Our manuscript entitled "A Small-Molecular Ratiometric Photoacoustic Probe for the High-Spatiotemporal-Resolution Imaging of Copper(II) Dynamics in the Mouse Brain" has finally been accepted by Angewandte Chemie International Edition! Congratulations to Zhiyong and his collaborators! You can access the accepted version of this paper via the link of https://onlinelibrary.wiley.com/doi/10.1002/anie.202318340!