Physical Sciences and Mathematics Commons^™

Attention Mechanism In Deep Neural Networks For Computer Vision Tasks, Haohan Li

Doctoral Dissertations

“Attention mechanism, which is one of the most important algorithms in the deep Learning community, was initially designed in the natural language processing for enhancing the feature representation of key sentence fragments over the context. In recent years, the attention mechanism has been widely adopted in solving computer vision tasks by guiding deep neural networks (DNNs) to focus on specific image features for better understanding the semantic information of the image. However, the attention mechanism is not only capable of helping DNNs understand semantics, but also useful for the feature fusion, visual cue discovering, and temporal information selection, which are …

Coral Reefs In The Gulf Of Mexico Large Marine Ecosystem: Conservation Status, Challenges, And Opportunities, Diego L. Gil-Agudelo, Carlos E. Cintra-Buenrostro, Jorge Brenner, Patricia Gonzalez-Diaz, William Kiene, Caitlin Lustic, Horacio Perez-Espana

School of Earth, Environmental, and Marine Sciences Faculty Publications and Presentations

The importance of coral reefs (CR) within marine ecosystems has become widely recognized. Although shallow CR are not as abundant in the Gulf of Mexico (GoM) as in other areas such as the Caribbean, their uniqueness, singularity, isolation, and conservation status make their conservation highly important. Corals and CR, both shallow and deep, are more widely distributed throughout the GoM than previously thought, providing new venues of research but also new challenges for their sustainable management. They are widely present in the three countries circumscribing the GoM (Cuba, Mexico, and the United States). Corals are also distributed throughout different depths, …

Effects Of Integrated Application Of Plant-Based Compost And Urea On Soil Food Web, Soil Properties, And Yield And Quality Of A Processing Carrot Cultivar, A. Habteweld, D. Brainard, A. Kravchencko, Parwinder Grewal, H. Melakeberhan

School of Earth, Environmental, and Marine Sciences Faculty Publications and Presentations

Soil nutrient management system characterized by reduced input of inorganic fertilizers integrated with organic amendments is one of the alternatives for reducing deleterious environmental impact of synthetic fertilizers, suppressing soil-borne pests and diseases, and improving soil health and crop yield. A hypothesis of the present study was that lower rates of urea mixed with higher rates of plant compost (PC) would improve nematode community structure, soil food web condition, soil biological, and physiochemical properties, and yield and quality of a processing carrot (Daucus carota) cultivar. Urea and PC were each applied at 135kg nitrogen (N)/ha alone or at 3:1, 1:1, …

New County Records Of Amphibians And Reptiles From South Texas, Usa, Clinton J. Guadiana, Padraic S. Robinson, Matthew S. Schalk, Drew R. Davis

School of Earth, Environmental, and Marine Sciences Faculty Publications and Presentations

Several species of amphibians and reptiles reach their northern range limit in south Texas, USA. Herpetological research in the area, as well as frequent visits from amphibian and reptile enthusiasts, have helped to form a more complete understanding of amphibian and reptile distributions across the region. However, gaps in the recognized distribution of many species remain. Efforts to better document species occurrence are confounded by the lack of public land and the fact that most of south Texas is privately owned, making access to suitable habitat difficult (Schmidly et al. 2001)

Comparison Of The Tally Numbering System To Traditional Arithmetic Systems In Field Programmable Gate Arrays, Robert Paul Shredow

EWU Masters Thesis Collection

This research explores the use of heterogeneous computing platforms for use in machine learning as well as different neural network architectures. These platforms and architectures can be used to accelerate the complex operations that are required for machine learning, more specifically neural networks. The use of different architectures, implementing different types of numbering and mathematics systems is explored in hopes of accelerating mathematical functions. The heterogeneous computing platform explored in this thesis is a Field Programmable Gate Arrays (FPGA), specifically a SoC/FPGA which is a ARM CPU and a FPGA in the same chip. FPGAs are unique because they are …

The Global Existence Of Small Self-Interacting Scalar Field Propagating In The Contracting Universe, Anahit Galstian, Karen Yagdjian

School of Mathematical and Statistical Sciences Faculty Publications and Presentations

We present a condition on the self-interaction term that guaranties the existence of the global in time solution of the Cauchy problem for the semilinear Klein-Gordon equation in the Friedmann-Lamaˆitre-Robertson-Walker model of the contracting universe. For the Klein- Gordon equation with the Higgs potential we give a lower estimate for the lifespan of solution.

Consultation Summary For Proposed Declared Pest Rates 2020/2021, Department Of Primary Industries And Regional Development, Western Australia

Biosecurity published reports

In accordance with the Biosecurity and Agriculture Management (Declared Pest Account) Regulations 2014, the Minister for Agriculture and Food carries out consultation on Declared Pest Rates, to be considered prior to the rates being determined and gazetted.

This document is the Department of Primary Industries and Regional Development's response to the submissions received.

A Review: A Comparison Of Different Adsorbents For Removal Of Cr (Vi), Cd (Ii) And Ni (Ii), Anja Pfeifer, Mojca Skerget

Turkish Journal of Chemistry

A review of the studies dealing with the removal of chromium, cadmium, and nickel ions with different adsorbents published in the literature between 2014 and 2018 is given in tabular form, along with the adsorption conditions, adsorption isotherm, and kinetic models applied by the authors to model the experimental data and adsorption capacities. The review focuses on the efficiency of ion removal.

Preparation Of Rapid (Chain-Stopped) Alkyds By Incorporation Of Gum Rosin And Investigation Of Coating Properties, Cemi̇l Dizman, Eli̇f Ozman

Turkish Journal of Chemistry

In this study, the synthesis, characterization, and properties of a short oil length chain--stopped(rapid) alkyd resin is investigated. Gum rosin modified alkyd resin (RA-GR) was prepared using soybean oil, phthalic anhydride, glycerin and gum rosin acid. An alkyd modified with benzoic acid (RA-BA) was also prepared for comparison. FTIR analyses and GPC measurements of the alkyds were used for characterization. Other properties such as the viscosity, acid value, and solid content of the final resins were determined. Separately, the synthesized resins were used in paint formulations without any changes in other parameters such as filler, airdrying agents, solvents, etc. Paints …

An Anthracene Based Fluorescent Probe For The Selective And Sensitive Detection Of Chromium (Iii) Ions In An Aqueous Medium And Its Practical Application, Erman Karakuş

Turkish Journal of Chemistry

An anthracene based fluorescent probe, integrated with thiophene moiety, exhibited selective and sensitive detection of chromium (III) ions over other metal ions. Its synthesis was achieved by simple mixing of two commercially available compounds, 2-aminoanthracene, and 2-thiophenecarboxaldehyde, in onestep without the needed complex purification process. The probe molecule (ANT-Th) offered exceptional features such as "turn-on" fluorescence response, low detection limit (0.4 μM), and fast response time (< 1 min) via C$=$N bond hydrolysis. Also, a simple test paper system was developed for the rapid detection of chromium (III) ions with the naked eye.

Oxidation Of Crotyl Alcohol By N-Chloro-4-Methylbenzene Sulphonamide In Acidic Medium And In Alkaline Media In The Presence Of Os(Viii) Catalyst-A Kinetic Pathway, Priyamvada Sharma, Riya Sailani, Anita Meena, Chandra Lata Khandelwal

Turkish Journal of Chemistry

The kinetic pathway of oxidation of crotyl alcohol by sodium salt of $N$-chloro-4-methylbenzene sulphonamide (chloramine-T) in acidic and alkaline medium has been studied. The speciation of chloramine-T has been made to suggest a proper and reasonable reaction mechanism. The thermodynamic quantities such as activation energy and activation entropy are evaluated in acidic as well as in catalysed alkaline medium. An anticipated reaction mechanism has been suggested.

Sorption Studies Of Europium On Cerium Phosphate Using Box-Behnken Design, Süleyman İnan

Turkish Journal of Chemistry

Amorphous cerium phosphate was prepared and characterized. Three-level Box-Behnken design (BBD) was employed to analyze the effect of process variables such as initial pH (2-6), contact time (60--180 min), and sorbent amount (0.05-0.15 g) on the sorption capacity of europium. Analysis of variance (ANOVA) revealed that the main effect of initial pH and sorbent amount has a substantial impact on the sorption of Eu(III). Probability F-value (F = 3 $\times $ 10$^{-3})$ and correlation coefficient (R$^{2}$ = 0.97) point out that the model is in good accordance with experimental data. The maximum sorption capacity of Eu(III) was found to be …

Effect Of Cnt Incorporation On Pan/Ppy Nanofibers Synthesized By Electrospinning Method, Ati̇ke İnce Yardimci, Meti̇n Tanoğlu, Selahatti̇n Yilmaz, Yusuf Selamet

Turkish Journal of Chemistry

In this study, carbon nanotubes (CNTs) added polyacrylonitrile/polypyrrole (PAN/PPy) electrospun nanofibers were produced. Average diameters of the nanofibers were measured as 268 and 153 nm for 10 and 25 wt% of PPy contents, respectively. A relatively higher strain to failure values (23.3%) were observed for the low PPy content. When as-grown CNTs (1 and 4 wt%) were added into the PAN/PPy blends, disordered nanofibers were observed to form within the microstructure. To improve the interfacial properties of CNTs/PAN/PPy composites, CNTs were functionalized with H$_{2}$SO$_{4}$/HNO$_{3}$/HCl solution. The functionalized CNTs were well dispersed within the nanofibers and aligned along the direction of …

Characterization, Mechanical, And Antibacterial Properties Of Nanofibers Derived From Olive Leaf, Fumitory, And Terebinth Extracts, Ni̇lşen Sünter Eroğlu, Suat Canoğlu, Meti̇n Yüksek

Turkish Journal of Chemistry

In this study, nanofiber structures were obtained with convenient polymers (PVA [polyvinyl alcohol] and PCL [poly º-caprolactone]) derived from the herbal extracts of olive leaves, fumitory, and terebinth plants. Optimum nanofiber structures were identified by measuring viscosity and conductivity values and performing morphological analysis, characterization, and mechanical tests of the prepared solutions. The potential use for wound healing at the most efficient level was determined as a result of antibacterial analysis of the structures obtained. APT (PVA/terebinth) and BFO (PCL/fumitory) nanofibers had the thinnest diameter range and the highest strength values. In terms of the determination of antibacterial effects, nanofiber …

Synthesis And Bioactivities Of 1-(4-Hydroxyphenyl)-2-((Heteroaryl)Thio)Ethanones As Carbonic Anhydrase I, Ii And Acetylcholinesterase Inhibitors, Cem Yamali, Hali̇se İnci̇ Gül, Yeli̇z Demi̇r, Cavi̇t Kazaz, İlhami̇ Gülçi̇n

Turkish Journal of Chemistry

The discovery of enzyme targeting inhibitors is a popular area of drug research. Biological activities of the compounds bearing phenol and heteroaryl groups make them popular groups in drug design targeting important enzymes such as acetylcholinesterase (AChE, E.C.3.1.1.7) and carbonic anhydrases (CAs, EC 4.2.1.1). 1-(4-hydroxyphenyl)-2-((aryl)thio)ethanones as possible AChE and CAs inhibitors were synthesized, and their chemical structures were confirmed by IR, $^{1}$H NMR, $^{13}$C NMR, and HRMS. The compounds 2 and 4 were found potent AChE inhibitors with the Ki values of 22.13 ± 1.96 nM and 23.71 ± 2.95 nM, respectively, while the compounds 2 (Ki $=$ 8.61 ± …

In Silico Adme Predictions And In Vitro Antibacterial Evaluation Of 2-Hydroxy Benzothiazole-Based 1,3,4-Oxadiazole Derivatives, Afnan Ahmed Alghamdi, Mohammad Mahboob Alam, Syed Nazreen

Turkish Journal of Chemistry

In the present work, a library of fifteen 2-hydroxy benzothiazole-linked 1,3,4 -oxadiazole derivatives have been synthesized and confirmed using different analytical techniques. All of the synthesized compounds have been tested for antibacterial and in silico pharmacokinetic studies for the first time. From the ADME predictions, compound 4 showed the highest in silico absorption percentage (86.77%), while most of the compounds showed more than 70% absorption. All of the compounds comply with the Lipinski rule of 5, suggesting that the compounds possess good drug likeness properties upon administration. Furthermore, all of the compounds follow the Veber rule, indicating good bioavailability and …

Preparation, Structure Elucidation, And Antioxidant Activity Of New Bis(Thiosemicarbazone) Derivatives, Hasan Yakan

Turkish Journal of Chemistry

Schiff-base-bearing new bis(thiosemicarbazone) derivatives were prepared from terephthalaldehyde and various thiosemicarbazides. FT--IR,$^{\, 1}$H NMR, $^{13}$C NMR, and UV--Vis spectroscopic methods and elemental analysis were used to elucidate the identification of the synthesized molecules. The in vitro antioxidant activity of the synthesized compounds was analysed with the 1,1-diphenyl-2-picryl hydrazyl free-radical-trapping process. The synthesized compounds exhibited lower antioxidant activity than the standard ascorbic acid. IC$_{50}$ values of the synthesized molecules measured from 3.81 $\pm $ 0.01 to 29.05 $\pm $ 0.11 $\mu$M. Among the synthesized compounds, compound 3 had the best antioxidant activity. Moreover, this study explained the structure--activity relationship of the …

New Sandwich-Type Polymeric Potassium-Dicyanoargentate(I) Complex: Synthesis, Characterization And Enzymatic Activity, Nesri̇n Korkmaz

Turkish Journal of Chemistry

Coordination compounds containing dicyanoargentate(I) have remarkable biological potential due to their therapeutic antibacterial, antifungal, antibiofilm, and anticancer properties. In this study, a new dicyanoargentate(I)-based complex was synthesized and characterized by various procedures (elemental, thermal, FT-IR for complex) involving crystal analysis of the complex. In addition, the biological activity of this new compound on the acetylcholinesterase (AChE) enzyme, an important enzyme for the nervous system, was investigated. When the infrared (IR) spectrum of the complex is examined, the OH vibration peak resulting from H$_{2}$O molecules in the structure at 3948-3337 cm$^{-1}$ and at 2138 cm$^{-1}$, along with a CN peak coordinated …

Voltammetric Determination Of Itopride Using Carbon Paste Electrode Modified With Gd Doped Tio$_{2}$Nanotubes, Abdulaziz Nabil Amro, Khadijah Emran, Hessah Alanazi

Turkish Journal of Chemistry

In the present work TiO$_{2}$ nanotubes (TNT) have been synthesized by alkaline hydrothermal transformation. Then they have been doped with Gd element. Characterizations of doped and undoped TNT have been done with TEM and SEM. The chemical composition was analyzed by EDX, Raman and FTIR spectroscopy. The crystal structure was characterized by XRD. Carbon paste electrode has been fabricated and mixed with Gd doped and undoped TNT to form a nanocomposite working electrode. Comparison of bare carbon paste electrode and Gd doped and undoped TNT carbon paste electrode for 1.0 × 10$^{-3}$ M K$_{4\, }$[Fe(CN)$_{6}$] voltammetric analysis; it was observed …

A Comparative Study On The Monovalent And Divalent Cation Separation Of Polymeric Films And Membranes From Salt Solutions Under Diffusion-Dialysis, Serkan Acar, Hacer Yeşi̇m Cengi̇z, Ayça Ergün, Eymen Konyali, Hüseyi̇n Deli̇göz

Turkish Journal of Chemistry

This study deals with selective separation of mono- and divalent cations from aqueous salt solutions using polymeric films based on polyethylene (PE) and polyamide6 (PA6), and two different commercial nanofiltration (NF) membranes. The diffusion rates (D) of ions (Na$^{+}$ and Ca$^{2+})$, separation factors ($\alpha )$ and ion rejections (R) of the films and NF membranes are examined comparatively as well as their surface morphology and hydrophilicity. It is observed that the diffusion rates of Na$^{+}$are in the range of 0.7-1.8 $\times $ 10$^{-8}$cm$^{2}$.s$^{-1\, }$in the decreasing order of PE $>$ NF90 $>$ NF270 $>$ PA6 while Ca$^{2+\, …

Fluorescent Sensing Platform For Low-Cost Detection Of Cu$^{\Mathbf{2+}}$ By Coumarin Derivative: Dft Calculation And Practical Application In Herbal And Black Tea Samples, Tahi̇r Savran, Abdurrahman Karagöz, Şükri̇ye Ni̇han Karuk Elmas, Duygu Aydin, Furkan Özen, Kenan Koran, Fatma Nur Arslan, Ahmet Orhan Görgülü, İbrahi̇m Yilmaz

Turkish Journal of Chemistry

A fluorogenic probe based on a coumarin-derivative for Cu$^{2+}$ sensing in CH$_{3}$CN/H$_{2}$O media (v/v, 95/5, 5.0 \textmu M) was developed and applied in real samples. 3-(4-chlorophenyl)-6,7-dihydroxy-coumarin (MCPC) probe was obtained by synthetic methodologies and identified by spectral techniques. The probe MCPC showed remarkable changes with a ``turn-off'' fluorogenic sensing approach for the monitoring of Cu$^{2+}$ at 456 nm under an excitation wavelength of 366 nm. The response time of the probe MCPC was founded as only 1 min. The detection limit of the probe MCPC was recorded to be 1.47 nM. The binding constant and possible stoichiometric ratio (1:1) values …

Bis Benzothiophene Schiff Bases: Synthesis And In Silico-Guided Biological Activity Studies, Yasemi̇n Ünver, Di̇lek Ünlüer, Şahi̇n Di̇rekel, Serdar Durdaği

Turkish Journal of Chemistry

Since benzo [$b$] thiophene scaffold is one of the privileged structures in drug discovery as this core exhibitsactivities for different biological problems, in this study bis (benzo[$b$]thiophene-2-yl) alkyl methanimine derivatives (1-9) were synthesized by reacting benzo[$b$]thiophene-2-carbaldehyde with diamines. All newly compounds were characterized by IR, $^{1}$H NMR and $^{13}$C NMR spectroscopic methods. Synthesized compounds were investigated using binary QSAR-based models on therapeutic activity prediction of synthesized compounds and they showed high predicted activities in following diseases: bacterial, angina, allergy, depression and obesity. Thus, they were then tested for their antimicrobial and antileishmanial activities as a result of this theoretical study. …

Synthesis, Biological Evaluation Of Antioxidant-Antibacterial Activities And Computational Studies Of Novel Anthracene- And Pyrene-Based Schiff Base Derivatives, Ayşegül Gümüş, Veysi̇ Okumuş, Selçuk Gümüş

Turkish Journal of Chemistry

Schiff base derivatives with anthracene- and pyrene-based units, A1-A6 and P1-P6 were synthesized (89%-99% yields). Schiff base derivatives were designed to possess an heterocyclic moiety on one side to enhance the coordination ability towards metals. To investigate the biological assay of the newly synthesized compounds, their DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging, metal chelating, reducing power, antibacterial and DNA binding activities were tested. A6 (63.1%) showed the maximum free radical scavenging activity among all. However, compound P3 at concentration of 200 \textmu g/mL possessed the highest metal chelating (45.8%) activity and power of reduction. In addition, P3 and A6 showed antibacterial activity …

A Novel Proton-Exchange Porous Silicon Membrane Production Method For \Textmu Dmfcs, Meltem Gör Bölen, Tevhi̇t Karacali

Turkish Journal of Chemistry

This study introduces a new production method to use as a porous silicon-based proton exchange membrane for μDMFCs. In this respect, EIS, fuel crossover test, and fuel cell performance test at the μDMFC sample cell are performed at room temperature on a porous silicon-based membrane that was produced for passive mode μDMFC as a proton exchange membrane. The reason for performing the fuel crossover test is to ensure the silicon opened pores along the silicon wafer and to examine the fuel permeability of the membrane. The fuel crossover test shows that the fuel cell provides energy for about 60 min …

A Road Map To Assess Critical Materials Content In Boron Industrial Wastes Usingsustainable Micro-X-Ray Fluorescence And Total Reflection X-Ray Fluorescenceinstrumentation, İbrahi̇m Kula, Christian Gutsche, Yunus Erdoğan, Andreas Fittschen, Ursula Elisabeth Adriane Fittschen

Turkish Journal of Chemistry

Turkey is the leading country in the world in terms of boron production and sale. Increasing boron production goes along with an increasing generation of boron wastes. The pollution of the soil and the air around the waste piles, as well as the occupation of several square kilometers of ground, are major environmental problems. It is, therefore, very important to make use of the wastes to both protect the environment and create revenue. This work presenteda road map for fast screening of boron waste for critical elements followed by determination of the elements using small footprint low power instrumentation. The …

A Novel Selective Fluorescent Chemosensor For Fe$^{3+}$ Ions Based On Phthalonitrile Dimer:Synthesis, Analysis, And Theoretical Studies, Shaya Al-Raqa, İpek Ömeroğlu, Doğan Erbahar, Mahmut Durmuş

Turkish Journal of Chemistry

Phenyl-4,4-di(3,6-dibutoxyphthalonitrile) (3) was synthesized by the reaction of 1,4-phenylenebisboronic acid (1) and 4-bromo-3,6-dibutoxyphthalonitrile (2), using Suzuki cross-coupling reaction. The newly synthesized compound (3) was characterized by FT-IR, MALDI-MS, ESI-MS, $^{1}$H-NMR, $^{13}$C-NMR, and $^{13}$C-DEPT-135-NMR. The fluorescence property of phenyl-4,4-di(3,6- dibutoxyphthalonitrile) (3) towards various metal ions was investigated by fluorescence spectroscopy, and it was observed thatthe compound (3) displayed a significantly `turn-off? response to Fe$^{3+}$, which was referred to 1:2 complex formation between ligand (3) and Fe$^{3+}$. The compound was also studied via density functional theory calculations revealing the interaction mechanism of the molecule with Fe$^{3+}$ ions.

A Novel Molecular Imprinting Polymer For The Selective Adsorptionof D-Arabinitol From Spiked Urine, Yuni Retnaningtyas, Ganden Supriyanto, Ni Nyoman Tri Puspaningsih, Roedi Irawan, Siswandono Siswodihardjo

Turkish Journal of Chemistry

In this research, molecular imprinting polymers (MIPs) for D-arabinitol were synthesized using a bulk polymerization method through a noncovalent approach. The MIPs were prepared by using D-arabinitol as a template, acrylamide as a functional monomer, ethylene glycol dimethacrylateas cross-linker, benzoyl peroxide as an initiator and dimethyl sulfoxideas a porogen. MIPS was synthesized in several formulas with a different molar ratio of template to functional monomers and cross-linker. Fourier-transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM) were used to characterize the MIPs produced. A batch rebinding assay was used to test the binding efficiency of each formula. Batch rebinding test …

L-Proline/Cholesterol And Diosgenin Based Thiourea Cooperative System For The Directasymmetric Aldol Reaction In The Presence Of Water, Serkan Eymur, Eni̇s Taşci, Arzu Uyanik, Mustafa Yilmaz

Turkish Journal of Chemistry

A series of cholesterol and based hydrophobic urea and thiourea compounds were synthesized and successfully used as a cocatalyst for L-proline catalyzed aldol reactions in the presence of water. The anticonfigured products were obtained with good yields (up to 94%), high diastereoselectivities (up to 95:5), and high enantiomeric excesses (up to 93% ee). The successful results for catalytic efficiency of L-proline in the presence of water reveal the importance of the hydrophobic nature of cholesterol and diosgenin parts of thiourea on the reactivity and selectivity in the presence of water.

Flowerlike Hybrid Horseradish Peroxidase Nanobiocatalyst For The Polymerization Of Guaiacol, Ersen Göktürk

Turkish Journal of Chemistry

In this study, the catalytic activity and stability of flowerlike hybrid horseradish peroxidase (HRP) nanobiocatalyst (HRP-Cu$^{2+}$) obtained from Cu$^{2+}$ ions and HRP enzyme in the polymerization reaction of guaiacol were analyzed. We demonstrated that HRP-Cu$^{2+}$ and hydrogen peroxide (H$_{2}$O$_{2}$) initiator showed significantly increased catalytic activity and stability on the polymerization of guaiacol compared to that of free HRP enzyme. Poly(guaiacol) was observed with quite high yields (88%) and molecular weights (38,000 g/mol) under pH 7.4 phosphate-buffered saline (PBS) conditions at 60 °C with 5 weight% of HRP-Cu$^{2+}$ loading. HRP-Cu$^{2+}$ also shows very high thermal stability and works even at 70 …

Determination Of Blood Glucose Parameter From Human Blood Serum By Using A Quartzcrystal Microbalance Sensor Coated With Phthalocyanines Compounds, Evi̇n Şahi̇n Sadik, Hamdi̇ Meli̇h Saraoğlu, İlke Gürol, Mehmet Ali̇ Ebeoğlu, Fatma Emel Koçak

Turkish Journal of Chemistry

Determining the blood glucose level is important for the prevention and treatment of diabetes mellitus. We developed a sensor system using Quartz Crystal Microbalance (QCM) to determine the blood glucose level from human blood serum. This study consists of two experimental stages: artificial glucose/pure water solution tests and human blood serum tests. In the first stage of the study, the QCM sensor with the highest performance was identified using artificial glucose solution concentrations. In the second stage of the study, human blood serum measurements were performed using QCM to determine blood glucose levels. QCM sensors were coated with phthalocyanines (Pcs) …