Figure 7.
Verification of Antibacterial Mechanism
(A) Photographs of GDY and GDYO dispersions at a concentration of 2.0 mg·mL−1 after standing for 0, 12, and 36 h, respectively.
(B) Turbidity of GDY and GDYO dispersion as a function of aging time.
(C) Transmission intensities versus the height of GDY and GDYO in water at different times.
(D) Photographs of inhibition zone assays of GDY and GDYO against E. coli in the dark and under visible light irradiation.
(E) A proposed mechanism for the antibacterial action of a GDYO suspension under visible light irradiation.