Boron and rare earth stabilized graphene (Gr) doped polyvinylidene fluoride (PVDF) nanofibers were synthesized by electro‐spinning method. The structural morphological properties of the characterized. behavior samples containing different amounts (0%, 0.1%, 0.3% 0.5%) Gr doping material such as boron (B) elements (REEs), found to be from each other. Scanning electron micrographs (SEM) exhibit that, addition into pure PVDF caused a marked decrease in diameters nanofibers. So much so that...

The incorporation of drugs into the dressings make these antimicrobial and help in control infection around wound. wound dressing materials based on PVA/PAA, ciprofloxacin HCl, aloe vera have been designed developed so that undergoes proper healing scar formation is minimal. These are produced using electrospinning method. characterized FT-IR, DSC, DTA, TGA, SEM techniques. tested for microbial activity tests drug release experiments. Controlled HCl observed.

Five samples were fabricated to obtain a diode with PVA interface, both and without graphene doping at different rates high rectification in the dark. The electrospinning method was employed apply doped undoped solutions, creating interlayers. Since 1 wt % graphene-doped interlayer outperformed other samples, main electrical photodetector characteristics of this structure investigated. parameters probed by TE, Norde, Cheung methods, (

This study focuses on the fabrication of poly(vinyl alcohol)/ pyrrolidone)-Iodine nanofibers via electrospinning. Electrospun fibers were characterized by FT-IR, DSC and SEM techniques. results indicated that thermal stability improved after addition chitosan poloxamer 188. images showed spongiform structure is much more compact fibrous in case added chitosan, with an average fiber diameter 374 nm, whereas 188 resulted a porous beaded composition, 489 nm.

Biocompatible polyvinyl alcohol/polyethylene glycol and alcohol/polypropylene copolymer mats were prepared by electrospinning. The composite fiber subjected to detailed physical analysis complemented scanning electron microscopy Fourier transformations infrared spectroscopy. Scanning images showed that the morphology diameters of fibers mainly affected types polymers their compositions. Microbial culture results among tested fibrous alcohol/50% polyethylene gave best in preventing cell...

Electrical and dielectric properties of Au/1% graphene (GP)+Ca 1.9 Pr 0.1 Co 4 O x doped poly(vinyl alcohol)/n-Si structures have been investigated using the admittance spectroscopy method in temperature voltage ranges 160–300 K –4 – 5 V, respectively. Experimental results show that both main electrical parameters, such as barrier height (Φ b ), depletion layer width (W d series resistance (R s ) structure, real imaginary parts constant (ε′, ε″) electric modulus (M′ M″), tanδ, AC...

Current transport mechanisms (CTMs) of Au/Ca3Co4Ga0.001Ox/n-Si/Au (MIS) type structures were investigated using current–voltage (I–V) characteristics in the temperature range 80–340 K. Semilogarithmic I–V plots show two linear regions corresponding to low (0.075–0.250 V) and moderate (0.27–0.70 biases, respectively. Zero-bias barrier height (ΦB0) was observed increase with temperature, whereas opposite behaviour for ideality factor (n). ΦB0 (n−1–1) vesus q/2kT versus n drawn get an evidence...

In this study, boron doped and undoped Bi 2 O 3 -Er nanocomposite fibers were produced via electrospinning technique. Obtained turned into ceramics calcination process. characterized by Fourier transform infrared, x-ray diffraction, scanning electron microscopy techniques. X-ray diffraction results show that ceramic consisted of face-centered cubic phase. However, orthorhombic Crystallite sizes the evaluated using Scherrer’s equation. calculated as 50 17 nm, respectively. The average fiber...

In this study nickel and boron doped sodium cobalt oxide NaCo2- x Ni B y O4 (0≤x≤0.3, 0≤y≤0.1) nanocrystalline thermoelectric ceramic powders were synthesized using electrospinning techniques then consolidated into bulk ceramics. The differences in the microstructure properties of samples as a result doping effect have been investigated. crystalline structures nanofibers characterized X-ray diffraction scanning electron microscopy BET Analysis before after calcination process at different...

Bee bread is a bee product obtained as result of fermentation pollen stored by honey bees in the cells honeycomb. Palynological analysis, chemical composition, antioxidant activity and its cytotoxic effect against human lung carcinoma (A549), prostate cancer (DU 145) neuroblastoma (SH-SY5Y) cell lines were investigated this study. 25 plant taxa identified with palynological analysis. Fatty acids, cyclic, aromatic, phenolic, terpenoid, diterpen metallic complex structures seen GC-MS results....