Ultrahigh compressibility and superior elasticity carbon framework derived from shaddock peel for high-performance pressure sensing

Zheng, Na; Chen, Changzhou; Tang, Mengqi; Wu, Weixin; Jiang, Yan; Min, Douyong

doi:10.1039/d1ra02978a

Cited by 7 publications

(3 citation statements)

References 72 publications

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“…The aminated lignin (AL) and the lignocellulose carbon framework (C-SPF) derived from the shaddock peel were prepared based on our previous works. , Then, a proportion of AL was added to DA aqueous solution under stirring. The resulting solution was reacted at room temperature for 48 h and freeze-dried to obtain PDA-AL composite nanoparticles.…”

Section: Methodsmentioning

confidence: 99%

“…Recently, our group developed a readily manufactured 3D porous biomass carbon aerogel (C-SPF) with high conductivity from grapefruit peel, 26 which can be used to replace the expensive graphene and carbon nanotube material as the conductive network of the hydrogel. Herein, AL was applied to induce slow oxidative polymerization of DA for preparing the sticky hydrogel containing PDA.…”

Section: ■ Introductionmentioning

confidence: 99%

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Self-Adhesive and Conductive Dual-Network Polyacrylamide Hydrogels Reinforced by Aminated Lignin, Dopamine, and Biomass Carbon Aerogel for Ultrasensitive Pressure Sensor

Chen

Zheng

et al. 2022

ACS Appl. Mater. Interfaces

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Conductive hydrogels have attracted extensive interest owing to its potential in soft robotics, electronic skin, and human monitoring. However, insufficient mechanical properties, lower adhesivity, and unsatisfactory conductivity seriously hinder potential applications in this emerging field. Herein, a highly elastic conductive hydrogel with a combination of favorable mechanical properties, self-adhesiveness, and excellent electrical performance was achieved by the synergistic effect of aminated lignin (AL), polydopamine (PDA), polyacrylamide (PAM) chains, and biomass carbon aerogel (C-SPF). In detail, AL was applied to induce slow oxidative polymerization of DA for preparing the sticky hydrogel containing PDA. Then, C-SPF carbon aerogel was used as a matrix to construct a dual-network structured composite hydrogel by combining with the hydrogels derived from PDA, AL, and PAM. The as-prepared conductive hydrogel displayed excellent mechanical performance, strong adhesive strength, and repeatable adhesivity. The prepared hydrogel-based pressure sensor possessed fast response (0.6 s loading and 0.8 s unloading stress time), high response (maximum RCR = 1.8 × 104), wide working pressure range (from 0 to 240.0 kPa), and excellent durability (stable 500 compression cycles with 30% deformation). In addition, the prepared sensor also displayed ultrahigh sensitivity (170 kPa–1), which was near 4 orders of magnitude higher than the conventional lignin-modified PAM hydrogels. The multiple interactions between hydrogel components and the mechanical properties of hydrogel were also verified by molecular dynamics investigation. Moreover, the excellent cytocompatibility and antibacterial activity of this composite hydrogel ensured high potential in various applications such as human/machine interaction, artificial intelligence, personal healthcare, and wearable devices.

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Section: Methodsmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Self-Adhesive and Conductive Dual-Network Polyacrylamide Hydrogels Reinforced by Aminated Lignin, Dopamine, and Biomass Carbon Aerogel for Ultrasensitive Pressure Sensor

Chen

Zheng

et al. 2022

ACS Appl. Mater. Interfaces

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“…As mentioned above, different carbon-based materials from zero to 2Ds are finally prepared into various types of strain sensors with excellent properties such as high sensitivity, stability, light weight and transparency. These flexible strain sensors are used in a wide range of applications [209,[193][194][195], including but not limited to health monitoring, sports, humanmachine interaction, and visual display. Compared with conventional metal and semiconductor sensors, the strain sensors often offer a high flexibility and deformation capability due to the superior flexibility of substrate itself, which can meet the basic requirements of wearable electronics in practical applications, such as high sensitivity in monitoring human physiological and motion signals, good tensile and compressive performance, comfort, and air permeability on the basis of ensuring certain adhesion.…”

Section: Application Of Flexible Carbon-based Strain Sensorsmentioning

confidence: 99%

0D to 2D carbon-based materials in flexible strain sensors: recent advances and perspectives

Liu

Zhang

et al. 2023

2D Mater.

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In the past decade, flexible strain sensors have attracted much attention in the fields of health care, soft robots and other flexible electronics due to their unique flexibility, high stability, and strong mechanical properties. To further meet the requirements of the excellent performance for electronic equipment, carbon-based conductive sensitive materials have become one of the first choice for the preparation of flexible strain sensors due to their excellent electrical conductivity, mechanical properties, and high compatibility. Herein, based on different strain behaviors, this paper analyzes the working mechanism of tensile and compressive strain sensors, focusing on the latest research progress of carbon-based conductive materials in strain sensors with different dimensions. The applications of carbon-based sensitive materials with multifunctional strain sensing in the areas of physiological information detection, human motion, human-machine interaction, and visual display have also been summarized. Furthermore, it has been attempted to discuss the current challenges of carbon-based strain sensors as well as the prospect of flexible strain sensors. This review is aimed to provide appropriate references for further exploitation of multi-functional flexible carbon-based strain sensors.

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Engineered structural carbon aerogel based on bacterial Cellulose/Chitosan and graphene Oxide/Graphene for multifunctional piezoresistive sensor

Xiang,

Zhang,

Liu

et al. 2024

Chemical Engineering Journal

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Ultrahigh compressibility and superior elasticity carbon framework derived from shaddock peel for high-performance pressure sensing

Abstract: The piezoresistive sensor constructed by a PDMS modified Shaddock peel 3D carbon skeleton has an excellent sensing performance, which has promising potential in the field of human health detection.

Cited by 7 publications

References 72 publications

Self-Adhesive and Conductive Dual-Network Polyacrylamide Hydrogels Reinforced by Aminated Lignin, Dopamine, and Biomass Carbon Aerogel for Ultrasensitive Pressure Sensor

Self-Adhesive and Conductive Dual-Network Polyacrylamide Hydrogels Reinforced by Aminated Lignin, Dopamine, and Biomass Carbon Aerogel for Ultrasensitive Pressure Sensor

0D to 2D carbon-based materials in flexible strain sensors: recent advances and perspectives

Engineered structural carbon aerogel based on bacterial Cellulose/Chitosan and graphene Oxide/Graphene for multifunctional piezoresistive sensor

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