Biosynthesis of thin film derived from microbial chitosan for piezoelectric application

Amran, Anisah; Ahmad, Fawwad; Hatta, Maziati Akmal Mohd; Ralib, Aliza Aini Md; Suhaimi, Muhammad Irsyad

doi:10.1016/j.mtcomm.2021.102919

Cited by 10 publications

(4 citation statements)

References 38 publications

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“…Interestingly, as shown in Figure 4b, the GF of the LM/CHACC organic hydrogel has significantly improved to 8.29 after long‐term freezing. As we know, chitosan is able to exhibit piezoelectricity, where an electric potential is produced corresponding to an applied force 41 . Furthermore, the addition of the piezoelectric phase contributes to the performance of piezoresistive sensing.…”

Section: Resultsmentioning

confidence: 99%

“…As we know, chitosan is able to exhibit piezoelectricity, where an electric potential is produced corresponding to an applied force. 41 Furthermore, the addition of the piezoelectric phase contributes to the performance of piezoresistive sensing. It is important to note that the integrated structure design can protect the intermediate layer and maintain the integrity of the chitosan matrix in three-layer organic hydrogels.…”

Section: Strain and Temperature Sensitivity Of Lm/chacc Organic Hydrogelmentioning

confidence: 99%

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A sandwich‐structure, low‐temperature sensitive and recyclable liquid metal organic hydrogel for a wearable strain sensor

Dong

Wang

et al. 2022

J of Applied Polymer Sci

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Currently, sensors based on hydrogels are less sensitive at low temperatures, and discarded sensors are prone to generate e-waste. Thus, it is challenging to design and prepare novel hydrogels with good properties for wearable sensors. Herein, we report a sandwich-structure liquid metal organic hydrogel with low-temperature sensitive, recyclable and multiple sensation properties. Liquid metal (LM)/cross-linked chitosan quaternary ammonium salt (CHACC) composite is prepared by evaporating ethanol and water co-solvent as the core layer. CHACC is used as the top and the bottom layer respectively. The optimal performance of the organic hydrogel is obtained when the volume ratio of ethanol to water is 1:3. The LM/CHACC organic hydrogel exhibits excellent stretchability (strain: 428.37%). Importantly, it has fast responsiveness, recyclability and excellent low-temperature sensitivity (GF = 8.29) at À20 C. The sensors possess stress-temperature sensation with high sensitivity. Moreover, LM as the conductive filler is recyclable under acidic conditions. We demonstrate the functionality of the LM/CHACC organic hydrogel to detect human joint movements and fine movements at low temperatures. It is anticipated to open up new sensing applications based on LM organic hydrogel-based wearable sensors.

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Section: Resultsmentioning

confidence: 99%

Section: Strain and Temperature Sensitivity Of Lm/chacc Organic Hydrogelmentioning

confidence: 99%

A sandwich‐structure, low‐temperature sensitive and recyclable liquid metal organic hydrogel for a wearable strain sensor

Dong

Wang

et al. 2022

J of Applied Polymer Sci

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“…It has two distinct polymorphs, 𝛼 and ß Chitin. [110] In the early 1970s, Fukada et al [57] found the shear piezoelectricity in the 𝛼-chitin. In a recent study, Kim et al [111] fabricated a biodegradable piezoelectric film made of chitin nanofibers showing good performance and functionality as a flexible piezoelectric device (Figure 3c).…”

Section: Polysaccharidementioning

confidence: 99%

“…It has two distinct polymorphs, α and ß Chitin. [ 110 ] In the early 1970s, Fukada et al. [ 57 ] found the shear piezoelectricity in the α ‐chitin.…”

Section: Polymers and Structuresmentioning

confidence: 99%

Biodegradable Piezoelectric Polymers: Recent Advancements in Materials and Applications

Mohsin

Bathaei

Istif

et al. 2023

Adv Healthcare Materials

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Recent materials, microfabrication, and biotechnology improvements have introduced numerous exciting bioelectronic devices based on piezoelectric materials. There is an intriguing evolution from conventional unrecyclable materials to biodegradable, green, and biocompatible functional materials. As a fundamental electromechanical coupling material in numerous applications, novel piezoelectric materials with a feature of degradability and desired electrical and mechanical properties are being developed for future wearable and implantable bioelectronics. These bioelectronics can be easily integrated with biological systems for applications, including sensing physiological signals, diagnosing medical problems, opening the blood‐brain barrier, and stimulating healing or tissue growth. Therefore, the generation of piezoelectricity from natural and synthetic bioresorbable polymers has drawn great attention in the research field. Herein, the significant and recent advancements in biodegradable piezoelectric materials, including natural and synthetic polymers, their principles, advanced applications, and challenges for medical uses, are reviewed thoroughly. The degradation methods of these piezoelectric materials through in vitro and in vivo studies are also investigated. These improvements in biodegradable piezoelectric materials and microsystems could enable new applications in the biomedical field. In the end, potential research opportunities regarding the practical applications are pointed out that might be significant for new materials research.

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A Comprehensive Review on Piezoelectric Polymeric and Ceramic Nanogenerators

2022

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With the increasing concerns over global warming and the growing demands for electricity, many researchers have considered renewable and sustainable resources for electricity/power generation. [1] Photovoltaics, thermoelectric, and electromagnetic induction are among the well-established technologies for electricity generation. [2] Mechanical energy is one of the most abundant and available resources that can be harvested to generate electricity. For example, mechanical energy is available in the form of human body motion and mechanical vibration. [3][4][5][6] Piezoelectric and triboelectric nanogenerators have both been used for mechanical energy harvesting. In triboelectric nanogenerators, electrical energy originates mainly from friction or temporary contact of two different layers. However, a wide range of deformation modes like bending, stretching, and vibration can generate electricity using piezoelectric nanogenerators (PNGs). The working mechanisms of PNGs are typically easier than triboelectric nanogenerators. [7] In addition, improving electrical output and reproducibility of triboelectric nanogenerators are still challenges. [8] The use of ferroelectric materials is a promising choice for energy harvesting. Ferroelectric materials show both piezoelectric (generation of electrical power from mechanical oscillation) and pyroelectric (generation of electricity from temperature fluctuation) properties. [9,10] Piezoelectric property offers conversion of mechanical energy to electricity. By applying mechanical stress, dipole momentum forms, leading to spontaneous polarization. Consequently, the electric current flows through the piezoelectric materials as a result of charge accumulation. [11] A wide range of piezoelectric materials is used as PNGs. Piezoelectric materials can be categorized into ceramics, polymers, and piezoelectret polymers. Materials with perovskite or wurtzite nanostructures show piezoelectric properties because their crystals are noncentral symmetry. Ceramics with perovskite

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Biosynthesis of thin film derived from microbial chitosan for piezoelectric application

Cited by 10 publications

References 38 publications

A sandwich‐structure, low‐temperature sensitive and recyclable liquid metal organic hydrogel for a wearable strain sensor

A sandwich‐structure, low‐temperature sensitive and recyclable liquid metal organic hydrogel for a wearable strain sensor

Biodegradable Piezoelectric Polymers: Recent Advancements in Materials and Applications

A Comprehensive Review on Piezoelectric Polymeric and Ceramic Nanogenerators

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