A German team reports that vitrification plus a tailored thawing protocol preserved and restored aspects of neuronal function in mouse brains, including neuronal firing, cellular metabolism and markers of synaptic plasticity. Results were published in Proceedings of the National Academy of Sciences and represent the most complete recovery of coordinated brain activity reported after cryopreservation. The method avoids ice‑crystal damage by vitrifying tissue into a glass‑like state and then reversing that state with protective measures. Lead author Alexander German framed the work as a step toward protecting brain tissue after injury and exploring organ‑banking possibilities. Experts note the advance is significant for tissue preservation science but stop short of near‑term claims about long‑term organ or whole‑body banking. The authors and commentators caution that scaling to large organs or intact mammals remains a major technical hurdle.