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. Author manuscript; available in PMC: 2021 May 7.
Published in final edited form as: Nanoscale. 2020 Feb 24;12(17):9306–9326. doi: 10.1039/c9nr10963c

Figure. 5.

Figure. 5

Non-destructive, live-cell monitoring technique by H2O2 monitoring using MnO2 nanosheets on a glass carbon electrode (GCE). (a) Schematic illustration of H2O2 detection from SP2/0 cells. (b-d) Characterization of MnO2 nanosheets. (e) Amperometric i-t curves of the response of GCE with MnO2 nanosheets (curve a) and without MnO2 nanosheets (curve d) for the reduction of H2O2 released from SP2/0 cells. Amperometric i-t curves of the response of GCE with MnO2 nanosheets (curve b) and without MnO2 nanosheets (curve e) in the absence of SP2/0 cells. Amperometric i-t curves of the response of GCE with MnO2 nanosheets (curve c) in the presence of SP2/0 cells and catalase. Reprinted with permission from ref. 91.