Development of Polymeric Cargo for Delivery of Photosensitizer in Photodynamic Therapy

Figure 8

Characteristics of the polymeric carrier-PSs conjugate. Particle-size distribution of polymeric PSs (0.1 mgmL⁻¹) at (a) pH 7.4 (PBS 150 mm) and (b) pH 6.8 (PBS 150 mm) by Zetasizer. Field-emission scanning electron microscopic (FE/SEM) images of polymeric PSs at pH 7.4 (c) and pH 6.8 (d). (e) Zeta-potential change for polymeric PSs (0.1 mgmL⁻¹, pH 7.4–6.0, PBS 150 mM) at different pH values [16].

(a)

(b)

(c)

(d)

(e)