Spectroscopic studies on the interaction of pyridinoline cross-linking in type 1 collagen with ZIF8-HB

Abstract

Many kinds of fibrosis are related to the content of pyridinoline cross-linking in type 1 collagen. In this study, ZIF-8 (zeolitic imidazolate framework), a metal organic framework (MOF), and ZIF8-hypocrellin B (ZIF8-HB), which combined the merits of hypocrellin B and the properties of ZIF-8, were prepared and applied to the photodegradation of the pyridinoline cross-linking. The effects of O2 and H2O2 in the photodynamic action were investigated. The results indicate that ZIF8-HB is an efficient photosensitizer to decompose pyridinoline cross-linking in collagen.