Instrumented electromagnetic generator: Optimized performance by automatic self-adaptation of the generator structure

Carneiro, Pedro M.R.; Vidal, João V.; Rolo, Pedro; Peres, Inês; Ferreira, José Martins; Kholkin, Andréi L.

doi:10.1016/j.ymssp.2022.108898

Cited by 25 publications

(6 citation statements)

References 55 publications

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“…Although promissing results were obtained when these low elecric current sources were used to power knee implants (Ibrahim et al 2019 ; Yamomo et al 2021 ), long-term and stable operation of these triboelectric harvesters was not yet ensured (Xu et al 2019 ). Research on high current sources has been conducted towards the development of electromagnetic harvesters with magnetic levitation architectures (Carneiro et al 2021 ; Geisler et al 2017 ; Soares dos Santos et al 2016a ). The most relevant approach is based on the concept of Instrumented Self-adaptive Electromagnetic Harvesting.…”

Section: Smart Implantsmentioning

confidence: 99%

“…The most relevant approach is based on the concept of Instrumented Self-adaptive Electromagnetic Harvesting. Using a stepper motor, an accelerometer and a processing system, self-adaptability was established by changing the generators’ length as a function of human motions (Carneiro et al 2021 ).…”

Section: Smart Implantsmentioning

confidence: 99%

“…Research on high current sources has been conducted towards the development of electromagnetic harvesters with magnetic levitation architectures (Carneiro et al 2021;Geisler et al 2017;Soares dos Santos et al 2016a).…”

Section: Self-powering Of Smart Implantsmentioning

confidence: 99%

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Bioelectronic multifunctional bone implants: recent trends

Santos

Bernardo

2022

Bioelectron Med

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The concept of Instrumented Smart Implant emerged as a leading research topic that aims to revolutionize the field of orthopaedic implantology. These implants have been designed incorporating biophysical therapeutic actuation, bone-implant interface sensing, implant-clinician communication and self-powering ability. The ultimate goal is to implement revist interface, controlled by clinicians/surgeons without troubling the quotidian activities of patients. Developing such high-performance technologies is of utmost importance, as bone replacements are among the most performed surgeries worldwide and implant failure rates can still exceed 10%. In this review paper, an overview to the major breakthroughs carried out in the scope of multifunctional smart bone implants is provided. One can conclude that many challenges must be overcome to successfully develop them as revision-free implants, but their many strengths highlight a huge potential to effectively establish a new generation of high-sophisticated biodevices.

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Section: Smart Implantsmentioning

confidence: 99%

Section: Smart Implantsmentioning

confidence: 99%

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Bioelectronic multifunctional bone implants: recent trends

Santos

Bernardo

2022

Bioelectron Med

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“…Two other important advantages are supported by these capacitive sensing systems. One concerns their electric powering: very low electric currents and voltages lower than 10 V are required, hence opening true opportunities for replacing conventional power systems (batteries) by energy harvesting technologies, mainly by those converting body biomechanical motion into electric energy ( Vidal et al (2021) ; Soares dos Santos et al (2016a) , Soares dos Santos et al (2016b) ; Carneiro et al (2021) ). The other concerns the ability of capacitive network sensors to effectively perform as a hybrid sensing-acting system.…”

Section: Emerging Of Multifunctional Smart Implantsmentioning

confidence: 99%

Multifunctional Smart Bone Implants: Fiction or Future?—A New Perspective

Peres

Rolo

Santos

2022

Front. Bioeng. Biotechnol.

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Implantable medical devices have been developed to provide multifunctional ability to numerous bioapplications. In the scope of orthopaedics, four methodologies were already proposed to design implant technologies: non-instrumented passive implants, non-instrumented active implants, instrumented passive implants and instrumented active implants. Even though bone replacements are among the most performed surgeries worldwide, implant failure rates can still exceed 10%. Controversial positions multiply in the scientific community about the potential of each methodology to minimize the burden related to implant failures. In this perspective paper, we argue that the next technological revolution in the field of implantable bone devices will most likely emerge with instrumented active implants as multifunctional smart devices extracorporeally controlled by clinicians/surgeons. Moreover, we provide a new perspective about implant technology: the essence of instrumented implants is to enclose a hybrid architecture in which optimal implant performances require both smart instrumentation and smart coatings, although the implant controllability must be ensured by extracorporeal systems.

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“…Energy harvesting technol-ogy, which can offset energy consumption and complement equipped batteries, is considered a favorable solution for powering various portable/wearable devices with elongated operation durations [3][4][5]. Thus, various energy harvesting devices, such as electromagnetic generators [6,7], piezoelectric nanogenerators [8], and triboelectric nanogenerators (TENGs) [9][10][11], are being investigated by numerous research groups. TENGs are highlighted as one of the most promising energy harvesters due to their unique advantages, such as their facile working mechanism and extremely diverse material choice [12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Toward Commercialization of Mechanical Energy Harvester: Reusable Triboelectric Nanogenerator Based on Closed-Loop Mass Production of Recyclable Thermoplastic Fluoropolymer with Microstructures

Ra,

Lee,

Bang

et al. 2023

International Journal of Energy Research

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Triboelectric nanogenerators (TENGs) have been considered a promising energy harvester. However, the wear-induced limited lifetime of the surface structure on fluoropolymeric contact layers of the TENG has been a critical issue in its commercialization because surface structures on soft engineering materials play a key role in enhancing the generation of electricity in TENGs. After the surface structure on the polymeric contact layer is worn out, the layer is required to be replaced with a new one with intact surface structures to reenhance the degraded output performance of the TENG. Herein, injection molding-assisted mass production is applied to manufacture micro/nanoscale surface-structured perfluoroalkoxy alkane (PFA) contact layers, which exhibit easily replaceable but fully recyclable characteristics. The optimized production time is shorter than 1 min, and the unit cost under $1 of manufacturing surface-structured PFA contact layers is achieved. TENG with the fabricated PFA contact layer can generate over 620 V of voltage and up to 12.4 mW of power from solid-solid contact and separation when the contact area is 5 cm × 5 cm and the contact frequency is 10 Hz. The manufactured PFA contact layer can be facilely replaced with a new one before the end of its lifetime to maintain the electrical output of the TENG, and the postused one can be fully recycled via reprocessing as the material for injection molding. Consequently, a tile-floor-based TENG is proposed as a proof-of-concept demonstration to show environmentally friendly and closed-loop production of TENGs.

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Instrumented electromagnetic generator: Optimized performance by automatic self-adaptation of the generator structure

Cited by 25 publications

References 55 publications

Bioelectronic multifunctional bone implants: recent trends

Bioelectronic multifunctional bone implants: recent trends

Multifunctional Smart Bone Implants: Fiction or Future?—A New Perspective

Toward Commercialization of Mechanical Energy Harvester: Reusable Triboelectric Nanogenerator Based on Closed-Loop Mass Production of Recyclable Thermoplastic Fluoropolymer with Microstructures

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