Figure 3
From: Breast cancer biomarker detection through the photoluminescence of epitaxial monolayer MoS2 flakes
PL spectra for two flakes processed and tested with (a) miRNA21c and (b) miRNA21nc. Several spectra were acquired in different spots of the flake for the three steps (as-grown, ss-DNAp-SH functionalization, and target test). The insets are the optical images of the flakes used in the study (magnification ×100).
