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The preparation of the ordered pores colloidal crystal scaffold and its role in promoting growth of lung cells.
Colloids and Surfaces. B, Biointerfaces 2019 January 2
Lung is one of important organs and lung diseases seriously affect the health of human beings. In this study, chitosan and gelatin as natural biological macromolecules raw material for the synthesis of ordered colloidal crystal scaffolds (CCS), Fe3 O4 magnetic nanoparticles (MNPs) were used as pore-making for the first time. The pore-making agent were added into the hydrogels to synthesis the ordered (magnetic field) and disordered (no magnetic field) CCS. Collagen and basic fibroblast growth factor (bFGF) modified on the surface of CCS. Then mouse lung epithelial cells (TC-1) and normal human bronchial epithelial cells (Beas-2B) were cultured on the scaffold, obviously induced cell proliferation. Various physical and chemical characteristics indicate that the preparation of scaffolds and modified growth factors can greatly promote the proliferation of these two cells. In addition, the scafolld was implanted into the SD rat in vivo, and routine blood tests showed that the stent had a small inflammatory response to the rat. This may be one of the effective strategies for the future treatment of lung injury repair.
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