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. 2021 Sep 29;7:75. doi: 10.1038/s41378-021-00302-w

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 3 — a Cyclic voltammograms of the biosensing device in PBS containing 5 mM glucose. Scanning rates: 30, 50, 70, and 100 mV/s. b Selectivity of the biosensing device to different interfering substances. c Measurement repeatability of the biosensing device. Glucose concentration: 5 mM in PBS. d Temperature stability of the biosensing device from 20 to 45 °C. Glucose concentration: 5 mM in PBS. e The pH stability of the biosensing device from pH 6 to 9. Glucose concentration: 5 mM in PBS. f The storage stability of the biosensing device over 7 days of storage. Glucose concentration: 5 mM in PBS (The sensor was measured three times under each condition, as shown in d–f)