Self-powered cardiac pacemaker by piezoelectric polymer nanogenerator implant

Azimi, Sara; Golabchi, Allahyar; Nekookar, Abdolhossein; Rabbani, Shahram; Amiri, Mojtaba; Asadi, Kamal; Abolhasani, Mohammad Mahdi

doi:10.1016/j.nanoen.2021.105781

Cited by 148 publications

(107 citation statements)

References 62 publications

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“…Among various polymer fiber fabrication techniques, wet spinning and electrospinning have been the most frequently applied methods in the recent years [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. Known as a primary method, wet spinning has been employed to prepare a significant majority of PAN fibers [23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Development of Porous Polyacrylonitrile Composite Fibers: New Precursor Fibers with High Thermal Stability

Samimi-Sohrforozani

Azimi

Abolhasani

et al. 2021

Electronic Materials

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Polyacrylonitrile (PAN) fibers with unique properties are becoming increasingly important as precursors for the fabrication of carbon fibers. Here, we suggest the preparation of porous PAN composite fibers to increase the homogeneity and thermal stability of the fibers. Based on the thermodynamics of polymer solutions, the ternary phase diagram of the PAN/H2O/Dimethylformamide (DMF) system has been modeled to introduce porosity in the fibers. Adding a conscious amount of water (4.1 wt.%) as a non-solvent to the PAN solution containing 1 wt.% of graphene oxide (GO), followed by wet spinning, has led to the preparation of porous composite fibers with high thermal stability and unique physicochemical properties. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) results elucidate that PAN/GO/H2O porous composite fibers have a higher thermal decomposition temperature, increased residual weight, reduced heat release rate, and higher crystallinity in comparison with the pristine PAN fibers, being a promising precursor for the development of high-performance carbon fibers. The results show a promising application window of the synthesized PAN fibers in electronic and electrochemical devices.

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Section: Introductionmentioning

confidence: 99%

Development of Porous Polyacrylonitrile Composite Fibers: New Precursor Fibers with High Thermal Stability

Samimi-Sohrforozani

Azimi

Abolhasani

et al. 2021

Electronic Materials

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“…Despite the similarity of the implementation of IPT to CPT, IPT is more widely used in diverse implantable device applications owing to its larger distance and moderate power delivery efficiency, [ 89 ] which can expand the range of applications of the implantable device (e.g., not only subcutaneous applications but also to deeply located organs, including heart, [ 90 ] brain, [ 4,91–93 ] and stomach). Several commercial wearable and implantable devices (e.g., pacemaker, [ 94–96 ] cochlear implant, [ 97–99 ] and brain stimulator) [ 100–102 ] have been developed using the IPT method. Accordingly, numerous related research results have also been reported from academia.…”

Section: Wireless Poweringmentioning

confidence: 99%

Wireless Power Transfer and Telemetry for Implantable Bioelectronics

Yoo

Lee

Joo

et al. 2021

Adv Healthcare Materials

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Implantable bioelectronic devices are becoming useful and prospective solutions for various diseases owing to their ability to monitor or manipulate body functions. However, conventional implantable devices (e.g., pacemaker and neurostimulator) are still bulky and rigid, which is mostly due to the energy storage component. In addition to mechanical mismatch between the bulky and rigid implantable device and the soft human tissue, another significant drawback is that the entire device should be surgically replaced once the initially stored energy is exhausted. Besides, retrieving physiological information across a closed epidermis is a tricky procedure. However, wireless interfaces for power and data transfer utilizing radio frequency (RF) microwave offer a promising solution for resolving such issues. While the RF interfacing devices for power and data transfer are extensively investigated and developed using conventional electronics, their application to implantable bioelectronics is still a challenge owing to the constraints and requirements of in vivo environments, such as mechanical softness, small module size, tissue attenuation, and biocompatibility. This work elucidates the recent advances in RF‐based power transfer and telemetry for implantable bioelectronics to tackle such challenges.

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“…To get out of these problems, reports on a polymer matrix supported by ferroelectric powder composites have been found, which fortified a large area of manufacturing devices, reduced cost, sustain high-stress forces, and enhanced mechanical resilience, but are not admissible in low magnitude and frequency input forces [146,153]. This time, highly durable and elastic polymer ferroelectric-based PENGs were proposed, with high mechanical permanence and optimistic output performances [62,[162][163][164]. Semimetallic/conductive layers or electrodes are deposited over the ferroelectric active layers to get charge separation without poling; graphene is a potential conductive layer, due to high thermal and electrical properties over the large surface area.…”

Section: Device Design and Output Power Optimization In Piezoelectric Pengsmentioning

confidence: 99%

Ferroelectric Materials Based Coupled Nanogenerators

Minhas

Hasan

Yang

2021

Nanoenergy Advances

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Innovations in nanogenerator technology foster pervading self-power devices for human use, environmental surveillance, energy transfiguration, intelligent energy storage systems, and wireless networks. Energy harvesting from ubiquitous ambient mechanical, thermal, and solar energies by nanogenerators is the hotspot of the modern electronics research era. Ferroelectric materials, which show spontaneous polarization, are reversible when exposed to the external electric field, and are responsive to external stimuli of strain, heat, and light are promising for modeling nanogenerators. This review demonstrates ferroelectric material-based nanogenerators, practicing the discrete and coupled pyroelectric, piezoelectric, triboelectric, and ferroelectric photovoltaic effects. Their working mechanisms and way of optimizing their performances, exercising the conjunction of effects in a standalone device, and multi-effects coupled nanogenerators are greatly versatile and reliable and encourage resolution in the energy crisis. Additionally, the expectancy of productive lines of future ensuing and propitious application domains are listed.

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Self-powered cardiac pacemaker by piezoelectric polymer nanogenerator implant

Cited by 148 publications

References 62 publications

Development of Porous Polyacrylonitrile Composite Fibers: New Precursor Fibers with High Thermal Stability

Development of Porous Polyacrylonitrile Composite Fibers: New Precursor Fibers with High Thermal Stability

Wireless Power Transfer and Telemetry for Implantable Bioelectronics

Ferroelectric Materials Based Coupled Nanogenerators

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