Yadong Yin, Materials Science and Engineering, University of California, Riverside, Riverside, CA 92521, USA. E-mail: yadong.yin@ucr.edu
Abstract
Cryopreservation technologies have important applications in healthcare, biodiversity, and food sustainability, but post-rewarming viability in preserved biosystems is limited by ice-induced damage and cryoprotective agent toxicity. Vitrification, also known as ‘ice-free’ cryopreservation, suppresses ice formation and offers significant promise, but typically requires rapid heat transfer, high cryoprotective agent concentrations, or both. Recent success using a “cryomesh” approach can cryopreserve both organisms and organoids in a vitrified state through improved heat transfer. This perspective presents a materials-centered framework for designing next-generation cryomesh to further improve cryopreservation efficacy. Building on established mechanisms, cryomesh performance and post-rewarming viability could be further improved through material selection, hierarchical microstructures, and surface engineering. Proposed strategies include thermally conductive materials, wettable coatings, and stimuli-responsive materials for controlled, automated sample recovery. We emphasize the critical importance of device-level validation under relevant conditions rather than evaluation by thermal conductivity or function alone. By integrating heat transfer, interfacial phenomena, and sample handling, this perspective outlines design priorities for scalable, high-throughput cryopreservation.
Keywords
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