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. 2021 Nov 25;11(12):478. doi: 10.3390/bios11120478

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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(a) Structure of OFET device functionalized with pyrene derivative. (b) Self-assembly of star-shaped pyrene derivatives in the presence of Cu²⁺. (c) AFM image of self-assembled star-shaped pyrene derivatives. (d) FET voltage threshold (V_TH) change in the presence of Cu²⁺. (e) Off current change in the presence of Cu²⁺. Reprinted from [268], Copyright 2014, with permission from Elsevier.