Development of non-woven nanofibers of egg albumen-poly (vinyl alcohol) blends: influence of solution properties on morphology of nanofibers

Abstract

Egg albumen (EA), a highly functional globular protein with desirable properties, is the least-explored material for biomaterial applications, although it is available in abundance. In our studies, we explored the viability of EA and various blends with biocompatible and non-toxic poly (vinyl alcohol) (PVA) to produce nanofibers for biomedical applications. EA and PVA blends were prepared in various compositions. Electrospinning was used to fabricate non-woven nanofibers. Solution properties, such as viscosity and electrical conductivity, were evaluated for various prepared solutions. Solution viscosity increased with increasing polymer concentration. Solutions with higher contents of EA recorded increased conductivity, which decreased with increasing PVA content. The influence of solution properties on the morphological appearance of as-spun products was studied using scanning electron microscopy. Instead of nanofibers, nanoparticles and microparticles of EA were produced at even higher contents. In contrast, a gradual increase in the addition of PVA content to 8% EA solution resulted in the transformation of particles from large agglomerates to very fine fibers (E100 nm in diameter) because of the influence of polymer content, viscosity and conductivity. The polymer-polymer interactions in the prepared materials have been validated by Fourier transform infrared spectroscopy, differential scanning calorimetry, X-ray diffraction and gel electrophoresis.

Compatibilizing role of carbon nanotubes in poly(vinyl alcohol)/starch blend

“…and the results are summarized in Table . The characteristic peaks of PVA appeared at 11.0, 19.9, and 22.5° 2 θ . The peaks for starch appeared at 15.2, 17.4, 19.0, and 23.1° 2 θ which correspond to the XRD pattern of a mixture of A‐type and Vh‐type crystal structure present in starch and the peak intensities were found to be much weaker than that of PVA .…”

Effect of Potassium Dichromate on Properties and Biodegradation of Gum Arabic Based Bioplastic Membranes

“…All the maximum intensities of the bioplastic membranes doped with K₂Cr₂O₇ were obtained around 2θ=19° except for the GA-diffractogram that was shifted to 2θ=22.34° (Table 2) In addition, pure PVA known as a semi-crystalline polymer [42,43] exhibited a sharper peak at 2θ=19.9° ( Figure 1 and Table 2). …”

Expedient floating process for ultra-thin InGaZnO thin-film-transistors and their high bending performance

“…Except for the ultra-violet annealing procedure, Fig. It is generally known that PVA has a T g of 75 C and a melting temperature (T m ) of 185 C. 21 However, in this work, process temperatures between the T g and T m of PVA were used, since the optimum process temperature should be determined by considering the application of high process temperature and the oating process dimmer liquid state. The yellow region corresponds to the PVA thickness with good uniformity used in this study.…”

“…The popular polyimide substrates with high glass transition temperatures had low transmittance in the visible range and high-cost, and thus, they are not the best choice for invisible and ultra-thin (imperceptible) electronics. 21,22 The glass substrates with PVA residues were further investigated by FT-IR (VERTEX 70). Nevertheless, the elevation of the process temperature above the transition temperature during device fabrication may induce strong solidication aer cooling due to the thermoplastic property.…”