Supramolecular polymer gels: from construction methods to functionality

Huang, Xiaohui; Li, Riqiang; Duan, Zhaozhao; Xu, Fenfen; Li, Hui

doi:10.1039/d2sm00352j

Cited by 18 publications

(16 citation statements)

References 77 publications

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“…[ 19 ] They possess greater structural stability and mechanical properties as compared to organogels produced by low‐molecular‐weight gelators. [ 20 ] But so far, the performance of CT complexes in the construction of polymeric hydrogels has yet to be explored.…”

Section: Introductionmentioning

confidence: 99%

Charge‐Transfer Polymeric Hydrogels with Self‐Healing, Injectable, Thermosensitive, Adhesive, and Antibacterial Properties for Diabetic Wound Healing

Zhang

Liu

Wei

et al. 2023

Adv Materials Technologies

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Charge transfer (CT) complexes are self‐assembled structures with a variety of attractive properties, but little is known about their performance in the construction of polymeric hydrogels. Herein, a series of hydrogels (CT‐hydrogels) with CT complex are designed and synthesized. The CT complex, consisting of pyranine derivative (sodium 8‐((4‐vinylbenzyl)oxy)pyrene‐1,3,6‐trisulfonate, VB‐HPTS) and viologen derivative (1‐methyl‐1′‐(4‐vinylbenzyl)‐[4,4′‐bipyridine]‐1,1′‐diium chloride iodide, VB‐MV), serves as the cross‐linker, and N‐(2‐hydroxyethyl)acrylamide is used as the backbone monomer. The CT complex allows CT‐hydrogels to have rapid self‐healing property, injectability, thermosensitivity, good adhesive strength on skin, and excellent antibacterial performance against both Gram‐negative and Gram‐positive bacteria. In addition, they have good biocompatibility and long‐term stability in both ambient and aqueous environments, showing potential application as wound dressing. Their performance in diabetic wound healing displays high wound healing rate, effectively inhibits inflammatory infiltration, and promotes neovascularization as compared with commercial wound dressings. The results of this study suggest that the multifunctional CT‐hydrogels are of great value in wound healing, and show a promising future to design hydrogels with CT complexes.

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Section: Introductionmentioning

confidence: 99%

Charge‐Transfer Polymeric Hydrogels with Self‐Healing, Injectable, Thermosensitive, Adhesive, and Antibacterial Properties for Diabetic Wound Healing

Zhang

Liu

Wei

et al. 2023

Adv Materials Technologies

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“…Supramolecular polymer networks are cross-linked through noncovalent interactions, allowing them to be broken and reformed DOI: 10.1002/macp.202300102 at a low energy cost. [1] This characteristic allows the materials to dissipate energy easily and enables self-healing, [2][3][4][5][6] which is beneficial for applications in injectables, regenerative medicine, and tissue engineering. [7][8][9][10][11] For supramolecular materials to be employed in these applications, as well as others, tunability is critical.…”

Section: Introductionmentioning

confidence: 99%

Moduli of Mussel‐Inspired, Metal‐Coordinated Hydrogels Comprising Four‐, Six‐, and Eight‐Arm Polymers

Darby

Stephens

Chwatko

et al. 2023

Macro Chemistry & Physics

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Metal‐coordinated hydrogels can form a percolated network with transient bonds due to metal ions‐functional group coordination. Each metal ion can link with more than one ligand, leading to an intricate speciation of bonding modes. While the mechanics of transient gels made with four‐arm polymers are often studied, less is known about how increasing the number of arms affects the modulus. Using shear rheology, we measure the modulus of hydrogels prepared from four‐, six‐, and eight‐armed poly(ethylene glycols), functionalized with histidine ligands that complex with nickel (II) ions. These gels have matched polymer wt% and varied pH to compare their moduli. We consider if the modulus can be described by established polymer network models by calculating the speciation of metal‐coordinated crosslinks, and then incorporating it into a phantom network prediction. We find that (1) increasing the number of polymer arms increases the modulus, (2) the phantom network allows reasonable modulus approximation for four‐arm and six‐arm gels, and (3) the modulus of eight‐arm gels exceed our phantom network prediction. Since polymer cores act as chemical crosslinks and metal‐coordinated crosslinks form network strands, it is possible that increasing the number of metal‐coordinated linkages per molecule reinforces the chemical crosslink at the polymer core.This article is protected by copyright. All rights reserved

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“…Electron-rich and easy-tosynthesize pillar [5]arene (P[5]A) was introduced to the polymer to adjust the hydrophilicity and improve the I 2 adsorption capacity. [37][38][39][40][41][42][43][44][45] Two monomers, ATTEG-P5A and ATTEG, and a flexible cross-linker, DATTEG, were synthesized for one-pot copolymerization in N,N-dimethylformamide (DMF) initiated by azoisobutyronitrile (AIBN) (Schemes S1, S2 and Fig. S1-S15 †).…”

Section: Introductionmentioning

confidence: 99%

Tetraethylene glycol-based polymer networks for the efficient removal of radioactive methyl iodide and iodine vapor

Zhang,

Li,

et al. 2023

Polym. Chem.

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Supramolecular polymer gels: from construction methods to functionality

Abstract: Supramolecular polymer gels (SPGs) are precisely designed gels brought together by noncovalent interactions to form three-dimensional network structures of polymers. In general, SPGs are different from supramolecular gels as they...

Cited by 18 publications

References 77 publications

Charge‐Transfer Polymeric Hydrogels with Self‐Healing, Injectable, Thermosensitive, Adhesive, and Antibacterial Properties for Diabetic Wound Healing

Charge‐Transfer Polymeric Hydrogels with Self‐Healing, Injectable, Thermosensitive, Adhesive, and Antibacterial Properties for Diabetic Wound Healing

Moduli of Mussel‐Inspired, Metal‐Coordinated Hydrogels Comprising Four‐, Six‐, and Eight‐Arm Polymers

Tetraethylene glycol-based polymer networks for the efficient removal of radioactive methyl iodide and iodine vapor

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