Deferoxamine immobilized poly(D,L-lactide) membrane via polydopamine adhesive coating: The influence on mouse embryo osteoblast precursor cells and human umbilical vein endothelial cells.

Published on Jan 1, 2017in Materials Science and Engineering: C5.88
· DOI :10.1016/J.MSEC.2016.09.043
Huihua Li3
Estimated H-index: 3
(JNU: Jinan University),
Binghong Luo16
Estimated H-index: 16
(JNU: Jinan University)
+ 3 AuthorsSeeram Ramakrishna162
Estimated H-index: 162
(JNU: Jinan University)
Osteogenesis and angiogenesis play the prominent role in the bone regeneration. In this study, deferoxamine (DFO), an induced agent for osteogenesis and angiogenesis, was modified onto the surface of poly(D,L-lactide) (PDLLA) membrane via a facile and convenient approach based on the self-polymerization of dopamine (DOPA). The surface composition, morphology, hydrophilicity and surface energy of the original and modified PDLLA membranes were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electronic microscopy (SEM), atomic force microscopy (AFM) and contact angle measurement. The surface roughness and hydrophilicity of the PDLLA membrane were obviously increased by introducing either the single polydopamine (PDOPA) or the dual layers of PDOPA and DFO. In vitro cells culture experiments indicated that both the PDLLA/PDOPA and PDLLA/PDOPA-DFO composite membranes were more beneficial to the attachment, proliferation and spreading of MC3T3-E1 cells and HUVECs compared to the original PDLLA membrane. The PDLLA/PDOPA-DFO membrane was supportive for the proliferation of both MC3T3-E1 cells and HUVECs, and especially for HUVECs. The results suggested that the as-prepared PDLLA/PDOPA-DFO composite can be expected to be used as a promising bone regenerative material with promoted angiogenesis.
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