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. 2021 Oct 11;12:661217. doi: 10.3389/fphar.2021.661217

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Copyright © 2021 Hassan, Elebeedy, Matar, Fahmy Mohamed Elsayed and Abd El Maksoud.

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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Chicken chorioallantoic membrane (CAM) assay. (A) Negative control (non-treated). (B) CAM treated with 10 μg/ml of ZnO nanorods (ZnO-NRs). (C) CAM treated with 20 μg/ml of ZnO nanorods (ZnO-NRs). (D) CAM treated with 10 ng of positive control VEGF. (E) CAM treated with 50 μg/ml of ZnO nanorods (ZnO-NRs). (F) CAM treated with released Zn (II) ions.