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. 2021 May 28;9:688442. doi: 10.3389/fchem.2021.688442

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Copyright © 2021 Yin, Qian, Wang, Wan and Zhou.

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 process of detecting AFP and the direction of the pressure valve at each step. (B) Different NMR signals in the dispersed state and the aggregated state.