Biology makes use of specialised proteins, the Aquaporins, to facilitate rapid water transport across cell membranes whilst strictly excluding salt, enabling maintenance of homeostasis. Whilst attempts have been made to use these properties in water purification and desalination, issues with stability, scalability, and cost have restricted their impact. Recent attention has focussed on building artificial water channels, typically formed from folded or selfassembled polymers. Herein, we disclose