Self-recoverable and mechanical-reinforced hydrogel based on hydrophobic interaction with self-healable and conductive properties

Deng, Yuan Chao; Hussain, Imtiaz; Kang, Mengmeng; Li, Kewen; Yao, Fang; Liu, Shunli

doi:10.1016/j.cej.2018.07.187

Cited by 76 publications

(38 citation statements)

References 45 publications

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“…For example, Huang et al synthesized a graphene oxide/poly(vinyl alcohol) hydrogel that had a compression strength of 0.1 MPa when the water content was 95% . Deng et al fabricated a hydrophobic enhanced hydrogel with a compression strength of approximately 2.7 MPa, but it had a fairly low water content (60%) . In this work, the obtained hydrogels contain as much as 90 wt % water, but approximately 5 MPa of compression strength is reached.…”

Section: Resultsmentioning

confidence: 84%

Zr(IV)‐Crosslinked Polyacrylamide/Polyanionic Cellulose Composite Hydrogels with High Strength and Unique Acid Resistance

Dai

Wang

Teng

et al. 2019

J Polym Sci B Polym Phys

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Recently, metal coordination has been widely utilized to fabricate high-performance hydrogels, but conventional metalbased hydrogels face some drawbacks, such as staining or acid lability. In the present study, a novel kind of colorless Zr(IV)crosslinked polyacrylamide/polyanionic cellulose (PAM/PAC) composite hydrogel with unique acid resistance was constructed via acrylamide polymerization in a PAC solution, followed by posttreatment in a zirconium oxychloride (ZrOCl 2 ) solution. The prepared gels were characterized in terms of Fourier transform infrared spectroscopy, scanning electron microscopy, and tensile and compressive mechanics, as well as acid resistance. Inside the gels, the synergistic action of hydrogen bonding and Zr(IV) coordination is responsible for their improved mechanical properties and good energy dissipation ability. One hydrogel with nearly 90 wt % of water content can sustain approximately 5 MPa of compression stress at 90% strain without damage. Both microscopic network structures and macroscopic mechanics demonstrate facile adjustability via changing the PAC dosages in polymerization and/or ZrOCl 2 concentrations in posttreatment. Moreover, the gels present unexpected acid resistance due to the strong Zr(IV) coordination with PAC, demonstrating their potential application as hydrogel electrolytes in supercapacitors. The current work provides a new approach to fabricate metal coordination-based high strength, colorless hydrogels with acid resistance.

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Section: Resultsmentioning

confidence: 84%

Zr(IV)‐Crosslinked Polyacrylamide/Polyanionic Cellulose Composite Hydrogels with High Strength and Unique Acid Resistance

Dai

Wang

Teng

et al. 2019

J Polym Sci B Polym Phys

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“…It was possible that the long hydrophilic spacers which acts as the spacer hindered the reassociation of the hydrophobic spacers aer the deformation of the associating microregion, leading to the lower self-recovery efficiency. Compared with the hydrogels based on hydrophobic interactions and metalligand, 17 these hydrogels prepared by amphiphilic monomers AEO-n-AC had superior deformation resilience.…”

Section: Resultsmentioning

confidence: 99%

“…Incorporation of hydrogen bonds, oppositely charged interactions and hydrophobic interactions are the most common and effective strategies for preparing physically crosslinked hydrogels with excellent properties. [14][15][16] Inspired by the widespread presence of hydrophobic interactions in biological systems, 17 hydrophobic association hydrogels have been widely studied due to their facile prepared, excellent mechanical properties and self-healing ability. The hydrophobic interaction between the hydrophobic chains act as reversible crosslinking point, which could efficiently dissipate the crack energy.…”

Section: Introductionmentioning

confidence: 99%

Effects of amphiphilic monomers and their hydrophilic spacers on polyacrylamide hydrogels

Liu

et al. 2019

RSC Adv.

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“…Supramolecular crosslinking EH is also widely designed, prepared and applied (Ajayaghosh & George, ). The supramolecular interactions including hydrophobic interactions (Deng et al, ; Hao et al, ), electrostatic interactions (Bai, Sheng, Zhang, Li, & Shi, ; Pan et al, ; Y. Wang et al, ; Yu et al, ), π–π stacking (Bai et al, ; Du, Xu, Luo, Zhang, & Zhang, ; Han et al, ; Yao et al, ), host–guest complexation (Hao et al, ), hydrogen bonding (Bai et al, ; Han et al, ; H. Wu et al, ) and the combination of multiple interactions (F. Zhao et al, ). The supramolecular interactions enable the hydrogel system to be more flexible and adjustable, thus adding more functional applications of EHs.…”

Section: Preparation Of Electroconductive Hydrogelsmentioning

confidence: 99%

Electroconductive hydrogels for biomedical applications

Han

Zhang

2019

WIREs Nanomed Nanobiotechnol

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Electroconductive hydrogels (EHs), combining both the biomimetic features of hydrogels and the electrochemical properties of conductive polymers and carbon‐based materials, have received immense considerations over the past decade. The three‐dimensional porous structure, hydrophilic properties, and regulatable chemical and physical properties of EH resemble the extracellular matrix in tissues, enable EHs a good matrix for cell growth, proliferation, and migration. Different from nonconductive hydrogels, EHs possess high electrical conductivity and electrochemical redox properties, which can be utilized to detect electric signals generated in biological systems, and also to supply electrical stimulation to regulate the activity and function of cells and tissues. Hence, this article provides a summary of the new development of EH for biomedical applications in the decade. We give a brief introduction of the design and synthesis of EHs, as well as current applications of EHs in biomedical fields, including cell culture, tissue engineering, drug delivery and controlled release, biosensors, and implantable bioelectronics. The development trends and challenges of EHs for biomedical applications are also discussed. This article is categorized under: Implantable Materials and Surgical Technologies > Nanomaterials and Implants Diagnostic Tools > Biosensing Therapeutic Approaches and Drug Discovery > Emerging Technologies

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Self-recoverable and mechanical-reinforced hydrogel based on hydrophobic interaction with self-healable and conductive properties

Cited by 76 publications

References 45 publications

Zr(IV)‐Crosslinked Polyacrylamide/Polyanionic Cellulose Composite Hydrogels with High Strength and Unique Acid Resistance

Zr(IV)‐Crosslinked Polyacrylamide/Polyanionic Cellulose Composite Hydrogels with High Strength and Unique Acid Resistance

Effects of amphiphilic monomers and their hydrophilic spacers on polyacrylamide hydrogels

Electroconductive hydrogels for biomedical applications

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