Fig. 6.

Cryopreservation of cells using IRI-active polymers. a Solvent-free red blood cell cryopreservation upon addition of 1 mg mL⁻¹ PVA. Micrographs show recovered intact red blood cells; b Somatic cell recovery post-thaw in PVA/DMSO mixtures; c Polyampholyte IRI activity as a function of charge balance; d Cryopreservation of stem cells using ethylene glycol (EG) supplemented with polyampholytes and sucrose¹⁰². a is adapted from Deller et al. (2014)¹⁴. b is adapted from Deller et al. (2016)⁹⁷ published under CC-BY3.0 at RSC. c is adapted from Mitchell et al. (2014)⁷⁰ with permission from the Royal Society of Chemistry. This image is not included under the creative commons licence for this article. d is adapted from Matsumura et al. (2011)¹⁰². Copyright (2011) Elsevier Inc. This image is not included under the creative commons licence for this article