Figure 3. Localized photohyperthermic effect.

Photothermal destruction of U87-MG cells with or without PPyHMs and NIR laser (808 nm, 6 W cm⁻²) treatments (a, b, c, d, e and f). White circle indicates the laser spot; live/dead stain for viability shows dead cells as red while viable cells as green; (g) Cell viability of HUVECs with 24 h exposure to various concentrations of PPyHMs; (f) U87-MG cell viability after treatment with different concentrations of PPyHMs and NIR laser for different irradiation time.