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. 2020 Feb 4;10:3139. doi: 10.3389/fmicb.2019.03139

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Copyright © 2020 Wang, Yang and Wu.

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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Scheme 1 — (A) Aptamer 1 (APT1) and aptamer 2 (APT2) and their specific targets zearalenone (ZEN) and ochratoxin A (OTA). (B) Schematic illustration of ZEN and OTA assay based on a fluorescence aptasensor using graphene oxide (GO) as a quencher.