Effect of fabrication technique on the crystalline phase and electrical properties of PVDF films

Mahato, Pradeep Kumar; Seal, A. K.; Garain, Samiran; Sen, Shrabanee

doi:10.1515/msp-2015-0020

Cited by 41 publications

(26 citation statements)

References 12 publications

(15 reference statements)

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“…The XRD patterns of pure PVDF nanofibers and PVDF nanofibers including Au NPs are shown in Figure . The 18° (0 2 0) and 20° (2 0 0) peaks correspond to α‐phase and stand for the β‐phase crystalline structure, respectively as indicated in Figure . Thus, the electrospun PVDF nanofibers are determined as the combination of two crystalline types.…”

Section: Resultsmentioning

confidence: 99%

“…The FTIR spectra of neat PVDF and PVDF/Au NPs composite nanofibers mats are demonstrated in Figure . The most significant peaks corresponding to α‐ and β‐phases are indicated on the spectrum . It is known that the piezoelectric properties come from the β‐phase of the PVDF .…”

Section: Resultsmentioning

confidence: 99%

“…The 188 (0 2 0) and 208 (2 0 0) peaks correspond to a-phase and stand for the b-phase crystalline structure, respectively as indicated in Figure 6. 46 Thus, the electrospun PVDF nanofibers are determined as the combination of two crystalline types. As illustrated in Figure 6, intensities of the characteristic peaks of a and b-phases are increased around 15% and 36%, respectively, due to the presence of An NPs.…”

Section: Morphological Studiesmentioning

confidence: 99%

“…The most significant peaks corresponding to aand b-phases are indicated on the spectrum. 46 It is known that the piezoelectric properties come from the b-phase of the PVDF. 47 As can be seen, the b-phase which is present in the PVDF nanofibers is enhanced in the presence of Au NPs.…”

Section: Morphological Studiesmentioning

confidence: 99%

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Piezoelectric electrospun nanocomposite comprising Au NPs/PVDF for nerve tissue engineering

Motamedi

Mirzadeh

Hajiesmaeilbaigi

et al. 2017

J Biomedical Materials Res

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In this study, gold nanoparticles/Polyvinylidenefluoride (PVDF) composite electrospun mat with enhanced piezoelectricity were fabricated and characterized. Gold colloidal nanoparticles (Au NPs) were prepared via laser ablation of metallic targets in liquid media. The active Q-switched Nd:YAG laser was used as an irradiation source. Then, PVDF was dissolved in Au NPs colloidal solution at 30% wt for the synthesis of Au NPs/PVDF composite nanofibers by electrospinning. The optical absorbance spectra of Au NPS and the polymeric solutions were obtained by the UV-Visible spectroscopy. Moreover, the morphology of Au NPS, nanostructures of fibers and diameter size distribution of nanofibers were analyzed by Scanning Electron Microscopy, Field Emission Scanning Electron Microscopy, and Transmitted Electron Microscopy methods. The crystallinity and piezoelectricity of PVDF and Au NPs/PVDF composite nanofibers mats were measured by X-Ray Diffraction and Fourier Transform Infrared methods. Subsequently, in vitro cytocompatibility was evaluated by MTT assay and the attachment and morphology of PC-12 cells cultured on scaffolds were studied. It was found that laser ablated Au NPs can be used in electrospun nanofibers of PVDF with adequate structural properties and increase piezoelectricity of nanofibers which might be suitable for applying as nerve tissue engineering scaffolds. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 1984-1993, 2017.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Morphological Studiesmentioning

confidence: 99%

Section: Morphological Studiesmentioning

confidence: 99%

See 2 more Smart Citations

Piezoelectric electrospun nanocomposite comprising Au NPs/PVDF for nerve tissue engineering

Motamedi

Mirzadeh

Hajiesmaeilbaigi

et al. 2017

J Biomedical Materials Res

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“…Polyvinylidene fluoride (PVDF) is a semi-crystalline material with CH 2 -CF 2 repeating unit. Due to its good piezoelectric properties (Mahato et al, 2015), PVDF has been widely studied and applied as a matrix of composites in the field of wave absorption (Meng et al, 2014;Naseer et al, 2019;Zhao B. et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Preparation and Microwave Absorption Properties of NixSy/PVDF Nanocomposites

Gao

et al. 2020

Front. Mater.

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Octahedral Ni x S y nanoparticles and Ni x S y /PVDF nanocomposites are successfully prepared by solvothermal method. The electromagnetic absorption performance of Ni x S y /PVDF with different filler content is investigated in the range of 2-18 GHz. An optimal reflection loss value of −32.75 dB at 10.48 GHz is achieved for the filler content of 20 wt%, and the bandwidth <−10 dB can reach up to 4.48 GHz with a thickness of 3 mm. Furthermore, fundamental mechanisms of electromagnetic absorbing is discussed, indicating that the interface polarization, electric dipole polarization, Debye relaxation and impedance matching are the main factors affecting the absorption performance of Ni x S y /PVDF composites.

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Electroactive Biomaterials Regulate the Electrophysiological Microenvironment to Promote Bone and Cartilage Tissue Regeneration

Chen,

Yang,

Cai

et al. 2024

Adv Funct Materials

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The incidence of large bone and articular cartilage defects caused by traumatic injury is increasing worldwide; the tissue regeneration process for these injuries is lengthy due to limited self‐healing ability. Endogenous bioelectrical phenomenon has been well recognized to play an important role in bone and cartilage homeostasis and regeneration. Studies have reported that electrical stimulation (ES) can effectively regulate various biological processes and holds promise as an external intervention to enhance the synthesis of the extracellular matrix, thereby accelerating the process of bone and cartilage regeneration. Hence, electroactive biomaterials have been considered a biomimetic approach to ensure functional recovery by integrating various physiological signals, including electrical, biochemical, and mechanical signals. This review will discuss the role of endogenous bioelectricity in bone and cartilage tissue, as well as the effects of ES on cellular behaviors. Then, recent advances in electroactive materials and their applications in bone and cartilage tissue regeneration are systematically overviewed, with a focus on their advantages and disadvantages as tissue repair materials and performances in the modulation of cell fate. Finally, the significance of mimicking the electrophysiological microenvironment of target tissue is emphasized and future development challenges of electroactive biomaterials for bone and cartilage repair strategies are proposed.

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Effect of fabrication technique on the crystalline phase and electrical properties of PVDF films

Cited by 41 publications

References 12 publications

Piezoelectric electrospun nanocomposite comprising Au NPs/PVDF for nerve tissue engineering

Piezoelectric electrospun nanocomposite comprising Au NPs/PVDF for nerve tissue engineering

Preparation and Microwave Absorption Properties of NixSy/PVDF Nanocomposites

Electroactive Biomaterials Regulate the Electrophysiological Microenvironment to Promote Bone and Cartilage Tissue Regeneration

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