期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 165, 期 -, 页码 1219-1228出版社
ELSEVIER
DOI: 10.1016/j.ijbiomac.2020.10.002
关键词
Fish scale gelatine; Polylactide; Electrospun nanofiber; Cytocompatibility; Antibacterial activity
资金
- Ministry of Science and Technology, Taiwan (Taipei City, Taiwan, R.O.C.) [MOST-108-2622-E-244-001-CC3]
We report herein new nanofibers prepared from fish scale gelatine (FSG), modified polylactide (MPLA), and a natural antibacterial agent of freshwater clam(Corbicula fluminea Estefania) shell powder (FCSP). A preparation of FSG fromMullet scales is also described. To improve the biocompatibility and antibacterial activity of the nonwoven nanofibers, MPLA/FCSP was added to enhance their antibacterial properties. FSG was then combined with MPLA/FCSP using an electrospinning technique to improve the biocompatibility of the as-fabricated 100-500 nm-diameter non-wovenMPLA/FCSP/FSG nanofibers. The resulting tensile properties andmorphological characteristics indicated enhanced adhesion among FSG, FCSP, and MPLA in the MPLA/FCSP/FSG nanofibers, as well as improved water resistance and tensile strength, compared with the PLA/FSG nanofibers. MTT assay, cell-cycle, and apoptosis analyses showed that both PLA/FSG and MPLA/FCSP/FSG nanofibers had good biocompatibility. Increasing the FSG content in PLA/FSG andMPLA/FCSP/FSG nanofibers enhanced cell proliferation and free-radical scavenging ability, but did not affect cell viability. Quantitative analysis of bacteria inhibition revealed that FCSP imparts antibacterial activity. (C) 2020 Elsevier B.V. All rights reserved.
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