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. 2022 Oct 19;10:955127. doi: 10.3389/fbioe.2022.955127

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Copyright © 2022 Xu, Tan, Chen, Chen, Tang, Liao and Niu.

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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(A) The IR780 release from IR780/PLGA@MnO₂ NPs at pH 7.4 or 5.5 with or without H₂O₂. (B) Oxygen content of IR780/PLGA MnO₂ NPs with H₂O₂. (C) Time-dependent ¹O₂ generation of IR780/PLGA MnO₂ NPs irradiated by US (1 MHz, 1.0 W/cm²). (D) Time-dependent fluorescence increasement of SOSG with different treatments under ultrasound irradiation.