Fig. 4: Different sensitization strategies to improve the luminescent brightness of RENPs for fluorescence imaging in the brain.
a Schematic diagram of constructing dye-sensitized RENPs (left). Fluorescence imaging of brain vasculature after injection of RENPs@Alk-pi under 808 nm excitation (right). Reprinted with permission from ref. 62. Copyright 2021 American Chemical Society. b QDs-sensitized RENPs for high-contrast of dynamic cerebrovascular changes in traumatic brain injury. Reprinted with permission from ref. 64. Copyright 2021 American Chemical Society. c Bacteriochlorin-sensitized RENPs for intravital microscopic imaging of the cerebral vessels. Reprinted with permission from ref. 65. Copyright 2021 Nature Publishing Group
