title: Green electrospun pantothenic acid/silk fibroin composite nanofibers: fabrication, characterization and biological activity.
abstract: Silk fibroin (SF) from Bombyx mori has many established excellent properties and has found various applications in the biomedical field. However, some abilities or capacities of SF still need improving to meet the need for using practically. Indeed, diverse SF-based composite biomaterials have been developed. Here we report the feasibility of fabricating pantothenic acid (vitamin B5, VB5)-reinforcing SF nanofibrous matrices for biomedical applications through green electrospinning. Results demonstrated the successful loading of D-pantothenic acid hemicalcium salt (VB5-hs) into resulting composite nanofibers. The introduction of VB5-hs did not alter the smooth ribbon-like morphology and the silk I structure of SF, but significantly decreased the mean width of SF fibers. SF conformation transformed into β-sheet from random coil when composite nanofibrous matrices were exposed to 75% (v/v) ethanol vapor. Furthermore, nanofibers still remained good morphology after being soaked in water environment for five days. Interestingly, as-prepared composite nanofibrous matrices supported a higher level of cell viability, especially in a long culture period and significantly assisted skin cells to survive under oxidative stress compared with pure SF nanofibrous matrices. These findings provide a basis for further extending the application of SF in the biomedical field, especially in the personal skin-care field.
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, P.R. China; Biomaterials and Tissue Engineering Lab, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, P.R. China; Australian Future Fibres Research and Innovation Centre, Institute for Frontier Materials, Deakin University, VIC 3217, Australia.
authors.forename: Linpeng
authors.initials: L
authors.lastname: Fan
authors.affiliation: Biomaterials and Tissue Engineering Lab, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, P.R. China; Australian Future Fibres Research and Innovation Centre, Institute for Frontier Materials, Deakin University, VIC 3217, Australia.
authors.forename: Zengxiao
authors.initials: Z
authors.lastname: Cai
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, P.R. China; Biomaterials and Tissue Engineering Lab, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, P.R. China.
authors.forename: Kuihua
authors.initials: K
authors.lastname: Zhang
authors.affiliation: Biomaterials and Tissue Engineering Lab, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, P.R. China.
authors.forename: Feng
authors.initials: F
authors.lastname: Han
authors.affiliation: Australian Future Fibres Research and Innovation Centre, Institute for Frontier Materials, Deakin University, VIC 3217, Australia.
authors.forename: Jingliang
authors.initials: J
authors.lastname: Li
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, P.R. China; Biomaterials and Tissue Engineering Lab, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, P.R. China.
authors.forename: Chuanglong
authors.initials: C
authors.lastname: He
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, P.R. China; Biomaterials and Tissue Engineering Lab, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, P.R. China.
authors.forename: Xiumei
authors.initials: X
authors.lastname: Mo
authors.affiliation: Australian Future Fibres Research and Innovation Centre, Institute for Frontier Materials, Deakin University, VIC 3217, Australia.
authors.forename: Xungai
authors.initials: X
authors.lastname: Wang
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, P.R. China; Biomaterials and Tissue Engineering Lab, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, P.R. China. Electronic address: fanlinpeng2005@163.com.
authors.forename: Hongsheng
authors.initials: H
authors.lastname: Wang
mesh_terms: D000818:Animals; D012831:Bombyx; D002460:Cell Line; D048430:Cell Shape / Q000187:drug effects; D002470:Cell Survival / Q000187:drug effects; D005349:Fibroins / Q000737:chemistry* / Q000494:pharmacology* / Q000648:ultrastructure; D055772:Green Chemistry Technology / Q000379:methods*; D051379:Mice; D057139:Nanofibers / Q000737:chemistry* / Q000648:ultrastructure; D036103:Nanotechnology / Q000379:methods*; D018384:Oxidative Stress / Q000187:drug effects; D010205:Pantothenic Acid / Q000737:chemistry* / Q000494:pharmacology*; D056951:Photoelectron Spectroscopy; D017550:Spectroscopy, Fourier Transform Infrared; D020122:tert-Butylhydroperoxide / Q000633:toxicity
chemical_list: D010205:Pantothenic Acid; D005349:Fibroins; D020122:tert-Butylhydroperoxide
keywords: Biomedical application; Composite nanofiber; Green electrospinning; Silk fibroin; Skin care product; Vitamin B(5)