Simple enhanced charge density of chitosan film by the embedded ion method for the flexible triboelectric nanogenerator

Charoonsuk, Thitirat; Supansomboon, Supitcha; Pakawanit, Phakkhananan; Pongampai, Satana; Woramongkolchai, Somsak; Vittayakorn, Naratip

doi:10.1016/j.carbpol.2022.120070

Cited by 23 publications

(4 citation statements)

References 42 publications

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“…17 Also, the presence of cations via the addition of compounds like CaCl 2 was found to increase the charge density of TENGs. 18 Recently, a chitosan matrix loaded with protein-based fillers like albumin, and silk fiber or eggshell membrane loaded was shown to improve the overall efficiency of the TENG. 19 The first reported TENG with porous positive and negative layers was made of a chitosan aerogel and a very porous polyimide film.…”

Section: Introductionmentioning

confidence: 99%

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Chitosan Nanocomposite-Based Triboelectric Nanogenerators with Enhanced Electrical Performance: An Opportunity for Bioelectronics

S.,

Chandran,

Varun

et al. 2024

ACS Appl. Electron. Mater.

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Triboelectric nanogenerators (TENG) based on natural biomaterials are essential for energy-harvesting applications. In this work, an efficient approach was proposed to enhance the electrical performance of chitosan (CS), which is a naturally occurring biopolymer with the incorporation of polyethylenimine-grafted graphene oxide (PEI-GO) nanoparticles. Triboelectric properties of the different weight combinations of PEI-GO in CS were tested against polytetrafluoroethylene (PTFE). An improvement in the mechanical and electrical properties of the nanocomposites was observed in comparison to pure chitosan. Thus, the composite with 10 wt % PEI-GO was used as the positive layer in the TENG device, and an open-circuit voltage (V oc ) of ∼222 V, short circuit current (I sc ) of ∼6.6 μA, and transfer charge (Q sc ) of ∼149.6 nC were observed. Almost a 5.5 fold increase of the output power (∼1465.2 μW) and its power density (∼407 mW/m 2 ) were seen for the nanocomposite in comparison to that of pure CS. The TENG was able to power calculators and wristwatches and light up 126 blue light-emitting diodes (LEDs). Further, a TENG was fabricated with the same polymer (CS and CS nanocomposite) as tribo-layers, where the pure CS polymer acts as the tribo-negative layer and PEI-GOincorporated CS acts as the tribo-positive layer in the CS polymer-based TENG. The device was found to light up 14 white LEDs with the human hand tapping. This study thus presents opportunities for utilizing biomechanical energy found in everyday life to power bioelectronics with bioderived materials.

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Section: Introductionmentioning

confidence: 99%

“…Further, the chitosan@starch composite film and fluorinated ethylene propylene (FEP) film were used to make a transparent TENG for a higher electrical voltage output . Also, the presence of cations via the addition of compounds like CaCl 2 was found to increase the charge density of TENGs …”

Section: Introductionmentioning

confidence: 99%

Chitosan Nanocomposite-Based Triboelectric Nanogenerators with Enhanced Electrical Performance: An Opportunity for Bioelectronics

S.,

Chandran,

Varun

et al. 2024

ACS Appl. Electron. Mater.

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“…Charoonusk et al suggested a method to improve the charge density of chitosan film for TENG output improvement. 30 Cheedarala et al have shown transparent composites based on PVA−chitosan for biomechanical energy harvesting using TENG. 31 Organic proteins blended with chitosan-based membranes were investigated by Vittayakorn et al toward energy harvesting and biodegradable composites.…”

Section: Introductionmentioning

confidence: 99%

“…PVA and chitosan-based composites are versatile and flexible biopolymers that can be used as triboelectric materials owing to their cationic positive polarity materials. Charoonusk et al suggested a method to improve the charge density of chitosan film for TENG output improvement . Cheedarala et al have shown transparent composites based on PVA–chitosan for biomechanical energy harvesting using TENG .…”

Section: Introductionmentioning

confidence: 99%

Sustainable Solutions for Oral Health Monitoring: Biowaste-Derived Triboelectric Nanogenerator

Panda

Hajra

Kim

et al. 2023

ACS Appl. Mater. Interfaces

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Oral healthcare monitoring is a vital aspect of identifying and addressing oral dental problems including tooth decay, gum pain, and oral cancer. Day by day, healthcare facilities and regular checkups are becoming more costly and time-consuming. In this context, consumers are moving toward advanced technology, such as bite sensors, to obtain regular data about their occlusal chewing patterns and strength. The triboelectric nanogenerator (TENG) can potentially eliminate the need for a battery by simply converting abundant vibrations from nature or human motion into electrical energy. In this work, biomaterials are obtained from biowastes such as cellulose from wood waste, chitosan from crab shells, and gelatin from fish scales. All wastes are biodegradable, and our work aims at sustainability and waste hierarchy. The single electrode mode-based TENG was designed and fabricated using biodegradable poly(vinyl alcohol) (PVA)−biomaterial composites, rice paper as a substrate, and edible silver leaf as an electrode. The highest electrical output was obtained for PVA/ chitosan 10 wt % composite-based TENG (PC10) of about 20 V, 200 nA, and 12 nC. The biomechanical energy harvesting was measured, and powering of LED was demonstrated using a PC10 TENG device. A biocompatible bite sensor based on the TENG was used to measure the biting force of a dummy teeth model to demonstrate its potential use in dental health applications. It indicates the promising future value of disposable oral medication devices without any invasive surgery or injection.

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Biopolymer and Biomimetic Techniques for Triboelectric Nanogenerators (TENGs)

Liu,

Chen,

Wang

2024

Advanced Materials

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Triboelectric nanogenerators (TENGs) play a crucial role in attaining sustainable energy for various wearable devices. Polymer materials are essential components of TENGs. Biopolymers are suitable materials for TENGs because of their degradability, natural sourcing, and cost‐effectiveness. Herein, the latest progress in commonly used biopolymers and well‐designed biomimetic techniques for TENG is summarized. The applications of natural rubber, polysaccharides, protein‐based biopolymers, and other common synthetic biopolymers in TENG technology are summarized in detail. Each biopolymer is discussed based on its electrification capability, polarity variations, and specific functionalities as active and functional layers of TENGs. Important biomimetic strategies and related applications of specific biopolymers are also summarized to guide the structural and functional design of TENG. In the future, the study of triboelectric biopolymers may focus on exploring alternative candidates, enhancing charge density, and expanding functionality. Various possible applications of biopolymer‐based TENGs are proposed in this review. By applying biopolymers and related biomimetic methods to TENG devices, the applications of TENG in the fields of healthcare, environmental monitoring, and wearable/implantable electronics can be further promoted.

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Simple enhanced charge density of chitosan film by the embedded ion method for the flexible triboelectric nanogenerator

Cited by 23 publications

References 42 publications

Chitosan Nanocomposite-Based Triboelectric Nanogenerators with Enhanced Electrical Performance: An Opportunity for Bioelectronics

Chitosan Nanocomposite-Based Triboelectric Nanogenerators with Enhanced Electrical Performance: An Opportunity for Bioelectronics

Sustainable Solutions for Oral Health Monitoring: Biowaste-Derived Triboelectric Nanogenerator

Biopolymer and Biomimetic Techniques for Triboelectric Nanogenerators (TENGs)

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