High-strength and high-toughness sodium alginate/polyacrylamide double physically crosslinked network hydrogel with superior self-healing and self-recovery properties prepared by a one-pot method

Zheng, Qianqian; Zhao, Liyan; Wang, Jing; Wang, Shuo; Liu, Yuxing; Liu, Xiaofei

doi:10.1016/j.colsurfa.2019.124402

Cited by 75 publications

(49 citation statements)

References 58 publications

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“…It is mainly due to the break of the main chain of alg. [ 33,34 ] The pyrolysis of PAM gel below 330 °C originates from the loss of residual water in the gel. And a clearly pyrolysis stage could be seen when the temperature range is from 330 to 450 °C.…”

Section: Resultsmentioning

confidence: 99%

Polyacrylamide/Copper‐Alginate Double Network Hydrogel Electrolyte with Excellent Mechanical Properties and Strain‐Sensitivity

Zhang

Lin²,

et al. 2021

Macromolecular Bioscience

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The double network (DN) hydrogel has attracted great attention due to its wide applications in daily life. However, synthesis DN hydrogel with excellent mechanical properties is still a big challenge. Here, polyacrylamide/copper‐alginate double network (PAM/Cu‐alg DN) hydrogel electrolyte is successfully synthesized by radiation‐induced polymerization and cross‐linking process of acrylamide with N, N’‐methylene‐bis‐acrylamide and subsequent cupric ion (Cu2+) crosslinking of alginate. The content of sodium alginate, absorbed dose, and the concentration of Cu2+ are investigated in detail for improving the overall properties of PAM/Cu‐alg DN hydrogel electrolyte. The PAM/Cu‐alg DN hydrogel electrolyte synthesizes by radiation technique and Cu2+ crosslinking shows superior mechanical properties with a tensile strength of 2.25 ± 0.02 MPa, excellent energy dissipation mechanism, and the high ionic conductivity of 4.08 ± 0.17 mS cm−1. PAM/Cu‐alg DN hydrogel is characterized with attenuated total reflection Fourier transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy, and X‐ray photoelectron spectroscopy analyses and the reason for the improvement of mechanical properties is illustrated. Furthermore, PAM/Cu‐alg DN hydrogel electrolyte exhibits excellent strain‐sensitivity, cyclic stability, and durability. This work paves for the new way for the preparation of DN hydrogel electrolytes with excellent properties.

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Section: Resultsmentioning

confidence: 99%

Polyacrylamide/Copper‐Alginate Double Network Hydrogel Electrolyte with Excellent Mechanical Properties and Strain‐Sensitivity

Zhang

Lin²,

et al. 2021

Macromolecular Bioscience

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“…Acrylamide (AM) and its derivatives have excellent biocompatibility, non-carcinogenicity, non-toxicity, easy processing, mechanical adjustment, accurate and controllable elastic properties, and good swelling ability [ 129 ]. The SA/PAM-Fe DN hydrogels prepared on the basis of hydrophobic interaction and ionic cross-linking had excellent self-healing properties, puncture resistance, fatigue resistance, pH sensitivity, good thermal stability, and self-healing properties [ 130 ]. Based on the good mechanical properties of PAM-based hydrogels, the application of PAM-based hydrogels in wound dressings can be promoted by adding antibacterial, antifungal, growth factors, and other macromolecules.…”

Section: Biomaterials For Preparing Hydrogelsmentioning

confidence: 99%

Hydrogel Preparation Methods and Biomaterials for Wound Dressing

Liang

et al. 2021

Life

129

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Wounds have become one of the causes of death worldwide. The metabolic disorder of the wound microenvironment can lead to a series of serious symptoms, especially chronic wounds that bring great pain to patients, and there is currently no effective and widely used wound dressing. Therefore, it is important to develop new multifunctional wound dressings. Hydrogel is an ideal dressing candidate because of its 3D structure, good permeability, excellent biocompatibility, and ability to provide a moist environment for wound repair, which overcomes the shortcomings of traditional dressings. This article first briefly introduces the skin wound healing process, then the preparation methods of hydrogel dressings and the characteristics of hydrogel wound dressings made of natural biomaterials and synthetic materials are introduced. Finally, the development prospects and challenges of hydrogel wound dressings are discussed.

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“…Hydrogels prepared by one-pot method using Alg-Na PAAm presented dual physically crosslinked network formed by ionic coordination and hydrophobic association, respectively [223]. These hydrogels have shown superior mechanical properties (high values of strength, toughness, and fracture stress), self-healing ability, pH sensitivity and good thermal stability, with potential applications for biomedical applications (wearable devices, sensors, drug delivery, etc.).…”

Section: Alginatementioning

confidence: 99%

Bioinspired Hydrogels as Platforms for Life-Science Applications: Challenges and Opportunities

Bercea¹

2022

Polymers

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Hydrogels, as interconnected networks (polymer mesh; physically, chemically, or dynamic crosslinked networks) incorporating a high amount of water, present structural characteristics similar to soft natural tissue. They enable the diffusion of different molecules (ions, drugs, and grow factors) and have the ability to take over the action of external factors. Their nature provides a wide variety of raw materials and inspiration for functional soft matter obtained by complex mechanisms and hierarchical self-assembly. Over the last decade, many studies focused on developing innovative and high-performance materials, with new or improved functions, by mimicking biological structures at different length scales. Hydrogels with natural or synthetic origin can be engineered as bulk materials, micro- or nanoparticles, patches, membranes, supramolecular pathways, bio-inks, etc. The specific features of hydrogels make them suitable for a wide variety of applications, including tissue engineering scaffolds (repair/regeneration), wound healing, drug delivery carriers, bio-inks, soft robotics, sensors, actuators, catalysis, food safety, and hygiene products. This review is focused on recent advances in the field of bioinspired hydrogels that can serve as platforms for life-science applications. A brief outlook on the actual trends and future directions is also presented.

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High-strength and high-toughness sodium alginate/polyacrylamide double physically crosslinked network hydrogel with superior self-healing and self-recovery properties prepared by a one-pot method

Cited by 75 publications

References 58 publications

Polyacrylamide/Copper‐Alginate Double Network Hydrogel Electrolyte with Excellent Mechanical Properties and Strain‐Sensitivity

Polyacrylamide/Copper‐Alginate Double Network Hydrogel Electrolyte with Excellent Mechanical Properties and Strain‐Sensitivity

Hydrogel Preparation Methods and Biomaterials for Wound Dressing

Bioinspired Hydrogels as Platforms for Life-Science Applications: Challenges and Opportunities

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