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The Diagnostic Value Of Hsp90? In Monitoring Treatment Responses In Lung Cancer, Min Wang, Zifeng Jiang, Rongyu Liu Jan 2022

The Diagnostic Value Of Hsp90? In Monitoring Treatment Responses In Lung Cancer, Min Wang, Zifeng Jiang, Rongyu Liu

Turkish Journal of Medical Sciences

No abstract provided.


Radiomics Analysis Of Uterine Tumors In 18f-Flourodeoxyglucose Positron Emission Tomography For Prediction Of Lymph Node Metastases In Endometrial Carcinoma, Çi̇ğdem Soydal, Bulut Varli, Mi̇ne Araz, Batuhan Bakirarar, Sali̇h Taşkin, Uğur Firat Ortaç Jan 2022

Radiomics Analysis Of Uterine Tumors In 18f-Flourodeoxyglucose Positron Emission Tomography For Prediction Of Lymph Node Metastases In Endometrial Carcinoma, Çi̇ğdem Soydal, Bulut Varli, Mi̇ne Araz, Batuhan Bakirarar, Sali̇h Taşkin, Uğur Firat Ortaç

Turkish Journal of Medical Sciences

No abstract provided.


Ten-Year Outcomes Of Patients Who Developed Persistent Azoospermia Following Chemotherapy Associated With Different Oncological Diagnoses: A Retrospective Cohort Study From A Different Perspective, Ahmet Salvarci, Ali̇ Sami̇ Gürbüz, Mehmet Balasar Jan 2022

Ten-Year Outcomes Of Patients Who Developed Persistent Azoospermia Following Chemotherapy Associated With Different Oncological Diagnoses: A Retrospective Cohort Study From A Different Perspective, Ahmet Salvarci, Ali̇ Sami̇ Gürbüz, Mehmet Balasar

Turkish Journal of Medical Sciences

No abstract provided.


Determination Of Mirna Expression Profile In Patients With Prostate Cancer And Benign Prostate Hyperplasia, Okan Sancer, Pinar Aslan Koşar, Muhammet Yusuf Tepebaşi, Osman Ergün, Murat Demi̇r, Ali̇m Koşar Jan 2022

Determination Of Mirna Expression Profile In Patients With Prostate Cancer And Benign Prostate Hyperplasia, Okan Sancer, Pinar Aslan Koşar, Muhammet Yusuf Tepebaşi, Osman Ergün, Murat Demi̇r, Ali̇m Koşar

Turkish Journal of Medical Sciences

No abstract provided.


Paraoxonase-1 And Fetuin-A Levels In Children With Cerebral Palsy, Özlem Unay Demi̇rel, Özlem Güngör, Seyda İğnak Tarliğ, Meral Yüksel Jan 2022

Paraoxonase-1 And Fetuin-A Levels In Children With Cerebral Palsy, Özlem Unay Demi̇rel, Özlem Güngör, Seyda İğnak Tarliğ, Meral Yüksel

Turkish Journal of Medical Sciences

No abstract provided.


Cyclotide-Rich Fractions Containing Nanofibers By Electrospinning: Preparation, Characterization And Examination Of Antimicrobial Activity, Eli̇f Büşra Baş, Cemi̇l Kürekci̇, Orhan Murat Kalfa, Muharrem Akcan Jan 2022

Cyclotide-Rich Fractions Containing Nanofibers By Electrospinning: Preparation, Characterization And Examination Of Antimicrobial Activity, Eli̇f Büşra Baş, Cemi̇l Kürekci̇, Orhan Murat Kalfa, Muharrem Akcan

Turkish Journal of Chemistry

In this study, antimicrobial nanofibers were produced with the mixtures of polyvinyl alcohol (PVA) and cyclotide-rich fractions by electrospinning method. After extraction, the first separation was carried out with C18 flash chromatography and then fractioned into five separate parts by reversed-phase high-pressure liquid chromatography (RP-HPLC). The molecular weights of cyclotides in each fraction were determined by quadrupole time-of-flight liquid chromatography-mass spectrometry (Q-TOF LC-MS). Cyclotide-rich fractions were mixed with 10% of PVA solution and nanofibers were produced from this biocomposite mixture by electrospinning method. The nanofibers were characterized by field emission scanning electron microscopy (FE-SEM), and it was observed that 100% …


A New Achillea (Asteraceae) Species From Southwestern Turkey, Gürkan Semi̇z, Tuna Uysal, Meryem Bozkurt, Batikan Günal Jan 2022

A New Achillea (Asteraceae) Species From Southwestern Turkey, Gürkan Semi̇z, Tuna Uysal, Meryem Bozkurt, Batikan Günal

Turkish Journal of Botany

Achillea alimeana Semiz & Uysal sp. nov. of sect. Santolinoidea DC. (Asteraceae), was described, diagnosed and illustrated as a new species. It was collected from Akdağ Mountains in Denizli Province. In this paper, the diagnostic characters of A. alimeana and its similar species were discussed in the morphological, palynological and molecular findings. As regards the new species, some notes on the ecology, conservation status, and distribution were submitted. A diagnostic key was given for related taxa.


On The Convergence And Stability Analysis Of Finite-Difference Methods For The Fractional Newell-Whitehead-Segel Equations, İnci̇ Çi̇li̇ngi̇r Süngü, Emre Aydin Jan 2022

On The Convergence And Stability Analysis Of Finite-Difference Methods For The Fractional Newell-Whitehead-Segel Equations, İnci̇ Çi̇li̇ngi̇r Süngü, Emre Aydin

Turkish Journal of Mathematics

In this study, standard and non-standard finite-difference methods are proposed for numerical solutions of the time-spatial fractional generalized Newell-Whitehead-Segel equations describing the dynamical behavior near the bifurcation point of the Rayleigh-Benard convection of binary fluid mixtures. The numerical solutions have been found for high values of $p$ which shows the degree of nonlinear terms in the equations. The stability and convergence conditions of the obtained difference schemes are determined for each value of $p$. Errors of methods for various values of $p$ are given in tables. The compatibility of exact solutions and numerical solutions and the effectiveness of the methods …


Existence Of Solutions For An Infinite System Of Tempered Fractional Order Boundary Value Problems In The Spaces Of Tempered Sequences, Khuddush Mahammad, Rajendra Prasad Kapula, Leela Doddi Jan 2022

Existence Of Solutions For An Infinite System Of Tempered Fractional Order Boundary Value Problems In The Spaces Of Tempered Sequences, Khuddush Mahammad, Rajendra Prasad Kapula, Leela Doddi

Turkish Journal of Mathematics

This paper deals with infinite system of nonlinear two-point tempered fractional order boundary value problems $$ \begin{aligned} {}^\mathtt{RL}_{~0}\mathbb{D}^{δ_2,\ell}_\mathtt{z}\Big[\mathtt{p}_\mathtt{j}(\mathtt{z})&{}^\mathtt{RL}_{~0}\mathbb{D}^{δ_1,\ell}_\mathtt{z} \vartheta_\mathtt{j}(\mathtt{z})\Big]=λ_\mathtt{j}\varphi\big(\mathtt{z},\vartheta(\mathtt{z})\big),\, \mathtt{z}\in[0,\mathtt{T}], δ_1,δ_2\in(1,2),\\ &\hskip0.25cm\vartheta_\mathtt{j}(0)=\lim_{\mathtt{z}\to0}\left[{}^\mathtt{RL}_{~0}\mathbb{D}^{δ_1,\ell}_\mathtt{z}(e^{\ell\mathtt{z}}\vartheta_\mathtt{j}(\mathtt{z}))\right]=0,\\ &e^{\ell\mathtt{T}}\vartheta_\mathtt{j}(\mathtt{T})=\lim_{\mathtt{z}\to\mathtt{T}}\left[{}^\mathtt{RL}_{~0}\mathbb{D}^{δ_1,\ell}_\mathtt{z}(e^{\ell\mathtt{z}}\vartheta_\mathtt{j}(\mathtt{z}))\right]=0, \end{aligned} $$ where $\mathtt{j}\in\{1,2,3,\cdot\cdot\cdot\},\,\ell\ge 0,$ ${}^\mathtt{RL}_{~0}\mathbb{D}^{\star,\ell}_\mathtt{z}$ denotes the Riemann--Liouville tempered fractional derivative of order $\star\in\{δ_1,δ_2\}$, $\vartheta(\mathtt{z})=\left(\vartheta_\mathtt{j}(\mathtt{z})\right)_{\mathtt{j}=1}^{\infty},$ $\varphi_\mathtt{j}:[0,\mathtt{T}]\to[0,\mathtt{T}]$ are continuous and we derive sufficient conditions for the existence of solutions to the system via the Hausdorff measure of noncompactness and Meir-Keeler fixed point theorem in tempered sequence spaces.


Two Nonzero Weak Solutions For A Quasilinear Kirchhoff Type Problem, Lin Li, Stepan Tersian Jan 2022

Two Nonzero Weak Solutions For A Quasilinear Kirchhoff Type Problem, Lin Li, Stepan Tersian

Turkish Journal of Mathematics

We study the existence of two nonzero solutions for a class of quasilinear Kirchhoff problems. The approach is based on the variational methods. Our nonlinerity is contrast to some previous results is that superlinear growth at infinity.


Elliptical Kinematics Of The Accretive Surface Growth, Zehra Özdemi̇r, Gül Güner Jan 2022

Elliptical Kinematics Of The Accretive Surface Growth, Zehra Özdemi̇r, Gül Güner

Turkish Journal of Mathematics

The stresses within the soft tissue are not constant for some shell surfaces. They vary with position along the mantle edge. In this paper, we show that elliptical geometry is more convenient to describe this type of surface. Thus, we introduce the elliptical kinematics along an initial curve and construct some accretive surfaces with an elliptical cross-section. In fact, these surfaces are not only curves with an elliptical cross-sectional curve, but also the material points of the surface follow an elliptical trajectory during their formation. This situation can be easily explained through elliptical motion and elliptical quaternion algebra. Then, we …


Study Of The $\Phi$-Generalized Type $K$-Fractional Integrals Or Derivatives And Some Of Their Properties, Mustafa Aydin, Nazim I. Mahmudov Jan 2022

Study Of The $\Phi$-Generalized Type $K$-Fractional Integrals Or Derivatives And Some Of Their Properties, Mustafa Aydin, Nazim I. Mahmudov

Turkish Journal of Mathematics

A novel fractional integral in the sense of Riemann-Liouville integral and two new fractional derivatives in the sense of Riemann-Liouville derivative and Caputo derivative with respect to another function and two parameters are introduced. Some significant properties of them are presented like semigroup property, inverse property, etc. The solution of the Cauchy-type problem for the nonhomogenous linear differential equation with the $\phi$-generalized Caputo $k$-fractional derivative is given by using the method of successive approximation.


On A Class Of Nonlocal Porous Medium Equations Of Kirchhoff Type, Uğur Sert Jan 2022

On A Class Of Nonlocal Porous Medium Equations Of Kirchhoff Type, Uğur Sert

Turkish Journal of Mathematics

We study the Dirichlet problem for the degenerate parabolic equation of the Kirchhoff type \[ u_{t}-a\left(\ u\ _{L^{p}(\Omega)}^{p}\right)\sum\limits_{i=1}^{n}D_{i}\left( \left\vert u\right\vert ^{p-2}D_{i}u\right) +b\left( x,t,u\right)=f\left( x,t\right) \quad \text{in $Q_T=\Omega \times (0,T)$}, \] where $p\geq2$, $T>0$, $\Omega \subset \mathbb{R}^{n}$, $n\geq 2$, is a smooth bounded domain. The coefficient $a(\cdot)$ is real-valued function defined on $\mathbb{R}_+$ and $b(\cdot,\cdot,\tau)$ is a measurable function with variable nonlinearity in $\tau$. We prove existence of weak solutions of the considered problem under appropriate and general conditions on $a$ and $b$. Sufficient conditions for uniqueness are found and in the case $f\equiv0$ the decay rates for $\ u\ …


Investigation Of Hazelnut Shells Driven Hard Carbons As Anode For Sodium-Ion Batteriesproduced By Hydrothermal Carbonization Method, Eli̇f Canbaz, Meral Aydin, Rezan Demi̇r Çakan Jan 2022

Investigation Of Hazelnut Shells Driven Hard Carbons As Anode For Sodium-Ion Batteriesproduced By Hydrothermal Carbonization Method, Eli̇f Canbaz, Meral Aydin, Rezan Demi̇r Çakan

Turkish Journal of Chemistry

To be used as Na-ion battery anodes, hard carbon electrodes are synthesized from biomass, explicitly hazelnut shell (HS): via hydrothermal carbonization (HTC) followed by further pyrolysis at different temperatures (500, 750, 1000 °C). Then, the resulting hazelnut shell-based hard carbons are investigated using various methods including Fourier-transform infrared spectroscopy, scanning electron microscope, X-ray diffraction, galvanostatic charge/discharge, and electrochemical impedance spectroscopy. The effects of binders (PVdF, Na-alginate, CMC, and PAA) on electrochemical performance are determined. The obtained composite electrodes with different binders are tested in sodium half-cell configurations. A strong correlation is recognized between carbonization temperature and electrochemical performances and structural …


Comparison Of Volatile Chemical Components Of Cystoseira Crinita Duby By Hydrodistillation(Hd) And Solid-Phase Microextraction (Spme) Methods And Antimicrobialand Scolicidal Activities Of Essential Oil And Extracts, Tayyi̇be Beyza Yücel Jan 2022

Comparison Of Volatile Chemical Components Of Cystoseira Crinita Duby By Hydrodistillation(Hd) And Solid-Phase Microextraction (Spme) Methods And Antimicrobialand Scolicidal Activities Of Essential Oil And Extracts, Tayyi̇be Beyza Yücel

Turkish Journal of Chemistry

This study aims to derive an essential oil from Cystoseira crinita Duby, analyze the chemical composition of the essential oil, discover the antimicrobial activities of the oil and the extracts, and investigate the scolicidal activities of the extracts. The volatile organic compounds of Cystoseira crinita Duby were determined by GC/MS-FID using both hydro-distillation (HD) and solid-phase microextraction (SPME) methods. As a result of the essential oil analysis, 97.14% of 17 compounds and 93.13% of 19 compounds were elucidated. The main compounds identified were hexanal (31.802%), n-hexadecanoic acid (12.654%), trans-β-ionone (9.118%), 2E-hexenal (15.955%), heptadecane (15.729%) and tetradecane (13.458%). In addition, hexane, …


New Bis-Isoxazole With Monoterpenic Skeleton: Regioselective Synthesis, Spectroscopicinvestigation, Electrochemical, And Density Functional Theory (Dft) Studies, Ali Oubella, Meryem Hrimla, Mouhi Eddine Hachim, Mourad Fawzi, Abdoullah Bimoussa, Lahoucine Bahsis, Aziz Boutouil, Aziz Auhmani, Abdelkhalek Riahi, My Youssef Ait Itto Jan 2022

New Bis-Isoxazole With Monoterpenic Skeleton: Regioselective Synthesis, Spectroscopicinvestigation, Electrochemical, And Density Functional Theory (Dft) Studies, Ali Oubella, Meryem Hrimla, Mouhi Eddine Hachim, Mourad Fawzi, Abdoullah Bimoussa, Lahoucine Bahsis, Aziz Boutouil, Aziz Auhmani, Abdelkhalek Riahi, My Youssef Ait Itto

Turkish Journal of Chemistry

A novel bis-isoxazole was synthesized from (R)-Carvone and p-methylbenzaldoxime, via two successive [3+2] cycloaddition reactions (32CA). The newly obtained bis-isoxazole has been fully characterized by HRMS and NMR spectroscopy. The HMBC experiment was performed to determine the stereo and the regioselectivity of the reaction. The electrochemical behavior of the studied compound, in oxidation and reduction processes, was examined using the cyclic voltammetry technique. In addition, the regioselectivity of the [3+2] cycloaddition reaction and the molecular structure of the title compound was performed by density functional theory (DFT). The HOMO and LUMO orbitals were investigated to determine the electronic properties of …


Determination Of Triacylglycerol And Fatty Acid Compositions Of Impatiens Seed Oils Using Reverse Phase High Performance Liquid Chromatography, Anh Van Nguyen, Anh Thi Ngoc Vu, Victor Ivanovic Deineka, Huy-Trung-Kien Nguyen Jan 2022

Determination Of Triacylglycerol And Fatty Acid Compositions Of Impatiens Seed Oils Using Reverse Phase High Performance Liquid Chromatography, Anh Van Nguyen, Anh Thi Ngoc Vu, Victor Ivanovic Deineka, Huy-Trung-Kien Nguyen

Turkish Journal of Chemistry

In the present work, triacylglycerol and fatty acid compositions of Impatiens balsamina L. and Impatiens walleriana Hook.f. seed oils were determined using reverse phase high performance liquid chromatography with both refractive index and spectrophotometric detections. The presence of conjugated octadecatetraenoic moieties was confirmed by UV and IR spectroscopy. Triacylglycerol (TAG) compositions were performed using an incremental approach and confirmed by the results of MS and electronic spectra. The quantitative analysis of TAG was achieved by careful calibration, introducing correction factors for the sensitivity of each compound. The results showed that both Impatiens seed oils contain the same 23 TAGs. The …


Insight Into Electrochemical Degradation Of Cartap (In Padan 95sp) By Boron-Doped Diamond Electrode: Kinetic And Effect Of Water Matrices, Hoang Nguyen Jan 2022

Insight Into Electrochemical Degradation Of Cartap (In Padan 95sp) By Boron-Doped Diamond Electrode: Kinetic And Effect Of Water Matrices, Hoang Nguyen

Turkish Journal of Chemistry

In this work, the kinetic electrochemical degradation of Cartap (CT) (in Padan 95 SP) at boron-doped diamond (BDD) electrode was investigated. This study indicated that the degradation of CT underwent both direct and indirect oxidations. Water matrices can either accelerate or inhibit the removal efficiency of CT: adding 15 mM Cl- improved kCT from 0.039 min-1 to 0.054 min-1 (increased by 38%), while kCT decreased by 61.5% and 64% when increasing the concentration of HCO3- and humic acid (HA) to 15 mM and 15 mg L-1, respectively. CT degradation was inhibited …


The Effect Of Fuel On The Physiochemical Properties Of Znfe2o4 Synthesized By Solution Combustion Method, Fahma Riyanti, Widia Purwaningrum, Nova Yuliasari, Sasmita Putri, Nabila Aprianti, Poedji Loekitowati Hariani Jan 2022

The Effect Of Fuel On The Physiochemical Properties Of Znfe2o4 Synthesized By Solution Combustion Method, Fahma Riyanti, Widia Purwaningrum, Nova Yuliasari, Sasmita Putri, Nabila Aprianti, Poedji Loekitowati Hariani

Turkish Journal of Chemistry

The synthesis of ZnFe2O4 nanoparticles was performed using the solution combustion method with three types of fuel, namely urea, glycine, and ethylenediamine tetra-acetic acid (EDTA) with precursors (Zn(NO3)2.6H2O and Fe(NO3)3.9H2O. The combustion process was conducted in an open space at 300 °C for ± 1 h, resulting in a brownish-black ZnFe2O4. Meanwhile, the fuel type used in the process affects the physicochemical properties of ZnFe2O4. XRD analysis showed that ZnFe2O4 synthesized using urea, glycine, …


Comparisons Of Biochemical Compositions In Marsh Frog (Pelophylax Ridibundus)(Anura; Ranidae) Grown In Different Conditions; Wild, Semicultured And Cultured Ones, Emrah Şi̇mşek, Ahmet Alkaya, Hülya Şerefli̇şan, Ayşe Özyilmaz Jan 2022

Comparisons Of Biochemical Compositions In Marsh Frog (Pelophylax Ridibundus)(Anura; Ranidae) Grown In Different Conditions; Wild, Semicultured And Cultured Ones, Emrah Şi̇mşek, Ahmet Alkaya, Hülya Şerefli̇şan, Ayşe Özyilmaz

Turkish Journal of Zoology

Frogs can be added to a list of different raw materials which have sustainable economic value to their producers. Therefore, the biochemical attributes of the frogs require further scientific scrutiny. The major objective of the current study is to investigate some biochemical compositions of edible portions of Pelophylax ridibundus (Pallas, 1771) grown in different conditions. The wild frogs, semicultured frogs, and cultured frogs were investigated regarding female and male specimens, leading to six groups that were determined to investigate the biochemical features of frogs. The results show that they (all frogs in all six groups) have low lipid contents (p < 0.05). The protein contents of the frogs varied in the range of 10.54%-16.10%. The lowest ash contents were found in semicultured male and female frogs. The average moisture contents were roughly 80% for all specimens. The major fatty acids were C16:0, C18:0, C18:1n9, C18:2n6, and C20:4n6 for wild, semicultured, and cultured frogs, respectively, for both sexes, showing their respective amounts varied among groups. All in all, the results show that there exist some differences in the nutritional content of frogs grown in different


Mthfr C677t Mutation Affects Adipogenic Differentiation Abilities Of Human Bone Marrow-Derived Mesenchymal Stem Cells, Rengi̇m Vural, Di̇cle Çeli̇k, Ersi̇n Berkay Peker, Eki̇n Köni̇, Ayşe Aydanur Kulaç, Zeynep Tokcaer Keski̇n Jan 2022

Mthfr C677t Mutation Affects Adipogenic Differentiation Abilities Of Human Bone Marrow-Derived Mesenchymal Stem Cells, Rengi̇m Vural, Di̇cle Çeli̇k, Ersi̇n Berkay Peker, Eki̇n Köni̇, Ayşe Aydanur Kulaç, Zeynep Tokcaer Keski̇n

Turkish Journal of Biology

The effects of 5,10-Methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism on human bone marrow-derived mesenchymal stem cells (hBM-MSCs) viability, morphology, physiology and differentiation capacity were investigated in this study. For this purpose, primary hBM-MSCs with wild type (WT, C/C), heterozygote (HTZ, C/T) and homozygote (HMZ, T/T) for the MTHFR gene were obtained with ethical committee permission and donor informed. Mutations were detected using RFLP and Sanger sequencing methods from genomic DNA isolated from cells, colonization properties were investigated by CFU-F test and proliferative differences were investigated by MTT test. Adipogenic, osteogenic, and chondrogenic differentiation were induced to study changes in their differentiation …


Comparison Of The Different Isoforms Of Vitamin E Against Amyloid Beta-Induced Neurodegeneration, Alp Yi̇ği̇t Özdemi̇r, Esi̇n Çeti̇n, Mehmet Ali̇ Onur Jan 2022

Comparison Of The Different Isoforms Of Vitamin E Against Amyloid Beta-Induced Neurodegeneration, Alp Yi̇ği̇t Özdemi̇r, Esi̇n Çeti̇n, Mehmet Ali̇ Onur

Turkish Journal of Biology

Neurodegeneration is the progressive loss of structure or function of neurons. Amyloid beta oligomers and aggregates have been linked to neurodegeneration. While previous studies have suggested that dietary α-tocopherol intake can prevent amyloid beta aggregation and protect the brain against neurotoxicity, other research, however, indicated that tocotrienol forms might be used as an alternate agent against this kind of degeneration. In the presented research, we compared the in vitro protective effects of α-tocopherol and α-tocotrienol. In this context, we formed an in vitro neurodegeneration model with primary isolated neurons and measured α-tocopherol's and α-tocotrienol's protective effects. As a result, α-tocopherol …


The Investigation Of Diverse Physiological And Therapeutic Impact Of Cellular-Based Products Derived From Human Cumulus Cells, Derya Burukçu, Sema Yilmaz, Oya Alagöz, Cumhur Kaan Yaltirik, Neci̇p Erkut Attar, Fi̇kretti̇n Şahi̇n, Esra Aydemi̇r Çoban Jan 2022

The Investigation Of Diverse Physiological And Therapeutic Impact Of Cellular-Based Products Derived From Human Cumulus Cells, Derya Burukçu, Sema Yilmaz, Oya Alagöz, Cumhur Kaan Yaltirik, Neci̇p Erkut Attar, Fi̇kretti̇n Şahi̇n, Esra Aydemi̇r Çoban

Turkish Journal of Biology

Particular somatic cells, namely cumulus cells (CCs) that support the oocyte maturation, fertility, and viability by providing the nutrients and energy to the oocyte envelop the mammalian oocyte. In this study, discarded human cumulus tissues were used to reveal the value of hyaluronic acid-rich CCs on several cellular events, including differentiation. Conditioned media, recovered from the primary culture of CCs, were introduced to the human nucleus pulposus cells (hNPCs) which were functionally distorted because of the loss of chondrogenecity. Enlightening the impact of cumulus conditioned media (CCM) on wound healing and angiogenesis was also investigated. In line with these goals, …


Cover And Contents Jan 2022

Cover And Contents

Turkish Journal of Biology

No abstract provided.


The Study On Biological Activities Of Silver Nanoparticles Produced Via Green Synthesis Method Using Salvia Officinalis And Thymus Vulgaris, Ömer Ödemi̇ş, Sadi̇n Özdemi̇r, Serpi̇l Gonca, Ali̇ Arslantaş, Mehmet Sali̇h Ağirtaş Jan 2022

The Study On Biological Activities Of Silver Nanoparticles Produced Via Green Synthesis Method Using Salvia Officinalis And Thymus Vulgaris, Ömer Ödemi̇ş, Sadi̇n Özdemi̇r, Serpi̇l Gonca, Ali̇ Arslantaş, Mehmet Sali̇h Ağirtaş

Turkish Journal of Chemistry

In the present study, Ag nanoparticles (AgNPs) were synthesized from Salvia officinalis and Thymus vulgaris, known as phytotherapy plants. The obtained silver nanoparticles were characterized using SEM, XRD, FTIR, and UV/Vis spectra. The antioxidant capacities of Salvia officinalis-mediated AgNP (SO-AgNP) and Thymus vulgaris-mediated AgNP (TV-AgNP) were analyzed in vitro using 1,1-diphenyl-2-picrylhydrazyl and iron chelating activity assays. DPPH activities were 83.74% and 57.17% for SO-AgNP and TV-AgNP at concentration 200 mg/L, respectively. Both green synthesized AgNPs exhibited good iron chelating activity. In addition, the DNA cleavage activities of SO-AgNPs and TV-AgNP were investigated with agarose gel electrophoresis technique. …


Amin-Modified Graphene Oxide As A Promising Adsorbent For Selective Extraction Of Dexamethasone Adulterant From Herbal Supplements, Mahboob Nemati, Ali Zayer, Samin Hamidi Jan 2022

Amin-Modified Graphene Oxide As A Promising Adsorbent For Selective Extraction Of Dexamethasone Adulterant From Herbal Supplements, Mahboob Nemati, Ali Zayer, Samin Hamidi

Turkish Journal of Chemistry

In most cases, herbal supplements found in illegal centers and herbal medicine stores have harmful content that causes irreparable damage to people. As a representative of the green chemistry method, a rapid and efficient dispersive micro solid-phase extraction (D-mSPE) method was applied to extract dexamethasone adulterant from handmade supplements sold as power natural enhancing materials. The quantification of the analyte was performed by high performance liquid chromatography with an ultraviolet detector. Effective parameters on the extraction recovery, including the type and amount of adsorbent, the kind of elution solvent, and the time of extraction and elution, were systematically investigated. The …


Chromatographic Profile Of Major Whey Proteins In Some Dairy Beverages Based On Milk Serum, Doina Prodan, Miuta Filip, Mihaela Vlassa, Marioara Moldovan, Rahela Carpa Jan 2022

Chromatographic Profile Of Major Whey Proteins In Some Dairy Beverages Based On Milk Serum, Doina Prodan, Miuta Filip, Mihaela Vlassa, Marioara Moldovan, Rahela Carpa

Turkish Journal of Chemistry

The aim of this study was the determination of chromatographic profiles of major whey proteins (WP): α-lactalbumin (α-La), β-lactoglobulin A and B, (β-Lg A and B), bovine serum albumin (BSA) in dairy beverages based on Zonar milk serum. The studied WP were separated by high-performance liquid chromatography (HPLC) on Aeris XB-C18 column using gradient elution with 0.1% trifluoroacetic acid (TFA) in water and 0.1% TFA in 80% acetonitrile, at 214 nm detection. The HPLC method was validated for system suitability, selectivity/specificity, linearity (R2 ≥ 0.996), precision (RSD% ≤ 2.01), trueness (recovery 96.29%-102.08%), sensitivity (limits of quantification (LOQ) 1.35-10.08 μg/mL), …


Encapsulation Of Halocadmate Anion Via Hydrogen Bonding: Synthesis And Characterization Of Bis(Diethylenetriamine)Cobalt(Iii) Complex Containing Hexabromocadmate Anion, Vinit Prakash, Ritu Bala, Amrinder Kaur, Daron E. Janzen Jan 2022

Encapsulation Of Halocadmate Anion Via Hydrogen Bonding: Synthesis And Characterization Of Bis(Diethylenetriamine)Cobalt(Iii) Complex Containing Hexabromocadmate Anion, Vinit Prakash, Ritu Bala, Amrinder Kaur, Daron E. Janzen

Turkish Journal of Chemistry

In this work, the encapsulation of [CdBr6]4- by six cations, [Co(dien)2]3+ has been described with the help of single crystal X-ray structural study in the complex, mer-[Co(dien)2]2[CdBr6]Br2. The complex anion, [CdBr6]4- has been obtained through solution method while attempting to synthesize complex dianion, [CdBr4]2-. This newly synthesized complex has been initially characterized by elemental analyses and spectroscopic studies (IR, NMR and UV-Visible). IR and NMR studies have been used for the isomeric identification of [Co(dien)2]3+ …


Degradation Of Dye Containing In Textile Wastewater By Sequential Process: Photocatalytic And Biological Treatment, Jose Carlos Mendoza Hernandez, Gabriela Perez Osorio, Jose Eligio Moises Gutierrez Arias, Josefina Castañeda Camacho Jan 2022

Degradation Of Dye Containing In Textile Wastewater By Sequential Process: Photocatalytic And Biological Treatment, Jose Carlos Mendoza Hernandez, Gabriela Perez Osorio, Jose Eligio Moises Gutierrez Arias, Josefina Castañeda Camacho

Turkish Journal of Chemistry

In this research, a combined photocatalytic and biological treatment is proposed for the elimination of pollutants present in textile wastewater using a natural erionite zeolite (PE) and aluminum oxide (PA) synthesized by the sol-gel method as photocatalysts, and solar radiation. Both catalysts were characterized by XRD, SEM, and EDS. For biological treatment two bacterial consortium were used: BC1 (Escherichia coli N16, Serratia k120, Pseudomonas putida B03 and Enterobacter hormaechei), and consortium BC2 (Escherichia coli N16, Serratia Mc107, Enterobacter N9, Enterobacter hormaechei Mc9). The photocatalytic and microbiological treatments were carried out initially separately and subsequently in a …


Synthesis, Molecular Modeling, And Biological Evaluation Of Novel Imatinib Derivatives Asanticancer Agents, Fulya Günay, Sevcan Balta, Yuk Yin Ng, Özlem Ulucan Açan, Zühal Turgut, Ömer Tahi̇r Günkara Jan 2022

Synthesis, Molecular Modeling, And Biological Evaluation Of Novel Imatinib Derivatives Asanticancer Agents, Fulya Günay, Sevcan Balta, Yuk Yin Ng, Özlem Ulucan Açan, Zühal Turgut, Ömer Tahi̇r Günkara

Turkish Journal of Chemistry

Different derivatives of imatinib were synthesized by a 3-step reaction method. The structures of the new compounds were characterized by spectroscopic methods. For quantitative evaluation of the biological activity of the compounds, MTT assays were performed, where four BCR-ABL negative leukemic cell lines (Jurkat, Reh, Nalm-6 and Molt-4), one BCR-ABL positive cell line (K562), and one non-leukemic cell line (Hek293T) were incubated with various concentrations of the derivatives. Although imatinib was specifically designed for the BCR-ABL protein, our results showed that it was also effective on BCR-ABL negative cell lines except for Reh cell line. Compound 9 showed lowest IC50 …