Electromechanical deformation sensors based on polyurethane/polyaniline electrospinning nanofibrous mats

Tian, Mingwei; Wang, Yujiao; Qu, Lijun; Zhu, Shifeng; Han, Guangting; Zhang, Xiansheng; Zhou, Quan; Du, Minzhi; Shuli, Chi

doi:10.1016/j.synthmet.2016.05.005

Cited by 46 publications

(28 citation statements)

References 29 publications

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“…The conductivity of polymeric fibers was measured by a Digital Multi Meter (UT33D+, Rajshree Electro Systems, Maharashtra, India). The voltage was set on −10 to 10 V at ambient temperature and the electrical conductivity ( σ ) was measured according to Equation (5), 26 where R and d are surface square resistance (Ω.cm −2 ) and film thickness (cm), respectively.

σ ((), normalS . {cm}^{- 1}) = 1 / italicRd

…”

Section: Methodsmentioning

confidence: 99%

Decoration of electrical conductive polyurethane‐polyaniline/polyvinyl alcohol matrixes with mussel‐inspired polydopamine for bone tissue engineering

Ghorbani

Ghalandari

Khan

et al. 2020

Biotechnology Progress

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Electrospinning is a versatile technology for the fabrication of nanofibrous matrixes to regenerate defects. This study aims to develop a functionalized and electroconductive polymeric matrix to improve rat bone marrow mesenchymal stem cell adhesion, proliferation, and differentiation. Herein, the influence of the chemical composition of the substrate on homogeneous modification of the surface with mussel-inspired polydopamine (PDA) is focused. Accordingly, the deposition of PDA on the surface was proved by Fourier transform infrared spectroscopy. Morphologies of the scaffolds demonstrated homogeneous decoration of the polyvinyl alcohol (PVA)/polyurethane (PU)-polyaniline (PANI) matrixes with PDA, while a lower density of mussel-inspired polymer was observed in bare PU-PANI constructs. Although uniform and dense precipitation of PDA reduced conductivity of scaffolds 1.2 times compared with the samples with a low density of the PDA, 1.1 and 1.2 times enhancement in tensile strength and Young's modulus, respectively, were the strength of the applied process, especially in bone tissue engineering area. Contact angle measurements demonstrated about two times reduction in measured values, which shows improvement in hydrophilicity of PDA-modified PVA/PU-PANI fibers compared with PDA-coated PU-PANI ones. Swelling ratio and mass loss ratio calculations revealed enhancement in measured values as a function of homogeneous and dense coating, which arise from hydrophilicity of the polymeric substrate. The bioactivity test indicated that a dense layer of PDA strongly supports formations of hydroxyapatite-like crystals. Moreover, homogeneous decoration of conductive matrixes with PDA showed suitable cell viability, adhesion, and spreading while cellscaffolds interactions improved under electrical stimulation. Higher expression of alkaline phosphatase and secretion of Collagen I under the electrical field proved the applicability of modified electroconductive scaffolds for further preclinical and clinical studies to introduce as a reconstructive bone substitute.

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σ ((), normalS . {cm}^{- 1}) = 1 / italicRd

…”

Section: Methodsmentioning

confidence: 99%

Decoration of electrical conductive polyurethane‐polyaniline/polyvinyl alcohol matrixes with mussel‐inspired polydopamine for bone tissue engineering

Ghorbani

Ghalandari

Khan

et al. 2020

Biotechnology Progress

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“…The synthesized micro/nanofibers with various morphologies including core–sheath, hollow, porous, nanoribbons, and multilayered mates have been produced and shown great potentials in tissue engineering, filtration, textile manufacturing, sensors, electronics, catalysis, energy storage, etc. Despite its advantages such as high surface area/volume ratios, its porosity as well as composition could be manipulated for desired properties and functions . The entangled fibers with heat treatment generate great amount of open pores and large voids for more heavy metal active sites, resulting in enhanced sensing performances …”

Section: Synthesis Methods Of Novel Electrode Materials For Electrochmentioning

confidence: 99%

“…Despite its advantages such as high surface area/volume ratios, its porosity as well as composition could be manipulated for desired properties and functions . The entangled fibers with heat treatment generate great amount of open pores and large voids for more heavy metal active sites, resulting in enhanced sensing performances …”

Section: Synthesis Methods Of Novel Electrode Materials For Electrochmentioning

confidence: 99%

Recent Advances and Perspective on Design and Synthesis of Electrode Materials for Electrochemical Sensing of Heavy Metals

Hou

Zeinu

Gao

et al. 2018

Energy & Environ Materials

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The increase in release of toxic heavy metals into natural water attracts much attention due to its devastating effect on ecology and human health. The design and implementation of green electrode materials is pivotal for improving the electrochemical performance of in situ heavy metal monitoring. This work reviews various novel electrode materials and hybrid materials that improve electrochemical detection. Modified green and novel electrode materials offer better performance due to their improved deposition with wide linear and enhanced response under optimized sensing parameters. In particular, recent works related to gold, carbon materials, bismuth, and metal oxide‐based electrodes are reviewed. The environmentally friendly (“green”) characteristics, as well as their versatility and flexibility, are especially emphasized. In addition, synthesis methods and novel designs of electrode integration are highlighted. Most of the substantial achievements as well as breakthroughs in recent years are surveyed, and the challenges and prospective in this field are also identified.

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“…Curing is a very important step of the thermoset composite preparation process. There are number of ways to prepare and cure thermoset composites and blends, such as the reactive combination method, which cures via two-package thermoset systems, curing by atmospheric components, such as oxygen or water vapour, or curing by inhibitors, which are volatile in nature [34][35][36]. However, for the preparation of all type of PANI thermoset composites, in situ polymerization methods are often used and curing is always the last step.…”

Section: Introductionmentioning

confidence: 99%

A review of advances in the preparation and application of polyaniline based thermoset blends and composites

2020

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For several decades, forming blend and composite of polyaniline (PANI) with insulating polymers has been a widely studied research area because of the potential applications of such blends, which have a unique combination of mechanical properties, the processability of conventional polymers and the electrical property of conducting polymers. The current review paper will emphasize PANI composites or blends with thermosetting polymer matrices. The enhanced electro-mechanical properties of the blends and composites depend on the uniform dispersion of the PANI particle in polymer matrix. Therefore, considerable studies have focused on improving the distribution of PANI particles within the thermoset matrices. In this review paper, all the parameters and conditions that influence the surface morphology and application of PANI thermoset blends and composites will be described systematically. Recent progress on PANI based thermoset system with multifunctional ternary composites research will be highlighted in this paper. Furthermore, encouraging applications of different PANI thermoset composites and blends are discussed, such as flame-retardant materials, lightning damage suppression, metal ion removal, anticorrosive coating, electromagnetic shielding, conductive adhesives, and sensing materials.

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Electromechanical deformation sensors based on polyurethane/polyaniline electrospinning nanofibrous mats

Cited by 46 publications

References 29 publications

Decoration of electrical conductive polyurethane‐polyaniline/polyvinyl alcohol matrixes with mussel‐inspired polydopamine for bone tissue engineering

Decoration of electrical conductive polyurethane‐polyaniline/polyvinyl alcohol matrixes with mussel‐inspired polydopamine for bone tissue engineering

Recent Advances and Perspective on Design and Synthesis of Electrode Materials for Electrochemical Sensing of Heavy Metals

A review of advances in the preparation and application of polyaniline based thermoset blends and composites

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