Carbon nanotube-graphene hybrids for soft electronics, sensors, and actuators

Pyo, Soonjae; Eun, Youngkee; Sim, Ji Hoon; Kim, Kwanoh; Choi, Jungwook

doi:10.1186/s40486-022-00151-w

Cited by 17 publications

(9 citation statements)

References 99 publications

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“…This intercalation is proposed to improve the interfacial interactions in the composite. Another reason is the large particle size of the DE that promotes better packing phenomena of filler‐polymer microstructures in the composite 62 . In addition, the higher stress than GNP for hybrid filler was because of the contribution from DE that induced higher stiffness than GNP in the hybrid‐filled system.…”

Section: Resultsmentioning

confidence: 99%

Robust performance for composites using silicone rubber with different prospects for wearable electronics

Kumar,

Alam,

Yewale

et al. 2023

Polymers for Advanced Techs

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The different configurations of the composites originated with machine or human motion, and their mechanical stability for wearable electronics is in focus. Here, the study highlights that these configurations are critical for wearable devices. To achieve these aspects, the electroactive and dielectric silicone rubber (SR) was used as a host matrix. This SR not only provides flexibility, twisting, or stretchability for such devices, but its lightweight makes them comfortable for robust wearable devices. The reinforcing fillers such as graphite nanoplatelets (GNP) or diatomaceous earth (DE) and their hybrids are used. The electromechanical properties of the device were performed using the universal testing machine. The output voltage generated at 15 phr filler was 0.3 mV (GNP), 0.15 mV (DE), and 0.22 mV (hybrid). Similarly, the biomechanical properties were studied with human motion joints such as thumb pressing or wrist bending. The output voltage at 15 phr was best for thumb pressing and it was 0.42 mV (GNP), 0.18 mV (DE), and 0.25 mV (hybrid). In the same way, the mechanical aspects studied in this work are compressive modulus, tensile strength, and fracture strain. For example, the compressive modulus was 1.28 MPa (control) and increased at 15 phr filler to 2.44 MPa (GNP), 3.2 MPa (DE), and 2.75 MPa (hybrid). Similarly, the mechanical stretchability of the devices was 134% (control) and changed at 15 phr filler to 128% (GNP), 78% (DE), and 109% (hybrid). Overall, the work demonstrates the method to develop a device with high mechanical, electromechanical, and biomechanical properties and their usefulness for wearable electronic devices.

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Section: Resultsmentioning

confidence: 99%

Robust performance for composites using silicone rubber with different prospects for wearable electronics

Kumar,

Alam,

Yewale

et al. 2023

Polymers for Advanced Techs

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“…Because of their inherent flexibility, electrochemical stability, and high carrier mobility, CNTs and graphene have been extensively studied for the development of flexible electronic devices. The lattice structures of CNTs and graphene are particularly useful for increasing mechanical strength and reducing contact resistance [ 35 ]. Overall, carbon nanomaterials appear to be promising for developing high-performance and biocompatible electronic devices.…”

Section: Nanomaterials and Hydrogels For Biohybrid Hybrogelsmentioning

confidence: 99%

Nanomaterial-based biohybrid hydrogel in bioelectronics

Shin

Lim

et al. 2023

Nano Convergence

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Despite the broadly applicable potential in the bioelectronics, organic/inorganic material-based bioelectronics have some limitations such as hard stiffness and low biocompatibility. To overcome these limitations, hydrogels capable of bridging the interface and connecting biological materials and electronics have been investigated for development of hydrogel bioelectronics. Although hydrogel bioelectronics have shown unique properties including flexibility and biocompatibility, there are still limitations in developing novel hydrogel bioelectronics using only hydrogels such as their low electrical conductivity and structural stability. As an alternative solution to address these issues, studies on the development of biohybrid hydrogels that incorporating nanomaterials into the hydrogels have been conducted for bioelectronic applications. Nanomaterials complement the shortcomings of hydrogels for bioelectronic applications, and provide new functionality in biohybrid hydrogel bioelectronics. In this review, we provide the recent studies on biohybrid hydrogels and their bioelectronic applications. Firstly, representative nanomaterials and hydrogels constituting biohybrid hydrogels are provided, and next, applications of biohybrid hydrogels in bioelectronics categorized in flexible/wearable bioelectronic devices, tissue engineering, and biorobotics are discussed with recent studies. In conclusion, we strongly believe that this review provides the latest knowledge and strategies on hydrogel bioelectronics through the combination of nanomaterials and hydrogels, and direction of future hydrogel bioelectronics. Graphical Abstract

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“…Therefore, analyzing the combination of graphene (and graphene derivatives) with other fillers to enhance rubber materials is essential. So, the research of graphene (and graphene derivative) hybrid fillers/rubber composites which include different preparation methods and enhanced properties, and the application of these composites, has been widely reported in recent years [ 8 , 29 , 30 , 31 , 32 ]. To ensure that graphene can exert the same enhancement and modification effects on the hybrid fillers as those observed when graphene is added individually, three issues must be addressed: (1) Graphene (graphene derivatives) and other fillers must be well dispersed in the rubber matrix.…”

Section: Introductionmentioning

confidence: 99%

Graphene-Based Hybrid Fillers for Rubber Composites

Wang,

Li,

Yang

et al. 2024

Molecules

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Graphene and its derivatives have been confirmed to be among the best fillers for rubber due to their excellent properties, such as high mechanical strength, improved interface interaction, and strain-induced crystallization capabilities. Graphene rubber materials can be widely used in tires, shoes, high-barrier conductive seals, electromagnetic shielding seals, shock absorbers, etc. In order to reduce the graphene loading and endow more desirable functions to rubber materials, graphene-based hybrid fillers are extensively employed, which can effectively enhance the performance of rubber composites. This review briefly summarizes the recent research on rubber composites with graphene-based hybrid fillers consisting of carbon black, silica, carbon nanotubes, metal oxide, and one-dimensional nanowires. The preparation methods, performance improvements, and applications of different graphene-based hybrid fillers/rubber composites have been investigated. This study also focuses on methods that can ensure the effectiveness of graphene hybrid fillers in reinforcing rubber composites. Furthermore, the enhanced mechanism of graphene- and graphene derivative-based hybrid fillers in rubber composites is investigated to provide a foundation for future studies.

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Carbon nanotube-graphene hybrids for soft electronics, sensors, and actuators

Cited by 17 publications

References 99 publications

Robust performance for composites using silicone rubber with different prospects for wearable electronics

Robust performance for composites using silicone rubber with different prospects for wearable electronics

Nanomaterial-based biohybrid hydrogel in bioelectronics

Graphene-Based Hybrid Fillers for Rubber Composites

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