Methods of preparing crosslinked materials and bioprosthetic...

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Peptide containing doai

Reexamination Certificate

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Reexamination Certificate

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07053051

ABSTRACT:
Methods for making crosslinked material, such as collagen-based material, and bioprosthetic devices. The crosslinked material includes hydroxyl groups, carboxyl groups, and amine groups prior to crosslinking. The methods include removing at least a portion of the zero-length ester crosslinks in a crosslinked material and/or blocking at least a portion of the amine groups that are reactive with carboxyl groups and form zero-length crosslinks.

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