We welcome you to browse this Special Issue in APL Materials entitled, “From Molluscs to Materials.” Molluscs, like squid, octopus, and cuttlefish, have fascinated scientists, engineers, and the general public for the past century. Indeed, the squid giant axon is the largest known nerve cell and enabled the first direct recording of a nerve action potential, the squid beak is the hardest reported fully organic substance, and the skin architecture of some loliginids allows them to become effectively invisible. In general, these animals have evolved a number of remarkable adaptations for communication and protection, and as such, they have emerged as exciting model systems for the design and development of novel materials and devices.
In this special issue, we have brought together experts from different disciplines to highlight the latest advances with regard to materials inspired by molluscs. These advances encompass bioelectronic systems, structural composites, photonic nanostructures, underwater adhesives, and biomimetic sensors. Some of the advances are particularly salient given the increasing demand for naturally derived and sustainable materials with properties approaching or exceeding those of artificial analogues. We believe that the diversity of the presented work provides an excellent snapshot of the vibrancy of the field. We hope that the issue will prove useful for novices and experts alike, thereby stimulating additional dialogue and research on mollusc-inspired materials.