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A Mechanically Actuating Carbon-Nanotube Fiber in Response to Water and Moisture

Angewandte Chemie (International ed.), 2015-12, Vol.54 (49), p.14880-14884 [Peer Reviewed Journal]

2015 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim ;2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. ;Copyright Wiley Subscription Services, Inc. Dec 2015 ;ISSN: 1433-7851 ;EISSN: 1521-3773 ;DOI: 10.1002/anie.201507108 ;PMID: 26460095 ;CODEN: ACIEAY

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  • Title:
    A Mechanically Actuating Carbon-Nanotube Fiber in Response to Water and Moisture
  • Author: He, Sisi ; Chen, Peining ; Qiu, Longbin ; Wang, Bingjie ; Sun, Xuemei ; Xu, Yifan ; Peng, Huisheng
  • Subjects: actuating ; Blood flow ; carbon nanotubes ; Channels ; Contraction ; fiber ; Fibers ; hierarchical channels ; Louvers ; Moisture ; Nanotubes ; Smart materials ; water sensors ; Windows (apertures)
  • Is Part Of: Angewandte Chemie (International ed.), 2015-12, Vol.54 (49), p.14880-14884
  • Description: A new family of hierarchically helical carbon‐nanotube fibers with many nano‐ and micro‐scale channels has been synthesized. They demonstrate remarkable mechanical actuations in response to water and moisture. The water or moisture is first rapidly transported through the trunk micron‐scale channels and then efficiently infiltrates into the interconnected capillary nanoscale channels, similar to the blood flow in our body. Therefore, rapid and large contraction and rotation of the fiber occurs with a high reversibility. These mechanically actuating fibers are promising for various applications, and smart windows and louvers have been investigated as two demonstrations. Water lot of twisting: Hydrophilic, hierarchically helical carbon‐nanotube fibers are synthesized. In response to water and moisture they rapidly contract and rotate. The large numbers of nano‐ and micron‐scale channels are responsible for these moisture‐sensing properties. The fibers are lightweight, flexible, and strong, making them suitable for applications, such as smart switches, actuators, robots, and biomimetic devices.
  • Publisher: Weinheim: WILEY-VCH Verlag
  • Language: English
  • Identifier: ISSN: 1433-7851
    EISSN: 1521-3773
    DOI: 10.1002/anie.201507108
    PMID: 26460095
    CODEN: ACIEAY
  • Source: Alma/SFX Local Collection
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