Figure 6.

DPBF used to check the ROS produced in the FRET process of AlPcS-QDs. (a) Fluorescence intensity decreasing of DPBF (12 μM) in AlPcS-QD (0.1 μM) aqueous solution with the irradiation time of a 532-nm laser (16 mW). Excitation, 405 nm. (b) The comparison of DPBF photo-degradations of AlPcS-QD (0.1 μM), AlPcS (10 μM) and QD (0.1 μM) aqueous solutions under the irradiation at 532 nm. The protection effect of NaN3 (the quencher of 1O2) on DPBF degradation was demonstrated.

Li et al. Nanoscale Research Letters 2012 7:386   doi:10.1186/1556-276X-7-386
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