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Song Z, Cai X, Wang Y, Yang W, Li W. Leveraging Ferroelectret Nanogenerators for Acoustic Applications. MICROMACHINES 2023; 14:2145. [PMID: 38138314 PMCID: PMC10744867 DOI: 10.3390/mi14122145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/12/2023] [Accepted: 11/21/2023] [Indexed: 12/24/2023]
Abstract
Ferroelectret nanogenerator (FENG), renowned for its remarkable electromechanical conversion efficiency and low Young's modulus, has gained significant attention in various acoustic applications. The increasing interest is attributed to the crucial role acoustic devices play in our daily lives. This paper provides a comprehensive review of the advancements made in using FENG for acoustic applications. It elaborates on the operational mechanism of FENG in acoustics, with a special focus on comparing the influence of different fabrication materials and techniques on its properties. This review categorizes acoustic applications of FENG into three primary areas: acoustic sensing, acoustic actuation, and acoustic energy harvesting. The detailed descriptions of FENG's implementations in these areas are provided, and potential directions and challenges for further development are outlined. By demonstrating the wide range of potential applications for FENG, it is shown that FENG can be adapted to meet different individual needs.
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Affiliation(s)
- Ziling Song
- College of Integrated Circuit Science and Engineering, Nanjing University of Posts and Telecommunications, 9 Wenyuan Rd., Nanjing 210046, China; (Z.S.); (X.C.); (Y.W.)
| | - Xianfa Cai
- College of Integrated Circuit Science and Engineering, Nanjing University of Posts and Telecommunications, 9 Wenyuan Rd., Nanjing 210046, China; (Z.S.); (X.C.); (Y.W.)
| | - Yiqin Wang
- College of Integrated Circuit Science and Engineering, Nanjing University of Posts and Telecommunications, 9 Wenyuan Rd., Nanjing 210046, China; (Z.S.); (X.C.); (Y.W.)
| | - Wenyu Yang
- School of Mechanical Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Rd., Wuhan 430074, China;
| | - Wei Li
- College of Integrated Circuit Science and Engineering, Nanjing University of Posts and Telecommunications, 9 Wenyuan Rd., Nanjing 210046, China; (Z.S.); (X.C.); (Y.W.)
- Department of Mechanical Engineering, University of Vermont, 33 Colchester Ave., Burlington, VT 05405, USA
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Zhang X, Zhao J, Xie P, Wang S. Biomedical Applications of Electrets: Recent Advance and Future Perspectives. J Funct Biomater 2023; 14:320. [PMID: 37367284 DOI: 10.3390/jfb14060320] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 05/23/2023] [Accepted: 06/08/2023] [Indexed: 06/28/2023] Open
Abstract
Recently, electrical stimulation, as a non-pharmacological physical stimulus, has been widely exploited in biomedical and clinical applications due to its ability to significantly enhance cell proliferation and differentiation. As a kind of dielectric material with permanent polarization characteristics, electrets have demonstrated tremendous potential in this field owing to their merits of low cost, stable performance, and excellent biocompatibility. This review provides a comprehensive summary of the recent advances in electrets and their biomedical applications. We first provide a brief introduction to the development of electrets, as well as typical materials and fabrication methods. Subsequently, we systematically describe the recent advances of electrets in biomedical applications, including bone regeneration, wound healing, nerve regeneration, drug delivery, and wearable electronics. Finally, the present challenges and opportunities have also been discussed in this emerging field. This review is anticipated to provide state-of-the-art insights on the electrical stimulation-related applications of electrets.
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Affiliation(s)
- Xinyuan Zhang
- School of Health Science and Engineering, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, China
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, No. 168 Changhai Road, Shanghai 200433, China
| | - Jiulong Zhao
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, No. 168 Changhai Road, Shanghai 200433, China
| | - Pei Xie
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, No. 168 Changhai Road, Shanghai 200433, China
| | - Shige Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, China
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Li W, Cao Y, Wang C, Sepúlveda N. Ferroelectret nanogenerators for the development of bioengineering systems. CELL REPORTS. PHYSICAL SCIENCE 2023; 4:101388. [PMID: 37693856 PMCID: PMC10487350 DOI: 10.1016/j.xcrp.2023.101388] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Bioengineering devices and systems will become a practical and versatile technology in society when sustainability issues, primarily pertaining to their efficiency, sustainability, and human-machine interaction, are fully addressed. It has become evident that technological paths should not rely on a single operation mechanism but instead on holistic methodologies that integrate different phenomena and approaches with complementary advantages. As an intriguing invention, the ferroelectret nanogenerator (FENG) has emerged with promising potential in various fields of bioengineering. Utilizing the changes in the engineered macro-scale electric dipoles to create displacement current (and vice versa), FENGs have been demonstrated to be a compelling strategy for bidirectional conversion of energy between the electrical and mechanical domains. Here we provide a comprehensive overview of the latest advancements in integrating FENGs in bioengineering systems, focusing on the applications with the most potential and the underlying current constraints.
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Affiliation(s)
- Wei Li
- Department of Mechanical Engineering, University of Vermont, Burlington, VT 05405, USA
- College of Integrated Circuit Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing, Jiangsu 210023, China
| | - Yunqi Cao
- State Key Laboratory of Industrial Control Technology, College of Control Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Chuan Wang
- Electrical and Systems Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
- Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Nelson Sepúlveda
- Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, USA
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Llovera-Segovia P, Ortega-Braña G, Fuster-Roig V, Quijano-López A. Charging of Piezoelectric Cellular Polypropylene Film by Means of a Series Dielectric Layer. Polymers (Basel) 2021; 13:polym13030333. [PMID: 33494338 PMCID: PMC7865647 DOI: 10.3390/polym13030333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/18/2021] [Accepted: 01/18/2021] [Indexed: 11/16/2022] Open
Abstract
Piezoelectric polymer cellular films have been developed and improved in the past decades. These piezoelectric materials are based on the polarization of the internal cells by means of induced discharges in the gas inside the cells. Internal discharges are driven by an external applied electric field. With this polarization method, cellular polypropylene (PP) polymers exhibit a high piezoelectric coefficient d33 and have been investigated because of their low dielectric polarization, high resistivity, and flexibility. Charging polymers foams is normally obtained by applying a corona discharge to the surface with a single tip electrode-plane arrangement or a triode electrode, which consists of a tip electrode-plane structure with a controlled potential intermediate mesh. Corona charging allows the surface potential of the sample to rise without breakdown or surface flashover. A charging method has been developed without corona discharge, and this has provided good results. In our work, a method has been developed to polarize polypropylene foams by applying an insulated high-voltage electrode on the surface of the sample. The dielectric layer in series with the sample allows for a high internal electric field to be reached in the sample but avoids dielectric breakdown of the sample. The distribution of the electric field between the sample and the dielectric barrier has been calculated. Experimental results with three different electrodes present good outcome in agreement with the calculations. High d33 constants of about 880 pC/N have been obtained. Mapping of the d33 constant on the surface has also been carried out showing good homogeneity on the area under the electrode.
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Affiliation(s)
- Pedro Llovera-Segovia
- Instituto de Tecnología Eléctrica, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; (V.F.-R.); (A.Q.-L.)
- Instituto Tecnológico de la Energía (ITE), Carrer de Juan de la Cierva y Codorniu 24, Paterna, 46980 Valencia, Spain
- Correspondence:
| | | | - Vicente Fuster-Roig
- Instituto de Tecnología Eléctrica, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; (V.F.-R.); (A.Q.-L.)
- Instituto Tecnológico de la Energía (ITE), Carrer de Juan de la Cierva y Codorniu 24, Paterna, 46980 Valencia, Spain
| | - Alfredo Quijano-López
- Instituto de Tecnología Eléctrica, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; (V.F.-R.); (A.Q.-L.)
- Instituto Tecnológico de la Energía (ITE), Carrer de Juan de la Cierva y Codorniu 24, Paterna, 46980 Valencia, Spain
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Cao Y, Figueroa J, Pastrana JJ, Li W, Chen Z, Wang ZL, Sepúlveda N. Flexible Ferroelectret Polymer for Self-Powering Devices and Energy Storage Systems. ACS APPLIED MATERIALS & INTERFACES 2019; 11:17400-17409. [PMID: 31002218 DOI: 10.1021/acsami.9b02233] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Applying flexible materials for energy scavenging from ambient mechanical vibrations is a clean energy solution that can help alleviate electrical power demands in portable devices and wearable electronics. This work presents fundamental studies on a flexible ferroelectret polymer with a strong piezoelectric effect and its interface with self-powered and energy storage systems. A single-layered device with a thickness of 80 μm was used for characterizing the device's output voltage, current, transferred charge, and energy conversion efficiency. The potential capability of harvesting mechanical energy and delivering to system load is demonstrated by integrating the device into a fully integrated power management system. The theory for determining the harvested energy that is ultimately delivered to external electronic loads (or stored in a battery) is discussed. The maximum power delivery is found to be for a 600 MΩ load, which results in a device power density of 14.0 W/m3 for input mechanical forces with a frequency around 2 Hz.
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Affiliation(s)
- Yunqi Cao
- Department of Electrical and Computer Engineering , Michigan State University , East Lansing , Michigan 48824 , United States
| | - José Figueroa
- Department of Electrical and Computer Engineering , Michigan State University , East Lansing , Michigan 48824 , United States
| | - Juan J Pastrana
- Department of Electrical and Computer Engineering , Michigan State University , East Lansing , Michigan 48824 , United States
| | - Wei Li
- Department of Electrical Engineering and Computer Sciences , University of California Berkeley , Berkeley , California 94720 , United States
| | - Zhiqiang Chen
- School of Mechano-Electronic Engineering , Xidian University , Xi'an , Shaanxi 710071 , China
| | - Zhong Lin Wang
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Nelson Sepúlveda
- Department of Electrical and Computer Engineering , Michigan State University , East Lansing , Michigan 48824 , United States
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