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. 2021 Mar 11;11:5763. doi: 10.1038/s41598-021-85050-7

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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 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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Number of cells attached to bioactive glass monoliths with different nanopore size and HA/CHA microstructure. Cell nuclei of MC3T3-E1 cells attached after 2 h to monoliths were stained with DAPI and imaged by fluorescence microscopy. (a) Representative black and white images of nuclei of attached cells on long-needle (LN), plate-like (PL), flower-like (FW), and short-needle (SN) HA/CHA-covered monoliths are shown (scale bar = 100 µm). (b) Density of cells attached onto the HA/CHA layer quantitatively determined by counting the number of cell nuclei per mm² on multiple representative images/monolith type in three independent experiments. Significant differences in cell numbers are marked with *.