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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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DNAzyme/SWCNTs/FET device proposed by Wang et al. (a-i) There are five FET devices on a chip. The size of each channel width was 10µm (a-ii) SEM image of SWCNTs FET. (b) The linearity response of the Agzyme/SWCNTs/FET with increasing Ag⁺ concentration. Reproduced with permission from [120]. Copyright 2018 MDPI. (c) The linearity response of the Pbzyme/SWCNTs/FET with increasing Pb²⁺ concentration. Reprinted with permission from reference [121]. Copyright 2019 John Wiley and Sons. (d) Selectivity performance of Agzyme/SWCNTs/FET in interference ions solutions. Reproduced with permission from [120]. Copyright 2018 MDPI. (e) Selectivity performance of Pbzyme/SWCNTs/FET in interference ions solutions. Reprinted with permission from reference [121]. Copyright 2019 John Wiley and Sons. (f) DNAzyme cleaves its substrate strand at RNA site in the presence of HMIs. Reproduced with permission from [120]. Copyright 2018 MDPI.