Fig. 19.
Gold nanotripods as contrast agents for PAT.135 (a) Schematic illustrating the structure of Au nanotripods. (b) TEM image of Au nanotripods. (c) The coronal, sagittal and transverse views of PA and US images of nude mice bearing U87MG tumors were obtained before and 1, 2 and 4 h after iv injection of RGD–Au-tripod (2 mg kg−1 of mouse body weight).