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Bioinspired Fabrication of one dimensional graphene fiber with collection of droplets application.


ABSTRACT: We designed a kind of smart bioinspired fiber with multi-gradient and multi-scale spindle knots by combining polydimethylsiloxane (PDMS) and graphene oxide (GO). Multilayered graphene structures can produce obvious wettability change after laser etching due to increased roughness. We demonstrate that the cooperation between curvature and the controllable wettability play an important role in water gathering, which regulate effectively the motion of tiny water droplets. In addition, due to the effective cooperation of multi-gradient and multi-scale hydrophilic spindle knots, the length of the three-phase contact line (TCL) can be longer, which makes a great contribution to the improvement of collecting efficiency and water-hanging ability. This study offers a novel insight into the design of smart materials that may control the transport of tiny drops reversibly in directions, which could potentially be extended to the realms of in microfluidics, fog harvesting filtration and condensers designs, and further increase water collection efficiency and hanging ability.

SUBMITTER: Song YY 

PROVIDER: S-EPMC5608905 | biostudies-other | 2017 Sep

REPOSITORIES: biostudies-other

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Bioinspired Fabrication of one dimensional graphene fiber with collection of droplets application.

Song Yun-Yun YY   Liu Yan Y   Jiang Hao-Bo HB   Li Shu-Yi SY   Kaya Cigdem C   Stegmaier Thomas T   Han Zhi-Wu ZW   Ren Lu-Quan LQ  

Scientific reports 20170921 1


We designed a kind of smart bioinspired fiber with multi-gradient and multi-scale spindle knots by combining polydimethylsiloxane (PDMS) and graphene oxide (GO). Multilayered graphene structures can produce obvious wettability change after laser etching due to increased roughness. We demonstrate that the cooperation between curvature and the controllable wettability play an important role in water gathering, which regulate effectively the motion of tiny water droplets. In addition, due to the ef  ...[more]

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