The nematocyst's sting is driven by the tubule moving front

摘要: The nematocyst is the explosive injection system of phylum Cnidaria, and one fastest delivery systems found in Nature. Exploring its mechanism key for understanding predator-prey interactions protection against jellyfish stinging. Here we analyse nematocysts ask how build-up poly-γ-glutamate (pγGlu) osmotic potential inside drives discharge. To control potential, used a two-channel microfluidic to direct elongating tubule through oil, where no can develop, while keeping capsule water at all times. In addition, flow pγGlu concentration profiles were calculated by applying one-dimensional mathematical model. We that elongation oil orders magnitude slower than rate content reduced. These results imply capsule's not sufficient drive beyond initial stage. Our proposed model shows pulled high develops moving front. This new vital future development nematocyst-based such as nanotubes transdermal drug delivery.