Fig. 11.

Examples of PLL-based nanomaterials for various in vivo bio-imaging applications. (A) Synthesis of star-shaped PEI-PLL-DTPA-Gd³⁺ for T₁-weighted MR imaging. Reproduced with permission from Ref. [286], copyright 2018, The Royal Society of Chemistry. (B) The synthesis of NaGdF₄@PLL nanodots for T₁-weighted and CEST MR imaging. Reproduced with permission from Ref. [295], copyright 2016, American Chemical Society. (C) Prussian blue-PLL nanocomplexes for photoacoustic stem cell imaging. Reproduced with permission from Ref. [296], copyright 2017, American Chemical Society. (D) Fabrication of PFBT/PLL-g-PEG/DMA/AuNP and its tumor-acidity-activated fluorescence activation. Reproduced with permission from Ref. [299], copyright 2014, Wiley. (E) Transmission electron microscopic structure of AuNP-PLL-RITC complexes and their in vivo micro-CT images. Reproduced with permission from Ref. [303], copyright 2017, Wiley.