Browsing by Author "Yildiz, Huseyin Bekir"

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Electrochemical Polymerization of a New Alkoxy-Bridged Dithieno (3,2-b:2',3 Pyrrole Derivative
(Tubitak Scientific & Technological Research Council Turkey, 2018) Kivrak, Arif; Yildiz, Huseyin Bekir; Gokyer, Selahattin; Bezgin Carbas, Buket
A novel alkoxy-bridged dithieno (3, 2-B:2',3'-D) pyrrole (DTP) derivative was synthesized and its corresponding polymer poly(1,2-bis(2-(4H-dithieno[3,2-b:2',3'-d]pyrrol-4-yl)ethoxy)ethane) (P(DTP-alkoxy-DTP)) was successfully obtained electrochemically. The effects of alkoxy bridge in the structure on the electrochemical and spectroelectro-chemical properties of the polymer were also investigated in detail. The results showed that the polymer film exhibits multielectrochromic behavior and a low band gap of 1.82 eV.
The Revealing of the Cyto-Genotoxic Properties (Allium and Mtt) and the Effect of Chicken Meat Quality of Characterized Zein-Eugenol Nanofibers
(Elsevier Sci Ltd, 2025) Ceylan, Zafer; Uzun, Orhan; Karaismailoglu, Mehmet Cengiz; Meral, Raciye; Yildiz, Huseyin Bekir
Electrospun zein-based eugenol nanofibers (ZEnF) with diameters (148.19-631.52 nm) were fabricated. Thermal degradation was found as <15 % until 300 degrees C while the nanofiber diffraction pattern presented three main peaks among the 5(o) and 45(o) positions. ZEnF was not only evaluated as non-toxic to cells but also possessed anticancer characteristics revealing with the MCF-7 cell line at 800 mu g/mL (reduction: 18.08 %) and 1600 mu g/mL (reduction: 41.64 %). Allium tests revealed that ZEnF did not have any adverse impact on the health status (chromosomes-DNA) of exposed organisms. Following the nanofiber coating for chicken meat parts (thigh and breast), it was observed up to 1.25 log CFU/g limitation in total viable bacteria counts (p < 0.05). The sensory score (difference: 3.64 in 10 points scoring on the 6th day of the cold storage) and odor score of chicken meat samples were found to be as higher than control samples (p < 0.05).