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. Author manuscript; available in PMC: 2021 Dec 15.
Published in final edited form as: Biosens Bioelectron. 2019 Jul 10;142:111495. doi: 10.1016/j.bios.2019.111495

Fig. 4.

Fig. 4.

(A) and (B) show the robustness of the Fe-N-C SAN against harsh pH and temperature, respectively; (C) and (D) compares the storage stability of the Fe-N-C SAN and natural HRP.