Computational modeling of finite deformation piezoelectric material behavior coupling transient electrical and mechanical fields

Yaghmaie, Reza; Ghosh, Somnath

doi:10.1016/j.jcp.2018.06.070

Cited by 8 publications

(2 citation statements)

References 34 publications

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“…where d ij is the piezoelectric coefficients; ϵ i is the dielectric constant; and c ijkl is the elastic constant. 180 Research on improving the environmental adaptability of piezoelectric materials, such as material modification and structural optimization to enhance stability under high temper-ature and high humidity conditions, also provides beneficial references for the improvement of electret materials. 181 By drawing on these strategies, electret materials with better charge stability can be developed, which play a key role in various highperformance sensors and energy-harvesting devices.…”

Section: Bioactive Electret Materialmentioning

confidence: 99%

“…The electric field behavior of piezoelectric materials can be described by piezoelectric equations that establish the relationship among stress T ij , strain S ij , electric field E k , and electric displacement D i D i = d i j · S j + ϵ i · E i T i j = d i j k · E k + c i j k l · S k l where d ij is the piezoelectric coefficients; ϵ i is the dielectric constant; and c ijkl is the elastic constant …”

Section: Bioelectret Materials and Their Classificationmentioning

confidence: 99%

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Bioelectret Materials and Their Bioelectric Effects for Tissue Repair: A Review

Li,

Xie,

Liu

et al. 2024

ACS Appl. Mater. Interfaces

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Biophysical and clinical medical studies have confirmed that biological tissue lesions and trauma are related to the damage of an intrinsic electret (i.e., endogenous electric field), such as wound healing, embryonic development, the occurrence of various diseases, immune regulation, tissue regeneration, and cancer metastasis. As exogenous electrical signals, such as conductivity, piezoelectricity, ferroelectricity, and pyroelectricity, bioelectroactives can regulate the endogenous electric field, thus controlling the function of cells and promoting the repair and regeneration of tissues. Materials, once polarized, can harness their inherent polarized static electric fields to generate an electric field through direct stimulation or indirect interactions facilitated by physical signals, such as friction, ultrasound, or mechanical stimulation. The interaction with the biological microenvironment allows for the regulation and compensation of polarized electric signals in damaged tissue microenvironments, leading to tissue regeneration and repair. The technique shows great promise for applications in the field of tissue regeneration. In this paper, the generation and change of the endogenous electric field and the regulation of exogenous electroactive substances are expounded, and the latest research progress of the electret and its biological effects in the field of tissue repair include bone repair, nerve repair, drug penetration promotion, wound healing, etc. Finally, the opportunities and challenges of electret materials in tissue repair were summarized. Exploring the research and development of new polarized materials and the mechanism of regulating endogenous electric field changes may provide new insights and innovative methods for tissue repair and disease treatment in biological applications.

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Section: Bioactive Electret Materialmentioning

confidence: 99%