A soon-to-be-commercialized human blood substitute product called Hemolink(TM) is so sensitive to oxygen that its Toronto-based maker, Hemosol, used to keep it frozen once it was packaged in IV infusion bags and nylon overpouches. Neither primary nor secondary packaging materials were able to keep oxygen away from the sensitive product, and only by freezing it could its stability and efficacy be protected.
But costly and inconvenient freezing became a thing of the past once Hemosol began using an overpouch made of a ClearFoil® film from Rollprint (Addison, IL). The high-barrier property of this multilayer lamination gives Hemolink a projected shelf life of at least two years at refrigerated temperatures of 4°C, and at least one year at room temperature.
