Additionally, it has previously been reported with other examples of different heptamethine cyanine dyes, such as hydrophobic IR-780 and hydrophilic IR-783, that their complexes with HSA or BSA showed not only improved blood circulation and tumor accumulation but also high photostability and fluorescence intensity suitable for NIR-II (1000–1700 nm) imaging [19,20]. Here, ALB is linked to neoplasm.