Fig. 4
From: Ultrasensitive detection of miRNA with an antimonene-based surface plasmon resonance sensor
Simulation of antimonene SPR sensors and the antimonene assembly on the sensor chip. a, b The variation in the sensitivity of the proposed biochemical sensor when the refractive index of the sensing medium is 1.37 + △n with respect to the different number of antimonene layers. To vividly illustrate the relationship of sensitivity with the number Sb layers, we assume that the number of Sb layers (n = 2.1 + 0.45i) can be continuously changed. c AFM images of antimonene on Au film (scale bar = 2 µm). d Images of distilled water droplets on antimonene assembled on Au film
