Diagram and application of the portable visual and electrochemical H2O2 sensors. (IMAGE)

Aerospace Information Research Institute, Chinese Academy of Sciences

Diagram and application of the portable visual and electrochemical H2O2 sensors.

Caption

Diagram and application of the portable visual and electrochemical H2O2 sensors.

a–c Schematic illustration and corresponding calibration curve of portable visual H2O2 sensing based on testing paper. d–f Schematic illustration and corresponding calibration curve of portable electrochemical H2O2 sensing. g, h Measurement of H2O2 released from HeLa cells with portable visual and electrochemical sensors. Scale bar = 1.0 cm. i Comparison of H2O2 concentrations measured with the portable colorimetric sensor, the UV‒vis spectrophotometer, the portable electrochemical sensor, and the electrochemical workstation, respectively.

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Microsystems & Nanoengineering

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