Fabrication of a High-Strength, Tough, Swelling-Resistant, Conductive Hydrogel via Ion Cross-Linking, Directional Freeze-Drying, and Rehydration

Luo, Jinni; Wang, Huanxia; Wang, Jinfei; Yuan, Changrong; Li, Chenglong; Zhong, Kangping; Xiang, Jie; Jia, Pengxiang

doi:10.1021/acsbiomaterials.2c01520

Cited by 17 publications

(7 citation statements)

References 59 publications

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“…TA@Fe 3+ -Cel-PA x M y hydrogels were immobilized on different parts of the human body (e.g., hand and wrist joints). And the change of relative resistance Δ R / R 0 (%) in real time, and the gauge factor (GF) was recorded using the equations reported in our previous research …”

Section: Methodsmentioning

confidence: 99%

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High Strength, Swelling Resistance, Antimicrobial and Conductive Zwitterionic Hydrogel Based on Cellulose Frame

Wang,

Luo,

Jia

et al. 2024

ACS Appl. Polym. Mater.

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A high strength, swelling resistance, and conductive hydrogel with excellent photothermal effect and antimicrobial property is prepared based on a cellulose frame. First, cellulose is dissolved in a NaOH/urea aqueous solution. The cellulose solution is self-assembled in an ethanol environment to form a cellulose frame. The frame is then immersed in the acrylamide (AM) and 2methylacryloxyethyl phosphocholine (MPC) solution. A Cel-PA x M y cellulose hydrogel is prepared by in situ copolymerization of AM and MPC. Lastly, Cel-PA x M y hydrogel is soaked in a tannic acid/ferric chloride (TA@Fe 3+ ) solution to prepare the TA@Fe 3+ -Cel-PA x M y hydrogel. The obtained hydrogel shows excellent mechanical strength (toughness 600 KJ/m 3 , Young's modulus 225 KJ/m 3 ) due to the presence of a rigid cellulose frame. The introduction of TA@Fe 3+ not only increases the cross-linking density of hydrogels, making hydrogels have extraordinary swelling resistance (swelling ratio 50 ± 20%), but also endows the hydrogels with excellent electrical conductivity (conductivity 1.0 S/m, GF 0.75, response time 572.27 ms), good near-infrared photothermal effect, and outstanding antimicrobial property. This work proposes an effective strategy for the development of high strength, swelling resistance, antimicrobial and conductive zwitterionic hydrogel, which exhibits significant promise for wearable sensors and electronic devices.

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Section: Methodsmentioning

confidence: 99%

“…And the change of relative resistance ΔR/R 0 (%) in real time, and the gauge factor (GF) was recorded using the equations reported in our previous research. 27 2.8. Cytotoxicity Experiment.…”

Section: Preparation Of Hydrogelsmentioning

confidence: 99%

High Strength, Swelling Resistance, Antimicrobial and Conductive Zwitterionic Hydrogel Based on Cellulose Frame

Wang,

Luo,

Jia

et al. 2024

ACS Appl. Polym. Mater.

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“…They can also be synthesized as super-flexible materials [ 148 ]. In recent years, it has been applied in the development of wearable electronics for motion detection and biomedical monitoring due to its flexible and conductive structures [ 149 , 150 ]. Another advantage of hydrogels is that they can be easily functionalized with functional molecules and can respond to stimuli.…”

Section: Materials Used For Optical Sensing Platformsmentioning

confidence: 99%

Recent Advances in Optical Sensing for the Detection of Microbial Contaminants

Idil,

Aslıyüce,

Perçin

et al. 2023

Micromachines

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Microbial contaminants are responsible for several infectious diseases, and they have been introduced as important potential food- and water-borne risk factors. They become a global burden due to their health and safety threats. In addition, their tendency to undergo mutations that result in antimicrobial resistance makes them difficult to treat. In this respect, rapid and reliable detection of microbial contaminants carries great significance, and this research area is explored as a rich subject within a dynamic state. Optical sensing serving as analytical devices enables simple usage, low-cost, rapid, and sensitive detection with the advantage of their miniaturization. From the point of view of microbial contaminants, on-site detection plays a crucial role, and portable, easy-applicable, and effective point-of-care (POC) devices offer high specificity and sensitivity. They serve as advanced on-site detection tools and are pioneers in next-generation sensing platforms. In this review, recent trends and advances in optical sensing to detect microbial contaminants were mainly discussed. The most innovative and popular optical sensing approaches were highlighted, and different optical sensing methodologies were explained by emphasizing their advantages and limitations. Consequently, the challenges and future perspectives were considered.

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“…It is economical and has outstanding biomimetic properties such as gel-forming ability, high fluid absorption and retention, biocompatibility, biodegradability, and drug delivery ability. The gelation of carrageenan is often accompanied by the reversible formation of helical conformations of metal ions, which can bridge sulfuric acid groups between molecules via ionic interactions. − Moreover, the transition of its spiral chain to a double helix can be regulated by the temperature, making carrageenan ideal for constructing reversible networks. Many hydrogels have been synthesized using ionic interactions between metal ions and carrageenan; however, their mechanical properties are still inadequate.…”

Section: Introductionmentioning

confidence: 99%

An Antifreeze, Self-Healing Dual-Network Organogel for Supercapacitor and Anticounterfeiting Equipment

Zhang,

Tang,

Zhang

et al. 2024

ACS Appl. Energy Mater.

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The function of polymer hydrogel electrolytes has been limited by external force, fracture formation, and cryogenic freezing. The dual-network 1 (1-pyrenemethanol)-poly(vinyl alcohol) (PVA) /K + -Kappa carrageenan (KC) organogel electrolytes with self-healing, antifreezing, fluorescent acid−base and ion response were prepared using the one-pot method. The tensile strength, fracture rate, capacitance, and energy density of the organogel were 627 kPa, 668%, 190 F g −1 , and 9.63 Wh kg −1 , respectively. As supercapacitors have high toughness and flexibility, they can maintain stable energy output under various deformations such as compression, bending and perforating. Based on the thermal reversibility of KC and the synergistic effect of the hydrogen bond between KC and PVA, the organogels exhibit remarkable self-healing properties such as a capacitance retention of 85.3% after 5 cut/healing cycles. Furthermore, the organogels have excellent antifreeze properties, with a capacitance retention of 72.5% at −65 °C for 20 days. Organogels can be used for information writing and anticounterfeiting via H + /OH − fluorescence response and metal ion (Co 3+ and Fe 3+ ) response. Such safe organogel capacitors have broad application prospects in portable and wearable electronic products.

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Fabrication of a High-Strength, Tough, Swelling-Resistant, Conductive Hydrogel via Ion Cross-Linking, Directional Freeze-Drying, and Rehydration

Cited by 17 publications

References 59 publications

High Strength, Swelling Resistance, Antimicrobial and Conductive Zwitterionic Hydrogel Based on Cellulose Frame

High Strength, Swelling Resistance, Antimicrobial and Conductive Zwitterionic Hydrogel Based on Cellulose Frame

Recent Advances in Optical Sensing for the Detection of Microbial Contaminants

An Antifreeze, Self-Healing Dual-Network Organogel for Supercapacitor and Anticounterfeiting Equipment

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