Inner egg shell membrane based bio-compatible capacitive and piezoelectric function dominant self-powered pressure sensor array for smart electronic applications

Saqib, Qazi Muhammad; Khan, Muhammad Umair; Bae, Jinho

doi:10.1039/d0ra02949a

Cited by 24 publications

(25 citation statements)

References 64 publications

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“…Inspired by the natural microstructures, we utilized the eggshell inner membrane (ESIM) as the template of the PDMS dielectric layer. Compared with other templates, the unique fibrous ESIM provided the nanoscale-template with a more elaborated microstructure 47 . We could achieve abundant micro-fluctuations from the ESIM, which contributes to the remarkable deformation of the PDMS dielectric layer under the external stimuli.…”

Section: Introductionmentioning

confidence: 99%

Microstructured capacitive sensor with broad detection range and long-term stability for human activity detection

Liu

Shen

et al. 2021

npj Flex Electron

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In recent years, flexible stress sensors capable of monitoring diverse body movements and physiological signals have been attracting great attention in the fields of healthcare systems, human–machine interfaces, and wearable electronics. Inspired by the structure of natural eggshell inner membrane (ESIM), we developed a pressure sensor based on MXene (Ti3C2Tx)/Ag NWs (silver nanowires) composite electrodes and the micro-structured dielectric layer to meet the application requirements of wide detection range and long-term stability for the sensors. In the light of the nanoscale-microarray of the dielectric layer and the rough surface of electrode materials, this pressure sensor is expected to allow great and persistent deformation during the loading process. As a result, the device is characterized by an improved sensitivity, fast response (in the millisecond range), wide detection range (0–600 kPa), and long-term stability. The outstanding performance of the proposed sensor makes it possible to detect various human activities, such as speaking, air blowing, clenching, walking, finger/knee/elbow bending, and striking, demonstrating its good application prospects in wearable and flexible electronic devices.

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Section: Introductionmentioning

confidence: 99%

Microstructured capacitive sensor with broad detection range and long-term stability for human activity detection

Liu

Shen

et al. 2021

npj Flex Electron

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“…[ 3–6 ] These unconventional harvesting ways can save the environment and make the user's lives safer. [ 7,8 ] After the evolutional change made by Z. L. Wang group in the field of energy harvesting as tribo‐electric nanogenerators (TENGs), [ 9 ] plenty of research has been conducted to improve the efficiency, power‐generation, and bio‐compatibility. [ 6,10,11 ] Moreover, as a more durable, highly stable, efficient, and excellently sensitive device, the piezo‐electric nanogenerators (PENGs) [ 5 ] are also getting more and more attention these days.…”

Section: Introductionmentioning

confidence: 99%

“…[ 13–15 ] However, these synthesized materials seriously muddle the natural environment because of the toxic behavior and expensive synthetic processes. [ 7,8,16 ]…”

Section: Introductionmentioning

confidence: 99%

“…[13][14][15] However, these synthesized materials seriously muddle the natural environment because of the toxic behavior and expensive synthetic processes. [7,8,16] Extensive research has been done so far to study the piezoelectric effect in natural materials. [17] The piezo-electricity in the bio-materials has been reported previously in silk, [18] bacteriophages, [19] eggshell membrane, [20] chitin, [21] and collagens.…”

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confidence: 99%

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Natural Hierarchically Structured Highly Porous Tomato Peel Based Tribo‐ and Piezo‐Electric Nanogenerator for Efficient Energy Harvesting

Saqib

Khan

Song

et al. 2021

Advanced Sustainable Systems

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These unconventional harvesting ways can save the environment and make the user's lives safer. [7,8] After the evolutional change made by Z. L. Wang group in the field of energy harvesting as tribo-electric nanogenerators (TENGs), [9] plenty of research has been conducted to improve the efficiency, power-generation, and biocompatibility. [6,10,11] Moreover, as a more durable, highly stable, efficient, and excellently sensitive device, the piezo-electric nanogenerators (PENGs) [5] are also getting more and more attention these days. The electrical energy can easily be generated from TENG/PENG by mechanical motions originated from wind, ocean, and human body actions. Up to the date, remarkably high voltage, current, and power has been achieved from these technologies along with easy fabrication, light weight, and excellent durability. [12] The researchers have previously reported many laboratory synthesized materials (ZnO, ZnSnO 3 , SrTiO 3 , BaTiO 3, etc.) for the piezo-and TENGs. [13][14][15] However, these synthesized materials seriously muddle the natural environment because of the toxic behavior and expensive synthetic processes. [7,8,16] Extensive research has been done so far to study the piezoelectric effect in natural materials. [17] The piezo-electricity in the bio-materials has been reported previously in silk, [18] bacteriophages, [19] eggshell membrane, [20] chitin, [21] and collagens. [22] Among these materials, the collagen fibrils are abundant in organic tissues, fruits, vegetables, and other plants. The intermolecular hydrogen bonding in the collagen fibrils creates a uniaxial orientation of the molecular dipoles responsible for To mitigate future global energy challenges, it is vital to utilize natural resources to harness sustainable and environmentally-friendly energy. This paper explores the tribo-and piezo-electric functionalities of tomato peel (TP) to fabricate a nature-driven hybrid nanogenerator. Tomato is one of the most cultivated vegetables globally, however, a significant amount of TP is disposed after utilization in the food processing industries. The TP possesses a natural hierarchically placed highly porous structure, which is helpful to enhance the output performance of both piezo-and tribo-electric devices. This work shows that a TP based piezo-electric nanogenerator can produce an open circuit voltage of 24.5 V, short circuit current of 2.5 µA, and maximum instantaneous power of 19.5 µW. In addition, the TP based tribo-electric nanogenerator generates open circuit voltage, short circuit current, and instantaneous power of 135 V, 81 µA, and 3750 µW, respectively. Combining two NGs functionalities, the proposed TP based tribo-and piezo-electric nanogenerator (TP-TPENG) shows enhanced output performance with the rectified open circuit voltage, short circuit current, and maximum instantaneous power of 150 V, 84 µA, and 5400 µW, respectively. These results show that the TP-TPENG can offer a new pathway toward bio-based nanogeneration and self-powered sensing green technologies.

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“…The responsivity of the sensor depends on the surface area of sensing material exposed to water content. Although different materials with humidity-sensing properties have been investigated, including metal oxides, carbon nanotubes, polymers, composites and semiconductor nanoparti-cles [10][11][12][13][14][15][16], new functional materials for sensing humidity responses are still required to further improve responsivity capabilities, sensitivity and reliability.…”

Section: Introductionmentioning

confidence: 99%

A Full-Range Flexible and Printed Humidity Sensor Based on a Solution-Processed P(VDF-TrFE)/Graphene-Flower Composite

et al. 2021

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A novel composite based on a polymer (P(VDF-TrFE)) and a two-dimensional material (graphene flower) was proposed as the active layer of an interdigitated electrode (IDEs) based humidity sensor. Silver (Ag) IDEs were screen printed on a flexible polyethylene terephthalate (PET) substrate followed by spin coating the active layer of P(VDF-TrFE)/graphene flower on its surface. It was observed that this sensor responds to a wide relative humidity range (RH%) of 8–98% with a fast response and recovery time of 0.8 s and 2.5 s for the capacitance, respectively. The fabricated sensor displayed an inversely proportional response between capacitance and RH%, while a directly proportional relationship was observed between its impedance and RH%. P(VDF-TrFE)/graphene flower-based flexible humidity sensor exhibited high sensitivity with an average change of capacitance as 0.0558 pF/RH%. Stability of obtained results was monitored for two weeks without any considerable change in the original values, signifying its high reliability. Various chemical, morphological, and electrical characterizations were performed to comprehensively study the humidity-sensing behavior of this advanced composite. The fabricated sensor was successfully used for the applications of health monitoring and measuring the water content in the environment.

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Inner egg shell membrane based bio-compatible capacitive and piezoelectric function dominant self-powered pressure sensor array for smart electronic applications

Abstract: Inner egg shell membrane based bio-compatible capacitive and self-powered piezoelectric pressure sensor array is proposed, with capacitive sensitivity of 37.54 ± 1.488 MPa−1 (0 ≤ P ≤ 0.05 MPa) and piezoelectric pressure sensitivity of 16.93 V MPa−1 (0 ≤ P ≤ 0.098 MPa).

Cited by 24 publications

References 64 publications

Microstructured capacitive sensor with broad detection range and long-term stability for human activity detection

Microstructured capacitive sensor with broad detection range and long-term stability for human activity detection

Natural Hierarchically Structured Highly Porous Tomato Peel Based Tribo‐ and Piezo‐Electric Nanogenerator for Efficient Energy Harvesting

A Full-Range Flexible and Printed Humidity Sensor Based on a Solution-Processed P(VDF-TrFE)/Graphene-Flower Composite

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