Department of Chemistry, Thesis

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Thesis (1179)

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Author
Yılmaz, Halit (3)
Zengin, Veysel (3)
Akbayrak, Serdar (2)
Aksoyoğlu, E Şebnem (2)
Aktekin, Nevzat (2)

Subject
Chemistry. (102)
Chemistry, Organic (80)
Polymers. (54)
Macromolecules. (24)
Nanoparticles. (20)

Date Issued
1960 - 1979 (145)
1980 - 1999 (415)
2000 - 2019 (588)
2020 - 2021 (31)

Recent Submissions

Studies on chiral spiropyran derivatives
Şentürk, Bengi; Akdağ, Akın; Department of Chemistry (2021-8-13)
Spiropyrans are a class of organic molecules that possess photochromic characteristics. Their isomerization to the merocyanine form can be induced by light, heat, polarity, and pH of the environment. The merocyanine form i...
Behavior of Alpha-2-Macroglobulin unique peptides in biological samples
Yıldız, Pelin; Özcan Kabasakal, Süreyya; Department of Chemistry (2021-8-9)
Proteomics is the comprehensive study of proteins and proteoforms. Proteomics research enables the identification of new protein biomarkers for diagnostic applications and investigates novel targets for drug development. I...
REGIOSELECTIVE RING OPENING REACTIONS OF AZIRIDINE-2-PHOSPHONATES AND AZIRIDINE BASED CHIRAL LIGANDS FOR CATALYTIC, ASYMMETRIC AZOMETHINE YLIDE CYCLOADDITIONS AND AZA-HENRY REACTION
Beksultanova, Nurzhan; Doğan, Özdemir; Department of Chemistry (2021-7-16)
Aziridines are small three-membered heterocyclic compounds. They are important as building blocks for many nitrogen-containing biologically active compounds and as chiral ligands in metal catalyzed asymmetric synthesis of ...
Synthesis of Spiro-Pyrrolopyridazines
Dündar, Buse Ayşen; Zora, Metin; Department of Chemistry (2021-7-14)
Heterocyclic molecules have great importance in organic chemistry due to their significant functions in very wide areas. Scientists tend to work on them because they exhibit excellent properties from medicine to material s...
Design And Synthesis Of Triazene And Indole-Substituted Push–Pull Chromophores Via Click-Type Transformations: Effects Of Donor Groups On The Optoelectronic Properties
ERDEN, KÜBRA; Dengiz, Çağatay; Department of Chemistry (2021-7)
Conjugated materials play an indispensable role in daily life due to their extraordinary properties and applications. Of particular interest are the donor–acceptor-type push–pull chromophores since they have already been u...
Investigation of the effect of heteroatom and integration of boron on benzodithiophene and pyrazine containing conjugated polymers for photovoltaic applications
Abacıoğlu, Yeşim; Çırpan, Ali; Sürdem, Sedat; Department of Chemistry (2021-7)
In the context of this thesis, two different subjects were investigated for photovoltaic applications of conjugated polymers; the effect of heteroatom and integration of boron. The element boron has received considerable ...
Synthesis and investigation of optical and electrochemical properties of organoboron based donor-acceptor type conjugated polymers
Ayyıldız, Berrin; Çırpan, Ali; Dengiz, Çağatay; Department of Chemistry (2021-7)
In recent years, the element boron has an important place in the studies of alternative energy sources to solve problems arising in the field of energy production. In addition to its superior properties and wide use in man...
Studies towards the preparation of functionalized cellulose microspheres with affinities towards negatively charged biomembranes
Demirel, Kaan; Türkyılmaz, Serhan; Department of Chemistry (2021-7)
Cellulose microspheres (CMs), generally with diameters in the 10-1000 µm range, have been used as stationary phases in chromatography, substrates for ion exchange applications, supports for protein immobilization and solid...
The synthesis and characterization of thioglycolic acid and thiourea capped fluorescent zinc sulfide nanoparticles
Mertoğlu, Cemre; Volkan, Mürvet; Department of Chemistry (2021-6)
The changes in mitochondrial bioenergetics due to DNA mutations lead to an increase in the significance of mitochondria imaging of cancer cells. Since fluorescent imaging provides high resolution, sensitivity, and selectiv...
Optical and electrochemical properties of benzotriazole and benzodithiophene containing alternating copolymers
Yıldırım, Merve; Çırpan, Ali; Department of Chemistry (2021-2-15)
The demands of humanity are changing and enhancing day by day with the increasing population. One of the most significant needs is energy in the world; but not only energy is a requirement, but also green energ...
Amino Acid And Peptide Based Gels
Aykent, Güzide; Özçubukçu, Salih; Department of Chemistry (2021-2-12)
Self-assembling peptides and amino acid derivatives are becoming an emerging field especially in last decades. Especially for their usage in biomedical applications, tissue engineering and drug delivery, extensive research...
Fullerol based enzyme mimics and synthesis effort of tetra aryl pyranone
Soydan, Medine; Özçubukçu, Salih; Department of Chemistry (2021-2-12)
Although, natural enzymes have high catalytic activity and specificity, they are fragile and costly due to long purification processes. Therefore, scientists started to design and synthesize structures with ...
Synthesis of azobenzene containing macrocycles
Hoşgör, Ege; Akdağ, Akın; Department of Chemistry (2021-2-10)
Aromatic azo compounds are one of the well-known research topics of recent times due to their photoisomeric properties under ultraviolet or visible light. Generally, these substances undergo isomerization from the thermody...
Design, synthesis and characterization of 2,1,3-benzothiadiazole comprising polymers: the effect of bridging units on the optoelectronic properties and opv device construction
Zeytun Karaman, Cansu; Toppare, Levent Kamil; Özçubukçu, Salih; Department of Chemistry (2021-2-10)
Recently, conjugated polymers have obtained increasing popularity in a wide range of application areas such as electrochromic (EC) devices, biosensors, organic solar cells (OPVs) and organic light-emitting diodes (OLEDs). ...
Development of a new ethanol biosensor based on polyfluorene- g- poly(ethyleneglycol) and multiwalled carbon nanotubes
Deniz, Sıddıka Aybüke; Toppare, Levent Kamil; Söylemez, Saniye; Department of Chemistry (2021-2-5)
In this thesis study, a novel amperometric biosensor containing a conjugated polymer and a multiwalled carbon nanotube was developed for ethanol detection. Conjugated polymers have gained interest in biosensing and biomedi...
Asymmetric synthesis of tetrahydrothiophenes in the presence of bifunctional organocatalysts
Tümer, Mustafa Faik; Tanyeli, Cihangir; Department of Chemistry (2021-1-22)
In general, nitroolefins are convenient structures as Michael acceptors. To make it clear for this work, attack of a sulfur-containing nucleophile to a nitroolefin forms a C-S bond and opening the double bond would create ...
Synthesis, characterization and photovoltaic properties of benzo[c][1,2,5]oxadiazole based conjugated polymers for organic solar cells
Karakurt, Oğuzhan; Çırpan, Ali; Günbaş, Emrullah Görkem; Department of Chemistry (2021-1-22)
In this thesis, six conjugated polymers were synthesized by coupling of 2,1,3- benzoxadiazole derivatives with donor groups via Stille polycondensation reactions. Moreover, the effect of molecular weight for P1 and P2, eff...
Enantioselective sulfa-michael addition to trans-chalcone derivatives with quinine derived bifunctional organocatalysts
Tözendemir, Deniz; Tanyeli, Cihangir; Department of Chemistry (2020-12-28)
The use of organocatalysts has brought profound advantages in the context of asymmetric synthesis, in terms of ease of use and better compatibility with the environment. More than 20 organocatalysts of four different class...
Comparison of donor-acceptor-donor type conjugated systems with cross-exchange of donor units
Eroğlu, Deniz; Önal, Ahmet Muhtar; Ergün, Emine Gül Cansu; Department of Chemistry (2020-11-23)
In this thesis study, a series of new donor-acceptor donor type monomers were synthesized. For this purpose,benzothiadiazole (B) was used as the acceptor unit. Donor units, carbazole (C) and thioph...
Synthesis and investigation of optical properties of Ce3+, Dy3+, Eu3+ single doped, Ce3+/ Dy3+ codoped, Ce3+/Dy3+/ Eu3+ triple doped and Yb3+ single doped, Ce3+/Tb3+/ Yb3+ triple doped GDBO3
Taneroğlu, Oğuzcan; Yılmaz, Ayşen; Esentürk, Okan; Department of Chemistry (2020-10-23)
The effect of triple doping in photoluminescence has been investigated in recent years, and it could utilize the compounds in terms of some demands. The photoluminescence activity of the materials can be used for quantum c...
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