The immobilized enzyme on nanofibrous samples maintained more than 90% of its original activity even after 10 cycles reusing.

Abstract Research in the field of tissue engineering, especially heart is growing rapidly. Herein, morphological, chemical, mechanical and biological properties poly (caprolactone) (PCL)/poly (glycerol sebacate) (PGS) PCL/PGS/graphene nanofibrous scaffolds are investigated. Initially, PGS pre‐polymer synthesized characterized by nuclear magnetic resonance Fourier transform infrared spectroscopies. Then, order to use benefits PGS, this polymer mixed with PCL. Blending PCL resulted enhancement...

Abstract Cartilage is a connective tissue with slow healing rate due to lack in blood circulation and metabolism. Designing engineering scaffolds modified based on its specific features can assist natural regeneration process. In this study, the chitosan‐gelatin/single‐walled carbon nanotubes functionalized by COOH (SWNTs‐COOH) nanocomposite were fabricated through electrospinning. The effect of each component different duration cross‐linking assessed terms morphology, porosity, chemical...

Eugenol, as the major phenolic component of clove essential oil due to its desired properties in medical field, was loaded into polyacrylonitrile (PAN) nanofibers with various percentages.Our main purpose this study determine vitro antifungal activity eugenol on PAN against Candida albicans most common causative agent for candidiasis.Also, surface morphology and mechanical were studied by scanning electron microscope (SEM) a tensile tester, respectively. The average diameters pure found be...

Myocardial infarction (MI) is a prevalent cause of mortality worldwide. In this study, sandwich scaffold was prepared for MI therapy using two commonly used materials in the medical field, polyglycerol sebacate (PGS) and polycaprolactone (PCL), series interrelated steps. The PGS/PCL nanofibers were coated with conductive polymer, i.e., polypyrrole (PPy), then embedded into decellularized myocardium gel to form 3D scaffold. Different quantitative qualitative evaluation tests performed, their...

Poly(glycerol sebacate) (PGS) is an attractive polymer that has many applications in medical fields, especially tissue engineering. In this study, the influence of solvent system on electrospinnability, forming bead‐free nanofibers and morphology PGS was investigated discussed. Among different solvents, acidic as a benign used for electrospinning. The steps were follows: (a) Synthesis pre‐polymer analysis its chemical structure by Fourier‐transform infrared spectroscopy (FTIR); (b)...

Abstract In the present study, electrochemical polymerization was carried out to coat surface of electrospun polyurethane (PU) nanofibers with conductive electroactive polypyrrole (PPy) towards production Faradaic bending actuators. For this purpose, first coated a thin layer gold using physical vapor deposition (PVD). PPy then on prepared different consumed electric charges ranging from 0.5 5 C. The produced samples were characterized respect morphology, electrical properties, properties...

Herein, poly(caprolactone)/poly (glycerol sebacate) (PCL/PGS) fibrous structures incorporating hydroxyapatite (HA) and graphene oxide (GO) nanofillers were prepared through two procedures, including electrospinning simultaneous electrospinning/electrospray procedures. Accordingly, introducing into the method led to improving mechanical strength from 3.69 4.95 MPa. The electrospray caused improvement of amorphous regions (up 83.4%) increased degradation rate. Furthermore, filler-filled...

Abstract As a special structure and due to the unique properties of submicron‐scale fibers electrical conductivity, conductive nanofibers recently attracted further attention in various fields, especially tissue engineering. This study aimed coat poly (glycerol sebacate) (PGS) nanofiber/poly(caprolactone) (PCL) as widely used combination fields medicine with poly(pyrrole) (PPy) polymer, subsequently studying optimizing production process variables using response surface methodology (RSM)....

Abstract In this work, polyvinyl alcohol/nylon6 hybrid nanofiber yarns were produced to achieve good properties of each component. The influence the twist level in range 3000–14,666 tpm and take-up speed 2.5–8.5 cm/min on tensile was investigated. highest strength elongation at break achieved about 11,000 (8.13±0.72 cN/tex 72.44±7.64%) 6.5 (6.20±0.57 70.23±7.95%), respectively. Excessive values over these amounts caused a drastic decrement properties. This could be due loss arrangement yarn...

Electrochemical actuators made of conducting polymers are one the major types artificial muscles that have attracted much attention in recent years. However, these suffer from potential drop along length, which undermines their performance applications requiring longer muscles. This study is aimed at enhancing this type through overcoming length. implemented using copper electroplating and creating a full-length highly conductive nanofibrous layer. Polyurethane/copper/polypyrrole (PU/Cu/PPy)...

In this research, nanocomposite nanofibrous webs of poly(acrylic acid) (PAA)/multi‐walled carbon nanotubes (MWNTs) were obtained via electrospinning. The effect MWNTs concentration on the morphology and mechanical properties PAA/MWNTs nanofibers was investigated by changing content from 0 to 5 wt%. results showed that average diameter increased with increasing presence led enhancement properties. Also, revealed strength, modulus, elongation at break samples 3.22, 2.70, 4.27 fold,...

Herein, we fabricated poly (caprolactone)/Gelatin (PCL/Gel) nanofibrous scaffolds and graphene oxide (GO 0.3, 0.6 1% w/w) was incorporated into scaffolds. Morphological, structural, mechanical in vitro analyses of the samples were performed. The diameter PCL nanofibers increased by adding Gel GO, especially 1%w/w GO (210 ± 20 nm versus 482 104 nm). Mechanical properties hydrophilicity improved. All nontoxic most biocompatibility values obtained 91.71 0.1% 94.29 1.1%, which related to PCL/Gel...

In this study, we fabricated poly vinyl alcohol/polyamide 6 (PVA/PA6) hybrid nanofiber yarns and examined the influence of PA6 content on tensile properties yarns. The surface morphology was studied by scanning electron microscope (SEM). average diameters nanofibers in pure PVA were 83±12 nm 187±21 nm, respectively. results showed that strength descending for contents below 16.5 % ascending higher contents. Also, increasing ratio yarn, elongation at break decreased. Three various models...

Magnetic composite structures were fabricated by embedding iron oxide nanoparticles (Fe3O4) into polycaprolactone (PCL) nanofibers through an electrospinning process. The PCL incorporating 0.5 and 1 wt. % Fe3O4 electrospun with various yarn membrane architectures. SEM images of the fibers revealed diameter increment raising proportion. Additionally, elongation at break, in tandem ultimate strength was improved 63 67% Fe3O4, respectively. saturation magnetization results depended on number...