GelMA/κ-carrageenan double-network hydrogels with superior mechanics and biocompatibility

Gan, Xueqi; Li, Chen; Sun, Jiyu; Zhang, Xidan; Zhou, Min; Deng, Yi; Xiao, Anqi

doi:10.1039/d2ra06101e

Cited by 15 publications

(6 citation statements)

References 34 publications

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“…The peaks at 1240, 930, and 850 cm −1 in the KC hydrogel correspond to the total sulfate groups, 3,6-anhydro-D-galactose, and D-galactose-4-sulfate, respectively. 36 The O−H stretching peaks in the PVA/KC/ KOH (2 M) composite gels shifted from 3369 and 3319 cm −1 in the KC and PVA hydrogels, respectively, to 3332 cm −1 . This shift indicates the formation of intermolecular hydrogen bonds between PVA and KC, confirming the formation of a DN network.…”

Section: ■ Results and Discussionmentioning

confidence: 95%

“…The characteristic peaks of the PVA hydrogel at 3319, 2905, and 1050 cm –1 correspond to the O–H stretching, C–H bending, and C–O–C stretching vibrations, respectively. The peaks at 1240, 930, and 850 cm –1 in the KC hydrogel correspond to the total sulfate groups, 3,6-anhydro- d -galactose, and d -galactose-4-sulfate, respectively . The O–H stretching peaks in the PVA/KC/KOH (2 M) composite gels shifted from 3369 and 3319 cm –1 in the KC and PVA hydrogels, respectively, to 3332 cm –1 .…”

Section: Resultsmentioning

confidence: 96%

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Flexible Aluminum-Air Battery Based on High-Performance Three-Dimensional Dual-Network PVA/KC/KOH Composite Gel Polymer Electrolyte

Zou,

Chen,

Liu

et al. 2024

Langmuir

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With a large theoretical capacity and high energy density, aluminum-air batteries are a promising energy storage device. However, the rigid structure and liquid electrolyte of a traditional aluminum-air battery limit its application potential in the field of flexible electronics, and the irreversible corrosion of its anode greatly reduces the battery life. To solve the above problems, a PVA/KC/KOH (2 M) composite gel polymer electrolyte (GPE) with a three-dimensional dual-network structure consisting of polyvinyl alcohol (PVA), kappa-carrageenan (KC), and potassium hydroxide was prepared in this paper by a simple two-step method and applied in aluminum-air batteries. At room temperature, the ionic conductivity of the PVA/KC/KOH (2 M) composite GPE was found to be up to 6.50 × 10 −3 S cm −1 . By utilizing this composite GPE, a single flexible aluminum-air battery was assembled and achieved a maximum discharge voltage of 1.2 V at 5 mA cm −2 , with discharge time exceeding 3 h. Moreover, the single flexible aluminum-air battery maintains good electrochemical performance under various deformation modes, and the output voltage of the battery remains at about 99% after 300 cycles. The construction of flexible aluminum-air batteries based on a threedimensional dual-network PVA/KC/KOH composite GPE provides excellent safety and high-multiplication capabilities for aluminum-air batteries, making them potential candidates for various flexible device applications.

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Section: ■ Results and Discussionmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 96%

Flexible Aluminum-Air Battery Based on High-Performance Three-Dimensional Dual-Network PVA/KC/KOH Composite Gel Polymer Electrolyte

Zou,

Chen,

Liu

et al. 2024

Langmuir

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“…No new adsorption peak appeared in the FTIR spectra of SF/CG blended structures besides the characteristic peaks corresponding to CG100 and SF, demonstrating no new chemical crosslinking formed between SF and CF ( Fig. S2 ) [ 78 ]. The dual-crosslinking effect is maximized when the CG concentration is below 2% (w/v) in the ink.…”

Section: Resultsmentioning

confidence: 99%

Photo-/thermo-responsive bioink for improved printability in extrusion-based bioprinting

Moon,

Park,

Cha

et al. 2024

Materials Today Bio

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“…Hence, we performed SEM analysis to examine the microstructure of the lyophilized GelMA, LZIF-8@GEL, WMg-MOF@GEL, and LZIF-8/WMg-MOF@GEL hydrogels (Figure C–F). The GelMA hydrogel exhibits large and nonuniform pores, which facilitate drug loading and cell adhesion (Figure S6, Supporting Information). , Drug release experiments simulate the release process of drugs in the body to study the kinetics and mechanisms of drug release. In Figure G, we observed an initial stage characterized by the rapid release of Zn, followed by a sustained and gradual release process.…”

Section: Resultsmentioning

confidence: 99%

Dual-Targeted Metal Ion Network Hydrogel Scaffold for Promoting the Integrated Repair of Tendon–Bone Interfaces

Ma,

Yu,

Zhang

et al. 2024

ACS Appl. Mater. Interfaces

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The tendon−bone interface has a complex gradient structure vital for stress transmission and pressure buffering during movement. However, injury to the gradient tissue, especially the tendon and cartilage components, often hinders the complete restoration of the original structure. Here, a metal ion network hydrogel scaffold, with the capability of targeting multitissue, was constructed through the photopolymerization of the LHERHLNNN peptide-modified zeolitic imidazolate framework-8 (LZIF-8) and the WYRGRL peptide-modified magnesium metal− organic framework (WMg-MOF) within the hydrogel scaffold, which could facilitate the directional migration of metal ions to form a dynamic gradient, thereby achieving integrated regeneration of gradient tissues. LZIF-8 selectively migrated to the tendon, releasing zinc ions to enhance collagen secretion and promoting tendon repair. Simultaneously, WMg-MOF migrated to cartilage, releasing magnesium ions to induce cell differentiation and facilitating cartilage regeneration. Infrared spectroscopy confirmed successful peptide modification of nano ZIF-8 and Mg-MOF. Fluorescence imaging validated that LZIF-8/WMg-MOF had a longer retention, indirectly confirming their successful targeting of the tendon−bone interface. In summary, this dual-targeted metal ion network hydrogel scaffold has the potential to facilitate synchronized multitissue regeneration at the compromised tendon−bone interface, offering favorable prospects for its application in the integrated reconstruction characterized by the gradient structure.

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GelMA/κ-carrageenan double-network hydrogels with superior mechanics and biocompatibility

Abstract: A new GelMA/κ-carrageenan (GelMA/KC) double network (DN) hydrogel with excellent physical properties and biocompatibility is developed through a double cross-linking strategy.

Cited by 15 publications

References 34 publications

Flexible Aluminum-Air Battery Based on High-Performance Three-Dimensional Dual-Network PVA/KC/KOH Composite Gel Polymer Electrolyte

Flexible Aluminum-Air Battery Based on High-Performance Three-Dimensional Dual-Network PVA/KC/KOH Composite Gel Polymer Electrolyte

Photo-/thermo-responsive bioink for improved printability in extrusion-based bioprinting

Dual-Targeted Metal Ion Network Hydrogel Scaffold for Promoting the Integrated Repair of Tendon–Bone Interfaces

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