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Preparation of Poly(ε-caprolactone)/Poly(ester amide) Electrospun Membranes for Vascular Repair

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Chemical Research in Chinese Universities Aims and scope

Abstract

With adjustable amphiphilicity and anionic/cationic charge, biodegradability and biocompatibility, amino acid-based poly(ester amide)s(PEAs) have drawn attention in the research of tissue engineered vascular grafts. In this work, L-phenylalanine-based PEAs with or without L-lysine were synthesized through polycondensation, and ultrafine fibrous grafts consisted of PEAs and poly(ε-caprolactone)(PCL) in given mass ratios were further prepared via blend electrospinning. Surface characterizations by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy confirmed the chemical structure, and the wettability indicated that the prepared PCL/PEAs electrospun membranes exhibited less hydrophobic than PCL. Tensile results showed that the PCL/PEAs membranes possessed suitable mechanical properties, which could meet the requirements of artificial blood vessels. Cell culture and hemolytic tests exhibited that the PCL/PEAs electrospun membranes are biocompatible. In general, the electrospun grafts of PCL/PEAs could be applied for vascular repair.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (No.52073204).

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Correspondence to Xiaoyan Yuan.

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The authors declare no conflicts of interest.

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Zhang, X., Bai, S., Zang, L. et al. Preparation of Poly(ε-caprolactone)/Poly(ester amide) Electrospun Membranes for Vascular Repair. Chem. Res. Chin. Univ. 38, 1111–1117 (2022). https://doi.org/10.1007/s40242-022-1480-8

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