4. Hydrogen peroxide (H2O2) is a widely used approach for the sterilization of tissue engineering scaffolds and thermosensitive polymers, as the temperature achieved during sterilization ranges from 37C to 44C, and the by-products of the sterilization process are non-toxic. H2O2 is manufactured by the anthraquinone process, which begins with the reduction of anthraquinone to anthrahydroquinone, typically by hydrogenation on a solid palladium catalyst. 4. Hydrogen peroxide (H2O2) is a widely used approach for the sterilization of tissue engineering scaffolds and thermosensitive polymers, as the temperature achieved during sterilization ranges from 37C to 44C, and the by-products of the sterilization process are non-toxic. H2O2 is manufactured by the anthraquinone process, which begins with the reduction of anthraquinone to anthrahydroquinone, typically by hydrogenation on a solid palladium catalyst