“…These include an appropriate robustness despite biodegradability, and sustainable production routes in cell cultures and, to an increasing extent, plant‐based expression systems (Bally et al, ; Buyel, ; Gleba, Klimyuk, & Marillonnet, ; Lomonossoff & D'Aoust, ; Marillonnet, Thoeringer, Kandzia, Klimyuk, & Gleba, ; Marsian & Lomonossoff, ; Rybicki, ; Sack, Hofbauer, Fischer, & Stoger, ; J. Xu, Towler, & Weathers, ). Of primary importance are their repetitive interior and exterior protein surfaces with selectively addressable coupling sites shown to stabilize biomolecules in a striking manner (Poghossian et al, ). Most significant for this review, however, is an amenability of particular plant viral components to self‐assemble into a large variety of unnatural, but useful and technically not accessible nanoarchitectures.…”