Remotely actuated shape memory effect of electrospun composite nanofibers
Abstract
One class of biodegradable polymer composite nanofibers was fabricated with an electrospinning process using chemically cross-linked poly(ε-caprolactone) (c-PCL) as the matrix and multiwalled carbon nanotubes (MWNTs) as the reinforced filler coated with Fe(3)O(4) nanoparticles as a magnetism responsive source. The composite fibers showed an excellent shape memory effect, triggered both by hot water and by an alternating magnetic field. The heat in the PCL matrix generated from magnetic nanoparticles via hysteresis loss in the magnetic field was also determined quantitatively. The Fe(3)O(4)-loaded MWNT composite nanoparticles (Fe(3)O(4)@CD-M) were synthesized through two steps: (1) the raw MWNTs were firstly functionalized by grafting maleic anhydride (MA) on their surface through a free radical reaction and later covalently modified by β-cyclodextrin (β-CD) through an esterification reaction; (2) Fe(3)O(4)@CD-M composite nanoparticles were prepared by chemical co-precipitation of Fe(2+) and Fe(3+) ions on the surface of the β-CD functionalized MWNTs with an electrostatic self-assembly approach using β-CD as the depositional locus. Alamar blue assay was also performed from culturing osteoblast populations to evaluate the cytotoxicity. The result showed that the electrospun composite fibers possessed good biocompatibility and could be applied in biomedical fields.
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Gong et al. self-assembled Fe3O4 on the cavity of CD which functionalized MWCNTs; the Fe3O4 particles were aligned along the nanofiber axis; the composite nanofibers showed an excellent SME, triggered by an alternating magnetic field.
“As shown in Fig. 7, Gong et al. [395] self-assembled Fe 3 O 4 on the cavity of eCD which functionalized MWCNTs.The Fe 3 O 4 -loaded MWCNT composite nanoparticles (Fe 3 O 4 @CD-M) were prepared following two steps.”
From A review of stimuli-responsive shape memory polymer composites (2013) · cites this paper as [395]
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- Authors
- Gong, T., Li, W., Chen, H., Wang, L., Shao, S., & Zhou, S.
- Affiliations
- Southwest Jiaotong University (CN)
- Corresponding author
- Zhou, Shaobing
- Venue
- Acta Biomaterialia
- Publisher
- Elsevier BV
- Published
- 2012-03
- Volume
- 8
- Issue
- 3
- Pages
- 1248-1259
- ISSN
- 1742-7061 (ISSN-L)
- OpenAlex
- W2001804544
- Cited by
- 147
- References
- 61
- Citations by year
- 2026: 3 · 2025: 12 · 2024: 7 · 2023: 9 · 2022: 16 · 2021: 9 · 2020: 14 · 2019: 12 · 2018: 9 · 2017: 10 · 2016: 15 · 2015: 12 · 2014: 10 · 2013: 7 · 2012: 2
- FWCI
- 2.49
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Acta Biomaterialia (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Natural Science Foundation of China (30970723, 50773065, 51173150)
- National Basic Research Program of China (2012CB933602)
- Fundamental Research Funds for the Central Universities (SWJTU11ZT10)
- Topics
- Physical Sciences › Materials Science › Biomaterials › Electrospun Nanofibers in Biomedical Applications
- Physical Sciences › Engineering › Mechanical Engineering › Advanced Materials and Mechanics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer composites and self-healing
- Keywords
- shape memory effect, electrospun nanofibers, polycaprolactone, multi-walled carbon nanotubes, Fe3O4 nanoparticles, magnetic nanoparticles, alternating magnetic field, magnetic hysteresis loss, β-cyclodextrin, maleic anhydride functionalization, electrostatic self-assembly, biodegradable polymer composites, osteoblast biocompatibility, cytotoxicity
- MeSH terms
- Animals, Electrochemistry, Ferric Compounds, Materials Testing, Osteoblasts, Polyesters, Nanotubes, Carbon, beta-Cyclodextrins, Rats, Nanocomposites, Nanofibers, Magnetic Fields
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