Plant Engineering: Precision Delivery of Multiscale Payloads to Tissue‐Specific Targets in Plants (Adv. Sci. 13/2020)

In article number 1903551, Benedetto Marelli and co‐workers design a silk‐based biomaterial to fabricate a microneedle‐like device with controlled degradation rate in planta via tuning material composition. The device enables precise access to xylem, phloem, and other plant tissues, thus being capable of serving as a delivery tool to release cargo molecules and as a sampling tool for analysis of plants fluid. [Image: see text]