Evolution of conformation and thermal properties of bovine hides collagen in the sodium sulphide solution

Liu, Hui; Li, Mengya; Tang, Keyong; Liu, Jie; Li, Xiumin; Meng, Xianhong

doi:10.1016/j.molliq.2022.120449

Cited by 9 publications

(2 citation statements)

References 43 publications

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“…As shown in Figure S4b, three obvious bands were separated from the tested collagen sample. Using markers as a reference, it can be seen that the molecular weight of the obtained bands was approximately 220 and 100 kDa, aligning with the molecular weights of collagen’s β, α 1 , and α 2 chains, which confirms that the extracted collagen consists of high molecular-weight chains with an intact triple-helix structure …”

Section: Resultsmentioning

confidence: 99%

CQDs-Cross-Linked Conductive Collagen/PAA-Based Nanocomposite Organohydrogel Coupling Flexibility with Multifunctionality for Dual-Modal Sensing of Human Motions

Lan,

Zhang,

Zhou

et al. 2024

ACS Appl. Mater. Interfaces

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Conductive hydrogels are ideal materials for intelligent medical devices, human-machine interfaces, and flexible bioelectrodes due to their adjustable mechanical properties and electrical responsiveness, whereas it is still a great challenge to achieve the integration of excellent flexibility and biocompatibility into one hydrogel sensor while also incorporating self-healing, selfadhesion, environmental tolerance, and antimicrobial properties. Here, a nanocomposite conductive organohydrogel was constructed by using collagen (Col), alginate-derived carbon quantum dots (OSA-CQDs), poly(acrylic acid) (PAA), ethylene glycol reduced AgNPs, and Fe 3+ ions. Depending on OSA-CQDs with multiple chemical binding sites and high specific surface area as cross-linkers, while coupling highly biologically active Col chains and PAA chains are serving as an energy dissipation module, the resulting organohydrogel exhibited excellent flexibility (795% of strain, 193 kPa of strength), high cell compatibility (>95% survival rate), self-healing efficiency (HE = 79.5%), antifreezing (−20 °C), moisturizing (>120 h), repeatable adhesion (strength >20 kPa, times >10), inhibitory activity against Escherichia coli and Staphylococcus aureus (9 and 21.5 cm 2 ), conductivity, and strain sensitivity (σ = 1.34 S/m, gauge factor (GF) = 11.63). Based on the all-in-one integration of multifunction, the organohydrogel can collaboratively adapt to the multimode of strain sensing and electrophysiological sensing to realize wireless real-time monitoring of human activities and physiological health. Therefore, this work provides a new and common platform for the design and sensing of next-generation hydrogel-based smart wearable sensors.

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Section: Resultsmentioning

confidence: 99%

CQDs-Cross-Linked Conductive Collagen/PAA-Based Nanocomposite Organohydrogel Coupling Flexibility with Multifunctionality for Dual-Modal Sensing of Human Motions

Lan,

Zhang,

Zhou

et al. 2024

ACS Appl. Mater. Interfaces

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“…Tang and Pei et al conducted a series of investigations on dissolving collagen aggregates from biowastes or natural tissues to building blocks for isolation in aqueous solutions [94,95]. The ability of collagen fibers to dissolve in various solvents has been well-established [96], including collagen dissolving in NaBr aqueous solutions without excessive degradation [97]. The evolutionary mechanism of bovine collagen hiding conformation in Na 2 S solution was clarified, whereby its capacity for hydrolysis follows the order NaOH < NaHS < Na 2 S under the same conditions.…”

Section: Dissolutionmentioning

confidence: 99%

Structure, extraction, processing, and applications of collagen as an ideal component for biomaterials - a review

et al. 2023

Self Cite

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Collagen with a multi-hierarchical architecture exhibits powerful biological performance, thus being developed in biomedical applications as a processing building block. The isolated collagen after extraction from biological tissues can be processed into various forms such as fibrils, scaffolds, membranes, microspheres, hydrogels, and sponges for further use in specific applications. This review briefly discusses the multi-hierarchical structure, powerful biological performances, extraction, and processing approaches of collagen as a natural biomaterial. The processing of collagen including dissolution, self-assembly, cross-linking, and electrospinning, is discussed to show more feasibility for specific applications of collagen composite biomaterials. Further emphasis is directed towards the biomedical applications of drug and gene delivery, as well as tissue repair involving bone, cartilage, vascular, and corneal, along with wound healing. Additionally, there is a focus on the development of flexible sensors and electronic skins (e-skins). Furthermore, the potential challenges and perspectives for the development of collagen-based biomaterials are proposed. In short, collagen-based biomaterials are expected to facilitate sustainable development and the next generation of advanced biomaterial applications. Graphical Abstract

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Electrochemical Sensors from Biodegradable Materials

Ahrouch,

Lamaoui,

Ali

et al. 2023

Handbook of Nanosensors

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Evolution of conformation and thermal properties of bovine hides collagen in the sodium sulphide solution

Cited by 9 publications

References 43 publications

CQDs-Cross-Linked Conductive Collagen/PAA-Based Nanocomposite Organohydrogel Coupling Flexibility with Multifunctionality for Dual-Modal Sensing of Human Motions

CQDs-Cross-Linked Conductive Collagen/PAA-Based Nanocomposite Organohydrogel Coupling Flexibility with Multifunctionality for Dual-Modal Sensing of Human Motions

Structure, extraction, processing, and applications of collagen as an ideal component for biomaterials - a review

Electrochemical Sensors from Biodegradable Materials

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