Search Results - "Erçağ, Erol"

Cyanomethylation of 2,3,4,9-tetrahydro-1H-carbazol-1-one based on using two different reagents: Antioxidant activity and DFT studies by Serdaroğlu, Goncagul, Uludag, Nesimi, Erçağ, Erol

“…•Cyanomethylation of 2,3,4,9-tetrahydro-1H-carbazol-1-one.•FT-IR, NMR, UV–vis studies were performed and compared with the calculated results.•Antioxidant…”
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Electrochemical Determination of Food Preservative Nitrite with Gold Nanoparticles/p-Aminothiophenol-Modified Gold Electrode by Üzer, Ayşem, Sağlam, Şener, Can, Ziya, Erçağ, Erol, Apak, Reşat

“…Due to the negative impact of nitrate and nitrite on human health, their presence exceeding acceptable levels is not desired in foodstuffs. Thus, nitrite…”
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Titanium dioxide nanoparticles–based colorimetric sensors for determination of hydrogen peroxide and triacetone triperoxide (TATP) by Gökdere, Bahar, Üzer, Ayşem, Durmazel, Selen, Erçağ, Erol, Apak, Reşat

“…Due to its relatively simple preparation and readily available precursors, determination of triacetone triperoxide (TATP) by portable devices has become…”
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Novel coumarin-chalcone derivatives: Synthesis, characterization, antioxidant, cyclic voltammetry, molecular modelling and biological evaluation studies as acetylcholinesterase, α-glycosidase, and carbonic anhydrase inhibitors by Çelik Onar, Hülya, Özden, Eda Mehtap, Taslak, Hava Dudu, Gülçin, İlhami, Ece, Abdulilah, Erçağ, Erol

“…In this study, a total of 12 coumarin-chalcone derivatives, 6 of which are original were synthesized. The structures of the newly synthesized compounds were…”
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Development of a gold nanoparticles-based colorimetric sensor for the indirect determination of ammonium dinitramide and tetryl by Mamatioğlu, Fatma, Üzer, Ayşem, Erçağ, Erol, Apak, Reşat

“…Ammonium dinitramide (ADN) is a strong, environmentally friendly oxidizer used in composite solid rocket propellants. As there is no reliable colorimetric…”
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Electrochemical determination of boron using the signal suppression of mannitol on a gold nanoparticle coated p-Aminothiophenol polymer electrode by Sağlam, Şener, Üzer, Ayşem, Erçağ, Erol, Apak, Reşat

“…[Display omitted] •Boron was determined with a novel GC/AuNPs/poly(p-aminothiophenol) sensor electrode.•Indirect voltammetric method for boron made use of…”
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Design and in silico study of the novel coumarin derivatives against SARS-CoV-2 main enzymes by Özdemir, Mücahit, Köksoy, Baybars, Ceyhan, Deniz, Sayın, Koray, Erçağ, Erol, Bulut, Mustafa, Yalçın, Bahattin

“…The novel coronavirus (SARS-CoV-2) causes severe acute respiratory syndrome and can be fatal. In particular, antiviral drugs that are currently available to…”
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Colorimetric Sensing of the Insensitive Energetic Material 3-Nitro-1,2,4-triazol-5-one (NTO) Using l-Cysteine Stabilized Gold Nanoparticles and Copper(II) by Türkekul, Kader, Üzer, Ayşem, Can, Ziya, Erçağ, Erol, Apak, Reşat

“…Since conventional sensitive explosives have given rise to unforeseen accidents during storage and transport, the demand of modern armies for insensitive…”
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Indirect electrochemical determination of antioxidant capacity with hexacyanoferrate(III) reduction using a gold nanoparticle-coated o-phenylenediamine-aniline copolymer electrode by Arman, Aysu, Üzer, Ayşem, Sağlam, Şener, Erçağ, Erol, Apak, Reşat

“…In spite of the many unstandardized literature methods for the determination of the antioxidant activity/capacity (AOA/AOC) of food extracts, there are a very…”
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Electrochemical sensor for nitroaromatic type energetic materials using gold nanoparticles/poly(o-phenylenediamine–aniline) film modified glassy carbon electrode by Sağlam, Şener, Üzer, Ayşem, Tekdemir, Yasemin, Erçağ, Erol, Apak, Reşat

“…In this work, a novel electrochemical sensor was developed for the detection of nitroaromatic explosive materials, based on a gold nanoparticle-modified glassy…”
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Determination of nitroaromatic and nitramine type energetic materials in synthetic and real mixtures by cyclic voltammetry by Üzer, Ayşem, Sağlam, Şener, Tekdemir, Yasemin, Ustamehmetoğlu, Belkıs, Sezer, Esma, Erçağ, Erol, Apak, Reşat

“…Nitro-explosives contain reducible aromatic –NO2 groups or cyclic >N–NO2 bonds that may undergo reductive cleavage. This work reports the development of a…”
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The cupric ion reducing antioxidant capacity and polyphenolic content of some herbal teas by Apak, Reşat, Güçlü, Kubilay, Ozyürek, Mustafa, Esin Karademir, Saliha, Erçağ, Erol

“…The total antioxidant capacity of the aqueous extracts of some endemic herbs-prepared as infusions by steeping these herbs in hot water--was assayed with…”
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Indirect Determination of Pentaerythritol Tetranitrate (PETN) with a gold nanoparticles−based colorimetric sensor by Üzer, Ayşem, Yalçın, Uğur, Can, Ziya, Erçağ, Erol, Apak, Reşat

“…Pentaerythritol tetranitrate (PETN) is the nitrate ester of pentaerythritol, used as an energetic and filling material for military and civilian purposes and…”
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Novel Spectroscopic and Electrochemical Sensors and Nanoprobes for the Characterization of Food and Biological Antioxidants by Apak, Reşat, Demirci Çekiç, Sema, Üzer, Ayşem, Çelik, Saliha Esin, Bener, Mustafa, Bekdeşer, Burcu, Can, Ziya, Sağlam, Şener, Önem, Ayşe Nur, Erçağ, Erol

“…Since an unbalanced excess of reactive oxygen/nitrogen species (ROS/RNS) causes various diseases, determination of antioxidants that can counter oxidative…”
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Electrochemical Determination of TNT, DNT, RDX, and HMX with Gold Nanoparticles/Poly(Carbazole-Aniline) Film–Modified Glassy Carbon Sensor Electrodes Imprinted for Molecular Recognition of Nitroaromatics and Nitramines by Sağlam, Şener, Üzer, Ayşem, Erçağ, Erol, Apak, Reşat

“…Since nitroaromatic- and nitramine-type energetic materials, mostly arising from military activities, are persistent pollutants in soil and groundwater,…”
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Determination of hydrogen peroxide and triacetone triperoxide (TATP) with a silver nanoparticles—based turn-on colorimetric sensor by Üzer, Ayşem, Durmazel, Selen, Erçağ, Erol, Apak, Reşat

“…[Display omitted] •Peroxide explosives were detected with a silver nanoparticles (AgNPs)–based sensor.•H2O2 oxidized AgNPs to Ag+, which in turn oxidized…”
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4‑Aminothiophenol Functionalized Gold Nanoparticle-Based Colorimetric Sensor for the Determination of Nitramine Energetic Materials by Üzer, Ayşem, Can, Ziya, Akın, İlknur, Erçağ, Erol, Apak, Reşat

“…The heterocyclic nitramine compounds, hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), are two most…”
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Selective spectrophotometric determination of TNT in soil and water with dicyclohexylamine extraction by Üzer, Ayşem, Erçağ, Erol, Apak, Reşat

“…Contaminated land and groundwater remediation in military waste dumping sites often necessitates the use of simple, cost-effective, and rapid tests for…”
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Determination of Triacetone Triperoxide with a N,N‑Dimethyl‑p‑phenylenediamine Sensor on Nafion Using Fe3O4 Magnetic Nanoparticles by Can, Ziya, Üzer, Ayşem, Türkekul, Kader, Erçağ, Erol, Apak, Reşat

“…The explosive triacetone triperoxide (TATP) can be easily manufactured from readily accessible reagents and is extremely difficult to detect, owing to the lack…”
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Preparation of cholesterol-imprinted polymer for selective adsorption of cholesterol from gastrointestinal mimicking solution by Karakoç, Veyis, Erçağ, Erol

“…The purpose of this study is to synthesize a highly selective adsorbent to remove cholesterol, one of the most important causes of cardiovascular diseases,…”
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