The Abyssal Interface: Solid-State Metabolic Rebreathing and Zwitterionic Osmotic Armor for Autonomous Deep-Water Exploration

A cross‑domain engineering framework integrating a solid‑state Potassium Superoxide (KO₂) metabolic loop with a zwitterionic anti‑polyelectrolyte hydrogel matrix to enable lightweight, depth‑responsive underwater life‑support systems. The architecture replaces mechanical air‑handling hardware with a passive chemical rebreathing cycle that autonomously generates O₂ and scrubs CO₂ in proportion to the user’s exertion. Simultaneously, a salt‑activated zwitterionic osmotic armor layer converts ambient seawater salinity and hydrostatic pressure into internal hydraulic counter‑pressure, reinforcing structural integrity at depth. This document establishes public‑domain Prior Art for a unified, solid‑state metabolic and osmotic interface designed for autonomous deep‑water exploration.