# Aldehyde-Based Cryopreservation **Entity class:** Brain-preservation method **Collections:** [[collections/Neurotech|Neurotech]] · [[collections/Consciousness Continuity|Consciousness Continuity]] ## Definition **Aldehyde-Based Cryopreservation** is whole-organ preservation using aldehyde fixation combined with cryoprotectant equilibration and low-temperature storage. ## Relationships - **Technical relationship:** It relates to [[wiki/Aldehyde-Stabilized Cryopreservation|Aldehyde-Stabilized Cryopreservation]], [[wiki/Substrate Capture|Substrate Capture]], and [[wiki/Memory Substrate|Memory Substrate]] while keeping ultrastructural preservation distinct from demonstrated recoverability. - **Source relationship:** This entry is routed from [[articles/Technologies for Consciousness Mapping and Transfer|Technologies for Consciousness Mapping and Transfer]] and the [[research/Consciousness Mapping and Transfer Ecosystem Relationship Graph - 2026-09-10|Consciousness Mapping and Transfer Ecosystem Relationship Graph — 2026-09-10]]. - **Collection relationship:** The entry belongs to [[collections/Neurotech|Neurotech]] and the person-scale persistence questions maintained by [[collections/Consciousness Continuity|Consciousness Continuity]]. ## Epistemic boundary Inclusion in the continuity stack records a documented component, method, model, or analytic distinction; it does not by itself establish whole-person transfer, subjective continuity, or numerical identity.