Size-Dependent Photodynamic Activity of Gold Nanoparticles Conjugate of Water Soluble Purpurin-18-N-Methyl-D-Glucamine

Table 2

Summary of TEM images of the PS-GNPs conjugates 2a–2e.

Compound	Shape	Diameter (nm)	Dispersion
2a	Sphere, peanut	∼60	GNPs are well dispersed and showed no aggregation.
2b	Sphere, chain-like appearance with branching	5–11	GNPs are well dispersed and showed no aggregation.
2c	Sphere	5–11	Some aggregated GNPs have diameter sizes of 27–44 nm.
2d	Not sphere	—	GNPs have a lot of aggregation.
2e	Not sphere	—	Very few aggregated GNPs have sizes of 50–70 nm.