Cover Picture: Emerging strategies of activatable MR imaging probes and their advantages for biomedical applications (View 5/2021)

The use of contrast agents (CAs) can enhance the accuracy and specificity MR imaging to disease diagnosis, but their signals are “always-on” regardless whether they interact with target tissues or cells. In article number 20200141, Bingbo Zhang, Xiao Jin, Weitao Yang co-workers summarize recent progress on design strategies principles activatable CAs, analyze advantages in biomedical applications compared conventional improve target-to-background signal ratio for better diagnosis.