Piezoelectric Enhancement of Piezoceramic Nanoparticle-Doped PVDF/PCL Core-Sheath Fibers

Feng, Zhangbin; Wang, Ke; Liu, Yukang; Han, Biao; Yu, Deng‐Guang

doi:10.3390/nano13071243

Cited by 12 publications

(9 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The particles are distributed nonuniformly and exhibit a lack of homogeneity in terms of their size. By using the log-normal as a function to fit the particle size distribution histogram, the average particle size for each particle has been calculated. − The expression for the log-normal distribution is given below: f ( D ) = ( 1 2 πσ D ) exp [ − ln 2 false( D D 0 false) 2 σ 2 ] where D represents the average particle size and σ D denotes the standard deviation. Then, D and D 0 represent the mean and median diameter, respectively.…”

Section: Resultsmentioning

confidence: 99%

Nickel-Oxide-Doped Polyvinylidene Fluoride Nanofiber-Based Flexible Triboelectric Nanogenerator for Energy Harvesting and Healthcare Monitoring Applications

Venkatesan,

Arun

2024

ACS Appl. Electron. Mater.

View full text Add to dashboard Cite

Triboelectric nanogenerators (TENGs) are renowned for capturing large-scale unused energy from ambient surroundings. A sustainable TENG can meet future energy demands without contaminating our environment. In the present study, we have synthesized nickel oxide nanoparticles (NiO NPs) via the coprecipitation method. Further, NiO NPs were doped with poly(vinylidene fluoride) (PVDF) (0 to 9 wt % w.r.t. PVDF concentration) to prepare the PVDF-NiO electrospun nanofibrous mat. The output efficiency was calculated in terms of open-circuit voltage (V oc ) and short-circuit current (I sc ). NiO-doped PVDF and thermoplastic polyurethane (TPU)-based TENG generated enhanced performance compared to the pristine PVDF (P-Ni-0)/TPU-based TENG. Among the six combinations of samples fabricated, 7 wt % of NiO-doped PVDF (P-Ni-7)/TPU-based TENG generated the utmost voltage of 252 V, which is almost 22-fold higher than the P-Ni-0/TPU triboelectric pair generated voltage (11.5 V). Similarly, the maximum current achieved was 7.3 μA, which is almost a 9-fold enhancement over the P-Ni-0/TPU triboelectric pair (0.8 μA). The power density of the optimized TENG ((P-Ni-7)/TPU) was 0.86 mW/m 2 , and it was directly used to light up 15 LEDs. Furthermore, a flexible and self-powered P-Ni-7/ TPU-based TENG device was demonstrated for real-time biomechanical motion measurements. Overall, this work disclosed a facile technique for doping NiO NPs into a PVDF matrix, and the fabricated TENG demonstrated efficiency when used for mechanical energy harvesting and sustainable power-supplying systems for miniaturized wearable electronic devices.

show abstract

Section: Resultsmentioning

confidence: 99%

Nickel-Oxide-Doped Polyvinylidene Fluoride Nanofiber-Based Flexible Triboelectric Nanogenerator for Energy Harvesting and Healthcare Monitoring Applications

Venkatesan,

Arun

2024

ACS Appl. Electron. Mater.

View full text Add to dashboard Cite

show abstract

“…Electrospinning is popular for creating nanofibers of polymers. Later, attention shifted to fabricating complex structures and treating unspinnable fluids [ 70 , 71 , 72 ]. Deposited nanofibers can also be organized to prepare functional fiber films [ 73 ].…”

Section: Resultsmentioning

confidence: 99%

A Sequential Electrospinning of a Coaxial and Blending Process for Creating Double-Layer Hybrid Films to Sense Glucose

Yang

Kang

et al. 2023

Sensors

Self Cite

View full text Add to dashboard Cite

This study presents a glucose biosensor based on electrospun core–sheath nanofibers. Two types of film were fabricated using different electrospinning procedures. Film F1 was composed solely of core–sheath nanofibers fabricated using a modified coaxial electrospinning process. Film F2 was a double-layer hybrid film fabricated through a sequential electrospinning and blending process. The bottom layer of F2 comprised core–sheath nanofibers fabricated using a modified process, in which pure polymethacrylate type A (Eudragit L100) was used as the core section and water-soluble lignin (WSL) and phenol were loaded as the sheath section. The top layer of F2 contained glucose oxidase (GOx) and gold nanoparticles, which were distributed throughout the polyvinylpyrrolidone K90 (PVP K90) nanofibers through a single-fluid blending electrospinning process. The study investigated the sequential electrospinning process in detail. The experimental results demonstrated that the F2 hybrid film had a higher degradation efficiency of β-D-glucose than F1, reaching a maximum of over 70% after 12 h within the concentration range of 10–40 mmol/L. The hybrid film F2 is used for colorimetric sensing of β-D-glucose in the range of 1–15 mmol/L. The solution exhibited a color that deepened gradually with an increase in β-D-glucose concentration. Electrospinning is flexible in creating structures for bio-cascade reactions, and the double-layer hybrid film can provide a simple template for developing other sensing nanomaterials.

show abstract

“…(B) Coaxial electrospinning. Reproduced with permission from ref . Available under a CC-BY4.0 license.…”

Section: Fabrication Methodsmentioning

confidence: 99%

Scaffold-Based Poly(Vinylidene Fluoride) and Its Copolymers: Materials, Fabrication Methods, Applications, and Perspectives

Sun,

Gao,

Liu

et al. 2024

ACS Biomater. Sci. Eng.

View full text Add to dashboard Cite

Tissue engineering involves implanting grafts into damaged tissue sites to guide and stimulate the formation of new tissue, which is an important strategy in the field of tissue defect treatment. Scaffolds prepared in vitro meet this requirement and are able to provide a biochemical microenvironment for cell growth, adhesion, and tissue formation. Scaffolds made of piezoelectric materials can apply electrical stimulation to the tissue without an external power source, speeding up the tissue repair process. Among piezoelectric polymers, poly-(vinylidene fluoride) (PVDF) and its copolymers have the largest piezoelectric coefficients and are widely used in biomedical fields, including implanted sensors, drug delivery, and tissue repair. This paper provides a comprehensive overview of PVDF and its copolymers and fillers for manufacturing scaffolds as well as the roles in improving piezoelectric output, bioactivity, and mechanical properties. Then, common fabrication methods are outlined such as 3D printing, electrospinning, solvent casting, and phase separation. In addition, the applications and mechanisms of scaffold-based PVDF in tissue engineering are introduced, such as bone, nerve, muscle, skin, and blood vessel. Finally, challenges, perspectives, and strategies of scaffold-based PVDF and its copolymers in the future are discussed.

show abstract

Piezoelectric Enhancement of Piezoceramic Nanoparticle-Doped PVDF/PCL Core-Sheath Fibers

Cited by 12 publications

References 66 publications

Nickel-Oxide-Doped Polyvinylidene Fluoride Nanofiber-Based Flexible Triboelectric Nanogenerator for Energy Harvesting and Healthcare Monitoring Applications

Nickel-Oxide-Doped Polyvinylidene Fluoride Nanofiber-Based Flexible Triboelectric Nanogenerator for Energy Harvesting and Healthcare Monitoring Applications

A Sequential Electrospinning of a Coaxial and Blending Process for Creating Double-Layer Hybrid Films to Sense Glucose

Scaffold-Based Poly(Vinylidene Fluoride) and Its Copolymers: Materials, Fabrication Methods, Applications, and Perspectives

Contact Info

Product

Resources

About