Fast 3D Printing with Chitosan/Polyvinyl alcohol/Graphene Oxide Multifunctional Hydrogel Ink that has UltraStretch Properity

Hao, Feiyue; Maimaitiyiming, Xieraili

doi:10.1002/slct.202200201

Cited by 8 publications

(4 citation statements)

References 33 publications

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“…Currently, 3D printing-based technologies for the development of wearable sensors such as glucose sensors, artificial skin, sweat sensors, tactile sensors, microfluidic biosensors, strain sensors, pressure sensors, wearable oximeters are attracting great interest in the field of healthcare [113][114][115][116]. Hao et al used CS prepared under alkaline conditions for rapid 3D printing of composite multifunctional hydrogels [117]. Figure 10a shows a schematic diagram of 3D printing using CS hydrogel ink.…”

Section: Three-dimensional Printed Cs Hydrogel Sensorsmentioning

confidence: 99%

Recent Advances in Chitosan-Based Hydrogels for Flexible Wearable Sensors

Zhao

et al. 2023

Chemosensors

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Flexible wearable sensors show great potential for applications in wearable devices, remote health monitoring, artificial intelligence, soft robotics, and artificial skin due to their stretchability, bendability, thinness and portability, and excellent electrical properties. Hydrogels have tunable mechanical properties, excellent biocompatibility, and flexibility, making them attractive candidates for wearable flexible sensors. Among them, tremendous efforts have focused on the advancement of chitosan-based hydrogels (CS-Gels) to realize multifunctional wearable sensing by modifying hydrogel networks with additives/nanofillers/functional groups. Recently, remarkable progress has been made in flexible wearable sensors. Herein, this review summarizes recent advances in CS-Gels wearable sensors for applications such as human motion monitoring, health monitoring, human-machine interface and soft robotics. Representative synthesis methods and strategies for CS-Gels are briefly described, the problems and deficiencies of CS-Gels for wearable sensors are discussed. Finally, the possible opportunities and challenges for the future development of CS-Gels flexible wearable devices are proposed.

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Section: Three-dimensional Printed Cs Hydrogel Sensorsmentioning

confidence: 99%

Recent Advances in Chitosan-Based Hydrogels for Flexible Wearable Sensors

Zhao

et al. 2023

Chemosensors

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“…Currently, hydrogels are attracting much attention due to their skin‐like properties [28–33] . Hydrogel‐based wearable sensors with high stretchability, high flexibility, and high biocompatibility have been used for electronic skin and medical health [34] .…”

Section: Introductionmentioning

confidence: 99%

“…[27] Currently, hydrogels are attracting much attention due to their skin-like properties. [28][29][30][31][32][33] Hydrogel-based wearable sensors with high stretchability, high flexibility, and high biocompatibility have been used for electronic skin and medical health. [34] For instance, Ge et al [35] prepared a binary networked conductive hydrogel using acrylamide and polyvinyl alcohol.…”

Section: Introductionmentioning

confidence: 99%

Flexible Multimodal Sensor Based on Double‐network Hydrogel for Human and Robotic Applications

Zou

Zhang

et al. 2023

ChemistrySelect

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With the development of wearable technology, there are higher requirements for wearable sensors, such as multimodal sensing, superior mechanical properties, and simple and easy‐to‐fabricate structures. However, it is difficult for existing flexible sensors to possess all these advantages simultaneously. Herein, a flexible multimodal sensor based on sodium alginate/polyvinyl alcohol/graphene oxide double‐network hydrogel was prepared. The multiple hydrogen bonds between the two networks provided the gel with great mechanical properties. In addition, the flexibility and easy‐to‐fabricate simple structure of hydrogels were ideal for wearable sensors. In particular, the hydrogel sensors have a temperature sensitivity of up to 2.81 %/°C between −20 °C and 55 °C and pressure sensitivity of 0.03 kPa−1, both of which have excellent properties of stability and repeatability. Besides, the sensor also presented a humidity sensitivity of 0.027 % RH−1. This work also applied hydrogel sensors to practical applications and provided a new idea for wearable technology.

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“…Hydrogels are similar in structure and chemistry to soft tissues, including cartilage and tendons [1,2]. Likewise, conductive hydrogels are created by mixing them with conductive materials, such as polyaniline [3], polypyrrole [4], poly(3,4-ethylenedioxythiophene)/polystyrene sulfonic acid (PEDOT/PSS) [5], Mexen [6], carbon nanotubes [7], and graphene oxide [8], giving cellulose good conductive properties. Hydrogels have, consequently, attracted much interest in smart sensing [9,10], wearable devices [11][12][13], and tissue engineering [14,15].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Nanocellulose Whisker/Polyacrylamide/Xanthan Gum Double Network Conductive Hydrogels

Wang

2023

Coatings

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Hydrogels’ poor mechanical and recovery characteristics inhibited their application as a plastic deformable three-dimensional cross-linked network polymer with electrical properties for intelligent sensing and human motion detection. Cellulose has also been added to the hydrogel to enhance its mechanical properties. The hydrogel has been enhanced this way, and the double-network hydrogel has superior recovery and mechanical capabilities. This study used the traditional free radical polymerization method to prepare double-mesh hydrogels, with polyacrylamide as the backbone network, xanthan gum double-helix structure, and Al3+ complex structure as the second cross-linked network, and endowing the hydrogels with good mechanical recovery and mechanical properties. Adding cellulose nanowafers (CNWs) improved the mechanical properties of the hydrogels. The hydrogel could detect body movements and various postures in the same environment. Moreover, the hydrogel has excellent recovery, mechanical properties, and tensile strain; the maximum fracture stress is 0.14 MPa, and the maximum strain is 707.1%. In addition, Fourier infrared spectroscopy (FTIR) of xanthan gum and Xanthan gum—Al3+ were analyzed, and thermogravimetric analysis (TGA) and LCR bridge were used to analyze the properties of hydrogels. Notably, hydrogel-based wearable sensors have been successfully constructed to detect human movement. Its mechanical properties, sensitivity, and wide range of properties make hydrogel a great potential for various applications in wearable sensors.

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Fast 3D Printing with Chitosan/Polyvinyl alcohol/Graphene Oxide Multifunctional Hydrogel Ink that has UltraStretch Properity

Cited by 8 publications

References 33 publications

Recent Advances in Chitosan-Based Hydrogels for Flexible Wearable Sensors

Recent Advances in Chitosan-Based Hydrogels for Flexible Wearable Sensors

Flexible Multimodal Sensor Based on Double‐network Hydrogel for Human and Robotic Applications

Preparation of Nanocellulose Whisker/Polyacrylamide/Xanthan Gum Double Network Conductive Hydrogels

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