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. 2022 Aug 1;9:35. doi: 10.1186/s40580-022-00326-6

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© The Author(s) 2022

Open AccessThis 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 5 — Mechanical stability property of CNT@CPM-3. a Long-term stability, showing sensor maintained consistent resistance values at 50, 70, and 90 RH% humidity for 30 days. b Stability at each bending angle, showing sensor maintained consistent responsiveness from all angles. c Mechanical durability test of sensor under repeated bending cycles, showing stable resistance values after 15,000 tests. d Detection of several organic vapors; several different polar organic gases can be detected