Table 1 Summary of rewarming methods*
From: Rapid joule heating improves vitrification based cryopreservation
Warming method | Mechanism | SAR reported (W/m3) | Heating volume/area | Biomaterials tested & thickness | Warming rate (°C/min) | Ref. |
|---|---|---|---|---|---|---|
RF nanowarming | RF heating of IONP | 2.5 × 106 | 1–80 mL | Porcine arteries (~0.7 mm) Porcine heart valve (~1.4 mm) | >300 | |
Metal form | RF heating of Al foil | 3.5−6.5 × 108 | 1.3 cm × 2.8 cm | Porcine arteries (1-2 mm) | 1.3−2 × 103 | |
Focused IR light | IR absorption of water | NA | 200 µL | Adherent cells (~4 µm) | 2 − 30 × 103 | |
Laser nanowarming | Laser plasmonic heating | 4.4 × 1011 | <10 µL droplet | Coral larvae (~100 µm) Cells in suspension (~15 µm) | 7 × 104–1.2 × 107 | |
Joule heating | Electrical current heating | 3–600 × 1011 | 15 cm × 1 cm | Adherent cells (~4 µm) Drosophila embryo (~50 µm) Kidney slices (~1.2 mm) | 5 × 104–6.8 × 108 | This work |