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Carbon nanotubes on a spider silk scaffold.


ABSTRACT: Understanding the compatibility between spider silk and conducting materials is essential to advance the use of spider silk in electronic applications. Spider silk is tough, but becomes soft when exposed to water. Here we report a strong affinity of amine-functionalised multi-walled carbon nanotubes for spider silk, with coating assisted by a water and mechanical shear method. The nanotubes adhere uniformly and bond to the silk fibre surface to produce tough, custom-shaped, flexible and electrically conducting fibres after drying and contraction. The conductivity of coated silk fibres is reversibly sensitive to strain and humidity, leading to proof-of-concept sensor and actuator demonstrations.

SUBMITTER: Steven E 

PROVIDER: S-EPMC3778718 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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Carbon nanotubes on a spider silk scaffold.

Steven Eden E   Saleh Wasan R WR   Lebedev Victor V   Acquah Steve F A SF   Laukhin Vladimir V   Alamo Rufina G RG   Brooks James S JS  

Nature communications 20130101


Understanding the compatibility between spider silk and conducting materials is essential to advance the use of spider silk in electronic applications. Spider silk is tough, but becomes soft when exposed to water. Here we report a strong affinity of amine-functionalised multi-walled carbon nanotubes for spider silk, with coating assisted by a water and mechanical shear method. The nanotubes adhere uniformly and bond to the silk fibre surface to produce tough, custom-shaped, flexible and electric  ...[more]

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