Light-Regulated Release of Entrapped Drugs from Photoresponsive Gold Nanoparticles

Figure 4

(a) Cumulative release profiles of dye from Au-PC-COOH in PBS solution (1 μM, pH ~ 7.4) without UV light, glutathiones (20 mM), UV irradiation for 5 minutes, and UV irradiation for 5 minutes + glutathiones (20 mM). (b) Cumulative release profiles of dye from Au-COOH in PBS solution (1 μM, pH ~ 7.4) without UV light, UV irradiation for 5 minutes (inset: high magnification of cumulative release profiles of dye). (c) Structure of Au-COOH loaded with dye, structure of dye, and release of payload using UV light.

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(b)

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