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. 2023 Feb 17;13(4):766. doi: 10.3390/diagnostics13040766

Figure 4.

Figure 4

(A) Schematic representing the design and working principle of the MOF based biosensor. Re-used with permission from Ref. [39] (B) Overall mechanism of DNA G-quadruplex/hemin enzyme. Re-used with permission from Ref. [42] (Copyright, 2021 Elsevier, reproduced with permission from Elsevier Ltd.). (C) Schematic represents the detection of GSTP1 hypermethylation by electrochemical and electrophoretic methods. Re-used with permission from Ref. [45]. (Copyright, 2012 Elsevier, reproduced with permission from Elsevier Ltd.) and (D) Schematic representation of the E-cfDNA sensor Re-used with permission from Ref. [46].