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. 2022 Mar 5;20:113. doi: 10.1186/s12951-022-01288-x

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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/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 3 — a The ABTS⁺ scavenging ratio of MoSe₂-PVP NPs. b The UV–Vis absorption spectra of ABTS⁺ solution after treated with different concentrations of MoSe₂-PVP NPs. c The scavenging ratio of MoSe₂-PVP NPs, and d the photographs of before and after reaction. e The UV–Vis absorption spectra of MoSe₂-PVP NPs for TMB coloration under the presence of H₂O₂, and f the kinetic change at 650 nm of MoSe₂-PVP NPs for TMB coloration under the presence of H₂O₂