Effects of polyethylene glycol content on the properties of a silk fibroin/nano-hydroxyapatite/polyethylene glycol electrospun scaffold

Qi, Qi; Yao, Yao; Jia, Xiaoshi; Ye, Meng; Zhao, Ke; Jian, Yutao

doi:10.1039/c9ra06654c

Cited by 10 publications

(3 citation statements)

References 38 publications

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“…Additionally, the intensity of O─H bond decreases with the increase of PEG content, which indicates that PEG polymerization is probably a bonding between hydrogen atoms and oxygen atoms in a single PEG molecular chain. [33][34][35][36] Thus, the strong attraction of PEG to hydrogen bonds will break the hydrogen bonds of the original solvent. [37] Compared to DI water in the Raman spectra (Figure 1e), the peak position shows obvious peak strength at ≈900 cm −1 , which should be caused by the adding of perchlorate.…”

Section: Resultsmentioning

confidence: 99%

Tailoring Interface to Boost the High‐Performance Aqueous Al Ion Batteries

Tao

Gao

et al. 2023

Adv Funct Materials

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Electrolytes are highly important for aqueous Al ion batteries (AAIBs). However, Al metal anode usually has poor reversibility of plating/tripping, resulting in low Coulombic efficiency (CE) and poor cycling stability by using traditional Al ion electrolyte. Herein, a novel type of aqueous Al ion electrolyte with polyethylene glycol (PEG) as the primary skeleton for solvated Al ions is proposed, named as PEG‐Al@H. Outstandingly, an Al electrolyte interface (AEI) is generated on the Al metal surface during galvanostatic charging process by polymerization of PEG. It is proved that AEI, acting as the protective layer, effectively mitigates the side reaction caused by the rapid kinetic in aqueous electrolyte and prevents Al metal anode from deeply corroding. Moreover, PEG disrupts the hydrogen bond of the solvent in the electrolyte, extending the working temperature of AAIBs. The design that a full‐cell consisting of PEG‐Al@H as the electrolyte, potassium manganese hexacyanoferrate as the cathode, Al metal as anode can run over 20 000 cycles at 500 mA g−1, with an average CE higher than 95%. More importantly, even at −5 °C, for the first time, an initial capacity of 16 mAh in a pouch‐cell is achieved and maintain roughly 87% of capacity after 5500 cycles.

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Section: Resultsmentioning

confidence: 99%

Tailoring Interface to Boost the High‐Performance Aqueous Al Ion Batteries

Tao

Gao

et al. 2023

Adv Funct Materials

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“…48 Furthermore, studies have shown the ability of polyethylene glycol to stabilize and enhance the solubility of beta sheet forming peptides. 51,52 Here, in order to enhance the injectability of the peptidebased hydrogel and its hydrophilicity and elasticity, ethylene glycol was covalently conjugated to the Fmoc-FF peptide. Two different Fmoc-FF EG-conjugated peptides were designed, namely Fmoc-FF-(EG) 2 -COOH and Fmoc-FF-(EG) 6 -COOH, and were co-assembled with the Fmoc-FF peptide.…”

Section: Introductionmentioning

confidence: 99%

Stabilizing gelatin-based bioinks under physiological conditions by incorporation of ethylene-glycol-conjugated Fmoc-FF peptides

et al. 2022

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“…[10][11][12] Among them, nano-titanium dioxide (TiO 2 ) and graphene oxide (GO) have been widely researched and applied in terms of their advantages of easy availability of raw materials and unique properties. 13 At present, researchers usually blend nano materials with silk fibroin solution for regenerated spinning or film-forming, 14,15 or use nano materials to carry out surface grafting modification of silk fabrics to improve the mechanical, antiUV and antibacterial properties of silk products. 16,17 Pan et al 18 mixed nano-TiO 2 into the regenerated fibroin solution and obtained the regenerated silk with better toughness by dry spinning.…”

Section: Introductionmentioning

confidence: 99%

Natural flat cocoon materials constructed by eri silkworm with high strength and excellent anti-ultraviolet performance

Zhou

Wang

Zhou³

et al. 2020

Journal of Engineered Fibers and Fabrics

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Eri silkworm is easy to be raised and has high cocoon yield, the cocoon fails to be continuously reeled due to a loose structure, a large part of cocoon coat and an eclosion hole. In this work, a fifth instar larvae of eri silkworm was provided with only a flat cocooning place to spin to produce a flat cocoon, it was fed with the castor leaves sprayed with nano-TiO2 and graphene oxide (GO), Compared with the flat cocoon obtained without nanomaterials, the silk was not found to change in morphology and structure significantly. Nanomaterials promoted the transformation of the random coil/α-helix conformation of the silk to the β-sheet conformation to a certain extent, which formed a stable crystallization. Thus its strength value could increase by 15%–17%, the ultraviolet protection factor ( UPF) value of the flat cocoon with nanomaterials increased significantly, and the silk obtained made up for the lack of the strength in natural eri silkworm silk and poor resistance to sunlight. The flat cocoon features a stable structure, good formation, uniform thickness, and manual control. It can be directly used as raw material for processing flat textile products, which provides a feasible idea for the high-value utilization of the eri silkworm cocoon.

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Effects of polyethylene glycol content on the properties of a silk fibroin/nano-hydroxyapatite/polyethylene glycol electrospun scaffold

Abstract: The modification of the mechanical and degradation properties of a SF scaffold combined with PEG and nHAP is demonstrated.

Cited by 10 publications

References 38 publications

Tailoring Interface to Boost the High‐Performance Aqueous Al Ion Batteries

Tailoring Interface to Boost the High‐Performance Aqueous Al Ion Batteries

Stabilizing gelatin-based bioinks under physiological conditions by incorporation of ethylene-glycol-conjugated Fmoc-FF peptides

Natural flat cocoon materials constructed by eri silkworm with high strength and excellent anti-ultraviolet performance

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