Fig. 4: White light-excited fluorescence of Er-NCs and whole-body angiography of mice.
From: Ultra-wideband-responsive photon conversion through co-sensitization in lanthanide nanocrystals
a Illustration of the experimental setup for NIR-imaging. b NIR-imaging of Er-NCs exposed to single or multiple LEDs (exposure: 2 ms; filter: 1500LP). c Analysis of the gray values in b. d TEM image and NIR-imaging of Er-PP NCs in normal saline solution. e Illustration of whole-body angiography of mice (left) and envisaged WLED-excited diagnosis of human (right). f Whole-body angiography of a mouse using an 808-nm laser as the excitation source, and the analysis on cross-sectional intensity (black line) and Gaussian fit fluorescence intensity profiles (cyan line), FWHM: Full width at half maxima, SNR: Signal-to-noise ratio. g Whole-body angiography of a mouse using a WLED as the excitation source, and the analysis on cross-sectional intensity (black line) and Gaussian fit fluorescence intensity profiles (cyan line).
