Tensile properties of ag-EVOH electrospinning nanofiber mats for large muscle scaffolds

Zhang, Chuanwei; Liu, Dandan; Xu, Chao; Liu, Dianzi; Wang, Bin

doi:10.1080/15376494.2018.1508794

Cited by 6 publications

(2 citation statements)

References 25 publications

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“…EVOH increases the viscosity of the solution, reducing the stretching effect of the electric field force during the fiber formation, thus yielding in larger fiber diameters. This has also been verified in previous work (Zhang, et al, 2018).…”

Section: Process Parameter Analysissupporting

confidence: 91%

AgNP-AC Composite Fibers and its Adsorption and Antibacterial Properties

et al. 2022

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In this study, the electrospinning method was used to prepare silver nanoparticle–activated carbon (AgNP-AC) composite nanofiber membranes, aiming to obtain a high-performance dual-functional filter composite fiber membrane with good antibacterial and adsorption properties. A scanning electron microscope (SEM), X-ray diffractometer (XRD), and other instruments were used to characterize the morphology and structure of the composite nanofibers. The effects of different concentrations of activated carbon, silver, and polymer (polyethylene–vinyl alcohol—EVOH) on the fiber morphology were discussed. The adsorption performance and antibacterial performance of the composite fiber membrane were investigated to verify the mutual influence of silver and activated carbon. The results show that with the increase in the activated carbon and silver concentration, the fiber diameter of the AgNP-AC membrane increase and the diameter distribution tends to become uniform. When the mass fraction of polymer EVOH is 10% and the concentration ratio of silver nitrate and carbon is 0.05 and 0.085 (g/ml), the adsorption performance of the composite fiber membrane is at the best with an adsorption rate of 94.07%. The AgNP-AC composite nanofiber membrane also demonstrates a good antibacterial function against Staphylococcus aureus and is most effective in the first 8 h. However, it is found that the silver concentration is proportional to the antibacterial ability, but the activated carbon has a certain inhibitory effect on the antibacterial properties.

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Section: Process Parameter Analysissupporting

confidence: 91%

AgNP-AC Composite Fibers and its Adsorption and Antibacterial Properties

et al. 2022

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“…Lower voltages result in the accumulation of the electrospinning solution at the tip of the needle due to the weak electrical force [ 21 ]. While a high applied voltage increases the rate at which a polymer filament is drawn out of the Taylor cone, resulting in greater fiber elongation and a reduced fiber diameter [ 22 , 23 ]. In addition, fiber morphology was improved with the increase in the flow rate, but further increases in the flow rate could obtain thicker fibers.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Nano/Micro-Structured Electrospun Detection Card for the Detection of Pesticide Residues

Feng

Zhai

Wei

et al. 2021

Foods

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A novel nano/micro-structured pesticide detection card was developed by combining electrospinning and hydrophilic modification, and its feasibility for detecting different pesticides was investigated. Here, the plain and hydrophilic-modified poly(ε-caprolactone) (PCL) fiber mats were used for the absorption of indolyl acetate and acetylcholinesterase (AChE), respectively. By pre-treating the fiber mat with ethanol, its surface wettability was improved, thus, promoting the hydrolysis of the PCL fiber mat. Furthermore, the absorption efficiency of AChE was improved by almost two times due to the increased hydrophilicity of the modified fiber mat. Noteworthily, this self-made detection card showed a 5-fold, 2-fold, and 1.5-fold reduction of the minimum detectable concentration for carbofuran, malathion, and trichlorfon, respectively, compared to the national standard values. Additionally, it also exhibited good stability when stored at 4 °C and room temperature. The food detection test showed that this nano/micro-based detection card had better detectability than the commercial detection card. Therefore, this study offers new insights into the design of pesticide detection cards, which also broadens the application of electrospinning technique.

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