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. 2025 Jan 2;15:34. doi: 10.1038/s41598-024-83961-9

Fig. 4.

Fig. 4

(a) Specificity tests for GLE-based HER2 immunosensor (AB = antibody, FBG = fibrinogen); Results are presented as mean value with standard deviation (n = 3). (b) Control test: Repeated cell culture medium incubation after surface saturation; Results are presented as mean value with standard deviation (n = 3). (c) Nyquist plots with an equivalent Randles circuit used for fitting the data of HER2 detection in cell culture medium; (d) Relative change of the signal versus medium saturated surface for different concentrations in the cell culture medium. Error bars in the graph present standard deviations of three measurements.