an abundant biomass resource.
- Developing sustainable precursors for advanced carbon materials is crucial.
Purpose of the Study:
- To prepare kelp-derived hierarchical meso-macroporous carbons (K-dHMMCs).
- To evaluate K-dHMMCs as an electrochemical sensing platform.
Main Methods:
- Carbonization of kelp under a nitrogen atmosphere at high temperature.
- Fabrication of K-dHMMCs modified glassy carbon (GC) electrodes.
- Electrochemical characterization and sensing of various analytes.
Main Results:
- K-dHMMCs possess high surface area (416.02 m²/g), large pore volume (0.24 cm³/g), and hierarchical porosity.
- The K-dHMMCs/GC electrode demonstrated superior sensitivity and a lower detection limit for H2O2 compared to CNTs/GC and GC electrodes.
- The K-dHMMCs/GC electrode successfully determined H2O2 levels in human urine and monitored H2O2 release from cancer cells.
Conclusions:
- K-dHMMCs are a promising material for electrochemical sensing applications.
- The developed K-dHMMCs/GC electrode shows great potential for detecting biologically relevant molecules.
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