Macromol. Mater. Eng. 7/2018

Liu, Yiwu; Liu, Junjie; Ding, Qian; Tan, Jinghua; Chen, Zhiquan; Chen, Junyi; Zuo, Xuri; Tang, Ao; Ke-jian, Zeng

doi:10.1002/mame.201870026

Cited by 5 publications

(5 citation statements)

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“…This is attributed to the temperature‐activated auto‐shrinkage of hydrogels that reduces the interfacial water between the hydrogel and the skin, which therefore promote Schiff‐base reaction to enhance tissue adhesion. Interestingly, the adhesiveness of PNI‐HA at 37 °C is also found better than that of P‐D‐C/A/W [ 56 ] (5.5 kPa underwater adhesion strength) and triple‐network gelatin/polyvinyl alcohol composite hydrogels [ 57 ] (Gel‐CG6, 7.7 kPa adhesion strength) that reported in previous studies. PNI‐HA could not only adhere to the wound like other clinical glues, but the higher adhesion strength contributed to accelerated wound closure through thermo‐stimulated auto‐shrinkage, which promoted wound repair.…”

Section: Resultsmentioning

confidence: 81%

Double Cross‐Linked Biomimetic Hyaluronic Acid‐Based Hydrogels with Thermo‐Stimulated Self‐Contraction and Tissue Adhesiveness for Accelerating Post‐Wound Closure and Wound Healing

Zhao

Yi²,

et al. 2023

Adv Funct Materials

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When skin trauma occurs, rapid achievement of the post‐wound closure is required to prevent microbial invasion, inhibit scar formation and promote wound healing. To develop a wound dressing for accelerating post‐wound‐closure and wound healing, a thermo‐responsive and tissue‐adhesive hydrogel with interpenetrating polymer networks (IPN) is fabricated based on N‐dimethylbisacrylamide (NIPAM) and glutaraldehyde (GTA) cross‐linked hyaluronic acid (HA). Results not only confirm the thermo‐stimulated self‐contraction and tissue adhesiveness of the HA‐based IPN (PNI‐HA), which effectively aids wound closure via mechanical stretch, but also verify the hemocompatibility and cytocompatibility of PNI‐HA that tend to accelerate wound healing. In vivo, a mouse model of total skin defect demonstrates that PNI‐HA acting as hydrogel sealant significantly achieves the sutureless post‐wound‐closure at the early stage of wound healing, and then promotes wound healing by reducing inflammatory cells infiltration, promoting angiogenesis as well as reducing collagen deposition. These results indicate that the developed thermo‐responsive and tissue‐adhesive hydrogel dressing offers a candidate to serve as a tissue sealant for wound healing.

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Section: Resultsmentioning

confidence: 81%

Double Cross‐Linked Biomimetic Hyaluronic Acid‐Based Hydrogels with Thermo‐Stimulated Self‐Contraction and Tissue Adhesiveness for Accelerating Post‐Wound Closure and Wound Healing

Zhao

Yi²,

et al. 2023

Adv Funct Materials

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“…Thanks to its high flexibility and adhesion force, it can be applied to many kinds of surfaces and can be used in motion detection and health monitoring applications by easily adhering to human skin (Figure 8c). [ 171,172 ] In the polymerization step, crosslinks are established with the contribution of polyvinyl alcohol (PVA), taking the mechanical properties and resistive sensitivity one step further. Due to its flexibility, gelatin, which is also evaluated in the literature as an electroactive material, will be preferred more frequently in the coming years owing to its mechanical strength.…”

Section: Sustainable Materials In Flexible Electronicsmentioning

confidence: 99%

Sustainable Macromolecular Materials in Flexible Electronics

Kılıçarslan

Bozyel

Gökcen

et al. 2022

Macro Materials & Eng

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With advances in electronics, the concept of flexible electronics has left traditional designs behind. Many concepts, such as sensors, transistors, soft robotics, data, and energy storage devices have begun to find more widespread and flexible areas of use. From this point of view, using environmentally friendly, abundant, and renewable natural materials that reduce carbon emissions in the production and disposal of these components is the first step toward the concept of sustainable flexible electronics. This review deals with the integration of sustainable natural materials obtained from plant, animal, and bacterial sources into sensors, displays, data storage, power generation, and soft robotic systems, with appropriate examples compiled from the last ten years. In addition, limitations in the use of sustainable materials as flexible electronic components and their potential for use in innovative electronic applications in the future are foreseen.

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“…The difference of the Young's modulus between the interdendritic 14H-LPSO phases and α-Mg matrix can result in the accommodation at the interface, and thus, the microcracks easily nucleated at the interface between the interdendritic 14H-LPSO phases and α-Mg matrix [40][41][42]. The finer DRX grain boundaries adjacent to the interdendritic 14H-LPSO phases can restrict the micro-cracks spread in the α-Mg matrix.…”

Section: Effects Of the Interdendritic 14h-lpso Phases Distribution O...mentioning

confidence: 99%

Influences of the Texture Characteristic and Interdendritic LPSO Phase Distribution on the Tensile Properties of Mg–Gd–Y–Zn–Zr Sheets Through Hot Rolling

Teng

2021

Acta Metall. Sin. (Engl. Lett.)

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The Mg-Gd-Y-Zn-Zr alloy sheets with different texture characteristics and distribution of the interdendritic long periodstacking ordered (LPSO) phases were fabricated through altering the final rolling reduction (FRR). The results showed that the texture characteristic was closely related to FRR and affected the tensile properties of the resulted sheets to some extent. The Schmid factor (SF) of the basal ⟨a⟩ slip improved with further FRR, which was ascribed to that the dynamic recrystallization (DRX) grains expand into the deformed grains with basal texture. However, the improvement of the tensile yield strength (TYS) with further FRR indicates that the strengthening effect from DRX grains surpasses the weakening effect from the elevated SF. The formation of the line-distributed interdendritic 14H-LPSO phases can also affect the tensile properties of the resulted sheets. The line-distributed interdendritic 14H-LPSO phases along rolling direction (RD) can act as reinforcing fiber and contribute to the higher TYS along RD and 45° to some extent, which resulted in the higher TYS along 45° compared with that along transverse direction (TD) for each resulted sheet under the circumstance of approximate basal ⟨a⟩ and pyramid ⟨c + a⟩ friction stress. Thus, the tensile yield strength is not only related to the texture, but also depends on the grain size and line-distributed interdendritic LPSO phases. The micro-cracks spread perpendicular to the tension direction, and thus, the larger cracks form within the line-distributed 14H-LPSO phases during tension along TD, which accounts for the lower fracture elongation along TD.

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Macromol. Mater. Eng. 7/2018

Cited by 5 publications

References 0 publications

Double Cross‐Linked Biomimetic Hyaluronic Acid‐Based Hydrogels with Thermo‐Stimulated Self‐Contraction and Tissue Adhesiveness for Accelerating Post‐Wound Closure and Wound Healing

Double Cross‐Linked Biomimetic Hyaluronic Acid‐Based Hydrogels with Thermo‐Stimulated Self‐Contraction and Tissue Adhesiveness for Accelerating Post‐Wound Closure and Wound Healing

Sustainable Macromolecular Materials in Flexible Electronics

Influences of the Texture Characteristic and Interdendritic LPSO Phase Distribution on the Tensile Properties of Mg–Gd–Y–Zn–Zr Sheets Through Hot Rolling

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