Ultrastretchable High-Conductivity MXene-Based Organohydrogels for Human Health Monitoring and Machine-Learning-Assisted Recognition DOI
Qingqing Li, Xinrong Zhi, Yifan Xia

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2023, Номер 15(15), С. 19435 - 19446

Опубликована: Апрель 10, 2023

Conductive hydrogels as promising candidates of wearable electronics have attracted considerable interest in health monitoring, multifunctional electronic skins, and human-machine interfaces. However, to simultaneously achieve excellent electrical properties, superior stretchability, a low detection threshold conductive remains an extreme challenge. Herein, ultrastretchable high-conductivity MXene-based organohydrogel (M-OH) is developed for human monitoring machine-learning-assisted object recognition, which fabricated based on Ti3C2Tx MXene/lithium salt (LS)/poly(acrylamide) (PAM)/poly(vinyl alcohol) (PVA) hydrogel through facile immersion strategy glycerol/water binary solvent. The M-OH demonstrates remarkable stretchability (2000%) high conductivity (4.5 S/m) due the strong interaction between MXene dual-network PVA/PAM matrix incorporation LS, respectively. Meanwhile, sensor enables with sensitivity limit (12 Pa). Furthermore, pressure mapping image recognition technology, 8 × pixelated M-OH-based sensing array can accurately identify different objects accuracy 97.54% under assistance deep learning neural network (DNN). This work comprehensive performances high-conductive would further explore extensive potential application prospects personal healthcare, interfaces, artificial intelligence.

Язык: Английский

Strong, Tough, and Anti‐Swelling Supramolecular Conductive Hydrogels for Amphibious Motion Sensors DOI
Zhiyuan Sun, Chao Dong,

Bingda Chen

и другие.

Small, Год журнала: 2023, Номер 19(44)

Опубликована: Июль 2, 2023

Conductive polymer hydrogels (CPHs) are widely employed in emerging flexible electronic devices because they possess both the electrical conductivity of conductors and mechanical properties hydrogels. However, poor compatibility between conductive polymers hydrogel matrix, as well swelling behavior humid environments, greatly compromises CPHs, limiting their applications wearable devices. Herein, a supramolecular strategy to develop strong tough CPH with excellent anti-swelling by incorporating hydrogen, coordination bonds, cation-π interactions rigid conducting soft matrix is reported. Benefiting from effective networks, obtained has homogeneous structural integrity, exhibiting remarkable tensile strength (1.63 MPa), superior elongation at break (453%), toughness (5.5 MJ m-3 ). As strain sensor, possesses high (2.16 S m-1 ), wide linear detection range (0-400%), sensitivity (gauge factor = 4.1), sufficient monitor human activities different windows. Furthermore, this resistance been successfully applied underwater sensors for monitoring frog swimming communication. These results reveal new possibilities amphibious sensors.

Язык: Английский

Процитировано

69
Perspectives on recent advancements in energy harvesting, sensing and bio-medical applications of piezoelectric gels DOI Creative Commons
Thangavel Vijayakanth, Sudha Shankar, Gal Finkelstein-Zuta

и другие.

Chemical Society Reviews, Год журнала: 2023, Номер 52(17), С. 6191 - 6220

Опубликована: Янв. 1, 2023

This review highlights the recent progress in piezoelectric gels (also known as PiezoGels) comprised of polymers, ceramic oxides and supramolecular materials used for energy harvesting, sensing wound dressing.

Язык: Английский

Процитировано

67
Cold-resistant, highly stretchable ionic conductive hydrogels for intelligent motion recognition in winter sports DOI

Tongda Lei,

Jiajun Pan,

Ning Wang

и другие.

Materials Horizons, Год журнала: 2023, Номер 11(5), С. 1234 - 1250

Опубликована: Дек. 22, 2023

Conductive hydrogels have attracted much attention for their wide application in the field of flexible wearable sensors due to outstanding flexibility, conductivity and sensing properties. However, weak mechanical properties, lack frost resistance susceptibility microbial contamination traditional conductive greatly limit practical application. In this work, multifunctional polyvinyl alcohol (PVA)/carboxymethyl cellulose (CMC)/poly(acrylamide-

Язык: Английский

Процитировано

66
Liquid Metal-Doped Conductive Hydrogel for Construction of Multifunctional Sensors DOI

Lingtong Zhou,

Yuanchang Li,

Jingcheng Xiao

и другие.

Analytical Chemistry, Год журнала: 2023, Номер 95(7), С. 3811 - 3820

Опубликована: Фев. 7, 2023

Interest in wearable and stretchable multifunctional sensors has grown rapidly recent years. The sensing elements must accurately detect external stimuli to expand their applicability as sensors. However, the sensor's self-healing adhesion a target object have been major challenges developing such practical versatile devices. In this study, we prepared hydrogel (LM-SA-PAA) composed of liquid metal (LM), sodium alginate (SA), poly(acrylic acid) (PAA) with ultrastretchable, excellent self-healing, self-adhesive, high-sensitivity capabilities that enable conformal contact between sensor skin even during dynamic movements. performance stems from its double cross-linked networks, including physical chemical networks. cross-link formed by ionic interaction carboxyl groups PAA gallium ions provide reversible autonomous repair properties, whereas covalent bond provides stable strong network. Alginate forms microgel shell around LM nanoparticles via coordination Ga ions. addition offering exceptional colloidal stability, sufficient polar groups, ensuring adheres diverse substrates. Based on efficient electrical pathway provided LM, exhibited strain sensitivity enabled detection various human motions electrocardiographic monitoring. preparation method is simple can be used for low-cost fabrication sensors, which broad application prospects human-machine interface compatibility medical

Язык: Английский

Процитировано

63
Ultrastretchable High-Conductivity MXene-Based Organohydrogels for Human Health Monitoring and Machine-Learning-Assisted Recognition DOI
Qingqing Li, Xinrong Zhi, Yifan Xia

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2023, Номер 15(15), С. 19435 - 19446

Опубликована: Апрель 10, 2023

Conductive hydrogels as promising candidates of wearable electronics have attracted considerable interest in health monitoring, multifunctional electronic skins, and human-machine interfaces. However, to simultaneously achieve excellent electrical properties, superior stretchability, a low detection threshold conductive remains an extreme challenge. Herein, ultrastretchable high-conductivity MXene-based organohydrogel (M-OH) is developed for human monitoring machine-learning-assisted object recognition, which fabricated based on Ti3C2Tx MXene/lithium salt (LS)/poly(acrylamide) (PAM)/poly(vinyl alcohol) (PVA) hydrogel through facile immersion strategy glycerol/water binary solvent. The M-OH demonstrates remarkable stretchability (2000%) high conductivity (4.5 S/m) due the strong interaction between MXene dual-network PVA/PAM matrix incorporation LS, respectively. Meanwhile, sensor enables with sensitivity limit (12 Pa). Furthermore, pressure mapping image recognition technology, 8 × pixelated M-OH-based sensing array can accurately identify different objects accuracy 97.54% under assistance deep learning neural network (DNN). This work comprehensive performances high-conductive would further explore extensive potential application prospects personal healthcare, interfaces, artificial intelligence.

Язык: Английский

Процитировано

55