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. 2024 May 8;22:231. doi: 10.1186/s12951-024-02514-4

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© The Author(s) 2024

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 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. 2 — Characterization of E-CM-MNs. (A) TEM images of MNs and E-CM-MNs. Scale bar, 200 nm. (B) Size distribution and (C) zeta potential of MNs and E-CM-MNs. Data represent as mean ± s.d. (n = 4). (D) SDS-PAGE protein analysis of MNs, E-CM-MNs and E-CM. (E) SEM images of tumor cells incubated with different CM-MNs. Scale bar, 10 μm. (F) Fluorescence images of the interaction between various CM-MNs and different cells. Scale bar, 20 μm. (G) ICP-OES detection of the interaction between various nanoparticles and different cells. Data represent as mean ± s.d. (n = 3). *p < 0.05, **p < 0.01, ***p < 0.001