An acid-catalyzed polyol <i>in situ</i> crosslinked alginate ester/Antarctic krill protein composite fiber with improved strength and water resistance

Xu, Yi; Guo, Jing; Guan, Fang; Yang, Qiang; Yin, Juhui; Ji, Xinbin

doi:10.1039/d2nj03189b

Cited by 4 publications

(5 citation statements)

References 30 publications

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“…In addition, all composite films exhibited new peaks at 2 θ = 34.4° ( d -spacing = 0.26 nm) and 39.8° ( d -spacing = 0.23 nm), which were achieved by thermal shearing and solvent post-treatment, indicating that electrostatic interactions and hydrogen bonding between CS and SP might contribute to the crystalline structure . It was reported that the greater the force between chitosan, the more it could affect the crystallization ability of molecular chains. , The resultant higher degree of crystallinity might be beneficial to the tensile strength of the composite films (Table S1).…”

Section: Resultsmentioning

confidence: 95%

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Structure and Properties of Thermomechanically Processed Chitosan-Based Biomimetic Composite Materials: Effect of Chitosan Molecular Weight

Zhang

Gao

Wang

et al. 2023

ACS Sustainable Chem. Eng.

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While natural biopolymers are promising sustainable resources to develop "green" materials, their unique properties make it challenging to process them as synthetic polymers, limiting their applications. This is mainly due to the intramolecular and intermolecular hydrogen bonds formed by the large number of −OH and other polar groups in natural biopolymers. Thermomechanical processing allows the breakage of the intramolecular and intermolecular hydrogen bonds and thus increases chain mobility. In this work, biomimetic materials based on chitosan and silk peptides were prepared by thermomechanical processing. The effect of different molecular weights of chitosan on the structure and properties of the composites was investigated. A combination of excellent strength (σ t = 29.8 MPa) and toughness (ε b = 100.5%) was obtained with a certain molecular weight of chitosan, and the toughness (ε b = 143.4%) could be further enhanced by rehydration after drying. Consequently, this research demonstrated that the molecular weight of chitosan significantly influences the structure and properties of the composites. The results of the study provide a reference for the processing of natural polymeric materials by hot-melt methods.

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Section: Resultsmentioning

confidence: 95%

“…24 It was reported that the greater the force between chitosan, the more it could affect the crystallization ability of molecular chains. 46,47 The resultant higher degree of crystallinity might be beneficial to the tensile strength of the composite films (Table S1).…”

Section: X-ray Diffraction (Xrd)mentioning

confidence: 99%

Structure and Properties of Thermomechanically Processed Chitosan-Based Biomimetic Composite Materials: Effect of Chitosan Molecular Weight

Zhang

Gao

Wang

et al. 2023

ACS Sustainable Chem. Eng.

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“…188 Various techniques utilizing multiple cross-linking networks have been employed to produce robust hydrogel fibers. 37,189 Drawing inspiration from this, the aim is to create gel fibers with improved mechanical toughness and strength by introducing intermolecular-linking networks. Hence, there is a strong need to create an effective method for manipulating molecular networks within gel fibers to enhance their overall mechanical performance.…”

Section: Twisting/spiral Architecture and Crosslinkingmentioning

confidence: 99%

“…Various techniques utilizing multiple cross‐linking networks have been employed to produce robust hydrogel fibers 37,189 . Drawing inspiration from this, the aim is to create gel fibers with improved mechanical toughness and strength by introducing intermolecular‐linking networks.…”

Section: Strengthening Strategies For Mechanically Strong Fibersmentioning

confidence: 99%

Innovations in spider silk‐inspired artificial gel fibers: Methods, properties, strengthening, functionality, and challenges

Khan,

Guo,

et al. 2024

SusMat

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Spider silk, possessing exceptional combination properties, is classified as a bio‐gel fiber. Thereby, it serves as a valuable origin of inspiration for the advancement of various artificial gel fiber materials with distinct functionalities. Gel fibers exhibit promising potential for utilization in diverse fields, including smart textiles, artificial muscle, tissue engineering, and strain sensing. However, there are still numerous challenges in improving the performance and functionalizing applications of spider silk‐inspired artificial gel fibers. Thus, to gain a penetrating insight into bioinspired artificial gel fibers, this review provided a comprehensive overview encompassing three key aspects: the fundamental design concepts and implementing strategies of gel fibers, the properties and strengthening strategies of gel fibers, and the functionalities and application prospects of gel fibers. In particular, multiple strengthening and toughening mechanisms were introduced at micro, nano, and molecular‐level structures of gel fibers. Additionally, the existing challenges of gel fibers are summarized. This review aims to offer significant guidance for the development and application of artificial gel fibers and inspire further research in the field of high‐performance gel fibers.

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“…Alginate‐based fibers with good biocompatibility and non‐immunogenicity demonstrate wide applications in biomedical materials. Xu et al 109 reported an alginate ester/Antarctic krill protein (AE/AKP) composite fiber with a covalent cross‐linked and hydrogen‐bonded structure was synthesized on the basis of the acid‐catalyzed phase separation reaction spinning. By using sodium alginate as the matrix, cytotoxicity test results revealed that the fiber exhibits nontoxicity.…”

Section: Strategies For the Fabrication Of Tough Hydrogelsmentioning

confidence: 99%

Recent developments in artificial spider silk and functional gel fibers

Khan

Shafiq

et al. 2023

SmartMat

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It is highly desirable to develop fiber materials with high strength and toughness while increasing fiber strength always results in a decrease in toughness. Spider silk is a natural fiber material with an excellent combination of high strength and toughness, which is produced from the spinning dope solution by gelation and drawing spinning process. This encourages people to prepare artificial fibers by mimicking the material, structure, and spinning of natural spider silk. In this review, we first summarized the preparation of artificial spider silk prepared via such a gelation process from different types of materials, including nonrecombinant proteins, recombinant proteins, polypeptides, synthetic polymers, and polymer nanocomposites. In addition, different spinning approaches for spinning artificial spider silk are also summarized. In the third section, some novel application scenarios of the artificial spider silk were summarized, such as artificial muscles, sensing, and smart fibers.

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An acid-catalyzed polyol in situ crosslinked alginate ester/Antarctic krill protein composite fiber with improved strength and water resistance

Abstract: Alginate-based fiber with good biocompatibility and non-immunogenicity has a wide application in biomedical materials. However, low strength and poor water resistance still limit the application in tissue engineering materials. In...

Cited by 4 publications

References 30 publications

Structure and Properties of Thermomechanically Processed Chitosan-Based Biomimetic Composite Materials: Effect of Chitosan Molecular Weight

Structure and Properties of Thermomechanically Processed Chitosan-Based Biomimetic Composite Materials: Effect of Chitosan Molecular Weight

Innovations in spider silk‐inspired artificial gel fibers: Methods, properties, strengthening, functionality, and challenges

Recent developments in artificial spider silk and functional gel fibers

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