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. 2015 Jan 30;15(2):3138–3153. doi: 10.3390/s150203138

Figure 1.

Figure 1.

Miniaturized system to be implemented for illumination of gastrointestinal (GI) tissues and detection of diffuse reflectance and fluorescence signals in specific spectral bands, selected by the optical filters (not scaled, adapted [10,11]). Ultraviolet (UV) and white-light sources are required for fluorescence and diffuse reflectance measurements respectively.