Conducting MWNT/poly(vinyl acetate) composite nanofibres by electrospinning

Wang, Guan; Tan, Zhongkui; Liu, Xueqing; Chawda, Samrat; Koo, Jaseung; Samuilov, Vladimir; Dudley, Michael

doi:10.1088/0957-4484/17/23/019

Cited by 62 publications

(48 citation statements)

References 38 publications

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“…In addition, electrospinning method offers the synthesis polymer/carbon nanotubes (CNTs) nanocomposite fibers without compromising the structural integrity of the individual CNTs [38, 39]. …”

Section: Introductionmentioning

confidence: 99%

Evaluation of Antithrombogenicity and Hydrophilicity on Zein-SWCNT Electrospun Fibrous Nanocomposite Scaffolds

Dhandayuthapani

Varghese

Girija

et al. 2012

International Journal of Biomaterials

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Design of blood compatible surfaces is required to minimize platelet surface interactions and increase the thromboresistance of foreign surfaces when they are used as biomaterials especially for artificial blood prostheses. In this study, single wall carbon nanotubes (SWCNTs) and Zein fibrous nanocomposite scaffolds were fabricated by electrospinning and evaluated its antithrombogenicity and hydrophilicity. The uniform and highly smooth nanofibers of Zein composited with different SWCNTs content (ranging from 0.2 wt% to 1 wt%) were successfully prepared by electrospinning method without the occurrence of bead defects. The resulting fiber diameters were in the range of 100–300 nm without any beads. Composite nanofibers with and without SWCNT were characterized through a variety of methods including scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis, and tensile mechanical testing. The water uptake and retention ability of composite scaffolds decreased whereas thermal stability increased with an addition of SWCNTs. Hemolytic property and platelet adhesion ability of the nanocomposite (Zein-SWCNTs) were explored. These observations suggest that the novel Zein-SWCNTs composite scaffolds may possibly hold great promises as useful antithrombotic material and promising biomaterials for tissue engineering application.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Antithrombogenicity and Hydrophilicity on Zein-SWCNT Electrospun Fibrous Nanocomposite Scaffolds

Dhandayuthapani

Varghese

Girija

et al. 2012

International Journal of Biomaterials

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“…It is important to note that the core component consists almost completely of MWNTs. In the case composites formed by blending MWNTs into a polymer matrix, the MWNTs must form a network structure to conduct current 12,16. We observed that such conductivities become saturated at relatively low MWNT loading.…”

Section: Resultsmentioning

confidence: 81%

Conductive Cable Fibers with Insulating Surface Prepared by Coaxial Electrospinning of Multiwalled Nanotubes and Cellulose

et al. 2010

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A core-sheath of multi-walled carbon nanotube (MWNT)-cellulose fibers of diameters from several hundreds nm to several µm were prepared by co-axial electrospinning from a non-valatile, non-flammable ionic liquid (IL) solvent, 1-methyl-3-methylimidazolium acetate ([EMIM][Ac]). MWNTs were dispersed in IL to form a gel solution. This gel core solution was electrospun surrounded by a sheath solution of cellulose disolved in the same IL. Electrospun fibers were collected in a coagulation bath containing ethanol-water to completely remove the IL and dried to form a core-sheath MWNT-cellulose fibers having a cable structure with a conductive core and insulating sheath. Enzymatic treatment of a portion of a mat of these fibers with cellulase selectively removed the cellulose sheath exposing the MWNT core for connection to an electrode. These MWNT-cellulose fiber mats demonstrated excellent conductivity due to a conductive pathway of bundleled MWNTs. Fiber mat conductivity increased with increasing ratio of MWNT in the fibers with a maximum conductivity of 10.7 S/m obtained at 45 wt% MWNT loading.

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“…CNTs, depending on their structural parameters can be conductors or semiconductors 6,17. CNTs obtained from the regular method are usually a blend of conducting and semiconducting materials 19. These parameters change significantly both within a sample and between samples from different batches and labs.…”

Section: Resultsmentioning

confidence: 99%

Structural characterization and investigation of selected properties of hybrid yarn coated with carbon nanotube composite nanofibers

Bateni

Ravandi

Valipouri

2012

J of Applied Polymer Sci

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The current research discusses the efforts to achieve yarns coated with composite nanofibers and investigates some of their properties. Polyacrylonitrile/dimethyl formamide solutions containing various mass concentrations of single-wall and multiwall carbon nanotubes (SWCNTs and MWCNTs) and also functionalized SWCNTs were electrospun onto an acrylic staple yarn to produce hybrid yarns. The effect of the CNT addition on the final morphologies of the nanofibers was evaluated using SEM. The fibers prepared with higher CNT concentrations had larger diameters than those of fibers obtained by lower concentrations. The SEM, the optical microscope, and the microtome were used to investigate the structural morphology of the hybrid yarns. The conductivity and the viscosity of the solutions at different SWCNT concentrations were measured. The surface electrical resistance and the mechanical properties of the hybrid yarns composed of the nanofibers as sheath were analyzed.

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Conducting MWNT/poly(vinyl acetate) composite nanofibres by electrospinning

Cited by 62 publications

References 38 publications

Evaluation of Antithrombogenicity and Hydrophilicity on Zein-SWCNT Electrospun Fibrous Nanocomposite Scaffolds

Evaluation of Antithrombogenicity and Hydrophilicity on Zein-SWCNT Electrospun Fibrous Nanocomposite Scaffolds

Conductive Cable Fibers with Insulating Surface Prepared by Coaxial Electrospinning of Multiwalled Nanotubes and Cellulose

Structural characterization and investigation of selected properties of hybrid yarn coated with carbon nanotube composite nanofibers

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