Activatable Probes: Bio‐Erasable Intermolecular Donor–Acceptor Interaction of Organic Semiconducting Nanoprobes for Activatable NIR‐II Fluorescence Imaging (Adv. Funct. Mater. 10/2019).

Activatable second near‐infrared window fluorescence (NIR‐II, 1000–1700 nm) probes that emit fluorescence via biomarker stimuli have emerged as promising tools to image diseases with an unprecedented tissue depth, spatial resolution, and low background noise. In article number 1807376, Quli Fan and co‐workers use a bio‐erasable intermolecular donor‐acceptor interaction‐based strategy to construct stimuli‐activatable NIR‐II fluorescence probes. [ABSTRACT FROM AUTHOR]