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Scheme of the (i) top, (ii) bottom and (iii) cross-section view of the freezing devices. (A) The non-insulated freezing device (NFD) contains a conductive aluminum multiwell plate, with a cover and a base of a thermo-conductive copper alloy. (B) The insulated freezing device (IFD) is composed by the same components of the NFD and an insulating outer shell. EPS—expanded polystyrene.
