Preparation and characterization of aligned carbon nanotubes/polylactic acid composite fibers

2012 ◽  
Vol 407 (13) ◽  
pp. 2451-2457 ◽  
Author(s):  
Yuxia Kong ◽  
Jie Yuan ◽  
Jun Qiu
Keyword(s):  
Carbon Nanotubes ◽  
Polylactic Acid ◽  
Composite Fibers ◽  
Aligned Carbon Nanotubes

Study on the preparation and properties of aligned carbon nanotubes/polylactide composite fibers

2012 ◽  
Vol 33 (9) ◽  
pp. 1613-1619 ◽  
Author(s):  
Yuxia Kong ◽  
Jie Yuan ◽  
Zongming Wang ◽  
Jun Qiu
Keyword(s):  
Carbon Nanotubes ◽  
Composite Fibers ◽  
Aligned Carbon Nanotubes

Flexible, weavable and efficient microsupercapacitor wires based on polyaniline composite fibers incorporated with aligned carbon nanotubes

2013 ◽  
Vol 1 (2) ◽  
pp. 258-261 ◽  
Author(s):  
Zhenbo Cai ◽  
Li Li ◽  
Jing Ren ◽  
Longbin Qiu ◽  
Huijuan Lin ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Composite Fibers ◽  
Aligned Carbon Nanotubes

scholarly journals Scanning Probe Techniques for Characterization of Vertically Aligned Carbon Nanotubes

2019 ◽  
Author(s):  
Marina V. Il’ina ◽  
Oleg I. Il’in ◽  
Vladimir A. Smirnov ◽  
Yuriy F. Blinov ◽  
Boris G. Konoplev ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Scanning Probe ◽  
Vertically Aligned Carbon Nanotubes ◽  
Aligned Carbon Nanotubes ◽  
Vertically Aligned

Variable-force microscopy for advanced characterization of horizontally aligned carbon nanotubes

2011 ◽  
Vol 22 (27) ◽  
pp. 275717 ◽  
Author(s):  
Ali A Almaqwashi ◽  
Joshua W Kevek ◽  
Rachel M Burton ◽  
Tristan DeBorde ◽  
Ethan D Minot
Keyword(s):  
Carbon Nanotubes ◽  
Advanced Characterization ◽  
Force Microscopy ◽  
Variable Force ◽  
Aligned Carbon Nanotubes

Raman characterization of aligned carbon nanotubes produced by thermal decomposition of hydrocarbon vapor

1997 ◽  
Vol 70 (20) ◽  
pp. 2684-2686 ◽  
Author(s):  
Wenzhi Li ◽  
Hao Zhang ◽  
Chaoying Wang ◽  
Yun Zhang ◽  
Liwen Xu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Decomposition ◽  
Aligned Carbon Nanotubes ◽  
Raman Characterization ◽  
Hydrocarbon Vapor

scholarly journals The Development of Polylactic Acid/Multi-Wall Carbon Nanotubes/Polyethylene Glycol Scaffolds for Bone Tissue Regeneration Application

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1740
Author(s):  
Shih-Feng Wang ◽  
Yun-Chung Wu ◽  
Yu-Che Cheng ◽  
Wei-Wen Hu
Keyword(s):  
Carbon Nanotubes ◽  
Polyethylene Glycol ◽  
Drug Release ◽  
Bone Tissue ◽  
Polylactic Acid ◽  
Tissue Regeneration ◽  
Bone Tissue Regeneration ◽  
Composite Fibers ◽  
Alizarin Red ◽  
Multi Wall Carbon Nanotubes

Composite electrospun fibers were fabricated to develop drug loaded scaffolds to promote bone tissue regeneration. Multi-wall carbon nanotubes (MWCNTs) were incorporated to polylactic acid (PLA) to strengthen electrospun nanofibers. To modulate drug release behavior, different ratios of hydrophilic polyethylene glycol (PEG) were added to composite fibers. Glass transition temperature (Tg) can be reduced by the incorporated PEG to enhance the ductility of the nanofibers. The SEM images and the MTT results demonstrated that composite fibers are suitable scaffolds for cell adhesion and proliferation. Dexamethasone (DEX), an osteogenic inducer, was loaded to PLA/MWCNT/PEG fibers. The surface element analysis performed by XPS showed that fluorine of DEX in pristine PLA fibers was much higher than those of the MWCNT-containing fibers, suggesting that the pristine PLA fibers mainly load DEX on their surfaces, whereas MWCNTs can adsorb DEX with evenly distribution in nanofibers. Drug release experiments demonstrated that the release profiles of DEX were manipulated by the ratio of PEG, and that the more PEG in the nanofibers, the faster DEX was released. When rat bone marrow stromal cells (rBMSCs) were seeded on these nanofibers, the Alizarin Red S staining and calcium quantification results demonstrated that loaded DEX were released to promote osteogenic differentiation of rBMSCs and facilitate mineralized tissue formation. These results indicated that the DEX-loaded PLA/MWCNT/PEG nanofibers not only enhanced mechanical strength, but also promoted osteogenesis of stem cells via the continuous release of DEX. The nanofibers should be a potential scaffold for bone tissue engineering application.

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