2010
DOI: 10.1038/nature08729
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Directional water collection on wetted spider silk

Abstract: Many biological surfaces in both the plant and animal kingdom possess unusual structural features at the micro- and nanometre-scale that control their interaction with water and hence wettability. An intriguing example is provided by desert beetles, which use micrometre-sized patterns of hydrophobic and hydrophilic regions on their backs to capture water from humid air. As anyone who has admired spider webs adorned with dew drops will appreciate, spider silk is also capable of efficiently collecting water from… Show more

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Cited by 1,828 publications
(1,586 citation statements)
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References 27 publications
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“…Inspired by nature, [1][2][3][4][5][6][7][8][9][10][11][12][13][14] the special wettability of material surfaces, which is engineered via synergistic utilization of microscale surface structures and surface chemistry has been one of the most active research fields, and it can play a key role in addressing problems related to energy, environment, resources, and health. Efforts in the past decades have explored controllable fabrication, functionality, and performance optimization of bionic superhydrophobic surfaces with a contact angle above 150°, and they have resulted in technological innovations such as self-cleaning, drag-reduction, anticorrosion, antifogging, antifreezing and oil-water separation.…”
Section: Introductionmentioning
confidence: 99%
“…Inspired by nature, [1][2][3][4][5][6][7][8][9][10][11][12][13][14] the special wettability of material surfaces, which is engineered via synergistic utilization of microscale surface structures and surface chemistry has been one of the most active research fields, and it can play a key role in addressing problems related to energy, environment, resources, and health. Efforts in the past decades have explored controllable fabrication, functionality, and performance optimization of bionic superhydrophobic surfaces with a contact angle above 150°, and they have resulted in technological innovations such as self-cleaning, drag-reduction, anticorrosion, antifogging, antifreezing and oil-water separation.…”
Section: Introductionmentioning
confidence: 99%
“…It can be seen that all of the rays from the light source are guided to the left side, whereas a majority of the rays are absorbed on the right side. The direction in which the light intensity is at its maximum can be determined with the aid of Snell's law 1 . Referring to Figure 3e, it follows from this law that…”
Section: Fabrication Of the Lucius Prism Array The Fabrication Of Thementioning
confidence: 99%
“…M any biological systems show intriguing directional and asymmetric structures for specific functions [1][2][3][4][5][6][7][8][9] . Examples include the directional water collection on periodic spindle knots in spider silk 1 and the adhesion hysteresis of hierarchically organized slanted hairs on gecko's feet [6][7][8][9] .…”
mentioning
confidence: 99%
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“…For instance, the beetles in the desert can take advantage of the hydrophilic and hydrophobic structures of its back to collect water 1, 2, 3. Also, the spider silk is able to harvest abundant water by using a periodic joints and spindle‐knots structure 4, 5. Moreover, the cactus, a kind of well‐known drought‐resistant plant, also shows an intriguing capability of fog collection and water transportation.…”
mentioning
confidence: 99%