Bioinspired micro-/nanostructure fibers with a water collecting property

Chen, Yuan; Zheng, Yongmei

doi:10.1039/c4nr02064b

Cited by 86 publications

(49 citation statements)

References 96 publications

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“…Subsequently, continuous condensation and directional collection of sub‐millimeter‐sized water drops around spindle‐knots are driven by the surface energy gradients and Laplace pressure difference, but the movement of micrometer‐sized drops seems to be more difficult because of neither force on its own is able to overcome the larger hysteresis effects. By both factors acting together, spider silk exhibits its directional water‐harvesting ability …”

Section: Natural Creatures and Mechanisms Of Collecting Watermentioning

confidence: 99%

“…By both factors acting together, spider silk exhibits its directional water-harvesting ability. [82,83,88] Inspired by this ability of spider silk, four main strategies are widely utilized in the fabrication of biomimetic materials for water collection, i.e., dip-coating, electro-dynamic, He is committed to nanomaterial fabrication and condensate microdrops self-propelling application at present. microfluid, and fluid-coating.…”

Section: Spider Silkmentioning

confidence: 99%

“…Animals and plants, over the past hundreds of million years, have evolved and survived in extreme conditions. For example in the Namib desert, beetles, spider, cactus, Nepenthes alata have adopted water harvesting features as shown in Figure . To develop man‐made materials for water‐harvesting, it is essential to first understand the water‐harvesting mechanisms, before the biomimetic materials are developed.…”

Section: Introductionmentioning

confidence: 99%

“…For example in the Namib desert, beetles, spider, cactus, Nepenthes alata have adopted water harvesting features as shown in Figure 1. [83,[88][89][90][91] To develop man-made materials for water-harvesting, it is essential to first understand the waterharvesting mechanisms, before the biomimetic materials are developed. Therefore, it is the purpose of this review to present the latest understanding and technology for artificial fog-harvesting materials inspired by nature.…”

Section: Introductionmentioning

confidence: 99%

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Bioinspired Special Wettability Surfaces: From Fundamental Research to Water Harvesting Applications

Zhang

Huang

Chen

et al. 2016

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291

201

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Nowadays, the pollution of water has become worse in many parts of the world, which causes a severe shortage of clean water and attracts widespread attention worldwide. Bioinspired from nature, i.e. spider silk, cactus, Namib desert beetle, Nepenthes alata, special wettability surfaces have attracted great interest from fundamental research to water-harvesting applications. Here, recently published literature about creatures possessing water-harvesting ability are reviewed, with a focus on the corresponding water-harvesting mechanisms of creatures in dry or arid regions, consisting of the theory of wetting and transporting. Then a detailed account of the innovative fabrication technologies and bionic water-harvesting materials with special wetting are summarized, i.e. bio-inspired artificial spider silk, bio-inspired artificial cactus-like structures, and bio-inspired artificial Namib desert beetle-like surfaces. Special attentions are paid to the discussion of the advantages and disadvantages of the technologies, as well as factors that affect the amount of water-harvesting. Finally, conclusions, future outlooks and the current challenges for future development of the water-harvesting technology are presented and discussed.

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Section: Natural Creatures and Mechanisms Of Collecting Watermentioning

confidence: 99%

Section: Spider Silkmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Bioinspired Special Wettability Surfaces: From Fundamental Research to Water Harvesting Applications

Zhang

Huang

Chen

et al. 2016

Small

291

201

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“…Scale bars: 50 μm. [32][33][34] and we have observed the effect of stretching. The fibers were highly stretchable (Fig.…”

Section: Spinning Of Continuous Sf Hydrogel Fibersmentioning

confidence: 81%

Biomimetic spinning of silk fibers and in situ cell encapsulation

et al. 2016

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In situ embedding of sensitive materials (e.g., cells and proteins) in silk fibers without damage presents a significant challenge due to the lack of mild and efficient methods. Here, we report the development of a microfluidic chip-based method for preparation of meter-long silk fibroin (SF) hydrogel fibers by mimicking the silkworm-spinning process. For the spinning of SF fibers, alginate was used as a sericin-like material to induce SF phase separation and entrap liquid SFs, making it possible to shape the outline of SF-based fibers under mild physicochemical conditions. L929 fibroblasts were encapsulated in the fibric hydrogel and displayed excellent viability. Cell-laden SF fibric hydrogels prepared using our method offer a new type of SF-based biomedical device with potential utility in biomedicine.

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Magnetically Induced Fog Harvesting via Flexible Conical Arrays

Peng

Yang

et al. 2015

Adv Funct Materials

154

132

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Water is the driving force of all nature. Securing freshwater has been one of the most important issues throughout human history, and will be important in the future, especially in the next decade. Fog is ubiquitous in nature and is therefore considered as an alternative and sustainable freshwater resource. Nature has long served as a source of inspiration to develop new fog‐harvesting technologies. However, the collection of freshwater from static fog is still a challenge for the existing bio‐inspired fog‐harvesting systems. Herein, magnetically induced fog harvesting under windless conditions through the integration of cactus‐inspired spine structures and magnetically responsive flexible conical arrays is reported. Under an external magnetic field, static fog can be spontaneously and continuously captured and transported from the tip to the base of the spine due to the Laplace pressure difference. This work demonstrates the advantage of collecting fog water, especially in windless regions, which provides a new avenue for fog harvesting and can serve as a source of inspiration to further optimizations of existing fog‐water‐harvesting strategies.

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Bioinspired micro-/nanostructure fibers with a water collecting property

Cited by 86 publications

References 96 publications

Bioinspired Special Wettability Surfaces: From Fundamental Research to Water Harvesting Applications

Bioinspired Special Wettability Surfaces: From Fundamental Research to Water Harvesting Applications

Biomimetic spinning of silk fibers and in situ cell encapsulation

Magnetically Induced Fog Harvesting via Flexible Conical Arrays

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