PVDF/AgNP/MXene composites-based near-field electrospun fiber with enhanced piezoelectric performance for self-powered wearable sensors

Pan, Cheng‐Tang; Dutt, Karishma; Kumar, Amit; Kumar, Rahul; Chuang, Cheng-Hsin; Lo, Yi-Ting; Wen, Zhi‐Hong; Wang, Chien-Shu; Kuo, Shiao‐Wei

doi:10.18063/ijb.v9i1.647

Cited by 22 publications

(13 citation statements)

References 78 publications

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“…It is worth noting that PVDF fibers displayed β-crystal form due to a high-voltage electrostatic field during electrospinning (Figure S1a,b). β-PVDF contributes to enhancing the piezoelectric property of triple . The thickness of triple was 199 μm, comprising 24 μm PC, 78 μm PG-Ag, and 97 μm PVDF.…”

Section: Resultsmentioning

confidence: 99%

Accelerated Wound Healing by Electrospun Multifunctional Fibers with Self-Powered Performance

Zhang,

Wang,

Yuan

et al. 2024

Langmuir

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Wound healing has been a persistent clinical challenge for a long time. Electrical stimulation is an effective therapy with the potential to accelerate wound healing. In this work, the self-powered electrospun nanofiber membranes (triples) were constructed as multifunctional wound dressings with electrical stimulation and biochemical capabilities. Triple was composed of a hydrolyzable inner layer with antiseptic and hemostatic chitosan, a hydrophilic core layer loaded with conductive AgNWs, and a hydrophobic outer layer fabricated by self-powered PVDF. Triple exhibited presentable wettability and acceptable moisture permeability. Electrical performance tests indicated that triple can transmit electrical signals formed by the piezoelectric effect to the wound. High antibacterial activities were observed for triple against Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa, with inhibition rates of 96.52, 98.63, and 97.26%, respectively. In vitro cell assays demonstrated that triple cells showed satisfactory proliferation and mobility. A whole blood clotting test showed that triple can enhance hemostasis. The innovative self-powered multifunctional fibers presented in this work offer a promising approach to addressing complications and expediting the promotion of chronic wound healing.

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Section: Resultsmentioning

confidence: 99%

Accelerated Wound Healing by Electrospun Multifunctional Fibers with Self-Powered Performance

Zhang,

Wang,

Yuan

et al. 2024

Langmuir

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“…The most popular way to improve the piezoelectric properties of these materials is doping conductive nanoparticles into this kind of piezoelectric polymer in the form of fibers or films to obtain stronger piezoelectric properties . Incorporating modified materials such as BTO, Gr, CNTs, − ZnO, , Ag, MXene, , Au, and nanoclay into PVDF have proven that they can significantly enhance the piezoelectric constants and electromechanical coupling coefficients of the resulting composites in comparison to those of pure PVDF. Figure B,C shows the enhancement effect of CNT in PVDF and MXene in PVDF-TrFE, the obtained product exhibits superior piezoelectric effects in flexible piezoelectric sensors.…”

Section: Design Of Electrospun Flexible Biomechanical Sensorsmentioning

confidence: 99%

Electrospun Micro/Nanofiber-Based Biomechanical Sensors

Li,

Zhang,

et al. 2023

ACS Appl. Polym. Mater.

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Electrospun micro/nanofibers have gained popularity recently for flexible biomechanical sensors because of their advantages of lightness, compatibility, breathability, mechanical deformability, and function integrability, etc., offering them unprecedented sensitivities and versatilities. With increasing advances in the digital era, existing electrospun flexible sensors are not capable of catering to the demands of multiscenario applications including wearable electronics, interactive interfaces, and real-time continuous health monitoring. To ease and expedite their developments, we thoroughly reviewed their latest progress regarding design, preparation, and optimization. First, a brief overview of the design approaches of electrospun flexible biomechanical sensors based on the working mechanism is highlighted. Then, two kinds of preparation strategies including direct electrospinning and post-treatment-assisted electrospinning are discussed in detail. Further, four means for optimizing the performance and endowing multifunctions to electrospun flexible biomechanical sensors are demonstrated in terms of processing. Accordingly, the challenges and the potential solutions related to this topic are addressed, providing a future direction for the next generation of electrospun flexible biomechanical sensors.

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“…The presence of MXene and Ag NPs increased the electrical conductivity of PVDF and improved piezoelectricity. 130 Another category of piezoelectric materials are inorganic semiconductors including wurtzite families of ZnO, indium nitride (InN), gallium nitride (GaN), cadmium sulfide (CdS), and zinc sulfide (ZnS). 131,132 Of these, ZnO has developed as the most popular semiconductor because of uniaxially oriented variants of ZnO nanostructures with multi-dimensions, including nanowires, nanorods, nanosheets, NPs, nanodiscs, thin films, etc.…”

Section: Piezoelectric Materialsmentioning

confidence: 99%