State-of-the-Art Preclinical Photoacoustic Imaging in Oncology: Recent Advances in Cancer Theranostics

Figure 7

Multiwavelength in vivo PAI (a) before and (b) after subcutaneous injection of indigoid π-conjugated SPNs, showing their ability to distinguish PA signal generated by the contrast agent and vasculature for potential oncological applications (adapted with permission from Stahl et al. [92], CC BY-NC-ND license, http://creativecommons.org/licenses/by-nc-nd/4.0/).

(a)

(b)