A prototype reversible polymersome-stabilized H2S photoejector operating under pseudophysiological conditions.

Persistent self-assembled polymersome capsules are shown to solubilise and stabilize a new hydrosulfide-containing (), as well as hydroxylated (), malachite green derivatives in their leuco-forms in aqueous buffer solution. Photoirradiation resulted in reversible hydroxide release/hydrogen sulfide generation. Notably, the efficient augmentation of H2S concentration to physiologically-relevant levels is shown.