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Sahoo S, Mukherjee S, Sharma VB, Hernández WI, Garcia-Castro AC, Zaręba JK, Kabra D, Vaitheeswaran G, Boomishankar R. A Chiral B-N Adduct as a New Frontier in Ferroelectrics and Piezoelectric Energy Harvesting. Angew Chem Int Ed Engl 2024; 63:e202400366. [PMID: 38446492 DOI: 10.1002/anie.202400366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 02/14/2024] [Accepted: 03/06/2024] [Indexed: 03/07/2024]
Abstract
Within the burgeoning field of electronic materials, B-N Lewis acid-base pairs, distinguished by their partial charge distribution across boron and nitrogen centers, represent an underexplored class with significant potential. These materials exhibit inherent dipoles and are excellent candidates for ferroelectricity. However, the challenge lies in achieving the optimal combination of hard-soft acid-base pairs to yield B-N adducts with stable dipoles. Herein, we present an enantiomeric pair of B-N adducts [R/SC6H5CH(CH3)NH2BF3] (R/SMBA-BF3) crystallizing in the polar monoclinic P21 space group. The ferroelectric measurements on RMBA-BF3 gave a rectangular P-E hysteresis loop with a remnant polarization of 7.65 μC cm-2, a value that aligns with the polarization derived from the extensive density-functional theory computations. The PFM studies on the drop-casted film of RMBA-BF3 further corroborate the existence of ferroelectric domains, displaying characteristic amplitude-bias butterfly and phase-bias hysteresis loops. The piezoelectric nature of the RMBA-BF3 was confirmed by its direct piezoelectric coefficient (d33) value of 3.5 pC N-1 for its pellet. The piezoelectric energy harvesting applications on the sandwich devices fabricated from the as-made crystals of RMBA-BF3 gave an open circuit voltage (VPP) of 6.2 V. This work thus underscores the untapped potential of B-N adducts in the field of piezoelectric energy harvesting.
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Affiliation(s)
- Supriya Sahoo
- Department of Chemistry and Centre for Energy Science, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Supratik Mukherjee
- Advanced Centre of Research in High Energy Materials (ACRHEM), University of Hyderabad, Prof. C.R. Rao Road, Gachibowli, Hyderabad, 500046, Telangana, India
| | - Vijay Bhan Sharma
- Department of Physics and Center for Research in Nanotechnology and Sciences, Indian Institute of Technology, Mumbai, 400076, India
| | - Wilfredo Ibarra Hernández
- Facultad de Ingeniería, Benemérita Universidad Autónoma de Puebla, Apartado Postal J-39, 72570, Puebla, Puebla, México
| | | | - Jan K Zaręba
- Institute of Advanced Materials, Wrocław University of Science and Technology, 50-370, Wrocław, Poland
| | - Dinesh Kabra
- Department of Physics and Center for Research in Nanotechnology and Sciences, Indian Institute of Technology, Mumbai, 400076, India
| | - Ganapathy Vaitheeswaran
- School of Physics, University of Hyderabad, Hyderabad, Prof. C.R. Rao Road, Gachibowli, Hyderabad, Telangana, 500046, India
| | - Ramamoorthy Boomishankar
- Department of Chemistry and Centre for Energy Science, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Pune, 411008, India
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2
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Staaf H, Matsson S, Sepheri S, Köhler E, Daoud K, Ahrentorp F, Jonasson C, Folkow P, Ryynänen L, Penttila M, Rusu C. Simulated and measured piezoelectric energy harvesting of dynamic load in tires. Heliyon 2024; 10:e29043. [PMID: 38601550 PMCID: PMC11004872 DOI: 10.1016/j.heliyon.2024.e29043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 03/28/2024] [Accepted: 03/28/2024] [Indexed: 04/12/2024] Open
Abstract
From 2007 in US and from 2022 in EU it is mandatory to use TPMS monitoring in new cars. Sensors mounted in tires require a continuous power supply, which currently only is from batteries. Piezoelectric energy harvesting is a promising technology to harvest energy from tire movement and deformation to prolong usage of batteries and even avoid them inside tires. This study presents a simpler method to simultaneous model the tire deformation and piezoelectric harvester performance by using a new simulation approach - dynamic bending zone. For this, angular and initial velocities were used for rolling motion, while angled polarization was introduced in the model for the piezoelectric material to generate correct voltage from tire deformation. We combined this numerical simulation in COMSOL Multiphysics with real-life measurements of electrical output of a piezoelectric energy harvester that was mounted onto a tire. This modelling approach allowed for 10 times decrease in simulation time as well as simpler investigation of systems parameters influencing the output power. By using experimental data, the simulation could be fine-tuned for material properties and for easier extrapolation of tire deformation with output harvested energy from simulations done at low velocity to the high velocity experimental data.
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Affiliation(s)
- Henrik Staaf
- RISE Research Institutes of Sweden, Smart Hardware Dept, Gothenburg, Sweden
| | - Simon Matsson
- RISE Research Institutes of Sweden, Smart Hardware Dept, Gothenburg, Sweden
| | - Sobhan Sepheri
- RISE Research Institutes of Sweden, Smart Hardware Dept, Gothenburg, Sweden
| | - Elof Köhler
- RISE Research Institutes of Sweden, Smart Hardware Dept, Gothenburg, Sweden
| | - Kaies Daoud
- RISE Research Institutes of Sweden, Smart Hardware Dept, Gothenburg, Sweden
- Breas AB – Sweden, Mölnlycke, Sweden
| | - Fredrik Ahrentorp
- RISE Research Institutes of Sweden, Smart Hardware Dept, Gothenburg, Sweden
| | - Christian Jonasson
- RISE Research Institutes of Sweden, Smart Hardware Dept, Gothenburg, Sweden
| | - Peter Folkow
- Chalmers University of Technology, Division Dynamics, Gothenburg, Sweden
| | | | | | - Cristina Rusu
- RISE Research Institutes of Sweden, Smart Hardware Dept, Gothenburg, Sweden
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Sun W, Gao C, Liu H, Zhang Y, Guo Z, Lu C, Qiao H, Yang Z, Jin A, Chen J, Dai Q, Liu Y. Scaffold-Based Poly(Vinylidene Fluoride) and Its Copolymers: Materials, Fabrication Methods, Applications, and Perspectives. ACS Biomater Sci Eng 2024. [PMID: 38621173 DOI: 10.1021/acsbiomaterials.3c01989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
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.
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Affiliation(s)
- Wenbin Sun
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China
| | - Chuang Gao
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China
| | - Huazhen Liu
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China
- School of Medicine, Shanghai University, Shanghai 200444, China
| | - Yi Zhang
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China
| | - Zilong Guo
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China
| | - Chunxiang Lu
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China
| | - Hao Qiao
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China
| | - Zhiqiang Yang
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China
| | - Aoxiang Jin
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China
| | - Jianan Chen
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China
| | - Qiqi Dai
- School of Medicine, Shanghai University, Shanghai 200444, China
| | - Yuanyuan Liu
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China
- School of Medicine, Shanghai University, Shanghai 200444, China
- Wenzhou Institute of Shanghai University, Wenzhou, 325000, China
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4
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Xiong S, Zeng H, Tang R, Abdullah Al-Dhabi N, Li W, Zhou Z, Li L, Tang W, Gong D, Deng Y. l-Cysteine and barium titanate co-modified enteromorpha biochar as effective peroxymonosulfate activator for atrazine treatment. Bioresour Technol 2024; 396:130461. [PMID: 38369082 DOI: 10.1016/j.biortech.2024.130461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/13/2024] [Accepted: 02/15/2024] [Indexed: 02/20/2024]
Abstract
In this study, pyrolysis and hydrothermal methods were used for Enteromorpha biochar that was co-modified with l-cysteine and barium titanate (LBCBa). It has great environmental tolerance and can remove 93.0 % of atrazine (ATZ, 10 mg·L-1) within 60 mins of ultrasonic treatment. The enhanced hydrophilicity, electron-donating capability, and piezoelectricity of LBCBa are considered to induce excellent performance. The apparent reaction rate of the LBCBa-2/PMS/ATZ system with ultrasonic was 2.87 times that without ultrasonic. The density functional theory points out that, introducing l-cysteine to carbon edges improves the adsorption of ATZ and peroxymonosulfate (PMS), making PMS easier to activate. This work offered unique insights for fabricating effective catalysts and demonstrated the combination of hydrophilic functional groups and piezoelectricity in improving catalytic performance and stability.
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Affiliation(s)
- Sheng Xiong
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Hao Zeng
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Rongdi Tang
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China; College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha 410082, China
| | - Naif Abdullah Al-Dhabi
- Department of Botany and Microbiology, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Kingdom of Saudi Arabia
| | - Wenbo Li
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Zhanpeng Zhou
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Ling Li
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Wangwang Tang
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha 410082, China
| | - Daoxin Gong
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Yaocheng Deng
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China.
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5
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Chen X, Sun D, He Z, Kang S, Miao Y, Li Y. Ferrite bismuth-based nanomaterials: From ferroelectric and piezoelectric properties to nanomedicine applications. Colloids Surf B Biointerfaces 2024; 233:113642. [PMID: 37995631 DOI: 10.1016/j.colsurfb.2023.113642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 10/25/2023] [Accepted: 11/07/2023] [Indexed: 11/25/2023]
Abstract
Bismuth ferrite (BiFeO3), a perovskite-type oxide, possesses unique morphology and multiferroicity, rendering it highly versatile for various applications. Recent investigations have demonstrated that BiFeO3 exhibits enhanced Fenton-like and photocatalytic behaviors, coupled with its piezoelectric/ferroelectric properties. BiFeO3 can catalytically generate highly oxidative reactive oxygen species (ROS) when exposed to hydrogen peroxide or light irradiation. Consequently, bismuth ferrite-based nanomaterials have emerged as promising candidates for various biomedical applications. However, the precise fabrication of BiFeO3-based materials with controllable features and applications in diverse biomedical scenarios remains a formidable challenge. In this review, we initially summarize the Fenton reaction property, ferroelectric, and piezoelectric properties of BiFeO3. We further survey the current methodologies for synthesizing BiFeO3 nanomaterials with diverse morphologies. Subsequently, we explore the effects of element doping and heterojunction formation on enhancing the photocatalytic activity of BiFeO3, focusing on microstructural, electronic band structure, and modification approaches. Additionally, we provide an overview of the recent advancements of BiFeO3-based nanomaterials in biomedicine. Finally, we discuss the prevailing obstacles and prospects of BiFeO3 for biomedical applications, offering valuable insights and recommendations for forthcoming research endeavors.
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Affiliation(s)
- Xingzhou Chen
- School of Materials and Chemistry, Institute of Bismuth Science, Shanghai Collaborative Innovation Center of Energy Therapy for Tumors, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Di Sun
- Department of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital & Shanghai Institute of Ultrasound in Medicine, Shanghai 200233, China
| | - Zongyan He
- School of Materials and Chemistry, Institute of Bismuth Science, Shanghai Collaborative Innovation Center of Energy Therapy for Tumors, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Shifei Kang
- Institute of Photochemistry and Photofunctional Materials (IPPM), University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yuqing Miao
- School of Materials and Chemistry, Institute of Bismuth Science, Shanghai Collaborative Innovation Center of Energy Therapy for Tumors, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yuhao Li
- School of Materials and Chemistry, Institute of Bismuth Science, Shanghai Collaborative Innovation Center of Energy Therapy for Tumors, University of Shanghai for Science and Technology, Shanghai 200093, China.
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6
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Trellu H, Le Scornec J, Leray N, Moreau C, Villares A, Cathala B, Guiffard B. Flexoelectric and piezoelectric effects in micro- and nanocellulose films. Carbohydr Polym 2023; 321:121305. [PMID: 37739535 DOI: 10.1016/j.carbpol.2023.121305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/20/2023] [Accepted: 08/14/2023] [Indexed: 09/24/2023]
Abstract
In this work, we evaluated the flexoelectric and piezoelectric contributions to the overall macroscopic polarization in cellulose films. To this end, the flexoelectric μ31 and transverse effective piezoelectric e31,f coefficients of cellulose films were determined using cantilever beam bending. The experiments were based on theoretical developments allowing to separate the flexoelectric from the piezoelectric contribution, represented by an effective flexoelectric coefficient, μeff, depending on both e31,f and μ31. Five free-standing and stainless steel/cellulose bilayer films were prepared from cellulose showing different morphologies and surface charge degrees: two almost neutral cellulose microfibers (CMF) and three (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO)-oxidized cellulose micro- (TCMF) and nanofibers (TCNF) bearing negative charged groups on the surface. The dielectric properties of the films indicated a low dielectric constant for unmodified CMF, and a huge increase for TEMPO-oxidized samples, which were up to 9 times higher than poly(vinylidene fluoride)-based polymers. TEMPO-oxidized cellulose films exhibited the largest flexoelectric coefficients (almost 7 times higher than those of synthetic polymer dielectrics), which evidenced that the presence of polar groups and surface charge boosted both flexoelectricity and piezoelectricity in unpoled cellulose films. These findings pave the way towards sustainable cellulose-based curvature sensors with large effective flexoelectric coefficients, without the need of preliminary energy consuming poling step.
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Affiliation(s)
- Hanna Trellu
- Nantes Univ, CNRS, IETR UMR 6164, F-44000 Nantes, France; UR1268 BIA, INRAE, F-44316 Nantes, France
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7
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Triana-Camacho DA, Ospina-Ospina R, Quintero-Orozco JH. Method for fabricating self-powered cement sensors based on gold nanoparticles. MethodsX 2023; 11:102280. [PMID: 37448953 PMCID: PMC10336779 DOI: 10.1016/j.mex.2023.102280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 07/04/2023] [Indexed: 07/18/2023] Open
Abstract
Nowadays, cement industry researchers are working hard to develop cement sensors based on nanocomposites because they can be used to develop intelligent and sustainable civil structures, self-powered, self-healing, or self-monitoring. In this light, this paper shows a methodology to obtain piezoelectric cement sensors, which produce enough energy not to require an external power source in sensing-strain applications. Mainly, two proposed experimental procedures increased the piezoelectric properties of these cement-based composites: add gold nanoparticles in the proper concentrations and apply a constant electric field during the curing stage. Firstly, the gold nanoparticles were obtained through a pulsed laser ablation system, and their particle size distribution was measured with a particle analyzer Litesizer 500 from Anton Paar, and their morphology was corroborated using a scanning electron microscope. Two concentrations (442 ppm and 658 ppm) of gold nanoparticles were obtained by changing the total ablation time. Next, we fabricated the cement sensors as described by ASTM standards C39-C39M. Hence, the cement was hand mixed with a water-to-cement ratio (w/c) of 0.47 for then poured on cylindrical molds saving the proportions recommended by the ASTM standard; in this stage, the gold nanoparticles were already part of the water ratio. Then, the cement sensors were cured under an external electric field and dried for 24 hours more in an oven to be finally ready for electromechanical characterization. Meanwhile, the electric response in altern current and the piezoelectric behavior were corroborated through electrical impedance spectroscopy and open circuit potential measurements, respectively. The piezoelectric behavior was obtained when a compressive strength was applied to the sensor, and the generated voltage was simultaneously measured. Finally, the electrical and mechanical characterization measurements were processed and analyzed using Python scripts.•The particle size and the families amount of Au NPs are affected by the ablation time.•The correct proportion of Au NPs increases the inherent piezoelectricity of cement paste.•The piezoelectric response can be addressed by coupling electric and mechanical tests.
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Li YQ, Zhang X, Shang X, He QW, Tang DS, Wang XC, Duan CG. Magnetic and Ferroelectric Manipulation of Valley Physics in Janus Piezoelectric Materials. Nano Lett 2023; 23:10013-10020. [PMID: 37856232 DOI: 10.1021/acs.nanolett.3c03238] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
The realization of multiferroic materials offers the possibility of multifunctional electronic device design. However, the coupling between the multiferroicity and piezoelectricity in Janus materials is rarely reported. In this study, we propose a mechanism for manipulating valley physics by magnetization reversing and ferroelectric switching in multiferroic and piezoelectric material. The ferromagnetic VSiGeP4 monolayer exhibits a large valley polarization up to 100 meV, which can be effectively operated by reversing magnetization. Interestingly, the antiferromagnetic VSiGeP4 bilayers with AB and BA stacking configurations allow the coexistence of valley polarization and ferroelectricity, supporting the proposed strategy for manipulating valley physics via ferroelectric switching and interlayer sliding. In addition, the VSiGeP4 monolayer contains remarkable tunable piezoelectricity regulated by electron correlation U. This study proposes a feasible idea for regulating valley polarization and a general design idea for multifunctional devices with multiferroic and piezoelectric properties, facilitating the miniaturization and integration of nanodevices.
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Affiliation(s)
- Yun-Qin Li
- Key Laboratory of Polar Materials and Devices (MOE), School of Physics and Electronic Science and Shanghai Center of Brain-inspired Intelligent Materials and Devices, East China Normal University, Shanghai 200241, China
| | - Xian Zhang
- Henan Key Laboratory of Photoelectric Energy Storage Materials and Applications, School of Physics and Engineering, Henan University of Science and Technology, Luoyang 471023, China
| | - Xiao Shang
- Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China
| | - Qi-Wen He
- Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China
| | - Dai-Song Tang
- Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China
| | - Xiao-Chun Wang
- School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252000, China
- Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China
| | - Chun-Gang Duan
- Key Laboratory of Polar Materials and Devices (MOE), School of Physics and Electronic Science and Shanghai Center of Brain-inspired Intelligent Materials and Devices, East China Normal University, Shanghai 200241, China
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Hall TAG, Theodoridis K, Kechagias S, Kohli N, Denonville C, Rørvik PM, Cegla F, van Arkel RJ. Electromechanical and biological evaluations of 0.94Bi 0.5Na 0.5TiO 3-0.06BaTiO 3 as a lead-free piezoceramic for implantable bioelectronics. Biomater Adv 2023; 154:213590. [PMID: 37598437 DOI: 10.1016/j.bioadv.2023.213590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 08/01/2023] [Accepted: 08/13/2023] [Indexed: 08/22/2023]
Abstract
Smart implantable electronic medical devices are being developed to deliver healthcare that is more connected, personalised, and precise. Many of these implantables rely on piezoceramics for sensing, communication, energy autonomy, and biological stimulation, but the piezoceramics with the strongest piezoelectric coefficients are almost exclusively lead-based. In this article, we evaluate the electromechanical and biological characteristics of a lead-free alternative, 0.94Bi0.5Na0.5TiO3-0.06BaTiO3 (BNT-6BT), manufactured via two synthesis routes: the conventional solid-state method (PIC700) and tape casting (TC-BNT-6BT). The BNT-6BT materials exhibited soft piezoelectric properties, with d33 piezoelectric coefficients that were inferior to commonly used PZT (PIC700: 116 pC/N; TC-BNT-6BT: 121 pC/N; PZT-5A: 400 pC/N). The material may be viable as a lead-free substitute for soft PZT where moderate performance losses up to 10 dB are tolerable, such as pressure sensing and pulse-echo measurement. No short-term harmful biological effects of BNT-6BT were detected and the material was conducive to the proliferation of MC3T3-E1 murine preosteoblasts. BNT-6BT could therefore be a viable material for electroactive implants and implantable electronics without the need for hermetic sealing.
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Affiliation(s)
- Thomas A G Hall
- Biomechanics Group, Department of Mechanical Engineering, Imperial College London, UK
| | | | - Stylianos Kechagias
- Biomechanics Group, Department of Mechanical Engineering, Imperial College London, UK
| | - Nupur Kohli
- Biomechanics Group, Department of Mechanical Engineering, Imperial College London, UK; Biomedical Engineering Department, Khalifa University, United Arab Emirates
| | - Christelle Denonville
- Thin Film and Membrane Technology, Sustainable Energy Technology, SINTEF Industry, Norway
| | - Per Martin Rørvik
- Thin Film and Membrane Technology, Sustainable Energy Technology, SINTEF Industry, Norway
| | - Frederic Cegla
- Non-Destructive Evaluation Group, Department of Mechanical Engineering, Imperial College London, UK
| | - Richard J van Arkel
- Biomechanics Group, Department of Mechanical Engineering, Imperial College London, UK.
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10
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Das KK, Basu B, Maiti P, Dubey AK. Piezoelectric nanogenerators for self-powered wearable and implantable bioelectronic devices. Acta Biomater 2023; 171:85-113. [PMID: 37673230 DOI: 10.1016/j.actbio.2023.08.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/05/2023] [Accepted: 08/29/2023] [Indexed: 09/08/2023]
Abstract
One of the recent innovations in the field of personalized healthcare is the piezoelectric nanogenerators (PENGs) for various clinical applications, including self-powered sensors, drug delivery, tissue regeneration etc. Such innovations are perceived to potentially address some of the unmet clinical needs, e.g., limited life-span of implantable biomedical devices (e.g., pacemaker) and replacement related complications. To this end, the generation of green energy from biomechanical sources for wearable and implantable bioelectronic devices gained considerable attention in the scientific community. In this perspective, this article provides a comprehensive state-of-the-art review on the recent developments in the processing, applications and associated concerns of piezoelectric materials (synthetic/biological) for personalized healthcare applications. In particular, this review briefly discusses the concepts of piezoelectric energy harvesting, piezoelectric materials (ceramics, polymers, nature-inspired), and the various applications of piezoelectric nanogenerators, such as, self-powered sensors, self-powered pacemakers, deep brain stimulators etc. Important distinction has been made in terms of the potential clinical applications of PENGs, either as wearable or implantable bioelectronic devices. While discussing the potential applications as implantable devices, the biocompatibility of the several hybrid devices using large animal models is summarized. This review closes with the futuristic vision of integrating data science approaches in developmental pipeline of PENGs as well as clinical translation of the next generation PENGs. STATEMENT OF SIGNIFICANCE: Piezoelectric nanogenerators (PENGs) hold great promise for transforming personalized healthcare through self-powered sensors, drug delivery systems, and tissue regeneration. The limited battery life of implantable devices like pacemakers presents a significant challenge, leading to complications from repititive surgeries. To address such a critical issue, researchers are focusing on generating green energy from biomechanical sources to power wearable and implantable bioelectronic devices. This comprehensive review critically examines the latest advancements in synthetic and nature-inspired piezoelectric materials for PENGs in personalized healthcare. Moreover, it discusses the potential of piezoelectric materials and data science approaches to enhance the efficiency and reliability of personalized healthcare devices for clinical applications.
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Affiliation(s)
- Kuntal Kumar Das
- Department of Ceramic Engineering, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Bikramjit Basu
- Materials Research Center, Indian Institute of Science, Bengaluru 560012, India
| | - Pralay Maiti
- SMST, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Ashutosh Kumar Dubey
- Department of Ceramic Engineering, Indian Institute of Technology (BHU), Varanasi 221005, India.
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Toalá CU, Prokhorov E, Barcenas GL, Landaverde MAH, Limón JMY, Gervacio-Arciniega JJ, de Fuentes OA, Tapia AMG. Electrostrictive and piezoelectrical properties of chitosan-poly(3-hydroxybutyrate) blend films. Int J Biol Macromol 2023; 250:126251. [PMID: 37562485 DOI: 10.1016/j.ijbiomac.2023.126251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 07/27/2023] [Accepted: 08/07/2023] [Indexed: 08/12/2023]
Abstract
Herein, we report the high apparent piezoelectric coefficient for chitosan-poly(3-hydroxybutyrate) (CS-PHB) blend films. The structure of chitosan-poly(3-hydroxybutyrate) (CS-PHB) blend films, exploiting characteristics such as dielectric, polarization, apparent piezoelectric properties, and their dependencies on the composition, were investigated. Based on the results of XRD, SEM, FTIR, PFM, and dielectric spectroscopy measurements, the structure of CS-PHB blend films has been proposed, which consists of spheric-like inclusion formed by precipitating isotactic-PHB interface layer, which consists of syndiotactic-PHB hydrogen bonding with CS, and CS matrix. The synergistic effects of piezoelectricity and electrostriction help explain the high value of the apparent piezoelectric coefficient (d33) obtained in the blend film with 13 wt% of PHB (d33 ≈ 200 pC/N). The investigated CS-PHB blend films are a good candidate for tissue engineering applications.
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Affiliation(s)
- C Uitz Toalá
- Nanosciences Program, Cinvestav del IPN, Mexico; CINVESTAV del IPN, Unidad Querétaro, Mexico
| | - E Prokhorov
- CINVESTAV del IPN, Unidad Querétaro, Mexico.
| | - G Luna Barcenas
- Nanosciences Program, Cinvestav del IPN, Mexico; CINVESTAV del IPN, Unidad Querétaro, Mexico.
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12
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Polley C, Distler T, Scheufler C, Detsch R, Lund H, Springer A, Schneidereit D, Friedrich O, Boccaccini AR, Seitz H. 3D printing of piezoelectric and bioactive barium titanate-bioactive glass scaffolds for bone tissue engineering. Mater Today Bio 2023; 21:100719. [PMID: 37529217 PMCID: PMC10387613 DOI: 10.1016/j.mtbio.2023.100719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/26/2023] [Accepted: 06/29/2023] [Indexed: 08/03/2023] Open
Abstract
Bone healing is a complex process orchestrated by various factors, such as mechanical, chemical and electrical cues. Creating synthetic biomaterials that combine several of these factors leading to tailored and controlled tissue regeneration, is the goal of scientists worldwide. Among those factors is piezoelectricity which creates a physiological electrical microenvironment that plays an important role in stimulating bone cells and fostering bone regeneration. However, only a limited number of studies have addressed the potential of combining piezoelectric biomaterials with state-of-the-art fabrication methods to fabricate tailored scaffolds for bone tissue engineering. Here, we present an approach that takes advantage of modern additive manufacturing techniques to create macroporous biomaterial scaffolds based on a piezoelectric and bioactive ceramic-crystallised glass composite. Using binder jetting, scaffolds made of barium titanate and 45S5 bioactive glass are fabricated and extensively characterised with respect to their physical and functional properties. The 3D-printed ceramic-crystallised glass composite scaffolds show both suitable mechanical strength and bioactive behaviour, as represented by the accumulation of bone-like calcium phosphate on the surface. Piezoelectric scaffolds that mimic or even surpass bone with piezoelectric constants ranging from 1 to 21 pC/N are achieved, depending on the composition of the composite. Using MC3T3-E1 osteoblast precursor cells, the scaffolds show high cytocompatibility coupled with cell attachment and proliferation, rendering the barium titanate/45S5 ceramic-crystallised glass composites promising candidates for bone tissue engineering.
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Affiliation(s)
| | - Thomas Distler
- Institute of Biomaterials, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | | | - Rainer Detsch
- Institute of Biomaterials, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Henrik Lund
- Leibniz Institute for Catalysis, Rostock, Germany
| | - Armin Springer
- Electron Microscopy Centrum, University Hospital Rostock, Germany
- Department Life, Light & Matter, University of Rostock, Rostock, Germany
| | - Dominik Schneidereit
- Institute of Medical Biotechnology, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Oliver Friedrich
- Institute of Medical Biotechnology, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Aldo R. Boccaccini
- Institute of Biomaterials, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Hermann Seitz
- Chair of Microfluidics, University of Rostock, Rostock, Germany
- Department Life, Light & Matter, University of Rostock, Rostock, Germany
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13
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Bhattacharya D, Mukherjee S, Mitra RK, Ray SK. Superior piezoelectric performance of chemically synthesized transition metal dichalcogenide heterostructures for self-powered flexible piezoelectric nanogenerator. Nanotechnology 2023. [PMID: 37478833 DOI: 10.1088/1361-6528/ace97d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/23/2023]
Abstract
In addition to the superior electrical and optoelectronic attributes, ultrathin two-dimensional transition metal dichalcogenides (TMDCs) have evoked appreciable attention for their piezoelectric properties. In this study, we report, the piezoelectric characteristics of large area, chemically exfoliated TMDCs and their heterostructures for the first time, as verified by piezoelectric force microscopy measurements. Piezoelectric output voltage response of the MoS2-WSe2 heterostructure piezoelectric nanogenerator (PENG) is enhanced by ~47.5% if compared with WSe2 and ~ 29% if compared to MoS2 PENG, attributed to large band offset induced by heterojunction formation. This allows the scalable fabrication of self-powered energy harvesting piezoelectric nanogenerators, which can overcome the various shortcomings of complicated synthesis processes, complex fabrication steps, low yield and poor stability. The fabricated flexible, self-powered MoS2-WSe2 heterostructure nanogenerator exhibits piezoelectric output ~46 mV under a strain of ~0.66% yielding a power output ~12.3 nW, which offers better performance than other two-dimensional material based piezoelectric devices and also reveals the ability of bio-mechanical energy harvesting. This cost effective approach to fabricate eco-friendly MoS2-WSe2 based fatigue free, superior performance piezoelectric-nanogenerators can be utilized to evolve flexible energy harvesting devices and may also be attractive as a self-powered, smart wearable sensor devices.
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Affiliation(s)
- Didhiti Bhattacharya
- S N Bose National Centre for Basic Sciences, JD Block, Sector III, Kol-70016,Salt Lake, North 24 Parganas, West Bengal, Kolkata, West Bengal, 700106, INDIA
| | - Shubhrasish Mukherjee
- S N Bose National Centre for Basic Sciences, JD Block, Sector III, Kol-70016, Salt Lake, North 24 Parganas, West Bengal, Kolkata, West Bengal, 700106, INDIA
| | - Rajib Kumar Mitra
- S N Bose National Centre for Basic Sciences, JD Block, Sector III, Kol-700106, Salt Lake, North 24 Parganas, West Bengal, Kolkata, West Bengal, 700106, INDIA
| | - Samit K Ray
- Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur - 721 302, Kharagpur, 721302, INDIA
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Guo XS, Guo SD, Si SN, Cheng K, Wang K, Ang YS. Janus monolayer ScXY (X̸=Y=Cl, Br and I) for piezoelectric and valleytronic application: a first-principle prediction. J Phys Condens Matter 2023. [PMID: 37364584 DOI: 10.1088/1361-648x/ace1c1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Coexistence of ferromagnetism, piezoelectricity and valley in two-dimensional (2D) materials is crucial to advance multifunctional electronic technologies. Here, Janus ScXY (X̸=Y=Cl, Br and I) monolayers are predicted to be piezoelectric ferromagnetic (FM) semiconductors with dynamical, mechanical and thermal stabilities. They all show an in-plane easy axis of magnetization by calculating magnetic anisotropy energy (MAE) including magnetocrystalline anisotropy (MCA) energy and magnetic shape anisotropy (MSA) energy. The MAE results show that they intrinsically have no spontaneous valley polarization. The predicted piezoelectric strain coefficients d11 and d31 (absolute values) are higher than ones of most 2D materials. Moreover, the d31 (absolute value) of ScClI reaches up to 1.14 pm/V, which is highly desirable for ultrathin piezoelectric device application. To obtain spontaneous valley polarization, charge doping are explored to tune the direction of magnetization of ScXY. By appropriate hole doping, their easy magnetization axis can change from in-plane to out-of-plane, resulting in spontaneous valley polarization. Taking ScBrI with 0.20 holes per f.u. as a example, under the action of an in-plane electric field, the hole carriers of K valley turn towards one edge of the sample, which will produce anomalous valley Hall effect (AVHE), and the hole carriers of Γ valley move in a straight line. These findings could pave the way for designing piezoelectric and valleytronic devices.
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Affiliation(s)
- Xiao-Shu Guo
- Xi'an University of Posts and Telecommunications, Xi'an 710121, China, Xi'an University of Posts and Telecommunications, Xi'an, 710121, CHINA
| | - San-Dong Guo
- Department of Physics, School of Sciences, China University of Mining and Technology, Xi'an University of Posts and Telecommunications, Xuzhou, Jiangsu province, 710121, CHINA
| | - Shuo-Ning Si
- Xi'an University of Posts and Telecommunications, Xi'an University of Posts and Telecommunications, Xi'an, 710121, CHINA
| | - Kai Cheng
- Xi'an University of Posts and Telecommunications, Xi'an University of Posts and Telecommunications, Xi'an, 710121, CHINA
| | - Ke Wang
- Xidian University, Xi'an University of Posts and Telecommunications, Xian, 710121, CHINA
| | - Yee Sin Ang
- SUTD-MIT International Design Center, Singapore University of Technology and Design, Singapore University of Technology and Design, Singapore, 487372, SINGAPORE
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15
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Zhu Z, Gou X, Liu L, Xia T, Wang J, Zhang Y, Huang C, Zhi W, Wang R, Li X, Luo S. Dynamically evolving piezoelectric nanocomposites for antibacterial and repair-promoting applications in infected wound healing. Acta Biomater 2023; 157:566-577. [PMID: 36481503 DOI: 10.1016/j.actbio.2022.11.061] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 11/23/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022]
Abstract
Wound healing from bacterial infections is one of the major challenges in the biomedical field. The traditional single administration methods are usually accompanied with side effects or unsatisfactory efficacy. Herein, we design dynamically evolving antibacterial and repair-promoting nanocomposites (NCs) by in situ self-assembling of zeolitic imidazolate framework-8 (ZIF-8) on the surface of barium titanate (BTO), and further loading with a small amount of ciprofloxacin (CIP). The new strategy of combining pH-stimulated drug delivery and ultrasound-controlled sonodyamics has the potential to dynamically evolve in infected wound sites, offering a multifunctional therapy. In vitro study demonstrates that the enhancement generation of reactive oxygen species through the sonodynamic process due to the heterostructures and a small amount of CIP released in an acidic environment are synergistically antibacterial, and the inhibition rate was >99.9%. In addition, reduced sonodynamic effect and Zn2+ generated along with the gradual degradation of ZIF-8 simultanously promote cell migration and tissue regeneration. The in vivo study of full-thickness skin wounds in mouse models demonstrate a healing rate of 99.3% could be achieved under the treatment of BTO@ZIF-8/CIP NCs. This work provides a useful improvement in rational design of multi-stimulus-responsive nanomaterials for wound healing. STATEMENT OF SIGNIFICANCE: A novel piezoelectric nanocomposite was proposed to realize sonodynamic therapy and pH-stimulated drug releasing simultaneously in wound healing treatment. The dynamically evolving structure of the piezoelectric nanocomposite in acidic microenvironment has been theoretically and experimentally verified to contribute to a continuous variation of sonodymanic strength, which accompanied with the gradual releasing of drug and biocompatible Zn2+effectively balanced antibacterial and repair-promoting effects. Both of the in vitro and in vivo study demonstrated that the strategy could significantly accelerate wound healing, inspiring researchers to optimize the design of multi-stimulus-responsive nanomaterials for various applications in biomedical and biomaterial fields.
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Affiliation(s)
- Zixin Zhu
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Xue Gou
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China.
| | - Laiyi Liu
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Tian Xia
- Department of Pathology, Western Theater Command Air Force Hospital, Chengdu 610021, China
| | - Jiayi Wang
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Yimeng Zhang
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Chenjun Huang
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Wei Zhi
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Ran Wang
- BGI-Shenzhen, Shenzhen, Guangdong 518083, China
| | - Xiaohong Li
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Shengnian Luo
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
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16
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Abstract
Control of symmetry breaking of materials provides large opportunities to regulate their properties and functions. Herein, we report breaking the symmetry of layered dipeptide crystals by utilizing CO2 to induce the adjacent monomolecular layers to stack from the opposite to the same direction. The role of CO2 is to cover the interlayer interaction sites and force the dipeptides to adsorb at asymmetric positions. Further, the dipeptide crystals exhibit far superior piezoelectricity after symmetry breaking and the piezoelectric voltage generated from the dipeptide-based generators becomes more than 500 % higher than before. This work reveals a potential route to engineer structures and properties of layered materials and provides a deep insight into the control of non-covalent interactions.
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Affiliation(s)
- Xianbao Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Qi Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 100190, Beijing, China
| | - Aoli Wu
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Junbai Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
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17
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Chen WC, Huang BY, Huang SM, Liu SM, Chang KC, Ko CL, Lin CL. In vitro evaluation of electrospun polyvinylidene fluoride hybrid nanoparticles as direct piezoelectric membranes for guided bone regeneration. Biomater Adv 2022; 144:213228. [PMID: 36481520 DOI: 10.1016/j.bioadv.2022.213228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/28/2022] [Accepted: 11/28/2022] [Indexed: 12/02/2022]
Abstract
A polyvinylidene fluoride (PVDF) piezoelectric membrane containing carbon nanotubes (CNTs) and graphene oxide (GO) additives was prepared, with special emphasis on the piezoelectric activity of the aligned fibers. Fibroblast viability on membranes was measured to study cytotoxicity. Osteoprogenitor D1 cells were cultured, and mineralization of piezoelectric composite membranes was assessed by ultrasound stimulation. Results showed that the electrospun microstructures were anisotropically aligned fibers. As the GO content increased to 1.0 wt% (0.2 wt% interval), the β phase in PVDF slightly increased but showed the opposite trend with the increase in CNT. Excessive addition of GO and CNT hindered the growth of the β phase in PVDF. The direct piezoelectric activity and mechanical properties showed the same trend as the β phase in PVDF. Moreover, GO/PVDF with the same nanoparticle content showed better performance than CNT/PVDF composites. In this study, a comparison of the generated piezoelectric specific voltage (unit: 10-3 Vg-1 cm-2, linear stretch, g33) with control PVDF only (0.55 ± 0.16) revealed that the two composites containing 0.8 wt% GO- and 0.2 wt% CNT- with 15 wt% PVDF exhibited excellent piezoelectric voltages, which were 3.37 ± 1.05 and 1.45 ± 0.07 (10-3 Vg-1 cm-2), respectively. In vitro cultures of these two groups in contact with D1 cells showed significantly higher alkaline phosphatase secretion than the PVDF only group within 1-10 days of cell culture. Further application of ultrasound stimulation showed that the piezoelectric membrane differentiated D1 cells earlier than without ultrasound and induced higher proliferation and mineralization. This developing piezoelectric effect is expected to generate voltage through activities to enhance microcurrent stimulation in vivo.
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Affiliation(s)
- Wen-Cheng Chen
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan; Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Dental Medical Devices and Materials Research Center, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Bo-Yuan Huang
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan
| | - Ssu-Meng Huang
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan
| | - Shih-Ming Liu
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan
| | - Kai-Chi Chang
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan
| | - Chia-Ling Ko
- Dental Medical Devices and Materials Research Center, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Chih-Lung Lin
- Division of Neurosurgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; Department of Surgery, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
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18
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Wang T, Xu ES, Chen B, Hoffmann R, Crespi VH. Theory of Borazine-Derived Nanothreads: Enumeration, Reaction Pathways, and Piezoelectricity. ACS Nano 2022; 16:15884-15893. [PMID: 36166474 DOI: 10.1021/acsnano.2c02778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Nanothreads are one-dimensional macromolecules formed by pressure-induced polymerization along stacks of multiply unsaturated (or highly strained) molecules such as benzene (or cubane). Borazine is isoelectronic to benzene yet with substantial bond polarity, thus motivating a theoretical examination of borazine-derived nanothreads with degrees of saturation of 2, 4, and 6 (defined as the number of four-coordinated boron and nitrogen atoms per borazine formula unit). The energy increases upon going from molecular borazine to degree-2 borazine-derived threads and then decreases for degree-4 and degree-6 nanothreads as more σ bonds are formed. With the constraint of no more than two borazine formula units within the repeat unit of the framework's bonding topology, there are only 13 fully saturated (i.e., degree-6) borazine-derived nanothreads that avoid energetically costly homopolar bonds (as compared to more than 50 such candidates for benzene-derived threads). Only two of these are more stable than borazine. Hypothetical pathways from molecular borazine to these two degree-6 borazine-derived nanothreads are discussed. This relative paucity of outcomes may assist in kinetic control of reaction products. Beyond the high mechanical strength also predicted for carbon-based threads, properties such as piezoelectricity and flexoelectricity may be accessible to the polar lattice of borazine-derived nanothreads, with intriguing prospects for expression in these extremely thin yet rigid objects.
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Affiliation(s)
- Tao Wang
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - En-Shi Xu
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Materials Research Institute, Pennsylvania State University, University Park, Pennsylvania 16802, United States
- School of Physics and Electronics, Qiannan Normal University for Nationalities, Duyun 558000, P.R. China
| | - Bo Chen
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastian, Spain
- IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
| | - Roald Hoffmann
- Department of Chemistry and Chemical Biology, Cornell University, Baker Laboratory, Ithaca, New York 14853-1301, United States
| | - Vincent H Crespi
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Materials Research Institute, Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
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19
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Orkwis JA, Wolf AK, Mularczyk ZJ, Bryan AE, Smith CS, Brown R, Krutko M, McCann A, Collar RM, Esfandiari L, Harris GM. Mechanical stimulation of a bioactive, functionalized PVDF-TrFE scaffold provides electrical signaling for nerve repair applications. Biomater Adv 2022; 140:213081. [PMID: 35994930 DOI: 10.1016/j.bioadv.2022.213081] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/19/2022] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
Traumatic nerve injuries have limited success in achieving full functional recovery, with current clinical solutions often including implementation of nerve grafts or the use of nerve conduits to guide damaged axons across injury gaps. In search of alternative, and complimentary solutions, piezoelectric biomaterials demonstrate immense potential for tissue engineering applications. Piezoelectric poly(vinylidene fluoride-triflouroethylene) (PVFD-TrFE) scaffolds can be harnessed to non-invasively stimulate and direct function of key peripheral nervous system (PNS) cells in regeneration strategies. In this study, electrospun PVDF-TrFE was characterized, fabricated into a 3D scaffold, and finally rendered bioactive with the incorporation of a cell-secreted, decellularized extracellular matrix (dECM). PVDF-TrFE scaffolds were characterized extensively for piezoelectric capacity, mechanical properties, and cell-material interactions with fibroblasts and Schwann cells. Through functionalization of PVDF-TrFE scaffolds with a native, cell-assembled dECM, the ability to promote cell adhesion and enhanced viability was also demonstrated. Additionally, incorporation of bioactive functionalization improved the assembly of key regenerative ECM proteins and regenerative growth factors. PVDF-TrFE scaffolds were then fabricated into a conduit design that retained key physical, chemical, and piezoelectric properties necessary for PNS repair. This work shows great promise for multi-cue, electrospun biomaterials for regeneration of the PNS in traumatic injury.
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Affiliation(s)
- Jacob A Orkwis
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH 45221, United States of America
| | - Ann K Wolf
- Department of Electrical Engineering and Computer Science, University of Cincinnati, Cincinnati, OH 45221, United States of America
| | - Zachary J Mularczyk
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH 45221, United States of America
| | - Andrew E Bryan
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH 45221, United States of America
| | - Corinne S Smith
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH 45221, United States of America
| | - Ryan Brown
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH 45221, United States of America
| | - Maksym Krutko
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH 45221, United States of America
| | - Adam McCann
- Department of Otolaryngology-Head & Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH 45267, United States of America
| | - Ryan M Collar
- Department of Otolaryngology-Head & Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH 45267, United States of America
| | - Leyla Esfandiari
- Department of Electrical Engineering and Computer Science, University of Cincinnati, Cincinnati, OH 45221, United States of America; Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH 45221, United States of America; Department of Environmental and Public Health Sciences, University of Cincinnati, Cincinnati, OH 45267, United States of America.
| | - Greg M Harris
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH 45221, United States of America; Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH 45221, United States of America; Neuroscience Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45267, United States of America.
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20
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Guillot-Ferriols M, Lanceros-Méndez S, Gómez Ribelles JL, Gallego Ferrer G. Electrical stimulation: Effective cue to direct osteogenic differentiation of mesenchymal stem cells? Biomater Adv 2022; 138:212918. [PMID: 35913228 DOI: 10.1016/j.bioadv.2022.212918] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 05/02/2022] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Abstract
Mesenchymal stem cells (MSCs) play a major role in bone tissue engineering (BTE) thanks to their capacity for osteogenic differentiation and being easily available. In vivo, MSCs are exposed to an electroactive microenvironment in the bone niche, which has piezoelectric properties. The correlation between the electrically active milieu and bone's ability to adapt to mechanical stress and self-regenerate has led to using electrical stimulation (ES) as physical cue to direct MSCs differentiation towards the osteogenic lineage in BTE. This review summarizes the different techniques to electrically stimulate MSCs to induce their osteoblastogenesis in vitro, including general electrical stimulation and substrate mediated stimulation by means of conductive or piezoelectric cell culture supports. Several aspects are covered, including stimulation parameters, treatment times and cell culture media to summarize the best conditions for inducing MSCs osteogenic commitment by electrical stimulation, from a critical point of view. Electrical stimulation activates different signaling pathways, including bone morphogenetic protein (BMP) Smad-dependent or independent, regulated by mitogen activated protein kinases (MAPK), extracellular signal-regulated kinases (ERK) and p38. The roles of voltage gate calcium channels (VGCC) and integrins are also highlighted according to their application technique and parameters, mainly converging in the expression of RUNX2, the master regulator of the osteogenic differentiation pathway. Despite the evident lack of homogeneity in the approaches used, the ever-increasing scientific evidence confirms ES potential as an osteoinductive cue, mimicking aspects of the in vivo microenvironment and moving one step forward to the translation of this approach into clinic.
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Affiliation(s)
- M Guillot-Ferriols
- Centre for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, 46022 Valencia, Spain; Biomedical Research Networking Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Valencia, Spain.
| | - S Lanceros-Méndez
- Centre of Physics of Minho and Porto Universities, Universidade do Minho, 4710-058 Braga, Portugal; BCMaterials, Basque Centre for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; IKERBASQUE, Basque Foundation for Science, 48009 Bilbao, Spain
| | - J L Gómez Ribelles
- Centre for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, 46022 Valencia, Spain; Biomedical Research Networking Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Valencia, Spain
| | - G Gallego Ferrer
- Centre for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, 46022 Valencia, Spain; Biomedical Research Networking Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Valencia, Spain
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21
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Ding D, Li Z, Yu S, Yang B, Yin Y, Zan L, Myung NV. Piezo-photocatalytic flexible PAN/TiO 2 composite nanofibers for environmental remediation. Sci Total Environ 2022; 824:153790. [PMID: 35150683 DOI: 10.1016/j.scitotenv.2022.153790] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/05/2022] [Accepted: 02/06/2022] [Indexed: 06/14/2023]
Abstract
Mechanical vibrations and solar energy are ubiquitous in the environment. Hereon, we report the synergic enhancement of the oxidation by simultaneously harvesting solar and mechanical vibrations through flexible piezo and photocatalytic composite nanofiber mats. Surface enriched titanium dioxide nanoparticles incorporated in polyacrylonitrile (PAN/TiO2) nanofibers were synthesized using a single pot electrospinning process with well-defined fiber diameters with widely tunable loading density. By incorporating photocatalytic TiO2 in flexible piezoelectric PAN nanofiber support, piezoelectric fields generated under the mechanical deformation promote the separation of the photogenerated electrons and holes to accelerate oxidation of pollutants. Our results demonstrated that the catalytic activity of PAN/TiO2 nanofibers in photodegradation of Rhodamine B (RhB) can be greatly enhanced by environmental vibration-induced piezoelectricity of PAN nanofibers, with a maximum enhancement factor of ~2.5. The working mechanism for the enhanced photocatalytic activity of PAN/TiO2 nanofibers by the mechanical vibrations were attributed to the piezoelectric effect of PAN nanofibers, which could efficiently promote the separation of the photogenerated electrons and holes in the TiO2 nanoparticles. We believe the approach to enhancing the catalytic activity of mat can make full use of the polymer properties and natural energy, and it also can be extended to other composite polymer/semiconductor systems.
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Affiliation(s)
- Deng Ding
- College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Zhiwei Li
- Department of Chemistry, University of California, Riverside, California 92521, USA
| | - Sooyung Yu
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, IN 46556, USA
| | - Bingxin Yang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, IN 46556, USA
| | - Yadong Yin
- Department of Chemistry, University of California, Riverside, California 92521, USA
| | - Ling Zan
- College of Chemistry and Molecular Science, Wuhan University, Wuhan 430072, China
| | - Nosang Vincent Myung
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, IN 46556, USA.
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22
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Lei H, He Q, Wu M, Xu Y, Sun P, Dong X. Piezoelectric polarization promoted spatial separation of photoexcited electrons and holes in two-dimensional g-C 3N 4 nanosheets for efficient elimination of chlorophenols. J Hazard Mater 2022; 421:126696. [PMID: 34332490 DOI: 10.1016/j.jhazmat.2021.126696] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/23/2021] [Accepted: 07/18/2021] [Indexed: 06/13/2023]
Abstract
Graphitic carbon nitride (g-C3N4) has been proved to be a potential photocatalyst for environment purification, but the high recombination rate of photogenerated carriers leads to the low photocatalytic efficiency. Herein, we report the enhanced degradation of chlorophenols by 2D ultrathin g-C3N4 nanosheets with intrinsic piezoelectricity through photopiezocatalysis strategy. Under the simultaneous visible-light irradiation and ultrasonic vibration, the 2D g-C3N4 presented improved removal efficiency for elimination of 2,4-dichlorophenol (2,4-DCP) with an apparent rate constant of 6.65 × 10-2 min-1, which was 6.7 and 2.2 times of the photocatalysis and piezocatalysis, respectively. The improved removal efficiency was attributed to the sufficient separation of free charges driven by the ultrasound-induced piezoelectric field in the 2D g-C3N4, which was demonstrated by the enhanced current response under photopiezocatalysis mode. Additionally, the photopiezocatalysis of 2D g-C3N4 was proved to possess well universality for removing different chlorophenols, as well as high durability and dechlorination efficiency. Finally, a possible photopiezocatalytic mechanism for removal of 2,4-DCP was proposed based on the electron paramagnetic resonance (EPR) technique and the determination of intermediates through liquid chromatography-mass spectrometry (LC-MS) analysis. This work provides a promising strategy for the design of energy-conversion materials towards capturing solar and mechanical energy in ambient environment.
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Affiliation(s)
- Hua Lei
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Qingshen He
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Meixuan Wu
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yingying Xu
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Pengfei Sun
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Xiaoping Dong
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China.
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23
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Kopyl S, Surmenev R, Surmeneva M, Fetisov Y, Kholkin A. Magnetoelectric effect: principles and applications in biology and medicine- a review. Mater Today Bio 2021; 12:100149. [PMID: 34746734 PMCID: PMC8554634 DOI: 10.1016/j.mtbio.2021.100149] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 10/05/2021] [Accepted: 10/08/2021] [Indexed: 12/26/2022] Open
Abstract
Magnetoelectric (ME) effect experimentally discovered about 60 years ago remains one of the promising research fields with the main applications in microelectronics and sensors. However, its applications to biology and medicine are still in their infancy. For the diagnosis and treatment of diseases at the intracellular level, it is necessary to develop a maximally non-invasive way of local stimulation of individual neurons, navigation, and distribution of biomolecules in damaged cells with relatively high efficiency and adequate spatial and temporal resolution. Recently developed ME materials (composites), which combine elastically coupled piezoelectric (PE) and magnetostrictive (MS) phases, have been shown to yield very strong ME effects even at room temperature. This makes them a promising toolbox for solving many problems of modern medicine. The main ME materials, processing technologies, as well as most prospective biomedical applications will be overviewed, and modern trends in using ME materials for future therapies, wireless power transfer, and optogenetics will be considered.
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Affiliation(s)
- S. Kopyl
- Department of Physics & CICECO - Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| | - R. Surmenev
- Physical Materials Science and Composite Materials Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk, Russia
- Piezo- and Magnetoelectric Materials Research & Development Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk, Russia
| | - M. Surmeneva
- Physical Materials Science and Composite Materials Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk, Russia
- Piezo- and Magnetoelectric Materials Research & Development Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk, Russia
| | - Y. Fetisov
- Research & Education Centre ‘Magnetoelectric Materials and Devices’, MIREA – Russian Technological University, Moscow, Russia
| | - A. Kholkin
- Department of Physics & CICECO - Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
- Piezo- and Magnetoelectric Materials Research & Development Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk, Russia
- School of Natural Sciences and Mathematics, Ural Federal University, Ekaterinburg, Russia
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24
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Brückner H, Höfer S. Dispersion analysis of sucrose C 12H 22O 11 single crystal. Spectrochim Acta A Mol Biomol Spectrosc 2021; 255:119654. [PMID: 33773430 DOI: 10.1016/j.saa.2021.119654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/13/2021] [Accepted: 03/01/2021] [Indexed: 06/12/2023]
Abstract
We present the first complete dispersion analysis of a sucrose single crystal in the infrared spectral region between 4000 and 400 cm-1 by means of an adapted generalized dispersion analysis employing the naturally grown crystal faces. The gained dielectric tensor function and the oscillator parameters were confirmed by forward calculation of reflection spectra of different orientations. Reliable growth of large-sized sucrose crystals makes it candidates for doping with photonically active materials.
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Affiliation(s)
- H Brückner
- Interdisciplinary Research Center for BioSystems, Land Use and Nutrition (IFZ), Department of Food Sciences, Institute of Nutritional Science, Justus-Liebig University of Giessen, Heinrich-Buff-Ring 26-32, D-35392 Giessen, Germany.
| | - S Höfer
- Leibniz-Institute of Photonic Technologies e.V., Albert-Einstein-Straße 9, D-07745 Jena, Germany
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25
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Bansod YD, Kebbach M, Kluess D, Bader R, van Rienen U. Finite element analysis of bone remodelling with piezoelectric effects using an open-source framework. Biomech Model Mechanobiol 2021; 20:1147-1166. [PMID: 33740158 PMCID: PMC8154825 DOI: 10.1007/s10237-021-01439-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 02/17/2021] [Indexed: 12/16/2022]
Abstract
Bone tissue exhibits piezoelectric properties and thus is capable of transforming mechanical stress into electrical potential. Piezoelectricity has been shown to play a vital role in bone adaptation and remodelling processes. Therefore, to better understand the interplay between mechanical and electrical stimulation during these processes, strain-adaptive bone remodelling models without and with considering the piezoelectric effect were simulated using the Python-based open-source software framework. To discretise numerical attributes, the finite element method (FEM) was used for the spatial variables and an explicit Euler scheme for the temporal derivatives. The predicted bone apparent density distributions were qualitatively and quantitatively evaluated against the radiographic scan of a human proximal femur and the bone apparent density calculated using a bone mineral density (BMD) calibration phantom, respectively. Additionally, the effect of the initial bone density on the resulting predicted density distribution was investigated globally and locally. The simulation results showed that the electrically stimulated bone surface enhanced bone deposition and these are in good agreement with previous findings from the literature. Moreover, mechanical stimuli due to daily physical activities could be supported by therapeutic electrical stimulation to reduce bone loss in case of physical impairment or osteoporosis. The bone remodelling algorithm implemented using an open-source software framework facilitates easy accessibility and reproducibility of finite element analysis made.
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Affiliation(s)
- Yogesh Deepak Bansod
- Institute of General Electrical Engineering, University of Rostock, 18051 Rostock, Germany
| | - Maeruan Kebbach
- Department of Orthopaedics, University Medicine Rostock, 18057 Rostock, Germany
- Department Life, Light & Matter, University of Rostock, 18051 Rostock, Germany
| | - Daniel Kluess
- Department of Orthopaedics, University Medicine Rostock, 18057 Rostock, Germany
- Department Life, Light & Matter, University of Rostock, 18051 Rostock, Germany
| | - Rainer Bader
- Department of Orthopaedics, University Medicine Rostock, 18057 Rostock, Germany
- Department Life, Light & Matter, University of Rostock, 18051 Rostock, Germany
- Department Ageing of Individuals and Society, University of Rostock, 18051 Rostock, Germany
| | - Ursula van Rienen
- Institute of General Electrical Engineering, University of Rostock, 18051 Rostock, Germany
- Department Life, Light & Matter, University of Rostock, 18051 Rostock, Germany
- Department Ageing of Individuals and Society, University of Rostock, 18051 Rostock, Germany
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26
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Pan CT, Dutt K, Yen CK, Kumar A, Kaushik AC, Wei DQ, Kumar A, Wen ZH, Hsu WH, Shiue YL. Characterization of Piezoelectric Properties of Ag-NPs Doped PVDF Nanocomposite Fibres Membrane Prepared by Near Field Electrospinning. Comb Chem High Throughput Screen 2021; 25:720-729. [PMID: 33653246 DOI: 10.2174/1386207324666210302100728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/17/2020] [Accepted: 01/30/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND In this study, Near-field electrospinning (NFES) technique used with a cylindrical collector to fabricate a large area permanent piezoelectric micro and nanofibers by a prepared solution. NFES requires a small electric field to fabricate fibers. OBJECTIVE The objective of this paper to investigate silver nanoparticle (Ag-NP)/ Polyvinylidene fluoride (PVDF) composite as the best piezoelectric material with improved properties to produced tremendously flexible and sensitive piezoelectric material with pertinent conductance. METHOD In this paper we used controllable electrospinning technique based on Near-field electrospinning (NFES)The process parameter for Ag-NP/PVDF composite electrospun fiber based on pure PVDF fiber. A PVDF solution concentration of 18 wt.% and 6 wt.% silver nitrate which is relative to the weight of PVDF wt.% with 1058 µS conductivity fibers have been directly written on a rotating cylindrical collector for aligned fiber PVDF/Ag-NP fibers are patterned on fabricated copper (Cu) interdigitated electrodes were implemented on a thin flexible polyethylene terephthalate (PET) substrate and Polydimethylsiloxane (PDMS) used as a package to enhance the durability of the PVDF/ Ag-NP device. RESULTS A notable effect on the piezoelectric response has been observed after Ag-NP addition confirmed by XRD characterization and tapping test of Ag-NP/PVDF composite fiber. The morphology of the PVDF/Ag-NP fibers and measure diameter by scanning electron microscopy (SEM) and Optical micrograph (OM), of fiber. Finally, The result shows that diameter of PVDF/Ag-NP fibers up to ~7 μm. The. High diffraction peak at 2θ = 20.5˚ was investigated by X-ray diffraction (XRD) in the piezoelectric crystal β-phase structure. While the electromechanical conversion is found enhance from ~0.1 V to ~1 V by the addition of silver nanoparticles (Ag-NPs) in the PVDF solution. CONCLUSION In conclusion, we can say that confirmed and validated the addition of Ag-NP in PVDF could enhance the piezoelectric property by using NFES technique with improved crystalline phase content can be useful for a wide range of power and sensing applications like biomedical devices and energy harvesting, among others.
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Affiliation(s)
- Cheng-Tang Pan
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung 80424. Taiwan,Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 80424. Taiwan,Institute of Precision Medicine, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Karishma Dutt
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung 80424. Taiwan
| | - Chung-Kun Yen
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Ajay Kumar
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung 80424. Taiwan,Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | | | | | - Amit Kumar
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 80424. Taiwan
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Wen-Hsin Hsu
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 80424. Taiwan,Department of Emergency Medicine, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | - You-Ling Shiue
- Institute of Precision Medicine, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan,Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
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27
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Poillot P, Le Maitre CL, Huyghe JM. The strain-generated electrical potential in cartilaginous tissues: a role for piezoelectricity. Biophys Rev 2021; 13:91-100. [PMID: 33747246 PMCID: PMC7930161 DOI: 10.1007/s12551-021-00779-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 01/01/2021] [Indexed: 12/26/2022] Open
Abstract
The strain-generated potential (SGP) is a well-established mechanism in cartilaginous tissues whereby mechanical forces generate electrical potentials. In articular cartilage (AC) and the intervertebral disc (IVD), studies on the SGP have focused on fluid- and ionic-driven effects, namely Donnan, diffusion and streaming potentials. However, recent evidence has indicated a direct coupling between strain and electrical potential. Piezoelectricity is one such mechanism whereby deformation of most biological structures, like collagen, can directly generate an electrical potential. In this review, the SGP in AC and the IVD will be revisited in light of piezoelectricity and mechanotransduction. While the evidence base for physiologically significant piezoelectric responses in tissue is lacking, difficulties in quantifying the physiological response and imperfect measurement techniques may have underestimated the property. Hindering our understanding of the SGP further, numerical models to-date have negated ferroelectric effects in the SGP and have utilised classic Donnan theory that, as evidence argues, may be oversimplified. Moreover, changes in the SGP with degeneration due to an altered extracellular matrix (ECM) indicate that the significance of ionic-driven mechanisms may diminish relative to the piezoelectric response. The SGP, and these mechanisms behind it, are finally discussed in relation to the cell response.
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Affiliation(s)
- Philip Poillot
- Bernal Institute, University of Limerick, Limerick, Ireland
| | | | - Jacques M. Huyghe
- Bernal Institute, University of Limerick, Limerick, Ireland
- Department of Mechanical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
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28
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Singh S, Krishnaswamy JA, Melnik R. Biological cells and coupled electro-mechanical effects: The role of organelles, microtubules, and nonlocal contributions. J Mech Behav Biomed Mater 2020; 110:103859. [PMID: 32957179 DOI: 10.1016/j.jmbbm.2020.103859] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 05/09/2020] [Accepted: 05/11/2020] [Indexed: 12/21/2022]
Abstract
Biological cells are exposed to a variety of mechanical loads throughout their life cycles that eventually play an important role in a wide range of cellular processes. The understanding of cell mechanics under the application of external stimuli is important for capturing the nuances of physiological and pathological events. Such critical knowledge will play an increasingly vital role in modern medical therapies such as tissue engineering and regenerative medicine, as well as in the development of new remedial treatments. At present, it is well known that the biological molecules exhibit piezoelectric properties that are of great interest for medical applications ranging from sensing to surgery. In the current study, a coupled electro-mechanical model of a biological cell has been developed to better understand the complex behaviour of biological cells subjected to piezoelectric and flexoelectric properties of their constituent organelles under the application of external forces. Importantly, a more accurate modelling paradigm has been presented to capture the nonlocal flexoelectric effect in addition to the linear piezoelectric effect based on the finite element method. Major cellular organelles considered in the developed computational model of the biological cell are the nucleus, mitochondria, microtubules, cell membrane and cytoplasm. The effects of variations in the applied forces on the intrinsic piezoelectric and flexoelectric contributions to the electro-elastic response have been systematically investigated along with accounting for the variation in the coupling coefficients. In addition, the effect of mechanical degradation of the cytoskeleton on the electro-elastic response has also been quantified. The present studies suggest that flexoelectricity could be a dominant electro-elastic coupling phenomenon, exhibiting electric fields that are four orders of magnitude higher than those generated by piezoelectric effects alone. Further, the output of the coupled electro-mechanical model is significantly dependent on the variation of flexoelectric coefficients. We have found that the mechanical degradation of the cytoskeleton results in the enhancement of both the piezo and flexoelectric responses associated with electro-mechanical coupling. In general, our study provides a framework for more accurate quantification of the mechanical/electrical transduction within the biological cells that can be critical for capturing the complex mechanisms at cellular length scales.
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Affiliation(s)
- Sundeep Singh
- MS2Discovery Interdisciplinary Research Institute, Wilfrid Laurier University, 75 University Avenue West, Waterloo, Ontario, N2L 3C5, Canada.
| | - Jagdish A Krishnaswamy
- MS2Discovery Interdisciplinary Research Institute, Wilfrid Laurier University, 75 University Avenue West, Waterloo, Ontario, N2L 3C5, Canada
| | - Roderick Melnik
- MS2Discovery Interdisciplinary Research Institute, Wilfrid Laurier University, 75 University Avenue West, Waterloo, Ontario, N2L 3C5, Canada; BCAM - Basque Center for Applied Mathematics, Alameda de Mazarredo 14, E-48009, Bilbao, Spain
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29
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Dello Russo S, Zhou S, Zifarelli A, Patimisco P, Sampaolo A, Giglio M, Iannuzzi D, Spagnolo V. Photoacoustic spectroscopy for gas sensing: A comparison between piezoelectric and interferometric readout in custom quartz tuning forks. Photoacoustics 2020; 17:100155. [PMID: 31956485 PMCID: PMC6957788 DOI: 10.1016/j.pacs.2019.100155] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 11/20/2019] [Accepted: 11/26/2019] [Indexed: 05/22/2023]
Abstract
We report on a comparison between piezoelectric and interferometric readouts of vibrations in quartz tuning forks (QTFs) when acting as sound wave transducers in a quartz-enhanced photoacoustic setup (QEPAS) for trace gas detection. A theoretical model relating the prong vibration amplitude with the QTF prong sizes and electrical resistance is proposed. To compare interferometric and piezoelectric readouts, two QTFs have been selected; a tuning fork with rectangular-shape of the prongs, having a resonance frequency of 3.4 kHz and a quality-factor of 4,000, and a QTF with prong having a T-shape characterized by a resonance frequency of 12.4 kHz with a quality-factor of 15,000. Comparison between the interferometric and piezoelectric readouts were performed by using both QTFs in a QEPAS sensor setup for water vapor detection. We demonstrated that the QTF geometry can be properly designed to enhance the signal from a specific readout mode.
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Affiliation(s)
- Stefano Dello Russo
- PolySense Lab - Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Via Amendola 173, Bari, Italy
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China
| | - Sheng Zhou
- Department of Physics and Astronomy, VU University Amsterdam, Amsterdam, the Netherlands
| | - Andrea Zifarelli
- PolySense Lab - Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Via Amendola 173, Bari, Italy
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China
| | - Pietro Patimisco
- PolySense Lab - Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Via Amendola 173, Bari, Italy
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China
| | - Angelo Sampaolo
- PolySense Lab - Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Via Amendola 173, Bari, Italy
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China
| | - Marilena Giglio
- PolySense Lab - Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Via Amendola 173, Bari, Italy
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China
| | - Davide Iannuzzi
- Department of Physics and Astronomy, VU University Amsterdam, Amsterdam, the Netherlands
| | - Vincenzo Spagnolo
- PolySense Lab - Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Via Amendola 173, Bari, Italy
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China
- Corresponding author at: PolySense Lab - Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Via Amendola 173, Bari, Italy.
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30
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Bishara H, Nagel A, Levanon M, Berger S. Amino acids nanocrystals for piezoelectric detection of ultra-low mechanical pressure. Mater Sci Eng C Mater Biol Appl 2020; 108:110468. [PMID: 31923955 DOI: 10.1016/j.msec.2019.110468] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 10/17/2019] [Accepted: 11/19/2019] [Indexed: 11/27/2022]
Abstract
Developing biocompatible nano-materials with the ability to detect ultra-low mechanical pressure is promising for biomedical sensors. This paper reports the detection of pressure as low as 1 Pa in the environmental pressure of 1 atm (10-3% pressure change) by nanocrystals of amino acids glycine and alanine through the piezoelectric effect. Piezoelectricity enables detection of pressure by a change of dielectric polarization when the material is subjected to external pressure. This work exploits the non-centro-symmetric structure of some amino acids and their weak hydrogen bonds to develop sensitive mechanical pressure sensors. The β-glycine and l-alanine nanocrystals were grown from aqueous solution inside porous alumina substrate. The nanocrystals exhibit pronounced preferred crystallographic orientation. The sensitive piezoelectric response to ultra-low mechanical pressure is discussed based on atomic and crystal symmetry considerations.
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Affiliation(s)
- Hanna Bishara
- Faculty of Materials Science and Engineering, Technion, 32000 Haifa, Israel.
| | - Alina Nagel
- Faculty of Materials Science and Engineering, Technion, 32000 Haifa, Israel
| | - Maya Levanon
- Faculty of Materials Science and Engineering, Technion, 32000 Haifa, Israel
| | - Shlomo Berger
- Faculty of Materials Science and Engineering, Technion, 32000 Haifa, Israel
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31
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Das A, Kumar Singh A, Parimita Patel P, Ch Mistri K, Chattopadhyay A. Reflection and refraction of plane waves at the loosely bonded common interface of piezoelectric fibre-reinforced and fibre-reinforced composite media. Ultrasonics 2019; 94:131-144. [PMID: 30558811 DOI: 10.1016/j.ultras.2018.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 09/24/2018] [Accepted: 11/25/2018] [Indexed: 06/09/2023]
Abstract
The rapid development of the modern age has increased the urge of using composite structures having applications in the realm of various engineering fields. Specifically, fibre-reinforced piezoelectric composites are in the forefront of the present era because of its light weight, great strength and hence improved performance over the piezoelectric materials alone. Therefore, the present paper delves with the problem of reflection and refraction of plane waves when it is incident at the interface of a Piezoelectric Fibre-reinforced Composite (PFRC) medium and Fibre-reinforced Composite (FRC) medium. It is assumed that the media are loosely bonded to each other and are under horizontal initial stresses. It is established that the boundary conditions are satisfied by the set of three coupled waves associated with the PFRC medium (namely quasi-longitudinal wave (qP), quasi-transverse wave (qSV), electrostatic wave (EA)) and two coupled waves associated with the FRC medium (namely quasi-longitudinal wave (qP), quasi-transverse wave (qSV)). The amplitude ratio of reflected and refracted waves are obtained with the aid of suitable boundary conditions at the common interface of the two media. The effect of anisotropy, initial stresses and loose bonding on the amplitude ratio are studied numerically and demonstrated by means of graphs. The effect of anisotropy is also studied on the slowness curves, plotted in slowness surface. Moreover, the relation for energy partition is also derived and it is established that the total normal energy flux balance at the interface is unity.
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Affiliation(s)
- Amrita Das
- Department of Applied Mathematics, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand 826004, India.
| | - Abhishek Kumar Singh
- Department of Applied Mathematics, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand 826004, India
| | - Prajnya Parimita Patel
- Department of Mathematics, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Kshitish Ch Mistri
- Department of Mathematics, Chandrapur College, Burdwan, West Bengal 713145, India
| | - Amares Chattopadhyay
- Department of Applied Mathematics, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand 826004, India
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Marino A, Almici E, Migliorin S, Tapeinos C, Battaglini M, Cappello V, Marchetti M, de Vito G, Cicchi R, Pavone FS, Ciofani G. Piezoelectric barium titanate nanostimulators for the treatment of glioblastoma multiforme. J Colloid Interface Sci 2018; 538:449-461. [PMID: 30537658 DOI: 10.1016/j.jcis.2018.12.014] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 11/28/2018] [Accepted: 12/03/2018] [Indexed: 12/31/2022]
Abstract
Major obstacles to the successful treatment of gliolastoma multiforme are mostly related to the acquired resistance to chemotherapy drugs and, after surgery, to the cancer recurrence in correspondence of residual microscopic foci. As innovative anticancer approach, low-intensity electric stimulation represents a physical treatment able to reduce multidrug resistance of cancer and to induce remarkable anti-proliferative effects by interfering with Ca2+ and K+ homeostasis and by affecting the organization of the mitotic spindles. However, to preserve healthy cells, it is utterly important to direct the electric stimuli only to malignant cells. In this work, we propose a nanotechnological approach based on ultrasound-sensitive piezoelectric nanoparticles to remotely deliver electric stimulations to glioblastoma cells. Barium titanate nanoparticles (BTNPs) have been functionalized with an antibody against the transferrin receptor (TfR) in order to obtain the dual targeting of blood-brain barrier and of glioblastoma cells. The remote ultrasound-mediated piezo-stimulation allowed to significantly reduce in vitro the proliferation of glioblastoma cells and, when combined with a sub-toxic concentration of temozolomide, induced an increased sensitivity to the chemotherapy treatment and remarkable anti-proliferative and pro-apoptotic effects.
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Affiliation(s)
- Attilio Marino
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy.
| | - Enrico Almici
- Politecnico di Torino, Department of Mechanical and Aerospace Engineering, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Simone Migliorin
- Politecnico di Torino, Department of Mechanical and Aerospace Engineering, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Christos Tapeinos
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Matteo Battaglini
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy; Scuola Superiore Sant'Anna, The Biorobotics Institute, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Valentina Cappello
- Istituto Italiano di Tecnologia, Center for Nanotechnology Innovation, Piazza San Silvestro 12, 56127 Pisa, Italy
| | - Marco Marchetti
- European Laboratory for Nonlinear Spectroscopy (LENS), Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy; Università di Firenze, Department of Physics and Astronomy, Via Giovanni Sansone 1, 50019 Sesto Fiorentino, Italy
| | - Giuseppe de Vito
- European Laboratory for Nonlinear Spectroscopy (LENS), Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy; National Institute of Optics, National Research Council (INO-CNR), Largo Enrico Fermi 6, 50125 Firenze, Italy
| | - Riccardo Cicchi
- European Laboratory for Nonlinear Spectroscopy (LENS), Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy; National Institute of Optics, National Research Council (INO-CNR), Largo Enrico Fermi 6, 50125 Firenze, Italy
| | - Francesco Saverio Pavone
- European Laboratory for Nonlinear Spectroscopy (LENS), Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy; Università di Firenze, Department of Physics and Astronomy, Via Giovanni Sansone 1, 50019 Sesto Fiorentino, Italy; National Institute of Optics, National Research Council (INO-CNR), Largo Enrico Fermi 6, 50125 Firenze, Italy
| | - Gianni Ciofani
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy; Politecnico di Torino, Department of Mechanical and Aerospace Engineering, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
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Kim TY, Kim SK, Kim SW. Application of ferroelectric materials for improving output power of energy harvesters. Nano Converg 2018; 5:30. [PMID: 30467658 PMCID: PMC6212376 DOI: 10.1186/s40580-018-0163-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 10/14/2018] [Indexed: 05/10/2023]
Abstract
In terms of advances in technology, especially electronic devices for human use, there are needs for miniaturization, low power, and flexibility. However, there are problems that can be caused by these changes in terms of battery life and size. In order to compensate for these problems, research on energy harvesting using environmental energy (mechanical energy, thermal energy, solar energy etc.) has attracted attention. Ferroelectric materials which have switchable dipole moment are promising for energy harvesting fields because of its special properties such as strong dipole moment, piezoelectricity, pyroelectricity. The strong dipole moment in ferroelectric materials can increase internal potential and output power of energy harvesters. In this review, we will provide an overview of the recent research on various energy harvesting fields using ferroelectrics. A brief introduction to energy harvesting and the properties of the ferroelectric material are described, and applications to energy harvesters to improve output power are described as well.
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Affiliation(s)
- Tae Yun Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon, 16419 Republic of Korea
| | - Sung Kyun Kim
- Department of Materials Science & Metallurgy, University of Cambridge, Cambridge, CB3 0FS UK
| | - Sang-Woo Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon, 16419 Republic of Korea
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Lu K, Huang W, Guo J, Gong T, Wei X, Lu BW, Liu SY, Yu B. Ultra-Sensitive Strain Sensor Based on Flexible Poly(vinylidene fluoride) Piezoelectric Film. Nanoscale Res Lett 2018. [PMID: 29541872 PMCID: PMC5852243 DOI: 10.1186/s11671-018-2492-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
A flexible 4 × 4 sensor array with 16 micro-scale capacitive units has been demonstrated based on flexible piezoelectric poly(vinylidene fluoride) (PVDF) film. The piezoelectricity and surface morphology of the PVDF were examined by optical imaging and piezoresponse force microscopy (PFM). The PFM shows phase contrast, indicating clear interface between the PVDF and electrode. The electro-mechanical properties show that the sensor exhibits excellent output response and an ultra-high signal-to-noise ratio. The output voltage and the applied pressure possess linear relationship with a slope of 12 mV/kPa. The hold-and-release output characteristics recover in less than 2.5 μs, demonstrating outstanding electro-mechanical response. Additionally, signal interference between the adjacent arrays has been investigated via theoretical simulation. The results show the interference reduces with decreasing pressure at a rate of 0.028 mV/kPa, highly scalable with electrode size and becoming insignificant for pressure level under 178 kPa.
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Affiliation(s)
- Kai Lu
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054 China
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510006 China
| | - Wen Huang
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054 China
| | - Junxiong Guo
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054 China
| | - Tianxun Gong
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054 China
| | - Xiongbang Wei
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054 China
| | - Bing-Wei Lu
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing, 100084 China
| | - Si-Yi Liu
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing, 100084 China
| | - Bin Yu
- College of Nanoscale Science and Engineering (CNSE), State University of New York, Albany, NY 12203 USA
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Darinskii AN, Weihnacht M, Schmidt H. FE analysis of surface acoustic wave transmission in composite piezoelectric wedge structures. Ultrasonics 2018; 84:366-372. [PMID: 29241057 DOI: 10.1016/j.ultras.2017.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 11/07/2017] [Accepted: 11/26/2017] [Indexed: 06/07/2023]
Abstract
The paper numerically investigates the transmission of harmonic surface acoustic waves (SAWs) across the perfectly bonded and perfectly sliding contacts between two 90°-wedges, at least one of which possessing piezoelectric properties. The finite element method in frequency domain is used. The structures are constructed of lithium niobate, fused quartz, silicon and gallium arsenide. The SAW is always incident from lithium niobate. The dependences of the transmission coefficient on the combination of materials and the orientation of the lithium niobate, as well as on the height of the step at the interface between the two parts of the structure are computed and analyzed. This step can appear in the process of fabrication of the composite substrate. The obtained results demonstrate that SAWs are able to transmit fairly efficiently across a wedge-like contact. Therefore such structures can be useful, in particular, in cases when it is advantageous to generate a SAW in one strongly piezoelectric material and observe its action, e.g., due to the transmitted surface normal displacement in another material like in SAW-driven microfluidics.
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Affiliation(s)
- A N Darinskii
- Institute of Crystallography FSRC "Crystallography Photonics", Russian Academy of Sciences, Leninskii pr. 59, Moscow 119333, Russia; National University of Science and Technology "MISIS", Leninsky pr. 4, Moscow 119049, Russia.
| | - M Weihnacht
- innoXacs, Am Muehlfeld 34, D-01744 Dippoldiswalde, Germany
| | - H Schmidt
- IFW Dresden, SAWLab Saxony, Helmholtzstr. 20, D-01069 Dresden, Germany
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Abstract
Tissues like bone and cartilage are remodeled dynamically for their functional requirements by signaling pathways. The signals are controlled by the cells and extracellular matrix and transmitted through an electrical and chemical synapse. Scaffold-based tissue engineering therapies largely disturb the natural signaling pathways, due to their rigidity towards signal conduction, despite their therapeutic advantages. Thus, there is a high need of smart biomaterials, which can conveniently generate and transfer the bioelectric signals analogous to native tissues for appropriate physiological functions. Piezoelectric materials can generate electrical signals in response to the applied stress. Furthermore, they can stimulate the signaling pathways and thereby enhance the tissue regeneration at the impaired site. The piezoelectric scaffolds can act as sensitive mechanoelectrical transduction systems. Hence, it is applicable to the regions, where mechanical loads are predominant. The present review is mainly concentrated on the mechanism related to the electrical stimulation in a biological system and the different piezoelectric materials suitable for bone and cartilage tissue engineering.
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Affiliation(s)
- Jaicy Jacob
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research, Ahmedabad, 380054 India
| | - Namdev More
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research, Ahmedabad, 380054 India
| | - Kiran Kalia
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research, Ahmedabad, 380054 India
| | - Govinda Kapusetti
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research, Ahmedabad, 380054 India
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More N, Kapusetti G. Piezoelectric material - A promising approach for bone and cartilage regeneration. Med Hypotheses 2017; 108:10-16. [PMID: 29055380 DOI: 10.1016/j.mehy.2017.07.021] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 07/17/2017] [Indexed: 12/11/2022]
Abstract
Bone and cartilage are major weight-bearing connective tissues in human and possesses utmost vulnerability for degeneration. The potential causes are mechanical trauma, cancer and disease condition like osteoarthritis and osteoporosis, etc. The regeneration/repair is a challenging, since their complex structures and activities. Current treatment options comprise of auto graft, allograft, artificial bone substituent, autologous chondrocyte implantation, mosaicplasty, marrow stimulation and tissue engineering. Were incompetent to overcome the problem like abandoned growth factor degradation, indistinct growth factor dose and lack of integrity and mechanical properties in regenerated tissues. Present, paper focuses on the novel hypothesis for regeneration of bone and cartilage by using piezoelectric smart property of scaffold material.
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Affiliation(s)
- Namdev More
- National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Palaj, Gandhinagar 382355, India
| | - Govinda Kapusetti
- National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Palaj, Gandhinagar 382355, India.
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Rouffaud R, Hladky-Hennion AC, Levassort F. A combined genetic algorithm and finite element method for the determination of a practical elasto-electric set for 1-3 piezocomposite phases. Ultrasonics 2017; 77:214-223. [PMID: 28254566 DOI: 10.1016/j.ultras.2017.02.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 02/15/2017] [Accepted: 02/16/2017] [Indexed: 06/06/2023]
Abstract
1-3 piezocomposites are widely used in ultrasonic transducers, particularly for imaging applications. The fabrication process is often based on the dice and fill method, leading to a periodic structure. This process can modify the initial properties of the two phases due to the machining of the piezoelectric bulk ceramic and setting of the polymer. A method is proposed to directly determine a practical set for 1-3 piezocomposite properties and all the elastic, dielectric and piezoelectric parameters of the two piezoelectric (11 constants) and inert phases (3 constants). This method is based on a fitting process of the electrical impedance as a function of frequency (one thickness and two lateral modes). For this purpose, a genetic algorithm coupled with a finite element method (GA/FEM) was used in an iterative process to deduce all these parameters. This method was first performed on a numerical phantom (Pz21/epoxy resin). Comparisons showed that the GA/FEM obtained a good set of the 14 parameters, and the accuracy of several parameters was discussed. Finally, the GA/FEM algorithm was applied to a fabricated 1-3 piezocomposite (dice and fill method). The results showed that the fabrication process introduced several changes in the properties of the two phases (in particular, the dielectric constants of the ceramic and one elastic constant of the polymer) compared to the initial commercial data, while keeping the identical thickness coupling factor at 64%.
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Affiliation(s)
- R Rouffaud
- Université François-Rabelais de Tours, GREMAN UMR 7347 CNRS, Tours, France; Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, UMR 8520 - IEMN, F-59000 Lille, France.
| | - A-C Hladky-Hennion
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, UMR 8520 - IEMN, F-59000 Lille, France
| | - F Levassort
- Université François-Rabelais de Tours, GREMAN UMR 7347 CNRS, Tours, France
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39
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Piao C, Kim JO. Vibration characteristics of an ultrasonic transducer of two piezoelectric discs. Ultrasonics 2017; 74:72-80. [PMID: 27743545 DOI: 10.1016/j.ultras.2016.09.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 09/17/2016] [Accepted: 09/27/2016] [Indexed: 06/06/2023]
Abstract
This paper considers the influence of the different thickness of the piezoelectric discs used in assembly of an ultrasonic sandwich transducer. The transducer consists of two piezoelectric discs with different thickness between 0 and 2.0mm and with same diameter 28mm. Its vibration characteristics of the radial and axial motions were investigated theoretically and experimentally in axisymmetric vibration modes. Theoretically, the differential equations of piezoelectric motions were solved to produce characteristic equations that provided natural frequencies and mode shapes. The range of the fundamental frequency of radial in-plane mode is 80-360kHz and that of the axial out-of-plane mode is 600-1200kHz. Experimentally, the natural frequencies and the radial in-plane motion were measured using an impedance analyzer and an in-plane laser interferometer, respectively. The results of the theoretical analysis were compared with those of a finite-element analysis and experiments, and the theoretical analysis was verified on the basis of this comparison. It was concluded that the natural frequencies of the radial modes of the transducer were not affected by the stack and thickness of piezoelectric discs; however, those of the thickness modes were affected by the stack and thickness of the piezoelectric discs.
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Affiliation(s)
- Chunguang Piao
- Department of Mechanical Engineering, Soongsil University, Seoul 06978, Republic of Korea
| | - Jin Oh Kim
- Department of Mechanical Engineering, Soongsil University, Seoul 06978, Republic of Korea.
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Yan Z, Wei C, Zhang C. Band structure calculation of SH waves in nanoscale multilayered piezoelectric phononic crystals using radial basis function method with consideration of nonlocal interface effects. Ultrasonics 2017; 73:169-180. [PMID: 27662480 DOI: 10.1016/j.ultras.2016.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 07/27/2016] [Accepted: 09/10/2016] [Indexed: 06/06/2023]
Abstract
In this paper, the radial basis function (RBF) collocation method based on the nonlocal Eringen piezoelectricity theory is developed to compute the band structures of nanoscale multilayered piezoelectric phononic crystals taking account of nonlocal interface effects. Detailed calculations are performed for anti-plane transverse waves propagating obliquely or vertically in the system. The correctness of the present method is verified by comparing the numerical results with those obtained by applying the transfer matrix method in the case of nonlocal perfect interfaces. The effects of nonlocal interface imperfections are considered by comparing with the nonlocal perfect interfaces. In addition, the influences of the piezoelectric constant, the nanoscale size, the impedance ratio and the incidence angle on the cut-off frequency and band structures are investigated and discussed in detail. Numerical results show that the nonlocal interface discontinuity has more obvious effect on the low-frequency band structures at the microscopic scale than at the macroscopic scale. Furthermore, at the macroscopic scale, the nonlocal interface imperfection has an obvious effect on the high frequency waves, but the effect on the low frequency waves is not obvious, and the nonlocal interface imperfection has no effect on the cut-off frequency at the microscopic scale.
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Affiliation(s)
- Zhizhong Yan
- School of Mathematics and Statistics, Beijing Institute of Technology, Beijing 100081, China; Beijing Key Laboratory on MCAACI, Beijing Institute of Technology, Beijing 100081, China.
| | - Chunqiu Wei
- School of Mathematics and Statistics, Beijing Institute of Technology, Beijing 100081, China; Beijing Key Laboratory on MCAACI, Beijing Institute of Technology, Beijing 100081, China
| | - Chuanzeng Zhang
- Department of Civil Engineering, University of Siegen, Siegen D-57068, Germany
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41
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Xi H, Lu MC, Qian X, Zhang QM, Rupprecht S, Yang QX. An Ultrasensitive Magnetoelectric Sensor System For the Quantitative Detection of Liver Iron. Proc IEEE Sens 2016; 2016. [PMID: 29805722 DOI: 10.1109/icsens.2016.7808778] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Ultrasensitive magnetoelectric (ME) sensors have been developed using magnetostrictive/piezoelectric laminate heterostructures. This paper discusses a highly interdisciplinary design of a room temperature biomagnetic liver susceptometry system (BLS) based on the ME sensors. The ME-sensor based BLS maintains the ultrahigh sensitivity to detect the weak AC biomagnetic signals and introduces a low equivalent magnetic noise. The results reveal a "turning point" and successfully indicate the output signals to be linearly responsive to iron concentrations from normal iron level (0.05 mgFe/gliver phantom) to 5 mgFe/gliver phantom iron overload level (100X overdose). Further, the introduction of the water-bag technique shows the promise on the automatic deduction of the background (tissue) signal, enabling an even higher sensitivity and better signal-to-noise (SNR). With these improvements, it becomes feasible to get improved characterization flexibility and the field distribution mapping potential via signal processing from the correlations of multiple sensors in the system. Considering the wide presence of biomagnetic signals in human organs, the potential impact of such biomagnetic devices on medicine and health care could be enormous and far-reaching.
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Affiliation(s)
- Hao Xi
- Department of Electrical Engineering and Material Research Institute, The Pennsylvania State University, University Park, PA 16802 USA
| | - Meng-Chien Lu
- Department of Electrical Engineering and Material Research Institute, The Pennsylvania State University, University Park, PA 16802 USA
| | - Xiaoshi Qian
- Department of Electrical Engineering and Material Research Institute, The Pennsylvania State University, University Park, PA 16802 USA
| | - Q M Zhang
- Department of Electrical Engineering and Material Research Institute, The Pennsylvania State University, University Park, PA 16802 USA
| | - Sebastian Rupprecht
- Departments of Radiology and Neurology, Penn State College of Medicine, Hershey, PA 17033 USA
| | - Qing X Yang
- Departments of Radiology and Neurology, Penn State College of Medicine, Hershey, PA 17033 USA
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42
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Manley ME, Abernathy DL, Sahul R, Parshall DE, Lynn JW, Christianson AD, Stonaha PJ, Specht ED, Budai JD. Giant electromechanical coupling of relaxor ferroelectrics controlled by polar nanoregion vibrations. Sci Adv 2016; 2:e1501814. [PMID: 27652338 PMCID: PMC5026422 DOI: 10.1126/sciadv.1501814] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 08/10/2016] [Indexed: 06/06/2023]
Abstract
Relaxor-based ferroelectrics are prized for their giant electromechanical coupling and have revolutionized sensor and ultrasound applications. A long-standing challenge for piezoelectric materials has been to understand how these ultrahigh electromechanical responses occur when the polar atomic displacements underlying the response are partially broken into polar nanoregions (PNRs) in relaxor-based ferroelectrics. Given the complex inhomogeneous nanostructure of these materials, it has generally been assumed that this enhanced response must involve complicated interactions. By using neutron scattering measurements of lattice dynamics and local structure, we show that the vibrational modes of the PNRs enable giant coupling by softening the underlying macrodomain polarization rotations in relaxor-based ferroelectric PMN-xPT {(1 - x)[Pb(Mg1/3Nb2/3)O3] - xPbTiO3} (x = 30%). The mechanism involves the collective motion of the PNRs with transverse acoustic phonons and results in two hybrid modes, one softer and one stiffer than the bare acoustic phonon. The softer mode is the origin of macroscopic shear softening. Furthermore, a PNR mode and a component of the local structure align in an electric field; this further enhances shear softening, revealing a way to tune the ultrahigh piezoelectric response by engineering elastic shear softening.
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Affiliation(s)
- Michael E. Manley
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Douglas L. Abernathy
- Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Raffi Sahul
- TRS Technologies, State College, PA 16801, USA
| | - Daniel E. Parshall
- NIST Center for Neutron Research, National Institute of Standards and Technology (NIST), Gaithersburg, MD 20899, USA
| | - Jeffrey W. Lynn
- NIST Center for Neutron Research, National Institute of Standards and Technology (NIST), Gaithersburg, MD 20899, USA
| | - Andrew D. Christianson
- Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Paul J. Stonaha
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Eliot D. Specht
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - John D. Budai
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
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43
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Catarino SO, Minas G, Miranda JM. Improving acoustic streaming effects in fluidic systems by matching SU-8 and polydimethylsiloxane layers. Ultrasonics 2016; 69:47-57. [PMID: 27044029 DOI: 10.1016/j.ultras.2016.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 03/22/2016] [Accepted: 03/22/2016] [Indexed: 06/05/2023]
Abstract
This paper reports the use of acoustic waves for promoting and improving streaming in tridimensional polymethylmethacrylate (PMMA) cuvettes of 15mm width×14mm height×2.5mm thickness. The acoustic waves are generated by a 28μm thick poly(vinylidene fluoride) - PVDF - piezoelectric transducer in its β phase, actuated at its resonance frequency: 40MHz. The acoustic transmission properties of two materials - SU-8 and polydimethylsiloxane (PDMS) - were numerically compared. It was concluded that PDMS inhibits, while SU-8 allows, the transmission of the acoustic waves to the propagation medium. Therefore, by simulating the acoustic transmission properties of different materials, it is possible to preview the acoustic behavior in the fluidic system, which allows the optimization of the best layout design, saving costs and time. This work also presents a comparison between numerical and experimental results of acoustic streaming obtained with that β-PVDF transducer in the movement and in the formation of fluid recirculation in tridimensional closed domains. Differences between the numerical and experimental results are credited to the high sensitivity of acoustic streaming to the experimental conditions and to limitations of the numerical method. The reported study contributes for the improvement of simulation models that can be extremely useful for predicting the acoustic effects of new materials in fluidic devices, as well as for optimizing the transducers and matching layers positioning in a fluidic structure.
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Affiliation(s)
- S O Catarino
- CEFT, Department of Chemical Engineering, FEUP, University of Porto, Portugal; Center for Microelectromechanical Systems (CMEMS-UMinho), University of Minho, Campus de Azurém, 4800-058 Guimaraes, Portugal.
| | - G Minas
- Center for Microelectromechanical Systems (CMEMS-UMinho), University of Minho, Campus de Azurém, 4800-058 Guimaraes, Portugal
| | - J M Miranda
- CEFT, Department of Chemical Engineering, FEUP, University of Porto, Portugal
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44
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Abstract
We present here biophysical models to gain deeper insights into how an acoustic stimulus might influence or modulate neuronal activity. There is clear evidence that neural activity is not only associated with electrical and chemical changes but that an electro-mechanical coupling is also involved. Currently, there is no theory that unifies the electrical, chemical, and mechanical aspects of neuronal activity. Here, we discuss biophysical models and hypotheses that can explain some of the mechanical aspects associated with neuronal activity: the soliton model, the neuronal intramembrane cavitation excitation model, and the flexoelectricity hypothesis. We analyze these models and discuss their implications on stimulation and modulation of neuronal activity by ultrasound.
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Affiliation(s)
- Elisabetta Sassaroli
- Department of Radiology, Brigham and Women’s Hospital, Focused Ultrasound Lab, 221 Longwood Ave., Boston, MA 02115 USA
| | - Natalia Vykhodtseva
- Department of Radiology, Brigham and Women’s Hospital, Focused Ultrasound Lab, 221 Longwood Ave., Boston, MA 02115 USA
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45
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Chen AL, Yan DJ, Wang YS, Zhang C. Anti-plane transverse waves propagation in nanoscale periodic layered piezoelectric structures. Ultrasonics 2016; 65:154-164. [PMID: 26518526 DOI: 10.1016/j.ultras.2015.10.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 09/07/2015] [Accepted: 10/05/2015] [Indexed: 06/05/2023]
Abstract
In this paper, anti-plane transverse wave propagation in nanoscale periodic layered piezoelectric structures is studied. The localization factor is introduced to characterize the wave propagation behavior. The transfer matrix method based on the nonlocal piezoelectricity continuum theory is used to calculate the localization factor. Additionally, the stiffness matrix method is applied to compute the wave transmission spectra. A cut-off frequency is found, beyond which the elastic waves cannot propagate through the periodic structure. The size effect or the influence of the ratio of the internal to external characteristic lengths on the cut-off frequency and the wave propagation behavior are investigated and discussed.
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Affiliation(s)
- A-Li Chen
- Institute of Engineering Mechanics, Beijing Jiaotong University, Beijing 100044, China.
| | - Dong-Jia Yan
- Institute of Engineering Mechanics, Beijing Jiaotong University, Beijing 100044, China
| | - Yue-Sheng Wang
- Institute of Engineering Mechanics, Beijing Jiaotong University, Beijing 100044, China
| | - Chuanzeng Zhang
- Department of Civil Engineering, University of Siegen, Siegen D-57068, Germany
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46
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Darinskii AN, Shuvalov AL, Poncelet O, Kutsenko AA. Bulk longitudinal wave reflection/transmission in periodic piezoelectric structures with metallized interfaces. Ultrasonics 2015; 63:118-125. [PMID: 26184448 DOI: 10.1016/j.ultras.2015.06.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 06/18/2015] [Accepted: 06/19/2015] [Indexed: 06/04/2023]
Abstract
A theoretical study is performed of the bulk acoustic wave propagation in periodic piezoelectric structures with metallized interperiod boundaries. A crucial specific feature of such structures is that the bounded acoustic beam incident perpendicular to an interface can generate scattered (i.e. reflected and transmitted) waves over the whole area of the interface rather than only within the spot where this acoustic beam crosses the interface as it occurs in the absence of metallization. This extra generation is due to the electric potential which is induced by the incident wave on the whole metallized boundary rather than only on its part. The expressions are obtained for the reflection and transmission coefficients in the case where a longitudinal wave propagates along the 6-fold symmetry axis of a hexagonal piezoelectric. The periodicity is realized by inserting thin metallic layers (electrodes) into otherwise homogeneous material perpendicular to its 6-fold axis. The derived expressions allow the determination of the amplitude of waves arising both inside and outside the incident acoustic beam. The analysis of these expressions shows that the extra generation in question is able to significantly alter the distribution of the wave amplitudes as compared with the pattern which is obtained without taking into account the wave fields appearing outside the domain occupied by the incident acoustic beam.
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Affiliation(s)
- A N Darinskii
- Institute of Crystallography RAS, Leninskii pr. 59, 119333 Moscow, Russia
| | - A L Shuvalov
- Univ. Bordeaux, CNRS UMR 5295, I2M-APY, 33405 Talence, France; National University of Science and Technology MISIS, Acousto-Optical Research Center, Leninskii pr. 4, 119049 Moscow, Russia
| | - O Poncelet
- Univ. Bordeaux, CNRS UMR 5295, I2M-APY, 33405 Talence, France
| | - A A Kutsenko
- Univ. Bordeaux, CNRS UMR 5295, I2M-APY, 33405 Talence, France
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47
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Sogawa Y, Kimura S, Harigai T, Sakurai N, Toyosato A, Nishikawa T, Inoue M, Murasawa A, Endo N. New Swallowing Evaluation Using Piezoelectricity in Normal Individuals. Dysphagia 2015; 30:759-67. [PMID: 26487065 DOI: 10.1007/s00455-015-9654-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 10/03/2015] [Indexed: 12/22/2022]
Abstract
This study aimed to elucidate the relationship between the piezoelectric waveform latency, hyoid bone movement, surface electromyogram (sEMG), and the pharyngeal transit time (PTT) during swallowing. Forty-one healthy subjects were divided into three age groups: younger (20-39 years, n = 8), middle-aged (40-59 years, n = 9), and older (60-79 years, n = 24). Motion analysis of the hyoid bone using videofluorography (VF), waveform analysis of the front neck using piezoelectric films, and sEMG of the suprahyoid muscle group were performed simultaneously. Latencies of the three movement phases were defined as upward (VFS1), forward (VFS2), and returning to starting position (VFS3). The three phases of the piezoelectric waveform-from wave initiation of the negative wave to the start of the second deep negative wave; from the start of the second deep negative wave to the start of the last positive wave (SLPW); and from the SLPW to the end of the last positive wave-were defined as PS1, PS2, and PS3, respectively. VFS1-3 and PS1-3 were significantly correlated. VFS1 and PS1 latencies were significantly longer with thick liquid than with thin liquid. VFS2, PS1, and PS2 latencies were longer in the older group than in the other two groups. The start of PS1 was nearly equal to those of sEMG and VFS1. Bolus arrival time in the valleculae was statistically equal to the end of the PS1 with both thin and thick liquids. To establish the swallowing screening using Piezoelectric film, further investigation is necessary in the dysphagia patients.
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Affiliation(s)
- Yuichiro Sogawa
- Rehabilitation Center, Niigata University Medical and Dental Hospital, 1-754, Asahimachi-Dori, Chuo-ku, Niigata-Shi, 951-8520, Japan
| | - Shinji Kimura
- Rehabilitation Center, Niigata University Medical and Dental Hospital, 1-754, Asahimachi-Dori, Chuo-ku, Niigata-Shi, 951-8520, Japan.
| | - Toru Harigai
- Rehabilitation Center, Niigata University Medical and Dental Hospital, 1-754, Asahimachi-Dori, Chuo-ku, Niigata-Shi, 951-8520, Japan
| | - Naoki Sakurai
- Division of Comprehensive Prosthodontics, Department of Tissue Regeneration and Reconstruction, Course for Oral Life Science, Niigata University Graduate School of Medical and Dental Sciences, 2-5274, Gakkocho-dori, Chuo-ku, Niigata-Shi, 951-8514, Japan
| | - Akira Toyosato
- Heart Dental Clinic, 76, Kanabachiyamacho, Sekiya, Chuo-ku, Niigata-Shi, 951-8165, Japan
| | - Taro Nishikawa
- Rehabilitation Center, Niigata University Medical and Dental Hospital, 1-754, Asahimachi-Dori, Chuo-ku, Niigata-Shi, 951-8520, Japan
| | - Makoto Inoue
- Division of Dysphagia Rehabilitation, Niigata University Graduate School of Medical and Dental Sciences, 2-5274, Gakkocho-dori, Chuo-ku, Niigata-Shi, 951-8514, Japan
| | - Akira Murasawa
- Department of Rehabilitation Medicine, Niigata Rheumatic Center, 1-2-8, Honcho, Shibata-Shi, 957-0054, Japan
| | - Naoto Endo
- Rehabilitation Center, Niigata University Medical and Dental Hospital, 1-754, Asahimachi-Dori, Chuo-ku, Niigata-Shi, 951-8520, Japan
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Ma T, Wang J, Du J, Yang J. Resonances and energy trapping in AT-cut quartz resonators operating with fast shear modes driven by lateral electric fields produced by surface electrodes. Ultrasonics 2015; 59:14-20. [PMID: 25660411 DOI: 10.1016/j.ultras.2015.01.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2014] [Revised: 10/02/2014] [Accepted: 01/06/2015] [Indexed: 06/04/2023]
Abstract
We analyze coupled thickness-shear and extensional vibrations of a piezoelectric resonator of AT-cut quartz. Different from most of the AT-cut quartz resonators studied in the literature which are based on the slow shear mode excited by a thickness electric field, the resonator in this paper operates with the fast shear mode driven by a lateral electric field produced by a pair of electrodes on the top surface of the resonator. Mindlin's first-order theory of piezoelectric plates is used. Dispersion relations of the relevant waves in unelectroded and electroded plates are presented and compared. The motional capacitance, resonant frequencies and mode shapes near resonances are obtained from an electrically forced vibration analysis. Trapped modes without vibration near the resonator edges are identified. The effects of various structural parameters on energy trapping are examined and the mechanisms are discussed. The results can provide important bases for the parameters design of new resonators operating with the fast shear mode with new excitation schemes.
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Affiliation(s)
- Tingfeng Ma
- Piezoelectric Device Laboratory, School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, Zhejiang 315211, China.
| | - Ji Wang
- Piezoelectric Device Laboratory, School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Jianke Du
- Piezoelectric Device Laboratory, School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Jiashi Yang
- Piezoelectric Device Laboratory, School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, Zhejiang 315211, China; Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588-0526, USA
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49
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Ma T, Wang J, Du J, Yuan L, Qian Z, Zhang Z, Zhang C. Investigation of quasi lateral-field-excitation on (yxl)-17° LiNbO3 single crystal. Ultrasonics 2014; 54:967-970. [PMID: 24485749 DOI: 10.1016/j.ultras.2014.01.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Revised: 01/08/2014] [Accepted: 01/10/2014] [Indexed: 06/03/2023]
Abstract
Quasi lateral-field-excitation (LFE) on LiNbO3 crystal is investigated both theoretically and experimentally. It is found that when the driving electric field direction is parallel to the crystallographic X-axis of the piezoelectric substrate, (yxl)-17° LiNbO3 LFE bulk acoustic wave devices work on quasi-LFE mode. The experimental results agreed with the theoretical prediction well. The results provide the cut of LiNbO3 crystal for quasi-LFE bulk acoustic wave devices, which is important for designing high performance LFE sensors on LiNbO3 substrates.
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Affiliation(s)
- Tingfeng Ma
- Piezoelectric Device Laboratory, School of Mechanical Engineering & Mechanics, Ningbo University, Ningbo 315211, China.
| | - Ji Wang
- Piezoelectric Device Laboratory, School of Mechanical Engineering & Mechanics, Ningbo University, Ningbo 315211, China
| | - Jianke Du
- Piezoelectric Device Laboratory, School of Mechanical Engineering & Mechanics, Ningbo University, Ningbo 315211, China
| | - Lili Yuan
- Piezoelectric Device Laboratory, School of Mechanical Engineering & Mechanics, Ningbo University, Ningbo 315211, China
| | - Zhenghua Qian
- State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Zhitian Zhang
- Research Institute of Tsinghua University in Shenzhen, Shenzhen 518057, China
| | - Chao Zhang
- Research Institute of Tsinghua University in Shenzhen, Shenzhen 518057, China
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