Aqueous electrospun core/shell nanofibers of PVA/microbial transglutaminase cross-linked gelatin composite scaffolds

Gelatin/β–Cyclodextrin Bio–Nanofibers as respiratory filter media for filtration of aerosols and volatile organic compounds at low air resistance

“…4 a) displays characteristic peaks at 3290 cm − ¹, 1646 cm − ¹ 1537 cm − ¹ and 1233 cm − ¹, corresponding to a hydroxyl group (−OH), Amide A, Amide I, Amide II and Amide III, respectively ( Irfanita et al, 2017 ; Derkach et al, 2019 ). Amide A refers to gelatin specific N—H stretching ( Sengor et al, 2020 ). Amide-I is associated with C=O stretching, Amide II is due to C—N stretch and Amide III is related to in-plane N—H deformation ( Biswal et al, 2019 ).…”

Core-Shell Nanofibers Based on Polycaprolactone/Polyvinyl Alcohol and Polycaprolactone/Collagen for Biomedical Applications

“…2C-1) were formed. As the voltage increased, the diameter of the inner and outer nanofibers decreased [18]. Also, it was observed that in higher voltages, the continuity of the fibers decreased which caused increasing the nanofibers' instabilities.…”

“…The cone loses its shape because of the mixing of internal and external fluids. Therefore, to achieve a continuous and uniform core within the shell, the output rate of the core solution must be lower than that of the shell solution [16][17][18][19]. Nanofibers were produced at three core-shell flow rate ratios of 1:1, 1:3, and 1:5.…”

“…The viscosity of the core and shell solutions is a key parameter in electrospinning [13,22]. An increase in the solution concentration (both or each of core and shell) leads to an increase in final fibers diameter [18][19][20]. Despite of some research results which imply the mixing of the core and shell solutions at the top of the Taylor cone, the effect of the miscibility of core and shell solution in the nozzle tip could be neglected [18,19].…”

Biomaterials-based strategies for in vitro neural models

“…Below a certain threshold concentration, beading defects start before the jet becomes a spray of individual beads at lower viscosities. 195 Set-up related basic parameters include voltage and the distance between the nozzle and the collector that determine the final electric field density within the flight distance. Higher electric field densities are associated with increased jet speed and thinner fibers but the instabilities that occur above a threshold cause jet splitting and significantly alter the final morphology.…”