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. 2022 Feb 25;12(3):342. doi: 10.3390/life12030342

Figure 7.

Figure 7

Schematic illustration of the QCM biosensor for miRNA detection [104]. The DNA that had formed a double strand was captured by the DNA embedding agent modified on the surface of the chip, and the AuNPs modified at the end of the probe were used to amplify the mass change on the chip surface.