Conducting nanofibers of polyaniline (PANI) doped with camphor-10-sulfonic acid (HCSA) and blended with different polymers, such as polymethyl methacrylate (PMMA) and polyvinyl acetate (PVAc), have been fabricated using the electrospinning technique. Scanning electron microscopy (SEM) and thermal gravimetric analysis (TGA) were utilized to characterize the morphology and the thermal stability of PANI-blended fibers. An extensive study was performed to understand the copolymer influence on both the structural and surface properties of the realized conductive thin films. Samples main electrical characteristics, as conductivity, specific capacitance and electrochemical performances were tested. The better mats were obtained with the use of PVAc copolymer, which showed a conductivity value two orders of magnitude higher than the PMMA system. Aiming at further improving the electrochemical features of these blended mats, hybrid fibers based on PANI/PVAc/graphene oxide and PANI/PVAc/iron oxide were also produced and characterized. The obtained mats were potentially addressed to numerous practical fields, including sensors, health applications, smart devices and multifunctional textile materials.
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http://dx.doi.org/10.3390/nano11051269 | DOI Listing |
Int J Biol Macromol
December 2024
Department of Textile Engineering, Istanbul Technical University, Istanbul, Turkey. Electronic address:
Currently, the primary composition of fibrous filter materials predominantly relies on synthetic polymers derived from petroleum. The utilization of these polymers, as well as their production process, has a negative impact on the environment. Consequently, the adoption of air filter media fabricated from natural fibers would yield significant environmental benefits.
View Article and Find Full Text PDFEquine Vet J
December 2024
Hartpury University, Equestrian Performance Research Centre, Gloucester, UK.
Background: Noseband adjustment should avoid discomfort and allow some jaw movement.
Objectives: To determine pressure beneath a cavesson noseband at five tightness levels during standing and chewing. It was hypothesised that increased noseband tightness is associated with increases in nasal and mandibular pressures while standing and chewing, accompanied by increases in eye temperature and blink rate.
Environ Entomol
December 2024
Department of Entomology, Michigan State University, East Lansing, MI 48824, USA.
Nitidulid beetles (Coleoptera: Nitidulidae), the overland vectors of the Bretziella fagacearum fungus that causes oak wilt, were monitored in infection centers in Quercus rubra stands in northern Michigan, USA using baited, wind-oriented traps for 2 years. First nitidulid captures, accounting for <1.5% of total annual captures, occurred in late April in both years (<50 cumulative degree days [DDs]; base 10°C).
View Article and Find Full Text PDFChemSusChem
September 2024
Department of Wood Science, Advanced Renewable Materials Laboratory, University of British Columbia, 2424 Main Mall, Vancouver, BC, V6T 1Z4, Canada.
Renewable feedstocks are sought for clean technology applications, including energy storage applications. In this study, LignoForce™ lignin, a biobased aromatic polymer commercially isolated from wood, was fractioned into two parts using acetone, and the resulting lignin fractions had distinct thermo-rheological behavior. These two fractionated lignins were combined in various ratios and transformed into nanofibers by electrospinning.
View Article and Find Full Text PDFFront Bioeng Biotechnol
July 2024
Department of Mechanical Engineering, Indian Institute of Technology Guwahati, Guwahati, India.
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