Gold Nanoparticle Mediated Phototherapy for Cancer

Figure 14

Four scenarios for trigger drug delivery using the photothermal effect. (a) The drug (green capsules) is embedded in a polymeric matrix surrounding the nanoparticle. (b) The drug and the nanoparticle are embedded in liposomes. (c) The drug is covalently bonded to a spacer molecule (yellow diamonds), which is bound to the nanoparticle. (d) The drug is not covalently bound to the AuNPs [49].

(a)

(b)

(c)

(d)