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. Author manuscript; available in PMC: 2019 Jan 2.
Published in final edited form as: Anal Chem. 2017 Nov 7;90(1):19–39. doi: 10.1021/acs.analchem.7b04251

Figure 3.

Figure 3

(a) Schematic of the smart phone-based SPR sensor. (b) Photograph of the SPR sensor installed on an Android-based smart phone. (c) 3D schematic illustration of the internal structure of the opto-mechanical attachment. (d) The camera of the smart phone captures the images of the measurement channel, control channel, and reference channel; then, the images are rapidly processed to obtain the relative intensity. The data points are plotted and displayed on the screen. Reprinted by permission from Macmillan Publishers Ltd.: Scientific Reports, Liu, Y.; Liu, Q.; Chen, S.; Cheng, F.; Wang, H.; Peng, W. Sci Rep. 2015, 5, 12864 (ref 83).