Yazar "Çalışır, Ümit" için listeleme
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Bazı karbazol schiff bazlarının katyon bağlama özelliklerinin kondüktometrik incelenmesi
Çiçek, Baki; Çalışır, Ümit (2017)Bu çalışmada (Z)-9-butyl- N-(2,3,4-trimethoxybenzylidine)-9H-carbazol-3-amine (Schiff-Karbazol-Anisol, SKA) ve (Z)-3-((9-octyl-9H-carbazol-3-ylimino)methyl) benzene-1,2-diol (Schiff-Karbazol-Fenol, SKF) orijinal karbazol ... -
Bazı yeni N-sübstitüe amino asit esterlerinin yapısal özelliklerinin in silico ile araştırılması
Çalışır, Ümit; Çiçek, Baki (2023)Bu çalışma kapsamında oldukça önemli biyolojik kullanım alanlarına sahip N-sübstitüe glisin ester bileşiklerinin bazı teorik (hesapsal) özellikleri HyperChem programı yardımıyla hesaplanmıştır. HyperChem programı kullanılarak ... -
Benzo-tiyo crown eterlerin sentezi ve ekstraktif özelliklerinin incelenmesi
Çalışır, Ümit (Balıkesir Üniversitesi Fen Bilimleri Enstitüsü, 2014)Bu çalışma iki aşamadan oluşmaktadır. İlk olarak, bazı makro halkalı benzo tiyo okso crown eterlerin ve benzo okso crown eterlerin sentezleri gerçekleştirilmiştir. Daha sonra ise bu crownların, iyon çiftleri ekstraksiyonu ... -
Comparison of classic and microwave-assisted synthesis of benzo-thio crown ethers, and investigation of their ion pair extractions
Çalışır, Ümit; Çiçek, Baki (Elsevier Science Bv, 2017)Macrocyclic benzo-thio crown ethers and benzo-oxo crown ethers were prepared using an esterification ring closing method. These compounds were synthesised using 2,2'-dithiodibenzoyl chloride, and various glycols and dithiols, ... -
Comparison of microwave-assisted synthesis and steglich thioesterification for the modification of nanotubes
Aslan, Mehmet; Çalışır, Ümit; Çiçek; Baki (Bentham Science Publ Ltd, 2024)Organo-modified carbon nanotubes have recently gained the interest of many research groups. The potential for applying a new generation of organo-modified carbon nanotubes in many technological fields reveals the importance ... -
The determination of the carbonic anhydrases activators in vitro effect of mixed donor crown ethers
Akkemik, Ebru; Çicek, Baki; Camadan, Yasemin; Çalışır, Ümit; Onbaşıoğlu, Zekai (Wiley, 2018)Carbonic anhydrases (CAs) play an important function in various physiological and pathological processes. Therefore, many researchers work in this field in order to design and synthesize new drugs. Both inhibitors and ... -
The investigation of complexation properties and hard-soft acid-base relationship between thiacrown ethers and metal ions
Çiçek, Baki; Çalışır, Ümit (Bentham Science Publ Ltd, 2016)Background: There are numerious work on thiacrown ethers that are utilized for binding metal ions. Usually, relative binding ratios have been reported for few selected cations in these works. This study aims to develop a ... -
Investigation of in vitro and in silico effects of some novel carbazole Schiff bases on human carbonic anhydrase isoforms I and II
Camadan, Yasemin; Çiçek, Baki; Adem, Şevki; Çalışır, Ümit; Akkemik, Ebru (Taylor & Francis Inc, 2021)Carbonic anhydrases (CAs, EC4.2.1.1) are metalloenzymes that catalyse reversible hydration reaction of carbon dioxide to bicarbonate and protons. In recent years, there has been a great interest in inhibitors/activators ... -
Is There A Prognostic Significance For Copper, Beryllium, Boron, Titanium and Vanadium Ions in Prostate Cancer?
Altun, Eren; Çiçek, Baki; Çalışır, Ümit (2022)Aim: There are several epidemiological, clinical and experimental studies that relate heavy metal exposure to Prostatic adenocarcinoma (PCa).In this study, the relationship between benign prostatic hyperplasia (BPH) and ... -
İnsan karbonik anhidraz I,II izoenzim aktiviteleri üzerine bazı tiyocrown eterlerin etkisi
Akkemik, Ebru; Çalışır, Ümit; Çiçek, Baki (2017)Metalo enzim sınıfının bir üyesi olan karbonik anhidrazlar karbondioksitin bikarbonata ve protona dönüşümünü katalizlerler. Bir çok izoenzime sahip olan karbonik anhidrazların inhibisyonu veya aktivasyonu fizyolojik açıdan ... -
Microwave assisted synthesis of benzo-azacrown ethers and in vitro inhibition studies on hCA I–II
Sapmaz, Aycan; Çalışır, Ümit; Akkemik, Ebru; Çiçek, Baki (Pleiades Publishing, 2023)In this study, macro-ringed benzo-aza-oxa-crown ethers were synthesized by a cyclization reaction between 2,2′-dithiodianiline and mono/di/tri/tetraethylene glycol dichloride/dibromide with Cs2CO3 as a catalyst under ... -
Microwave-assisted cross-coupling synthesis of aryl functionalized MWCNTs and investigation of hydrogen storage properties
Çalışır, Ümit; Çiçek, Baki; Doğan, Mehmet (Taylor & Francis Inc, 2021)In recent years, nanostructures have attracted the attention of many scientists due to their unique properties. Many properties of nanostructures can be improved by changing the surface. For this purpose, multi-walled ... -
Microwave-assisted synthesis of aromatic thiadiazol crown ethers and determination of complexation properties with metal ions by application of Job ' s plot method to conductometry
Canbolat, Musa; Çalışır, Ümit; Çiçek, Baki (Wiley-V C H Verlag GMBH, 2022)The microwave-assisted synthesis technique, one of the pioneers of green chemistry, was used to synthesize aromatic thiadiazole crown ethers in this study. Thiadiazole crown ethers were synthesized by the cyclization ... -
Organo-modifiye karbon nanotüplerin sentezi, karakterizasyonu ve bazı uygulama alanları
Çalışır, Ümit (Balıkesir Üniversitesi Fen Bilimleri Enstitüsü, 2020)Nanotüplerin yeni nesil birçok uygulama potansiyeli olması, nanotüpler üzerindeki kovalent modifikasyonların önemini ortaya koymaktadır. Nanotüplerin modifikasyonuyla çözünürlükleri artırılmakta ve uygulama alanları ... -
S,S'-bis(2-piridinil)-2,2'-ditiyosalisiltiyoat bileşiğinin demir (III) iyonu ile kompleksleşme özelliklerinin in silico incelenmesi
Çalışır, Ümit; Çiçek, Baki (Afyon Kocatepe Üniversitesi, 2024)S,S’-bis(2-piridinil)-2,2’-ditiyosalisiltiyoat bileşiği disülfit bağı içeren kükürtlü bileşiklerdendir. Ayrıca bileşikte tiyoester grupları mevcuttur. S,S’-bis(2-piridinil)-2,2’-ditiyosalisiltiyoat bileşiğinin sıvı-sıvı ... -
Synthesis and optical characterization of novel carbazole schiff bases
Çicek, Baki; Çalışır, Ümit; Tavaslı, Mustafa; Tülek, Remziye; Teke, Ali (Elsevier Science BV, 2018)In this study, newly substituted carbazole derivatives of S1; (Z)-4-((9-isobutyl-9H-carbazol-3-ylimino) methyl)phenol, S2; (Z)-9-butyl- N-(2,3,4-trimethoxybenzylidine)-9H-carbazol-3-amine, S3; (Z)-4-((9-octyl-9H-carbazol ... -
Synthesis of thiol-glycol-functionalized carbon nanotubes and characterization with FTIR, TEM, TGA, and NMR technics
Çalışır, Ümit; Çiçek, Baki (Springer International Publishing Ag, 2020)Carbon nanotube is one of the important topics of interest in the nanotechnology science. Many scientists have been interested in surface-modified nanotubes for decades. In this study, multi-walled carbon nanotubes (MWCNTs) ... -
Synthesis, characterizations of aryl-substituted dithiodibenzothioate derivatives, and investigating their anti-Alzheimer's properties
Çalışır, Ümit; Camadan, Yasemin; Çiçek, Baki; Akkemik, Ebru; Eyüpoğlu, Volkan; Adem, Şevki (Taylor & Francis Inc, 2021)The main objective of the present study was to synthesize potential inhibitor/activators of AChE and hCA I-II enzymes, which are thought to be directly related to Alzheimer's disease. Dithiodibenzothioate compounds were ...
