Fig. 3. Temperature changes of CaO2/B1 lipo (a) and CaO2/B1/NH4HCO3 lipo (b) at a B1 concentration of 20, 30 and 40 μM under different irradiation times; (c) oxygen generation of CaO2/B1 lipo, CaO2/B1/NH4HCO3 lipo and CaO2/NH4HCO3 lipo (184 μg mL–1) without and with irradiation; absorption spectra of a mixture containing DPBF and CaO2/B1 lipo (d), CaO2/B1/NH4HCO3 lipo (e) (184 μg mL–1) at different irradiation times in the hypoxia environment. (f) ΔA of DPBF at 427 nm which is obtained from figures (d) and (e). ΔA = At – A0, where At is the absorbance of DPBF at 427 nm at different illumination times and A0 is the absorption without irradiation. The excitation wavelength of irradiation is 730 nm. The power density is 500 mW cm–2.
