Yıldız, Reşit
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Prof. Dr.
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ryildiz80@gmail.com, resityildiz@artuklu.edu.tr
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Department of Nutrition and Dietetics/ Beslenme ve Diyetetik Bölümü
Department of Nutrition and Dietetics/ Beslenme ve Diyetetik Bölümü
Department of Nutrition and Dietetics/ Beslenme ve Diyetetik Bölümü
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3
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5
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1
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7
AFFORDABLE AND CLEAN ENERGY
7
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16
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1
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29
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1017
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28
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905
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45
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33
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316/6000
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3
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366
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400
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13
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13
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| Journal | Count |
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| International Journal of Hydrogen Energy | 3 |
| BMC Chemistry | 2 |
| Artuklu İnsan ve Toplum Bilim Dergisi | 1 |
| İnsan ve Toplum Bilimleri Araştırmaları Dergisi | 1 |
| international Confererence on Condensed Matter and Materials Science | 1 |
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Now showing 1 - 10 of 45
Article Sodyum Dietil Ditiyokarbamat Trihidratin İnhibitör Olarak Asidik Ortamda Yumuşak Çelik Korozyonuna Elektrokimyasal Davranışının İncelenmesi(Technological Applied Sciences, 2017) Sarı, Ayşen; Yıldız, Reşit; Dehri, İlyasInhibition performance of sodium diethyidithiocarbaminat trihydrat (SDDT) against corrosion on mild steel (MS) in 0.5M HCl solution investigated by potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and linear polarization resistance (LPR) methods. The inhibition efficiency increased with increasing of inhibitor concentration. The potentiodynamic polarization results indicated that all the studied inhibitors act as mixed type. SDDT adsorption on the MS surface obeyed the isotherm of Langmuir and the thermodynamic parameters; Kads, ΔG○ads were also calculated and discussed.Presentation 0.5 M HCL çözeltisi içerisinde yumuşak çelik yüzeyine 4,6-diamino-2-Hydroxy-1,3,5-Triazın’in adsorpsiyonu ve antikorozyon davranışı(2018) Yıldız, Reşit; Doğru Mert, Başak; Dehri, İlyas; Yazıcı, Birgül: 0,5 M HCl çözelti içerisinde yumuşak çeliğin (YÇ) korozyon davranışı üzerine 4,6-diamino-2-hydroxy-1,3,5-triazine’in (DHT) etkisi lineer polarizasyon, potansiyodinamik polarizasyon ve elektrokimyasal impedans spektroskopisi yöntemleri ile araştırılmıştır. Polarizasyon eğrileri, incelenen molekülün karma inhibitör olarak davrandığını göstermiştir. YÇ nin yüzey morfolojisi inhibitörlü ve inhibitörsüz ortamda 1 saat sonunda taramalı elektron mikroskopi (SEM) ile incelenmiştir. DHT, YÇ’nin 0.5 M HCl'deki korozyonunu iyi bir şekilde inhibe etmiştir ve DHT konsantrasyonu arttıkça inhibisyon etkinliğide artmıştır.Article Citation - WoS: 26Citation - Scopus: 281-(2-Hydroxyethyl)-2-imidazolidinone as corrosion inhibitor of mild steel in 0.5 M HCl solution: thermodynamic, electrochemical and theoretical studies(Journal of Adhesion Science and Technology, 2019) Keleşoğlu, Ayşen; Yıldız, Reşit; Dehri, İlyasThe inhibition effect of 1-(2-Hydroxyethyl)-2-imidazolidinone (2-HEI) on mild steel (MS) corrosion in 0.5M HCl solution was investigated at different inhibitor concentration and temperature by electrochemical experiments, such as linear polarization resistance (LPR), electrochemical impedance spectroscopy (EIS), potentiodynamic polarization and quantum chemical calculations. The inhibitor adsorption process on mild steel in 0.5M HCl system was studied at different temperatures (20 C–50 C). Furthermore, the surface morphology of MS was also investigated with SEM in the absence and the presence of inhibitor. The adsorption of 1-(2-Hydroxyethyl)-2-imidazolidinone on MS surface is an exothermic process and this process obeys the Langmuir adsorption isotherm. The Quantum chemical findings are good agreed with the empirical data.Article Citation - WoS: 21Citation - Scopus: 19Inhibition Efficiency of Pyrazinecarboxylic Acid on Mild Steel in Acidic Environment(Taylor & Francis Ltd, 2021) Kelesoglu, Aysen; Sigircik, Gokmen; Yildiz, Resit; Dehri, IlyasPyrazinecarboxylic acid (PCA) was examined as a potential corrosion inhibitor for mild steel (MS) in 0.5 M HCl environment. The methods of electrochemical impedance spectroscopy (EIS), linear polarization resistance (LPR), as well potentiodynamic (PD) polarization were utilized. Furthermore, atomic force microscopy (AFM) and quantum chemical calculations were utilized. PD polarization curves demonstrated that PCA exhibited mixed inhibitor behavior. Scanning electron microscopy (SEM) offered the creation of an adsorptive layer on the surface of MS which prevented the steel against corrosive specimens. Furthermore, density functional theory (DFT) presented good agreement with electrochemical experimental results. The adsorption equilibrium constant (k(ads)) value was calculated to be 3.704 x 10(4) M-1 which was related to a high proportion of inhibitor on the surface. In the presence of 1.0 mM PCA, inhibition efficiency was determined as 95.2% from EIS results.Article Citation - WoS: 9Citation - Scopus: 10Green Synthesis of Silver Nanoparticles Derived from Papaver rhoeas L. Leaf Extract: Cytotoxic and Antimicrobial Properties(MDPI, 2023) İpek, Polat; Yıldız, Reşit; Baran, Mehmet Fırat; Hatipoğlu, Abdülkerim; Baran, Ayşe; Sufianov, Albert; Beylerli, OzalIn the last few decades, the search for metal nanoparticles as an alternative to cancer treatments and antibiotics has increased. In this article, the spectroscopic (ultraviolet-visible (UV-vis), electron-dispersing X-ray (EDX), and Fourier transform infrared (FT-IR)), microscopic (field emission scanning electron microscope (FE-SEM), transmission electron microscope (TEM), and atomic force microscope (AFM)), structural (X-ray diffractometer (XRD) and zetasizer), and analytic (thermogravimetric/differential thermal analyzer (TGA-DTA)) characterization of the silver nanoparticles (AgNPs) produced from Papaver rhoeas (PR) L. leaf extract are presented. PR-AgNPs are generally spherical and have a maximum surface plasmon resonance of 464.03 nm. The dimensions of the manufactured nanomaterial are in the range of 1.47-7.31 nm. PR-AgNPs have high thermal stability and a zeta potential of 36.1 mV. The minimum inhibitory concentration (MIC) values (mg L-1) of PR-AgNPs on Staphylococcus aureus, Escherichia coli, Bacillus subtilis, Pseudomonas aeruginosa, and Candida albicans are 1.50, 0.75, 3.00, 6.00, and 0.37, respectively. In the study, the cytotoxic and proliferative effects of PR-AgNPs using the MTT (3-(4,5-dimethylthiazol-2-yl)-diphenyltetrazolium bromide) method on various cancer cell lines (CACO-2 (human colon adenocarcinoma cell), MCF-7 (human breast cancer cell), T98-G (glioblastoma multiforme cell), and healthy HUVEC (human umbilical vein endothelial cell)) cell lines are presented. After 24 and 48 h of the application, the half-maximum inhibitory concentration (IC50) values (mu g mL(-1)) of PR-AgNPs on HUVEC, CACO-2, MCF-7, and T98-G lines are 2.365 and 2.380; 2.526 and 2.521; 3.274 and 3.318; 3.472 and 3.526, respectively. Comprehensive in vivo research of PR-AgNPs is proposed to reveal their potential for usage in sectors such as nanomedicine and nanochemistry.Article Citation - WoS: 7Citation - Scopus: 8Trans-Chalcone Attenuate Arsenic-Induced Toxicity in 3t3 Embryonic Fibroblast Cells; An In Vitro And In Silico Study(Elsevier, 2024) Unsal, Velid; Yildiz, Resit; Cicek, Mustafa; Gungor, Meltem; Kurutas, Ergul BelgeThis study investigated the curative role of trans-chalcone, a flanovide, against arsenic toxicity using in vitro and computer-based analyses. MTT and LDH methods were used to assess the cytotoxicity and viability of cells, spectrophotometric methods to evaluate SOD, GSH-px, MDA and PC biomarkers, and ELISA method to evaluate TNF-a IL-1(3 levels. Bax, Bcl-2 levels and Caspase-3 activity were measured by qRT-PCR technique, while TUNEL staining was performed to detect DNA breaks and DAPI staining was performed to visualize nuclear changes. In addition, computer-based analyses of trans-chalcone and Dimercaprol molecules were analyzed using SwissADME, ADMETlab, DFT web tools. Trans-chalcone treatment rescued 3T3 embryonic fibroblast cells, reduced oxidative stress. Again, trans-chalcone treatment showed positive effects on TNF-alpha, IL-1(3 levels and apoptotic markers. In conclusion, trans-chalcone showed antioxidant, anti-inflammatory, and anti-apoptotic effects against cellular toxicity caused by arsenic, as well as DFT, ADMET, drug similarity, molecular docking profiles predicted trans-chalcone to be a promising ligand. This research, based on in vitro and in silico analyses, may be useful in the development of promising drug(s) to reduce toxicity.Article The Study of 2, 4-Diamino-6-methly-1, 3, 5-triazine on the Corrosion Inhibition of Mild Steel in The Hydrochloric Acid Medium: Integrated Theoretical and Experimental Investigations(Bingol University, 2023) Yıldız, ReşitThe aim of this study is the investigation of adsorption and corrosion behaviors of 2,4-Diamino-6-methly-1,3,5-triazine (2-DMT) on mild steel (MS) in 0.5 M HCI solution using many experimental and theoretical studies such as potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), linear polarization resistance (LPR), adsorption isotherm, potential of zero charge (PZC), scanning electron (SEM), atomic force microscopies (AFM) and quantum chemical calculations. The results showed that 2-DMT has an outstanding anti-corrosion performance of 94.6% at an optimum concentration of 10 mM and the MS surface, which was exposed to the inhibited solution at 298 K, does not contain pits, cracks or deformations. Values of icorr are found to be 0.51, 0.22, 0.098, 0.072 and 0.039 mA cm-2 for blank solution and each concentration of 2-DMT. Hydrogen volumes are 90 and 4.6 mL cm-2 for blank solution and the existence of 10.0 mM 2-DMT, respectively. The observed adsorption is much more consistent with Langmuir. The high performance is explained by the effective adsorbing of organic matter to the MS surface. HOMO, LUMO energies and the energy gap (∆E) are -7.1980, -1.9959 and 5.2021 eV, respectively. Accordingly, it is suggested that this organic compound can be used in the industrial acid cleaning procedure.Article Citation - WoS: 7Citation - Scopus: 9Evaluation of Extra Virgin Olive Oil Compounds Using Computational Methods: in Vitro, Admet, Dft, Molecular Docking and Human Gene Network Analysis Study(Bmc, 2025) Unsal, Velid; Yildiz, Resit; Korkmaz, Aziz; Mert, Basak Dogru; Caliskan, Cemile Gunbegi; Oner, ErkanThis study investigates the phenolic compounds (PC), volatile compounds (VC), and fatty acids (FA) of extra virgin olive oil (EVOO) derived from the Turkish olive variety "Sar & imath; Ulak", along with ADMET, DFT, molecular docking, and gene network analyses of significant molecules identified within the EVOO. Chromatographic methods (GC-FID, HPLC) were employed to characterize FA, PC, and VC profiles, while quality parameters, antioxidant activities (TAC, ABTS, DPPH) were assessed via spectrophotometry. The analysis revealed a complex composition of 40 volatile compounds, with estragole, 7-hydroxyheptene-1, and 3-methoxycinnamaldehyde as the primary components. Hydroxytyrosol, tyrosol, oleuropein, apigenin, ferulic acid, and vanillic acid emerged as main phenolic constituents, with hydroxytyrosol and apigenin exhibiting high bioavailability. Molecular docking highlighted oleuropein and pinoresinol as compounds with strong binding affinities, though only hydroxytyrosol, apigenin, and pinoresinol fully met Lipinski and other drug-likeness criteria. DFT analysis showed that oleuropein and pinoresinol have notable dipole moments, reflecting polar and asymmetrical structures. KEGG enrichment analysis further linked key molecules like oleuropein and apigenin with pathways related to lipid metabolism and atherosclerosis, underscoring their potential bioactivity and relevance in health-related applications.Article Citation - WoS: 26Citation - Scopus: 29Protection of Mild Steel From Corrosion in Hcl Solution Via Green Rumex Acetosella Extract: Experimental and Theoretical Studies(Elsevier, 2024) Arslanhan, Selim; Sigircik, Gokmen; Yildiz, Resit; Baran, Mehmet FiratThe efficiency and potential of green Rumex acetosella extract (RAE) RAE ) on the inhibition of the mild steel (MS) corrosion were investigated in the acidic environment. The high inhibitive capability of RAE on the mild steel was studied by electrochemical impedance spectroscopy (EIS) and linear polarization resistance (LPR) techniques. In addition, potentiodynamic (PD) polarization measurements were carried out to examine corrosion mechanism. The achieved electrochemical tests showed that RAE has a significant inhibition effect on mild steel corrosion. The results of surface analysis recorded by scanning electron microscopy (SEM), and atomic force microscopy (AFM) depicted that RAE provide strong protective layer on the steel surface via adsorptive groups. The inhibition efficiency was calculated as 99.7 %, and 99.6 % from LPR and EIS after 120 h exposure time. Adsorption free energy ( Delta G oads ) value is found as-29.79 kJ mol-1,- 1 , indicating that both physical and chemical adsorptions occur. Furthermore, the obtained experimental findings were supported with quantum chemical calculation results.Article Adsorption and inhibition effect of 2,4-diamino-6-hydroxypyrimidine for mild steel corrosion in HCl medium: experimental and theoretical investigation, Ionics(Ionics, 2019) Yıldız, Reşit2,4-Diamino-6-hydroxypyrimidine (2D6H) was examined as corrosion inhibitor of mild steel (MS) in 0.1 M HCl using potentiodynamic measurements, linear polarization resistance (LPR), scanning electron microscopy, electrochemical experiments, and quantum chemical calculations. All measurements show that the corrosion inhibition effectiveness is forthright compared to the concentration of 2D6H ranging from 0.5 to 10.0 mM. Adsorption of 2D6H on the MS surface in the presence of HCl is determined to obey Langmuir adsorption isotherm. The electronic features elucidated by quantum chemical calculations were associated with the experimental inhibition productivities. The mechanism of inhibition was revealed by Epzc measurements.
