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. 2022 Jul 26;10:926364. doi: 10.3389/fchem.2022.926364

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Copyright © 2022 Santillo, Wang, Buonocore, Gentile, Verdolotti, Kaciulis, Xia and Lavorgna.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Cross-sectional scanning electron microscopic images of the typically selected samples: (A) pristine CS, (B) CS/B, (C) CS/B/025G/025C, and (D) CS/B/1G/1C. GO sheets are highlighted with circles.