Electrospun Hydrophobic Polyaniline/Silk Fibroin Electrochromic Nanofibers with Low Electrical Resistance

Abstract

Electronic textiles (E-textiles) have been an area of intense industrial and academic research for years due to their advanced applications. Thus, the goal of this study was to develop highly conductive silk fibroin electrochromic nanofibers for use in E-textiles. The silk nanofibers were prepared by an electrospinning technique, and the conductive polyaniline (PANI) was added to impart the electrical conductivity and electroactive property to the resultant electrospun silk composite nanofibers. The experimental results showed that tuning the electrospinning procedure could control the morphology of the composite nanofibers, thus altering their mechanical properties and surface wettability. Furthermore, the developed PANI/silk composite fibers possess electroactive and electrochromic properties, such as adjusting the applied voltage. The developed strategy demonstrated the feasibility of incorporating not only electrical functionality but also electroactivity into sustainable silk nanofibers using electrospinning technique.

Fabrication of Poly(Ethylene-glycol 1,4-Cyclohexane Dimethylene-Isosorbide-Terephthalate) Electrospun Nanofiber Mats for Potential Infiltration of Fibroblast Cells

“…According to Figure 5 , the water droplet took about 270 s to reach the angle 0° from 120°, which is in the range of hydrophobic surfaces. Even though the surface of PEICT ENM is hydrophobic [ 37 ], the cell infiltration observed was very good because of the interconnected nanofiber network with a smooth morphology, which also played an important role in cell adhesion. Additionally, the WCA test suggested that five minutes were enough as a resting period for fibroblast initial cell adherence on PEICT ENMs.…”

Scale-up fabrication of PVDF-HFP nanofibrous membrane with unique surface properties for efficient separation of oil from water

“…In comparison, the strength and elongation at break of PMMA nanofibrous membrane is 0.59 MPa and 44.1%, respectively, although wrinkled PMMA fibers reported many times. In addition, the breaking strength of nanofiber membranes reported in the literature is generally lower than 6.79 MPa, such as silk fibroin 3.91 MPa 46 and 3.45 Mpa, 47 poly (lactic acid) 0.97 Mpa, 48 polycaprolactone 2.15 Mpa, 49 polyacrylonitrile 6.51, 50 4.3 51 and 3.8 52 MPa, polystyrene 1.5 Mpa, 53 PVDF 2.2 54 and 2.97 MPa 55 (Table 3). Moreover, the nanofiber membrane reported always showed poor elongation at break, almost lower than 50% (Table 3).…”

Electroactive aniline tetramer–spider silks with conductive and electrochromic functionality

“…These electrochromic behaviors are similar to the related polyaniline studies reported in literature since the aniline tetramer is the smallest oligomer unit that can fully represent the structure of polyaniline. 40–44…”