University of Louisville — Dehydrated Red Blood Cells for Space Transfusion¶
Ambient-temperature blood storage for long-duration spaceflight and battlefield medicine
Investigated: Session 99, 2026-04-07
Institution & Team¶
| Field | Value |
|---|---|
| Lead Org | University of Louisville — Louisville, KY |
| PI | George M. Pantalos, PhD (Professor, Cardiovascular & Thoracic Surgery) |
| Co-I | Jonathan Kopechek, PhD (Assistant Professor, Bioengineering) |
| Key collaborators | Michael Menze, PhD (Biology); Stuart Janis, MD (Surgery); + 5 students |
| Domain | Dehydrated blood preservation for ambient-temperature storage + space transfusion |
Pantalos is a serial FO PI with a 10+ year arc: - 71954 — Aqueous Immersion Surgical System (TRL 4→6, parabolic) - 91363 — Hermetic Surgery System (TRL 4→7, VG SpaceShipTwo May 2021; patent US11540858) - 155246 — Dehydrated RBCs (this project, TRL 5→7 target) - Also Co-I on 106655 — Medical Suction + Surgical Facility (Purdue-led, Collicott PI)
See also: UofL Aqueous Surgery page
FO Project¶
155246 — Dehydrated Red Blood Cells for Transfusion Therapy in Spaceflight¶
- Status: Active (Feb 2023 – Jun 2026)
- TRL: 5 → 7 (target)
- TX: TX06.3.1 Medical Diagnosis and Prognosis
- Destinations: Earth, Mars, Moon and Cislunar, Foundational Knowledge
- Views: 2,303
Technology: Red blood cells are dehydrated pre-flight using methods developed by Kopechek's lab, enabling storage for years at ambient temperature without refrigeration. When needed, RBCs are rehydrated with sterile water and assessed for oxygen-carrying capacity. This eliminates the cold chain requirement that makes blood transfusion impossible on long-duration missions.
The problem: Radiation-induced anemia is a hazard to astronauts on deep-space missions. Standard RBC storage requires refrigeration (2-6°C) and has a 42-day shelf life. Mars transit (6-9 months) + surface stay makes conventional blood banking impossible. Dehydrated RBCs stored at ambient temperature for years would solve both the power/mass constraint and the shelf-life constraint.
Flight heritage: - Nov 2019: ZERO-G parabolic flights (Florida) — first microgravity rehydration test. 50+ weightless cycles across 2 flights. Result: "oxygen-carrying capacity of the blood was comparable to what they found when rehydrating blood at one-earth gravity." (UofL Medicine News) - 2024: NTRS publication 20240004010 — "Preserved Red Blood Cells for Transfusion Therapy in Reduced Gravity" (results from follow-on testing) - 2023-2026: Current FO project [155246] continues testing with different dehydration methods + scale-up to 350 mL transfusion volumes
TechPort Footprint (Pantalos + team)¶
| Project | Program | PI/Role | TRL | Period |
|---|---|---|---|---|
| 71954 | FO | Pantalos (PI) | 4→6 | 2012–2018 |
| 91363 | FO | Pantalos (PI) | 4→7 | 2013–2021 |
| 155246 | FO | Pantalos (PI) | 5→7 target | 2023–2026 |
| 106655 | FO | Collicott (PI), Pantalos (Co-I) | 4→6 | 2021–2024 |
Four FO projects over 14 years. This is one of FO's longest-running research partnerships. Pantalos has been iteratively testing surgical and medical systems in reduced gravity since ~2012.
Funding¶
No USASpending contracts found under Pantalos, Kopechek, or University of Louisville for this specific project. FO projects at universities are typically cooperative agreements.
NSF connection: NSF Public Access Repository lists "Assessment of stored red blood cells through lab-on-a-chip technologies for precision transfusion medicine" — suggesting NIH/NSF co-funding for the underlying blood preservation technology.
Dual-Use Military Application¶
Dehydrated RBCs solve the same problem for battlefield medicine as for spaceflight: - Forward surgical teams in austere environments can't maintain cold chains - Dried blood stored at ambient temperature eliminates logistics burden - Mass-casualty scenarios require blood on demand without refrigeration
No DoD contracts found in USASpending for Pantalos/Kopechek, but the Space Surgery Foundation webinar explicitly discusses military applications. This is a technology that should attract DoD interest (DARPA, DHA, BARDA) — the absence of DoD funding is notable.
Publications¶
- NTRS 20240004010 (2024) — "Preserved Red Blood Cells for Transfusion Therapy in Reduced Gravity"
- NSF PAR — "Assessment of stored red blood cells through lab-on-a-chip technologies for precision transfusion medicine"
- UofL Medicine News (Jan 2020) — "UofL researchers rehydrate dried blood in weightless environment"
- Space Surgery Foundation webinar — "Red Blood Cell Storage in Space and Iterative Suborbital Testing with Dr. George Pantalos"
- Patent US11540858 — Hermetic surgery system (related FO project)
Assessment¶
| Dimension | Rating |
|---|---|
| Technology readiness | Moderate-high — TRL 5, targeting 7 by Jun 2026 |
| Dual-use potential | Very high — battlefield medicine is natural market |
| Funding trajectory | Flat (NASA FO only; no DoD or commercial) |
| Commercial viability | Pre-commercial; no company or license |
| Downstream impact | Too early — project completes Jun 2026 |
| Confidence | Suggestive (ZERO-G results positive, but no clinical pathway yet) |
Outcome category: Active Maturation — Academic Multi-FO Program
Archetype: Long-arc academic PI with iterative FO flight testing. 14 years, 4 FO projects, steady progress from aqueous surgery to blood preservation. Classic "university pushes the frontier" pattern — valuable science but no commercial vehicle.
Time dimension: Pantalos started FO work ~2012. First RBC rehydration test Nov 2019. Current project ends Jun 2026. If TRL 7 is achieved, the next step would be ISS transfusion demonstration — but that requires a clinical protocol and FDA/regulatory pathway that doesn't exist yet for space blood products.
Key insight: Dehydrated RBCs may be FO's most important life-support technology contribution that has zero visible downstream traction. The military application is obvious and massive (DARPA has funded blood preservation research separately), but Pantalos's team hasn't connected to that funding stream. This is a classic "last mile" gap: great science, clear need, no commercial or military bridge.
Open Questions¶
- Will TRL 7 be achieved by Jun 2026? Project is 2 months from completion.
- Has there been any DoD/DARPA/DHA outreach for battlefield transfusion applications?
- What dehydration method is being tested in the current project? (Kopechek's lab has multiple approaches)
- Is ISS transfusion demonstration planned as next step?
- Connection to 106655 — did the Purdue surgical facility project incorporate blood transfusion capability?
Sources: TechPort 155246; NTRS 20240004010; UofL Medicine News (Jan 2020); Space Surgery Foundation; NSF PAR; WHAS11; Lane Report; FO Technologies page