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. 2019 Dec 30;9:20286. doi: 10.1038/s41598-019-56105-7

Figure 4.

Figure 4

Sensitivity detection of SLG-protected Cu SPR biosensors. (a) change of spectral position Ψmin(λ) as a function of concentration (n) of HT-2. (b) corresponding change (jump) of phase (δΔ) as a function of n. Dashed lines are sigmoidal fits of λmin and δΔ.