Fig. 6: Confocal test images.

a 2D reflectance imaging results of various metal patterns. (b–e) Cellular fluorescence imaging results. ICG was fed to various cell lines for one hour. (b) Colon carcinoma (CT 26). (c) Human lung cancer (A549 cells). (d) LNcaP prostate. (e) Human oral cancer (KB Oral). Laser power = 2 mW