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Electrospun PCL/keratin/AuNPs mats with the catalytic generation of nitric oxide for potential of vascular tissue engineering
Author(s) -
Wan Xiuzhen,
Liu Pengcheng,
Jin Xingxing,
Xin Xuanxuan,
Li Pengfei,
Yuan Jiang,
Shen Jian
Publication year - 2018
Publication title -
journal of biomedical materials research part a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.849
H-Index - 150
eISSN - 1552-4965
pISSN - 1549-3296
DOI - 10.1002/jbm.a.36521
Subject(s) - materials science , biomedical engineering , viability assay , thrombogenicity , tissue engineering , x ray photoelectron spectroscopy , thermogravimetric analysis , nuclear chemistry , nanotechnology , chemical engineering , platelet , biochemistry , chemistry , cell , medicine , immunology , engineering
Nitric oxide (NO)‐generating materials are beneficial for vascular tissue engineering (VTE) scaffold because the produced NO would enhance endothelial cells viability while inhibit smooth muscle cell (SMC) proliferation and reduce platelet adhesion, resulting in ideal hemocompatibility and endothelialization. Herein, poly(ε‐caprolactone) (PCL)/keratin biocomposite mats were first fabricated, followed by in situ gold (Au) nanoparticles loading to afford PCL/keratin/AuNPs mats. These mats were characterized using field emission scanning electron microscopy (FE‐SEM), X‐ray photoelectron spectroscopy (XPS), X‐ray diffraction (XRD), and thermogravimetric analysis (TGA). The PCL/keratin/AuNPs mats were demonstrated to be capable of catalyzing NO release in the mimicked blood microenvironments. The generated NO could enhance human umbilical vein endothelial cell growth and inhibit human umbilical arterial SMC viability. In addition, these mats maintained the antibacterial activity of Au nanoparticles with good blood compatibility. Taken together, these keratin‐based composite mats have potential usage in the VTE. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 3239–3247, 2018.