Ice-free glass transition in whole mammalian organ models at 1.9 °C·min⁻¹
Rabbit kidney cohort (n=64). Post-rewarming perfusion recovered in 61 of 64 units with no detectable crystal fronts on cryo-SEM.
doi:10.4021/csk.2025.0114
Vapor-phase LN₂ · −196 °C
Cryosek Laboratories · Metabolic Stasis Division
You'll wake up
in a cryosec.
Between the last second before the hold and the first second after it, the nervous system records one unit of elapsed experience. One cryosec. A century of objective time. A second of yours.
- Vitrification vol.
- −196 °C
- Ice nucleation
- 0.4 %
- Subjective transit
- 1.000 cs
01 Terminology
cryo·sec
/ˈkrʌɪ.əʊˌsɛk/ · noun · symbol cs
- 1. metrology The unit of subjective elapsed time across a stasis interval. By definition, 1 cs ≡ 1 s of perceived duration, irrespective of the objective span of the hold.
- 2. clinical The interval a patient reports between induction and reanimation. Universally reported as instantaneous; never yet measured above 1.000 cs.
- 3. colloquial “Give me a cryosec.” — an indeterminate objective wait costing the waiting party nothing at all.
Origin: coined at Cryosek Labs, 2019, from cryo- (κρύος, frost) + sec (secundum). Adopted in internal protocol CSK-114 as the standard unit of patient-frame duration.
Amorphous phase · no crystal front
02 The Science
Not freezing.
Vitrification.
Ice is the enemy — not cold. Crystal formation shears membranes and severs the connectome. Cryosek's protocol removes the water phase transition entirely: tissue is carried into an amorphous glass state in which molecular motion halts without a single crystal front forming.
At −196 °C, chemical reaction rates fall below one event per structure per 1017 years. Structure is not preserved well. It is preserved completely, because nothing is happening at all.
- Stabilization Circulation is maintained mechanically while core temperature is drawn to 4 °C over 22 minutes.
- Cryoprotectant perfusion CSK-114 agent replaces intracellular water on a stepped gradient, monitored by real-time refractive index at eight vascular beds.
- Glass transition Descent through Tg (−124 °C) at 1.9 °C/min. Below this line, the patient-frame clock stops. The cryosec has begun.
- Isothermal hold Long-term storage in vapor-phase nitrogen, ±0.3 °C, with triple-redundant fill and 14-day passive thermal reserve.
- Controlled rewarming Nanoparticle-assisted uniform reheating avoids devitrification fracture. The cryosec ends. From the inside, no time passed.
Manifold A3 · triple-redundant fill
03 Facility
Nothing in this building is
allowed to depend on power.
Our Sector B vault holds patient-frame integrity on passive physics: liquid nitrogen boils, vapor rises, temperature holds. Pumps, grids and staff are conveniences. The hold survives all three going away.
- Vault uptime since 2019
- 100.000%
- Passive thermal reserve
- 14days
- Independent LN₂ supply lines
- 3×
- Thermal excursions >1 °C
- 0events
04 Research
Published, deposited, reproducible.
Cryosek publishes negative results. Every protocol below is deposited with full perfusion telemetry so that any lab can attempt replication — and several have.
Connectome retention under CSK-114 cryoprotectant loading
Electron-microscopy scoring of synaptic ultrastructure before and after a 400-day hold. Retention 98.2% (95% CI 97.1–99.0).
doi:10.1080/jltm.2024.8871
Toward measurement of the patient-frame interval (the cryosec)
Framework for instrumenting subjective duration across stasis. Predicts an invariant 1.000 cs; proposes the falsification criteria that would break it.
arXiv:2602.11409
Devitrification fracture at rewarming rates below 40 °C·min⁻¹
Published in full. Slow rewarming failed in 100% of large-volume trials. This finding set the current nanoparticle-assisted rewarming standard.
doi:10.4021/csk.2023.0402
05 Enrollment
Phase 0 is open.
We are screening candidates.
Cryosek is accepting a limited observational cohort. Phase 0 involves no induction — it is a full physiological workup, cryoprotectant tolerance panel, and standby registration, conducted under independent IRB oversight.
- Eligible — adults 18+, documented consent, no active systemic infection
- Included — full workup, tolerance panel, standby registration, annual review
- Cohort size — 240 candidates; 189 screened to date
- Oversight — Western IRB #CSK-0114 · protocol amended 2026