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学科主题口腔医学
NaF-loaded core-shell PAN-PMMA nanofibers as reinforcements for Bis-GMA/TEGDMA restorative resins
Cheng, Liyuan1; Zhou, Xuegang1; Zhong, Hong1; Deng, Xuliang2; Cai, Qing1; Yang, Xiaoping1
关键词Core-shell nanofibers Fluoride-ion release Dental resin Nanocomposite
刊名MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
2014
DOI10.1016/j.msec.2013.09.020
34页:262-269
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Materials Science, Biomaterials
研究领域[WOS]Materials Science
关键词[WOS]EXPERIMENTAL DENTAL COMPOSITES ; FLUORIDE RELEASE ; POLYMERIZATION SHRINKAGE ; FIBRILLAR SILICATE ; CERAMIC NANOFIBERS ; ORIENTATION ; FILLERS ; NANOCOMPOSITE ; DENTISTRY ; WHISKERS
英文摘要

A kind of core-shell nanofibers containing sodium fluoride (NaF) was produced and Used as reinforcing materials for dimethacrylate-based dental restorative resins in this study. The core-shell nanofibers were prepared by coaxial-electrospinning with polyacrylonitrile (PAN) and poly(methyl methacrylate) (PMMA) solutions as core and shell fluids, respectively. The produced PAN-PMMA nanofibers varied in fiber diameter and the thickness of PMMA′shell depending on electrospinning parameters. NaF-loaded nanofibers were obtained by incorporating NaF nanocrystals into the core fluid at two loadings (0.8 or 1.0 wt.%). Embedment of NaF nanocrystals into the PAN core did not damage the core-shell structure. The addition of PAN-PMMA nanofibers into Bis-GMA/TEGDMA clearly showed the reinforcement due to the good interfacial adhesion between fibers and resin. The flexural strength (Fs) and flexural modulus (Ey) of the composites decreased slightly as the thickness of PMMA shell increasing. Sustained fluoride releases with minor initial burst release were achieved from NaF-loaded core-shell nanofibers and the corresponding composites, which was quite different from the case of embedding NaF nanocrystals into the dental resin directly. The study demonstrated that NaF-loaded PAN-PMMA core-shell nanofibers were not only able to improve the mechanical properties of restorative resin, but also able to provide sustained fluoride release to help in preventing secondary caries. (C) 2013 Elsevier B.V. All rights reserved.

语种英语
WOS记录号WOS:000330489500033
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/58622
Collection北京大学口腔医学院_口腔修复科
北京大学口腔医学院_特诊科
作者单位1.Beijing Univ Chem Technol, Beijing Lab Biomed Mat, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China
2.Peking Univ, Sch & Hosp Stomatol, Dept Prosthodont, Beijing 100081, Peoples R China
Recommended Citation
GB/T 7714
Cheng, Liyuan,Zhou, Xuegang,Zhong, Hong,et al. NaF-loaded core-shell PAN-PMMA nanofibers as reinforcements for Bis-GMA/TEGDMA restorative resins[J]. MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS,2014,34:262-269.
APA Cheng, Liyuan,Zhou, Xuegang,Zhong, Hong,Deng, Xuliang,Cai, Qing,&Yang, Xiaoping.(2014).NaF-loaded core-shell PAN-PMMA nanofibers as reinforcements for Bis-GMA/TEGDMA restorative resins.MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS,34,262-269.
MLA Cheng, Liyuan,et al."NaF-loaded core-shell PAN-PMMA nanofibers as reinforcements for Bis-GMA/TEGDMA restorative resins".MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS 34(2014):262-269.
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