Research Article

New Bismuth Germanate Oxide Nanoparticle Material for Biolabel Applications in Medicine

Figure 5

(a) Photoluminescence spectra of the BGO powder in different fluids: human urine (green), blood serum (red), water (blue), BSA protein (pink), and air (black). (b) Emission spectra of BGO dispersed in distilled water with different pH values: pH 1 (red), pH 5.7 (green), and pH 12 (blue). Emission spectrum in air (without fluid) was included for comparison (black).  nm.
(a)
(b)