Fabrication of multi-walled carbon nanotube layers with selected properties via electrophoretic deposition: physicochemical and biological characterization

Benko, Aleksandra; Przekora, Agata; Wesełucha–Birczyńska, Aleksandra; Nocuń, Marek; Ginalska, Grażyna; Błażewicz, M.

doi:10.1007/s00339-016-9984-z

Cited by 26 publications

(19 citation statements)

References 38 publications

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“…This is in accordance with our previous studies which have shown high bioactivity of such nanotubes in contact with cells as well as in other bioactivity tests. 25,26 The results indicate that such modification of the biocompatible titanium surface significantly improves its biological properties and demonstrate the usefulness of such approach. Figure 7 shows cell morphology on the surface of titanium and CNT-modified titanium after 7 days.…”

Section: Mechanical Analysismentioning

confidence: 91%

Carbon nanotube-based coatings on titanium

et al. 2015

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This paper reports results of the modification of titanium surface with multiwalled carbon nanotubes (CNTs). The Ti samples were covered with CNTs via electrophoretic deposition (EPD) process. Prior to EPD process, CNTs were functionalized by chemical treatment. Mechanical, electrochemical and biological properties of CNT-covered Ti samples were studied and compared to those obtained for unmodified titanium surface. Atomic force microscopy was used to investigate the surface topography. To determine micromechanical characteristics of CNT-covered metallic samples indentation tests were conducted. Throughout electrochemical studies were performed in order to characterize the impact of the coating on the corrosion of titanium substrate. In vitro experiments were conducted using the human osteoblast NHOst cell line. CNT layers shielded titanium from corrosion gave the surface-enhanced biointegrative properties. Cells proliferated better on the modified surface in comparison to unmodified titanium. The deposited layer enhanced cell adhesion and spreading as compared to titanium sample.

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Section: Mechanical Analysismentioning

confidence: 91%

Carbon nanotube-based coatings on titanium

et al. 2015

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“…of 284.6 eV, which was ascribed to the carbon–carbon bond with sp 2 hybridization, originating from the graphic structure of the CNTs (Fig. a) .These carbon atoms were not involved in any functional groups or other structural defects of the MWCNTs. The remaining bands were ascribed as follows: the band at 2856 eV to the sp hybridized carbon, the band at 286.7 eV to functional groups with a single C‐O bond, such as alcohols or carbonyls, and bands at 288.7 and 290.8 eV were assigned to the presence of carboxyl functional groups and acid anhydrides, respectively.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of CNT/ION hybrids and their impact on the biomedical applicability of PCL‐based composite films

et al. 2018

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To meet requirements of regenerative medicine, novel biomaterials should either mimic natural tissues or enable multi‐way stimulation of cells. In this study, we prepared two types of hybrids, differing in composition and morphology by decorating CNTs with iron oxide nanoparticles (IONs), and introduced them into the poly(ε‐caprolactone) (PCL) to prepare biocompatible composite films using casting method. The effect of the type of multi‐walled carbon nanotube (MWCNT)/ION hybrid and its content on the composites’ parameters that are important for cell‐biomaterial interaction that is, surface morphology, wettability, surface energy, and mechanical properties, was examined and compared with results obtained for the PCL, PCL/MWCNT and PCL/ION films. Additionally, materials with IONs were characterized in terms of their magnetic properties. Irrespective of the nanoaddition type, CNT‐based films with content of CNTs up to 1 wt% were characterized by similar surface parameters (completely distinguishable from the PCL film). Pristine CNTs were found to improve the tensile strength of the PCL films while IONs caused its reduction. Interestingly, composites containing 1 wt% of the hybrid, with a 1:1 ratio of MWCNTs and IONs, exhibited tensile strength similar to the PCL/CNTs film. Decoration of CNTs with IONs was found to significantly improve the dispersion level of magnetic phase within the polymer. POLYM. COMPOS., 40:E1818–E1830, 2019. © 2018 Society of Plastics Engineers

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“…The peaks in the shoulder of the main peak at 285.1-285.4, 286.5, and 288.9-289.8 eV could be assigned to Sp 3 /C-OH/C-O-C, C-O, and - * /O-C=O, respectively. Sp 3 was attributed to amorphous carbon/defects in the nanotube structure, which, at this defect, could be grafted to the -OH and -C-O [40,41]. It is widely recognized that the mixing of oxide NPs by the formation of nucleus Fe + on CNTs induces damage in CNTs [25].…”

Section: Xps Analyses the Xps Technique Is Used To Analyzementioning

confidence: 99%

Fast-LPG Sensors at Room Temperature by α-Fe₂O₃/CNT Nanocomposite Thin Films

Chaitongrat

Chaisitsak

2018

Journal of Nanomaterials

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We present performance of a room temperature LPG sensor based on -Fe 2 O 3 /CNT (carbon nanotube) nanocomposite films. The nanocomposite film was fabricated via the metallic Fe catalyst particle on CNTs in which both the catalyst particles and the CNT were simultaneously synthesized by chemical vapor deposition (CVD) synthesis and were subsequently annealed in air to create -Fe 2 O 3 . These methods are simple, inexpensive, and suitable for large-scale production. The structure, surface morphologies, and LPG response of nanocomposite films were investigated. Raman spectroscopy and XPS analysis showed the formation of -Fe 2 O 3 on small CNTs (SWNTs). Morphological analysis using FE-SEM and AFM revealed the formation of the porous surface along with roughness surface. Additionally, the sensing performance of -Fe 2 O 3 /CNTs showed that it could detect LPG concentration at lower value than 25% of LEL with response/recovery time of less than 30 seconds at room temperature. These results suggest that the -Fe 2 O 3 /CNTs films are challenging materials for monitoring LPG operating at room temperature.

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Fabrication of multi-walled carbon nanotube layers with selected properties via electrophoretic deposition: physicochemical and biological characterization

Cited by 26 publications

References 38 publications

Carbon nanotube-based coatings on titanium

Carbon nanotube-based coatings on titanium

Fabrication of CNT/ION hybrids and their impact on the biomedical applicability of PCL‐based composite films

Fast-LPG Sensors at Room Temperature by α-Fe₂O₃/CNT Nanocomposite Thin Films

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Fabrication of multi-walled carbon nanotube layers with selected properties via electrophoretic deposition: physicochemical and biological characterization

Cited by 26 publications

References 38 publications

Carbon nanotube-based coatings on titanium

Carbon nanotube-based coatings on titanium

Fabrication of CNT/ION hybrids and their impact on the biomedical applicability of PCL‐based composite films

Fast-LPG Sensors at Room Temperature by α-Fe2O3/CNT Nanocomposite Thin Films

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Product

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Fast-LPG Sensors at Room Temperature by α-Fe₂O₃/CNT Nanocomposite Thin Films