Biodegradable, electro-active chitin nanofiber films for flexible piezoelectric transducers

Kim, Kyung‐Tae; Ha, Minjeong; Choi, Byeongwook; Joo, Se Hun; Kang, Han Sol; Park, Jae Young; Gu, Bongjun; Park, Chanho; Park, Cheolmin; Kim, Jong-Bok; Kwak, Sang Kyu; Ko, Hyunhyub; Jin, Jungho; Kang, Seok Ju

doi:10.1016/j.nanoen.2018.03.056

Cited by 127 publications

(117 citation statements)

References 59 publications

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“…g) Schematic diagram for a single pVIII protein with tunable dipole strength through modulating the glutamates number (E; yellow) at its N-terminus. Furthermore, the piezoelectric nature of the electroactive chitin is confirmed from PFM analysis studied by Kang et al [115] Electrospun aligned chitin nanofibers exhibited higher piezoelectric strength than randomly oriented electrospun nanofibers, strongly supported by PFM analysis (Figure 9i). Error bars show one standard deviation.…”

Section: Wwwadvancedsciencenewscomsupporting

confidence: 54%

“…[110] Copyright 1975, WILEY-VCH. Kang et al [115] recently discussed the piezoelectric effect of electroactive nanofiber chitin films and effectively used for flexible, sensible piezoelectric transducers. Reproduced with permission.…”

Section: Polysaccharides Based Materialsmentioning

confidence: 99%

“…Further, strain (S)-electric field (E) hysteresis loop with butterfly shaped confirmed its converse piezoelectric coefficient and obtained to be ≈0.09 V m N −1 (Figure 5c). [115] Copyright 2018, Elsevier. A slight difference in Pr values confirmed its inbuilt self-polarization nature.…”

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

“…Further, the absorption peaks exhibit at ≈2969, ≈2913, and at ≈1730 cm −1 , respectively, represent the CH stretching, and carbonyl group (CO) in cellulose fibers. [115] Copyright 2018, Elsevier. The presence of CO and N containing bioligands were evident by peaks at ≈1470 and ≈669 cm −1 .…”

Section: Polysaccharides Based Materialsmentioning

confidence: 99%

“…[107] Similar way, the XRD analysis (Figure 7f) of PS was showing three peaks at 2θ ≈ 20°, 9.3°, and 23.4° which were corresponding to (110), (020), and (130) planes, respectively. [115] FTIR analysis (Figure 7i) was carried out with spin coated chitin fibers and mixed αand β-crystalline phases are obtained by the appearances of multiple and broad peaks at ≈1630, ≈1620, and ≈1660 cm −1 where more than 70% β-crystalline phase region is present. [140] FTIR analysis was (Figure 7g) also studied in order to know the existence of amide bond and their associated H-bonding in the crystalline chitin nanofibers.…”

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

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Nature Driven Bio‐Piezoelectric/Triboelectric Nanogenerator as Next‐Generation Green Energy Harvester for Smart and Pollution Free Society

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Electronics wastes (e‐wastes) are the major concern in the rapid expansion of smart/wearable/portable electronics in modern high‐tech society. Informal processing and enormous gathering of e‐wastes can lead to adverse human/animal health effects and environmental pollution worldwide. Currently, these issues are a big headache and require the scientific community to develop effective green energy harvesting technologies using biodegradable/biocompatible materials. Piezoelectric/triboelectric nanogenerators (PNGs/TNGs) are considered one of the most promising renewable green energy sources for the conversion of mechanical/biomechanical energies into electricity. However, organic/inorganic material based PNGs/TNGs are very much incompatible, and considered e‐wastes for their non‐biodegradability. This review covers potential uses of biodegradable/biocompatible materials which are wasted every day as nature driven material based bio‐nanogenerators with a particular focus on their applications in flexible PNGs/TNGs fabrication. Structural investigation and possible working principles are described first in order to outline the basic mechanism of bio‐inspired materials behind energy harvesting. Then, energy harvesting abilities and the mechanical sensing of bio‐inspired integrated flexible devices are discussed under various mechanical/biomechanical activities. Finally, their potential applications in various flexible, wearable, and portable electronic fields are demonstrated. These bio‐inspired energy harvesting devices can make huge changes in fields as diverse as portable electronics, in vitro/in vivo biomedical applications, and many more.

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Section: Wwwadvancedsciencenewscomsupporting

confidence: 54%

Section: Polysaccharides Based Materialsmentioning

confidence: 99%

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

Section: Polysaccharides Based Materialsmentioning

confidence: 99%

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

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Nature Driven Bio‐Piezoelectric/Triboelectric Nanogenerator as Next‐Generation Green Energy Harvester for Smart and Pollution Free Society

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Chitin and Chitosan—Foremost Hybrid Piezoelectric Materials for Energy Harvesting Applications

Banerjee,

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2024

Hybrid Materials for Piezoelectric Energy Harvesting and Conversion

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Mimicking Human and Biological Skins for Multifunctional Skin Electronics

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Park

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et al. 2019

Adv Funct Materials

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Electronic skin (e-skin) technology is an exciting frontier to drive the next generation of wearable electronics owing to its high level of wearability, enabling high accuracy to harvest information of users and their surroundings. Recently, biomimicry of human and biological skins has become a great inspiration for realizing novel wearable electronic systems with exceptional multifunctionality as well as advanced sensory functions. This review covers and highlights bioinspired e-skins mimicking perceptive features of human and biological skins. In particular, five main components in tactile sensation processes of human skin are individually discussed with recent advances of e-skins that mimic the unique sensing mechanisms of human skin. In addition, diverse functionalities in user-interactive, skinattachable, and ultrasensitive e-skins are introduced with the inspiration from unique architectures and functionalities, such as visual expression of stimuli, reversible adhesion, easy deformability, and camouflage, in biological skins of natural creatures. Furthermore, emerging wearable sensor systems using bioinspired e-skins for body motion tracking, healthcare monitoring, and prosthesis are described. Finally, several challenges that should be considered for the realization of next-generation skin electronics are discussed with recent outcomes for addressing these challenges.

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Biodegradable, electro-active chitin nanofiber films for flexible piezoelectric transducers

Cited by 127 publications

References 59 publications

Nature Driven Bio‐Piezoelectric/Triboelectric Nanogenerator as Next‐Generation Green Energy Harvester for Smart and Pollution Free Society

Nature Driven Bio‐Piezoelectric/Triboelectric Nanogenerator as Next‐Generation Green Energy Harvester for Smart and Pollution Free Society

Chitin and Chitosan—Foremost Hybrid Piezoelectric Materials for Energy Harvesting Applications

Mimicking Human and Biological Skins for Multifunctional Skin Electronics

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