Fabrication and properties of conductive conjugated polymers/silk fibroin composite fibers

Xia, Youyi; Lu, Yun

doi:10.1016/j.compscitech.2007.10.044

Cited by 102 publications

(82 citation statements)

References 31 publications

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“…The typically used fabrication strategies, the resultant architectures and the relevant length scales at which these tend to be applied are summarized in Table 3. [51], [68,75], [61], [53,87], [19,94], [122,194])…”

Section: Applications Of Silk Biomaterialsmentioning

confidence: 98%

“…[52]. In situ polymerization of conductive monomers like pyrrole, aniline and 3,4-ethylene-dioxythiophene with fibroin enable the coating of silks with electrically-conductive layers, leading to potential use in nerve regeneration applications [53]. Mimicking the finding that natural systems harbor co-coordinating metal ions inside protein matrices, metal ion inclusion in silks has also been used as a method to increase tensile strength and stiffness by swapping hydrogen bonds with metal-organic coordinated bonds [54].…”

Section: Silk Compositesmentioning

confidence: 98%

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Silk proteins for biomedical applications: Bioengineering perspectives

Kundu

Kurland

Bano

et al. 2014

Progress in Polymer Science

384

321

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Section: Applications Of Silk Biomaterialsmentioning

confidence: 98%

Section: Silk Compositesmentioning

confidence: 98%

Silk proteins for biomedical applications: Bioengineering perspectives

Kundu

Kurland

Bano

et al. 2014

Progress in Polymer Science

384

321

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“…Previously, PEDOT has been synthesized in the form of nanofibers, which results in a powder in the bulk [33], and through in situ polymerization onto silk fiber surfaces but with low conductivities of ~10 -3 S/cm [34]. PEDOT:PSS has been spun into microfibers [35], and has been coated onto Spandex fabric to act as a back contact for an electrochromic display (σ=0.5 S/cm) [36].…”

Section: Discussionmentioning

confidence: 99%

Conductive polymer-coated threads as electrical interconnects in e-textiles

et al. 2011

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An organic polymer electrical interconnect is demonstrated. The ionomer mixture poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS; 1:2.5, w:w) was cast onto silk fibers from a 50:50 (v:v) ethylene glycol solution by a dip-coating process. Dynamic mechanical analysis (DMA) results show that Young's modulus and mechanical strength are maintained during the coating process from acidic solution (pH ~1). DMA dynamic temperature scans reveal two new thermal transitions once PEDOT:PSS is applied to the silk fiber, and they are assigned to the glass transition temperature (59 o C) and melting point (146 o C) of the ionomer pair. Electrical conductivities of 8.5 S/cm were achieved with four cycles of the dip-coating process, only 10x less than Ag-coated thread control samples. SEM imaging of the PEDOT:PSS-coated fibers show slight texturing to the fibers due to the coating, as well as significant charging in the uncoated samples when compared to PEDOT:PSS-coated samples. The conductive fibers fabricated by this process were successfully applied as electrical interconnects in flexible, fully functional 555 timer circuits stitched into fabric substrates.

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“…Indeed, recent years theoretical and experimental studies have uncovered a number of novel phenomena [9,10]. One of the most interesting finds is that a noble metal ion can be reduced by SF fiber to form zero-valent metal [11][12][13], which could lead to a new class of polymer fiber-supported catalysts.…”

Section: Introductionmentioning

confidence: 99%

Silk fibroin fibers supported with high density of gold nanoparticles: fabrication and application as catalyst

Xia

Wan

2011

Gold Bull

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Silk fibroin (SF) fibers were modified with sulfonated polyaniline and, via an in situ redox technique, a high density of gold (Au) nanoparticles were supported directly on the surface of the fiber. The morphology, formation, and application of the as-prepared product, Au/ SPANI-modified SF composite fiber, were investigated. By controlling the concentration of HAuCl 4 , the density of Au nanoparticles on the composite fiber could be effectively adjusted. It is suggested that sulfonated polyaniline contributes to the generation of a high density of Au nanoparticles supported on the SF fibers. The composite fiber exhibited good activity when taking the reduction of pnitrophenol as a model reaction.

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Fabrication and properties of conductive conjugated polymers/silk fibroin composite fibers

Cited by 102 publications

References 31 publications

Silk proteins for biomedical applications: Bioengineering perspectives

Silk proteins for biomedical applications: Bioengineering perspectives

Conductive polymer-coated threads as electrical interconnects in e-textiles

Silk fibroin fibers supported with high density of gold nanoparticles: fabrication and application as catalyst

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