Yazar "Agirgan, Ahmet Ozgur" seçeneğine göre listele

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    Öğe
    Development of Electrospun Fish Gelatin/Silver/Poly(lactic acid) Nanofibers
    (Kaunas Univ Tech, 2024) Cakir, Gizem U. L. U. S. O. Y.; Agirgan, Ahmet Ozgur; Bayramol, Derman V. A. T. A. N. S. E. V. E. R.
    In this work, the evaluation of fish scales (FS), which is an organic waste of the fishing industry and cannot be recycled, was studied. FS was cleaned and dried before being used as fish gelatin (FG) in the electrospinning process. A polymer solution of PLA was used as a carrier for FG and silver nanoparticles (Ag). The amount of PLA and Ag was kept constant for each electrospinning solution while FG was added in three different ratios (0.5 %, 1 % and 2 %). The electrospinning process was carried out at 0.5 mL/h feeding rate, 11 kV applied voltage and 10 cm collector distance. Obtained nanofibrous surfaces were characterized via X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX). The results confirmed porous fiber formation which has potential use in many fields, such as filtration, biomedical and healthcare applications.
  • [ X ]
    Öğe
    Inclusion complexes of ?-cyclodextrıne with Fe3O4@HA@Ag Part II: Their use in the production of PVP nanowebs
    (Inst Natl Cercetare-Dezvoltare Textile Pielarie-Bucuresti, 2023) Atav, Riza; Agirgan, Ahmet Ozgur; Yildiz, Aylin; Bayramol, Derman Vatansever; Erguenay, Ugur
    Humic acid is a material formed as a result of the degradation of animal and plant wastes, it cleans heavy metals which are industrial wastes that threaten both the environment and human health. In part I of this study, the Fe3O4@HA@Ag compound was synthesized, its inclusion complex with beta-cyclodextrin was prepared by using the kneading technique and obtained inclusion complexes were characterized. In this study, part II, nanowebs were formed from the inclusion of complex-containing polymer solution via the electrospinning method. The electrospinning solution consisted of beta-CD:Fe3O4@HA@Ag inclusion complexes at the rate of 5%, 7.5% and 10% by weight and the polyvinylpyrrolidone (PVP) polymer as the carrier. The obtained nanoweb material was characterized by instrumental methods such as SEM, FTIR, XRD, and TGA. The results obtained from FTIR, XRD and TGA revealed that beta-CD:Fe3O4@HA@Ag inclusion complexes containing nanowebs were successfully produced. The uniform fibre formation was detected from SEM images. The average fibre diameter of 5%, 7.5% and 10% beta-CD:Fe3O4@HA@Ag inclusion complex containing nanowebs were measured to be 612.5 nm, 610.8 nm and 431.2 nm, respectively.