Figure 1: Synthesis of the TGNs.

(a) Schematic representation of GNRs coated with porphyrin and trastuzumab. GNRs were firstly modified by porphyrin and then conjugated with trastuzumab. (b) TEM images of the GNRs, GNRs-porphyrin, and TGNs. TGNs show relatively irregular with wrapped layer on the surface and have a stronger intensity than GNRs and GNRs-porphyrin.