Film Sensor Device Fabricated by a Piezoelectric Poly(L-lactic acid) Film

Ando, Masamichi; Kawamura, Hideki; Kageyama, Kensuke; Tajitsu, Yoshiro

doi:10.7567/jjap.51.09ld14

Cited by 65 publications

(41 citation statements)

References 19 publications

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“…Apart from PVDF and nylon, piezoelectric properties have been reported in other polymers including, polylactic acid (poly-L-lactic acid with shear piezoelectricity, in particular) [32,33] (figures 3(a) and (b)), polyurea [34,35] and cellulose Reprinted with permission from [19]. Copyright 2013 American Chemical Society.…”

Section: Piezoelectric Polymersmentioning

confidence: 99%

Nanostructured polymer-based piezoelectric and triboelectric materials and devices for energy harvesting applications

Jing

Kar‐Narayan

2018

J. Phys. D: Appl. Phys.

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Harvesting energy from ambient mechanical sources in our environment has attracted considerable interest due to its potential to power applications such as ubiquitous wireless sensors and Internet of Things devices. In this context, piezoelectric and/or triboelectric materials offer a relatively simple means of directly converting mechanical energy from ubiquitous ambient vibrating sources into electrical power for microscale/nanoscale device applications. In particular, nanoscale energy harvesters, or nanogenerators, are capable of converting low-level ambient vibrations into electrical energy, thus are vital to the realization of the next generation of self-powered devices. Polymer-based nanogenerators are attractive as they are inherently flexible and robust, making them less prone to mechanical failure which is a key requirement for vibrational energy harvesters. They are also lightweight, easy and cheap to fabricate, lead-free and biocompatible, but in many cases their energy harvesting performance is found lacking in comparison to more commonly studied inorganic materials. Recent advances have been made in developing scalable nanofabrication techniques for flexible and low-cost polymer-based nanogenerators with improved energy conversion efficiency, including the incorporation of high-quality polymer nanowires with enhanced crystallinity, piezoelectric and/or surface charge properties. In this review, we discuss aspects of nanomaterials growth and energy harvester device design, including those involving nanowires of polymers of polyvinylidene fluoride and its co-polymers, nylon-11, and poly-lactic acid for scalable piezoelectric and triboelectric nanogenerator applications, as well as the design and performance of polymer-ceramic nanocomposite nanogenerators. In particular, we highlight the effects of growth parameters, nanoconfinement, self-poling, surface polarization, crystalline phases, and device assembly on the energy harvesting performance of a range of recently reported nanostructured polymer-based materials and devices.

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Section: Piezoelectric Polymersmentioning

confidence: 99%

Nanostructured polymer-based piezoelectric and triboelectric materials and devices for energy harvesting applications

Jing

Kar‐Narayan

2018

J. Phys. D: Appl. Phys.

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“…19,15 Owing to its bio-piezoelectricity, PLLA is a suitable material for in-vivo applications where biomaterial based self-powered system is particularly relevant. 20,21 In previous, several biomaterials such as, collagen, chitin, cellulose, gelatin, M13 bacteriophage and many others http://pubs.rsc.org/en/content/articlelanding/2017/tb/c7tb01439b#!divAbstract possessing longitudinal piezoelectric coefficient (d 33 ) have been considered as engineering effective materials for developing self-powered systems. [22][23][24][25][26] The thermodynamically stable conformation of PLLA is the α-crystalline form, where the C=O dipoles are randomly oriented along the main chain, resulting non-polarity of PLLA in this form.…”

Section: Introductionmentioning

confidence: 99%

Human skin interactive self-powered wearable piezoelectric bio-e-skin by electrospun poly-l-lactic acid nanofibers for non-invasive physiological signal monitoring

et al. 2017

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“…Some smart materials like poly- l -lactic acid (PLLA) [6], polyvinylidene fluoride (PVDF) [7], polyhydroxybutyrate (PHB) [8], and polyhydroxybutyrate-co-hydroxyvalerate (PHBV) [9] have been successfully used to produce scaffolds. PVDF, PLLA, PHB, and PHBV are piezoelectric, producing local electric potentials upon mechanical stimulation [10,11,12]. Many tissues in the human body show this property, such as skin, bone, muscle, and tendon, thus, smart materials can also provide this stimulus capable of enhancing tissue differentiation [13,14].…”

Section: Introductionmentioning

confidence: 99%

Tailored Biodegradable and Electroactive Poly(Hydroxybutyrate-Co-Hydroxyvalerate) Based Morphologies for Tissue Engineering Applications

Amaro

Correia

Marques‐Almeida

et al. 2018

IJMS

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Polymer-based piezoelectric biomaterials have already proven their relevance for tissue engineering applications. Furthermore, the morphology of the scaffolds plays also an important role in cell proliferation and differentiation. The present work reports on poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV), a biocompatible, biodegradable, and piezoelectric biopolymer that has been processed in different morphologies, including films, fibers, microspheres, and 3D scaffolds. The corresponding magnetically active PHBV-based composites were also produced. The effect of the morphology on physico-chemical, thermal, magnetic, and mechanical properties of pristine and composite samples was evaluated, as well as their cytotoxicity. It was observed that the morphology does not strongly affect the properties of the pristine samples but the introduction of cobalt ferrites induces changes in the degree of crystallinity that could affect the applicability of prepared biomaterials. Young’s modulus is dependent of the morphology and also increases with the addition of cobalt ferrites. Both pristine and PHBV/cobalt ferrite composite samples are not cytotoxic, indicating their suitability for tissue engineering applications.

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Film Sensor Device Fabricated by a Piezoelectric Poly(L-lactic acid) Film

Cited by 65 publications

References 19 publications

Nanostructured polymer-based piezoelectric and triboelectric materials and devices for energy harvesting applications

Nanostructured polymer-based piezoelectric and triboelectric materials and devices for energy harvesting applications

Human skin interactive self-powered wearable piezoelectric bio-e-skin by electrospun poly-l-lactic acid nanofibers for non-invasive physiological signal monitoring

Tailored Biodegradable and Electroactive Poly(Hydroxybutyrate-Co-Hydroxyvalerate) Based Morphologies for Tissue Engineering Applications

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