ALB and neoplasm: Photodynamic therapy performed with the albumin-based nanospheres containing zinc-phthalocyanine tetrasulfonate (ZnPcS4-AN) (PDT group) showed no significant tumor-volume reduction (Figure 3A) when compared to non-treated tumor (CT group), whereas treatments with doxorubicin (Dox group) and doxorubicin associated with laser exposure (Dox/LS group) caused a significant reduction in tumor-volume.