A transparent, ultrastretchable and fully recyclable gelatin organohydrogel based electronic sensor with broad operating temperature

Qin, Zhihui; Sun, Xia; Zhang, Haitao; Yu, Qingyu; Wang, Xueyuan; He, Shaoshuai; Yao, Fanglian; Li, Junjie

doi:10.1039/c9ta13196e

Cited by 162 publications

(142 citation statements)

References 52 publications

Supporting

Mentioning

142

Contrasting

Order By: Relevance

“…In order to promote the tensile property of ionic hydrogels, Yao et al prepared a stretchable and fully recyclable electronic sensor by simply immersing gelatin in sodium citrate (Na 3 Cit) water/glycerol solutions (Figure 7A). 49 The existence of Na 3 Cit in the hydrogel not only induced the formation of multiple noncovalent cross‐linking points to improve the mechanical performance (155.0 kPa) but also increased the ionic conductivity (0.47 S/m). The gel was crosslinked via three types of non‐covalent interactions, including triple helix structures based on hydrogen bonds of gelatin chains, hydrophobic aggregation, and ionic interaction between the –NH 3 + cations of gelatin and Cit 3− anions.…”

Section: The Intrinsic Type Of Fully Recyclable Electronic Sensormentioning

confidence: 99%

Polymer‐assisted fully recyclable flexible sensors

Tao

Liao

Wang

2021

EcoMat

View full text Add to dashboard Cite

The increasing number of electronic sensors after their disposal is leading to severe environmental threatens due to the release of heavy metals or other nonrecyclable semiconductors in sensing units and have raised worldwide interest in the design of electronic sensors with longer-term service life in order to reduce the discharge of electrical pollutants. From this point of view, there have been a great number of examples relevant to electronic sensors with self-healing or recyclable properties. Unlike the enormous studies paid to selfhealing electronic sensors, a limited number of fully recyclable sensors have been exploited and there is no review article relevant to this topic so far. This minireview aims to summarize the recent progresses of electronic sensors that could be shredded and reshaped with the assistance of recyclable polymers.Two types of fully recyclable electronic sensors are mainly focused, including blended type via blending sensing conductors in the polymer matrix and intrinsic type composed of sensing polymers. According to their classification, we specifically demonstrate the basic design principle, recycling procedure, and sensing performance of those different types of recyclable electronic sensors. At last, a brief discussion regarding the remaining challenges and future perspectives of this new research area is delivered which hopefully provides inspirations to develop more fully recyclable electronic sensors with versatile functions.

show abstract

Section: The Intrinsic Type Of Fully Recyclable Electronic Sensormentioning

confidence: 99%

Polymer‐assisted fully recyclable flexible sensors

Tao

Liao

Wang

2021

EcoMat

View full text Add to dashboard Cite

show abstract

“…Gelatin can form weak and brittle gels by forming triple-helices and weak physical crosslinked networks. With the great biocompatibility, it is greatly interesting to fabricate tough gelatin gels for biomedical applications [ 1 , 23 , 46 ]. Here, we fabricated the glycerol-based gelatin organohydrogels with the two synthesis strategies, and the mechanical properties were also determined ( Figure 7 ).…”

Section: Resultsmentioning

confidence: 99%

“…After solvent displacement, the obtained organohydrogels exhibited low temperature tolerance down to −70 °C [ 15 ]. Since then, due to its universality, solvent displacement became another popular strategy to synthesize the environment-adaptable organohydrogels [ 23 , 24 , 27 , 28 , 34 , 40 , 41 , 42 , 43 , 44 , 45 , 46 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis Antifreezing and Antidehydration Organohydrogels: One-Step In-Situ Gelling versus Two-Step Solvent Displacement

Deng

Zhou

2020

Polymers

View full text Add to dashboard Cite

Organohydrogels with distinct antifreezing and antidehydration properties have aroused great interest among researchers, and various organohydrogels and organohydrogel-based applications have emerged recently. There are two popular synthesis strategies to prepare these antifreezing and antidehydration organohydrogels: the in-situ gelling and the solvent displacement strategies. Although both strategies have been widely applied, there is a lack of comparative study of these two strategies. In this work, to elucidate the comparative advantages of the two synthesis strategies, we studied and compared the mechanical and environmental tolerant properties of the organohydrogels synthesized from both strategies. The glycerol-based and ethylene glycol-based chemical polyacrylamide (PAAm) organohydrogel and the glycerol-based physical gelatin organohydrogel were synthesized and studied. Through the comparative study, we have found that the organohydrogels from different strategies with the same dispersion medium showed similar antifreezing and antidehydration properties but different mechanical properties. The mechanical properties of these organohydrogels are influenced by two opposite factors for each strategy: the enhanced physical interactions induced strengthening and solvent effect or swelling induced weakening. We hope this study may provide a better understanding of the synthesis strategies of organohydrogels and provide a valuable guide to choose the suitable synthesis strategy for each application.

show abstract

“…The synchronized delivery and control of the signal from human body to detector or actuator are convenient, expeditious, effective, and accurate compared with traditional rigid conducting and semiconducting materials based on smart devices [ 19 , 20 ]. Besides, the excellent stretchability [ 21 , 22 ], transparency [ 23 , 24 , 25 ], wearability [ 7 , 26 , 27 ], and biocompatibility [ 28 , 29 , 30 ] endows flexible and wearable electronics with alluring prospect, which the functions infinitely tend to real human skins or beyond [ 31 , 32 , 33 ].…”

Section: Introductionmentioning

confidence: 99%

Materials, Electrical Performance, Mechanisms, Applications, and Manufacturing Approaches for Flexible Strain Sensors

Han

Chen

et al. 2021

Nanomaterials

View full text Add to dashboard Cite

With the recent great progress made in flexible and wearable electronic materials, the upcoming next generation of skin-mountable and implantable smart devices holds extensive potential applications for the lifestyle modifying, including personalized health monitoring, human-machine interfaces, soft robots, and implantable biomedical devices. As a core member within the wearable electronics family, flexible strain sensors play an essential role in the structure design and functional optimization. To further enhance the stretchability, flexibility, sensitivity, and electricity performances of the flexible strain sensors, enormous efforts have been done covering the materials design, manufacturing approaches and various applications. Thus, this review summarizes the latest advances in flexible strain sensors over recent years from the material, application, and manufacturing strategies. Firstly, the critical parameters measuring the performances of flexible strain sensors and materials development contains different flexible substrates, new nano- and hybrid- materials are introduced. Then, the developed working mechanisms, theoretical analysis, and computational simulation are presented. Next, based on different material design, diverse applications including human motion detection and health monitoring, soft robotics and human-machine interface, implantable devices, and biomedical applications are highlighted. Finally, synthesis consideration of the massive production industry of flexible strain sensors in the future; different fabrication approaches that are fully expected are classified and discussed.

show abstract

A transparent, ultrastretchable and fully recyclable gelatin organohydrogel based electronic sensor with broad operating temperature

Abstract: A green, fully recyclable and stretchable electronic sensor based on ionic conductive gelatin organohydrogels can operate at ultra-low temperature.

Cited by 162 publications

References 52 publications

Polymer‐assisted fully recyclable flexible sensors

Polymer‐assisted fully recyclable flexible sensors

Synthesis Antifreezing and Antidehydration Organohydrogels: One-Step In-Situ Gelling versus Two-Step Solvent Displacement

Materials, Electrical Performance, Mechanisms, Applications, and Manufacturing Approaches for Flexible Strain Sensors

Contact Info

Product

Resources

About