SCC/PVA Hydrogel with Self‐Healing Capability for Electrochromic Device DOI Open Access
Weixing Song, Zhenxiao Zhang,

Meng Hao

et al.

ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(40)

Published: Oct. 1, 2024

Abstract Cracking caused by aging or repeated bending can severely affect the lifetime of electrochromic devices. In this work, a self‐healing hydrogel was developed with poly (vinyl alcohol) (PVA)‐sodium carboxymethyl chitosan (SCC) semi‐inter transfer network as matrix, viologen bromide (HPV 2+ 2Br − ) substance, and borax cross‐linking agent. The properties stem from dynamic reversible borate bonds between PVA molecular chains. As voltage changes, color device transitions colorless to light purple then dark purple. optical contrast at 600 nm reaches approximately 51 %. At room temperature, disconnected fully restore its original state after 30 minutes contact, effectively addressing issues related cracks damage in flexible This research holds significant implications for enhancing reliability stability

Language: Английский

Enhanced mechanical strength and stretchable ionic conductive hydrogel with double-network structure for wearable strain sensing and energy harvesting DOI
Kangkang Ou, Mengting Wang, Meng Chen

et al.

Composites Science and Technology, Journal Year: 2024, Volume and Issue: 255, P. 110732 - 110732

Published: July 2, 2024

Language: Английский

Citations

37
Electrospun Green Fluorescent-Highly Anisotropic Conductive Janus-Type Nanoribbon Hydrogel Array Film for Multiple Stimulus Response Sensors DOI
Haina Qi,

Xuelian Jing,

Yaolin Hu

et al.

Composites Part B Engineering, Journal Year: 2024, Volume and Issue: 288, P. 111933 - 111933

Published: Nov. 2, 2024

Language: Английский

Citations

25
Highly robust, self-adhesive, self-healing, pH-responsive, cytocompatible and degradable collagen/PVA/tannin-based conductive hydrogel sensor for motion-monitoring DOI
Xin Shi,

Maohua Lan,

Jiachang Liu

et al.

Polymer, Journal Year: 2024, Volume and Issue: 308, P. 127365 - 127365

Published: July 6, 2024

Language: Английский

Citations

20
Transparent, Highly Stretchable, Self‐Healing, Adhesive, Freezing‐Tolerant, and Swelling‐Resistant Multifunctional Hydrogels for Underwater Motion Detection and Information Transmission DOI Creative Commons
Zeyu Zhang, Aifang Yao, Patrizio Raffa

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: July 31, 2024

Abstract Conductive hydrogels have emerged as fascinating materials for flexible electronics because of their integrated conductivity, mechanical flexibility, and the possibility to introduce several smart functions. However, swelling in aqueous environments significantly reduces applicability where contact with water is unavoidable. In this study, a physically cross‐linked composite hydrogel proposed, that transparent, highly stretchable, anti‐swelling, capable autonomous self‐healing, adhesive, anti‐freezing. The synthesized through simple one‐step photopolymerization novel deep eutectic solvent (DES)/water system. Dynamic physical interactions, including hydrophobic interaction, hydrogen bonding, electrostatic confer remarkable transparency (92%), self‐healing capability (up 94%), good adhesion wide array substrates (91 199 kPa), high toughness (1.46 MJ m −3 ), excellent elongation at break 2064%), resistance (equilibrium ratio 3% 30 days) even solutions different pH (pH 1–11), other solvents. incorporation DES contributes exceptional anti‐freezing performance. transparent sensor achieves multifunctional sensing human motion detection sensitivity stability. Notably, demonstrates information transmission underwater stretching pressing, showcasing its immense potential devices.

Language: Английский

Citations

20
Bimetallic-MOF Tunable Conductive Hydrogels to Unleash High Stretchability and Sensitivity for Highly Responsive Flexible Sensors and Artificial Skin Applications DOI
Mansoor Khan, Luqman Ali Shah,

Hifsa Hifsa

et al.

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(12), P. 7288 - 7300

Published: June 6, 2024

Metal–organic frameworks (MOFs) are widely applied in various fields, including energy storage, drug delivery, wastewater treatment, and much more. However, their use hydrogels is limited due to low dispersion which causes agglomeration the hydrogel network many properties of sacrifices. Similarly, conductive have emerged as a promising material for skin-like sensors excellent biocompatibility mechanical flexibility. like MOFs, also face challenges such stretchability, toughness, susceptibility fatigue, resulting sensing range large response time-reduced durability sensors. In this study, highly stretchable, tough, antifatigue composite poly(dodecyl methacrylate-acrylamide-2-(acryloyloxy)ethyl trimethylammonium chloride) bimetallic metal–organic framework [p(DA-AM-AETAC)BM-MOF] was developed by integrating BM-MOFs into it. To achieve uniform within network, positively charged surfactant, ethyl hexadecyl dimethylammonium bromide, used. It facilitates formation hydrophobic interactions between matrix surface BM-MOFs. Furthermore, it can interact with surfactant polymer chains through physical interactions, significantly enhancing hydrogel. The BM-MOF-based exhibited impressive stretchability (1588%) toughness (537 kJ m–3), along exceptional properties. Moreover, demonstrated high conductivity 1.3 S/m tensile strain sensitivity ranging from 0.5 700% gauge factor 14.8 at response–recovery 195–145 ms. p(DA-AM-AETAC)BM-MOF displayed sensitive, reliable, repetitive detection wide human activities, wrist elbow rotation, finger bending, swallowing motion, speaking, well handwriting drawing. monitor pressure mimic skin. This highlights potential wearable strain, pressure, artificial skin flexible devices.

Language: Английский

Citations

16
Pnipaam-based temperature responsive ionic conductive hydrogels for flexible strain and temperature sensing DOI

Tongda Lei,

Yongheng Wang, Yaya Feng

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 678, P. 726 - 741

Published: Sept. 17, 2024

Language: Английский

Citations

15
Ultra-Stretchable, Adhesive, Conductive, and Antifreezing Multinetwork Borate Ester-Based Hydrogel for Wearable Strain Sensor and VOC Absorption DOI

Ruixue Wang,

Chunjiao Liu, Zaixing Li

et al.

ACS Sensors, Journal Year: 2024, Volume and Issue: 9(10), P. 5322 - 5332

Published: Oct. 15, 2024

Hydrogels based on borate ester bonds exhibit remarkable tensile strength and self-healing ability, which make them a promising material for various biological research strain sensor applications. However, in order to meet the practical application of hydrogel sensors, they must also show high conductivity, frost resistance, proper adhesion, is still continuous challenge. Herein, triple network was prepared using poly(vinyl alcohol) (PVA) as first network, ethylene imine polymer (PEI) second poly(acrylamide-

Language: Английский

Citations

13
Multi-role conductive hydrogels for flexible transducers regulated by MOFs for monitoring human activities and electronic skin functions DOI
Mansoor Khan, Tanzil Ur Rahman, Luqman Ali Shah

et al.

Journal of Materials Chemistry B, Journal Year: 2024, Volume and Issue: 12(25), P. 6190 - 6202

Published: Jan. 1, 2024

Metal organic frameworks (MOFs) have garnered significant attention in the development of stretchable and wearable conductive hydrogels for flexible transducers. However, MOFs used hydrogel networks been hampered by low mechanical performance poor dispersibility aqueous solutions, which affect hydrogels, including toughness, limited self-recovery, short working ranges, conductivity, prolonged response-recovery times. To address these shortcomings, a novel approach was adopted micelle co-polymerization

Language: Английский

Citations

11
Stretchable, adhesive, conductive hydrogel initiated by liquid metal complex for multi-functional sensing DOI

Yuecong Luo,

Qiannian Yang,

Minzhang Chen

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 153674 - 153674

Published: July 3, 2024

Language: Английский

Citations

10
Multifunctional Capabilities of Malonic Acid-Bridged Conductive Hydrogels for Wearable Electronic Devices DOI

Hifsa Hifsa,

Mansoor Khan,

Latafat Ara

et al.

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(16), P. 9940 - 9951

Published: Aug. 12, 2024

Flexible and strain-sensing smart materials have received significant attention from researchers due to their potential use in human motion detection, soft robotics, epidermis sensors, energy storage devices, etc. However, low mechanical strength, range sensitivity, high time response, antifatigue resistance hampered the application of previously fabricated materials. Herein, a malonic acid (MA)-reinforced hydrogel was prepared through one-pot-free radical polymerization, which MA makes bridge by connecting hydrophobically associated polyacrylamide (PAmm) polydodecyl methacrylate (PDDMA) physical cross-linking. Ethyl-hexadecyl dimethylammonium bromide (EHDDAB), cationic surfactant, is used ensure formation micelles. The micelles polymer chains are bridged via interactions electrostatic charge enhanced dicarboxylic groups present on molecules. Notable strength observed for MA4 with 2102% strain, 2.36 MPa stress, excellent cyclic stability. At 500% suggests sensitivity tensile as indicated its gauge factor 6.9 fast response recovery time. Meanwhile, ionic conductivity after addition LiCl calculated 0.20 S/m. Furthermore, practical applications were detection different motions like finger bending, wrist movement, elbow knee movements. Similarly, small physiological larynx vibration detected speaking, coughing, drinking water. an electronic pen showed responses multiple languages both speaking writing. MA-regulated hydrogels show possibility flexible many applications, including touch screens, biomedical monitoring, robotic devices.

Language: Английский

Citations

10