Bioinspired Robust Helical‐Groove Spindle‐Knot Microfibers for Large‐Scale Water Collection

Wang, Shaomin; Zhu, Lingmei; Yu, Dongdong; Han, Xuefeng; Zhong, Lieshuang; Hou, Yongping; Zheng, Yongmei

doi:10.1002/adfm.202305244

Cited by 11 publications

(1 citation statement)

References 43 publications

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“…Benefitting from its unique hydrophilic rough surfaces and the presence of a periodic knot and joint structure. Wang et al, 111 to further improve water collection capability, continuously fabricated a bioinspired helical-groove-modified spindleknot (HSK) microfiber, incorporating crack regulation. The morphology and formation can be achieved by altering drawing velocity and coating solution concentration.…”

Section: Humidity-sensitivity and Water-collectionmentioning

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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Section: Humidity-sensitivity and Water-collectionmentioning

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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Moisture Absorbing and Water Self‐Releasing from Hybrid Hydrogel Desiccants

Nah,

Lee,

et al. 2023

Adv Funct Materials

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Atmospheric moisture is a valuable resource for fresh water and potentially sustainable energy. However, direct harvesting water from moisture (the vapor form) remains the most challenging. Hybrid desiccants made from hydrogels embedded with salt offer promise in absorbing moisture. However, the desorption process often requires additional energy to heat the samples. Here, poly(acrylic acid) (PAA) hydrogels embedded with lithium chloride are prepared, demonstratng simultaneous moisture absorption and self‐release of liquid water at room temperature with 50–90% relative humidity. The water self‐releasing process can be separated into two distinct stages: 1) surface release, where water droplets grow on the hydrogel surface due to differences in nucleation and diffusion rates, and 2) bulk release, triggered by the collapse of polymer chains, subsequently releasing water from the hydrogel network. Factors such as salt concentration, hydrogel crosslinking density, and film thickness are investigated to better understand the moisture absorption and water‐releasing processes. Moreover, hydrophobic domains are introduced onto the salt‐embedded PAA films, creating an edge effect that enhances the droplet growth rates. When the hydrophobic domains are patterned, the movement of released water can be guided, resulting in a threefold increase in water removal rate attributed to gravitational force.

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Bioinspired Slippery Surfaces for Liquid Manipulation from Tiny Droplet to Bulk Fluid

Wang,

Ma,

Zhu

et al. 2024

Advanced Materials

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Slippery surfaces, which originate in nature with special wettability, have drawn a great deal of attention for both fundamental research and practical applications in a variety of fields due to their unique characteristics of super‐low liquid friction and adhesion. Although the research of bioinspired slippery surfaces is in its infancy, it is a rapidly growing and enormously promising field. Herein, we present a systematic review of recent progress in bioinspired slippery surfaces, beginning with a brief introduction of several typical creatures with slippery property in nature. Subsequently, a detailed discussion the basic concepts of the wetting, friction and drag from micro and macro aspects and focus on the underlying slippery mechanism. We next summarize state‐of‐the‐art developments of the three categories of slippery surfaces of air‐trapped, liquid‐infused and liquid‐like slippery surfaces, including materials, design principles and preparation methods of slippery surfaces and highlight the emerging applications. Finally, the current challenges and future prospects of various slippery surfaces are addressed.This article is protected by copyright. All rights reserved

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Bioinspired Robust Helical‐Groove Spindle‐Knot Microfibers for Large‐Scale Water Collection

Cited by 11 publications

References 43 publications

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

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

Moisture Absorbing and Water Self‐Releasing from Hybrid Hydrogel Desiccants

Bioinspired Slippery Surfaces for Liquid Manipulation from Tiny Droplet to Bulk Fluid

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