Wireless Deep Brain Stimulation by Ultrasound-Responsive Molecular Piezoelectric Nanogenerators

Chen, Ping; Cheng, Chi; Yang, Xiaomei; Sha, Tai-ting; Zou, Xianghui; Zhang, Fuchi; Jiang, Wei; Xu, Yan; Cao, Xuebing; You, Yu-Meng; Luo, Zhiqiang

doi:10.1021/acsnano.3c10227

Cited by 7 publications

(1 citation statement)

References 42 publications

(68 reference statements)

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“…In addition, the introduction of a variety of microstructures in piezoelectric materials is also one of the effective ways to improve the piezoelectric performance of PVDF, including surface protruding array structure, porous structure, , etc. For example, Lee showed us a regular trigonal line and pyramid P(VDF-TRFE) PENG; compared with ordinary flat piezoelectric films, the piezoelectric sensitivity of films with micropatterns on the surface is increased, and the output voltage signal is about five times that of the control group .…”

Section: Introductionmentioning

confidence: 99%

Electrospun Polyvinylidene Fluoride Nanogenerator with Hydrophobic Properties and Enhanced Energy Harvesting for Wearable and Wireless Sensing

Zhou,

Xu,

Zhang

et al. 2024

ACS Appl. Electron. Mater.

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Polyvinylidene fluoride (PVDF) has better compliance and mechanical processing performance than traditional piezoelectric ceramic materials and is easy to process and mold. However, this also sacrifices part of the piezoelectric properties of PVDF. Therefore, polymer−piezoelectric ceramic composites were developed to balance this problem. Herein, self-polarized PVDF piezoelectric fibers with stable hydrophobicity and improved piezoelectric characteristics were prepared by using a quick and efficient electrostatic spinning process, specifically, dimethoxymethylvinylsilane-modified BaTiO 3 (M-BTO) as a piezoelectric enhancer, which improved the dispersion of the filler and the piezoelectricity of the composites. As a result, the output voltage and current of the M-BTO/PVDF composite piezoelectric fiber reached 17.2 V and 421.1 nA, respectively. Moreover, the hydrophobic surface of the composite gives it excellent self-cleaning properties. In view of the excellent electromechanical conversion ability of the composites, the prepared piezoelectric nanogenerator can be used to detect different physiological signals in the human body. A simple wireless system is set up to enable the wireless transmission of piezoelectric signals. This study highlights an interfacial modification approach for the preparation of high-performance piezoelectric energy harvesters, providing a practical and potentially useful basis for human−machine interface applications.

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Section: Introductionmentioning

confidence: 99%

Electrospun Polyvinylidene Fluoride Nanogenerator with Hydrophobic Properties and Enhanced Energy Harvesting for Wearable and Wireless Sensing

Zhou,

Xu,

Zhang

et al. 2024

ACS Appl. Electron. Mater.

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Piezoelectric Biomaterials Inspired by Nature for Applications in Biomedicine and Nanotechnology

Chen,

Tong,

Huo

et al. 2024

Advanced Materials

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Bioelectricity provides electrostimulation to regulate cell/tissue behaviors and functions. In the human body, bioelectricity can be generated in electromechanically responsive tissues and organs, as well as biomolecular building blocks that exhibit piezoelectricity, with a phenomenon known as the piezoelectric effect. Inspired by natural bio‐piezoelectric phenomenon, efforts have been devoted to exploiting high‐performance synthetic piezoelectric biomaterials, including molecular materials, polymeric materials, ceramic materials, and composite materials. Notably, piezoelectric biomaterials polarize under mechanical strain and generate electrical potentials, which can be used to fabricate electronic devices. Herein, we propose a review article to summarize the design and research progress of piezoelectric biomaterials and devices toward bionanotechnology. We first introduce the functions of bioelectricity in regulating human electrophysiological activity from cellular to tissue level. Next, recent advances as well as structure‐property relationship of various natural and synthetic piezoelectric biomaterials are provided in detail. In the following part, we systematically classify and discuss the applications of piezoelectric biomaterials in tissue engineering, drug delivery, biosensing, energy harvesting, and catalysis. Finally, the challenges and future prospects of piezoelectric biomaterials are presented. We believe that this review will provide inspiration for the design and development of innovative piezoelectric biomaterials in the fields of biomedicine and nanotechnology.This article is protected by copyright. All rights reserved

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Enhanced output power density of PVDF/LM composite for piezoelectric sensor

Jia,

Luo,

Xue

et al. 2024

Chinese Chemical Letters

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Wireless Deep Brain Stimulation by Ultrasound-Responsive Molecular Piezoelectric Nanogenerators

Cited by 7 publications

References 42 publications

Electrospun Polyvinylidene Fluoride Nanogenerator with Hydrophobic Properties and Enhanced Energy Harvesting for Wearable and Wireless Sensing

Electrospun Polyvinylidene Fluoride Nanogenerator with Hydrophobic Properties and Enhanced Energy Harvesting for Wearable and Wireless Sensing

Piezoelectric Biomaterials Inspired by Nature for Applications in Biomedicine and Nanotechnology

Enhanced output power density of PVDF/LM composite for piezoelectric sensor

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