Development of electrospun-based polyetherimide fibers and diameter analysis for potential use in dental materials

Abstract

Objetives: this study aimed to fabricate electrospun-based polyetherimide (PEI) fibers, under controlled parameters, and to perform a diameter analysis for potential mechanical improvement of dental materials. Material and Methods: PEI pallets (0.75 g) were dissolved in 2 mL of chloroform and then processed by electrospinning, under a flow rate of 1mLh1 , three different electrical voltages (10kV, 15kV and 20kV) and three distances (10 cm, 15 cm and 18 cm) between the needle tip and collector. These parameter combinations resulted in nine experimental groups that were analyzed using scanning electron microscopy (SEM) and image processing program for diameter measurement. Statistical analysis was performed using two-way ANOVA with post-hoc Tukey (5% significance). Results: from SEM images it was possible to observe formation of solid, misaligned and flawless defect-free fibers. And from the statistical analysis, distance (p = 0,0026) and the electric tension (p = 0,0012) showed a significant difference, but not for interaction between then (p = 0,4486). Conclusion: thus, it can be concluded that there is a possibility of the morphology control of PEI electrospun fibers, such as diameter, that can be used for a variety of applications such as incorporation in dental materials in order to improve its properties. Keywords Electrospinning technique; Fibers; Polyetherimide; Polymer.

Recent Advances in Designing Fibrous Biomaterials for the Domain of Biomedical, Clinical, and Environmental Applications

“…150 Poly(ether imide) fibers were fabricated and the properties and potential mechanical improvements for their application in dental materials were analyzed. 151 The aforementioned mechanical properties were also studied for dental applications by using zirconia and alumina nanofibers. 152 Similarly, bioceramic nanoparticle-embedded nanofibers have been used for dental regeneration due to their nanostructures, flexibility, and cell homing behavior.…”

“…For instance, flexural strength/modulus, depth of cure, degree of conversion, and polymerization shrinkage of the composite nanofiber were compared to those of traditional hybrid composites, and improved properties were observed . Poly­(ether imide) fibers were fabricated and the properties and potential mechanical improvements for their application in dental materials were analyzed . The aforementioned mechanical properties were also studied for dental applications by using zirconia and alumina nanofibers .…”