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Ph.D. Theses: Recent submissions

Now showing items 1-20 of 51

Multifunctional monomeric and polymeric photoinitiators for free radical photopolymerization

Gençoğlu, Türkan. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)

In this study, novel polymerizable, polymeric and branched photoinitiators (PIs) were synthesized to attain high polymerization efficiency, migration stability, visible light absorption and water solubility to address ...
Molecular modeling of Bcl-xL post-translational modifications and of keteniminium salts

Tanrıver, Gamze. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)

Computational chemistry plays an important role in deciphering the structural proper ties of systems by using different approaches, such as quantum mechanics (QM) and molecular mechanics (MM) and gives insight by mimicking ...
Role of ionic liquids on the reactivity and selectivity of diels- alder reactions and single site catalysts

Akgül, Deniz. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)

Ionic liquids (ILs) have gained interest because of their features such as high thermal stability, high chemical inertness, conductivity, their ability to dissolve organic and inorganic substances. It is possible to tune ...
Redox-responsive biodegradable polymeric materials for biomedical applications

Çalık, Filiz. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)

In recent years, biodegradable and stimuli-responsive polymeric materials have gained importance in cancer research and biomedical applications. Such materials can be used as implants in the body and a nano-sized drug ...
(BIS) phosphonate functionalized polymeric materials for biomedical applications

Altuncu, Merve Seçkin. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)

This work describes synthesis, characterization, and evaluation of (bis)phosphonate functionalized monomers, macromers and crosslinkers as well as their polymers and crosslinked networks for biomedical applications such ...
Analysis of the radical polymerizability of diallyl monomers

Tüzün, Nurcan Şenyurt. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2002., 2002.)

In this study, the radical cyclopolymerization mechanism of diallylamine and diallyl ether monomers and their derivatives has been investigated by computational modeling. The calculations were performed by the Density ...
Synthesis of new dental adhesive monomers and polymers

Albayrak, Aylin Ziylan. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)

New phosphonate, phosphonic acid, carboxylic acid, iminodiacetate containing adhesive monomers based on alkyl-hydroxymethyl acrylates and their derivatives were synthesized. A new phosphonate-containing cyclic monomer was ...
TiO2 semiconductor photodegradation of substituted resorcinols: |kinetic and mechanistic studies

Ökte, Ayşe Neren. (Thesis (Ph.D.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1999., 1999.)

The photocatalytic degradation of 1,3-dihydroxybenzene (1,3-DHB) (resorcinol) and the substituted resorcinols, 3,5-dihydroxytoluene (3,5-DHT), 1,3-dihydroxy-5-methoxybenzene (1,3-DHMB) and 3,5-dihydroxybenzoic acid (3,5-DHBA) ...
Water soluble, low migration and visible light photoinitiators for greener photopolymerization

Eren, Tuğçe Nur. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2021., 2021.)

In this work, novel monomeric, polymeric and mesomeric (high enough molecular weight to provide lower migration but not high enough to be called a macromolecule) photoinitiators (PIs) were synthesized with the aim of ...
Barriers to enantiomerization of 1-(o-ARYL) barbituric and -2-thiobarbituric acid derivaties

Oğuz, Semin Funda. (Thesis (Ph.D.) - Bogazici University. Institue for Graduate Studies in Science and Engineering, 2002., 2002.)

In this study, 5,5-dimethyl-1-(0-aryl)barbituricI, 1-(0-ary1)barbituric and 1-(0-aryi)- 2-thiobarbituric acids have been synthesized by the reaction of the o-arylureas or the oaryl- 2-thioureas with the diethylmalonate or ...
Preparation characterization and drug release behavior of thermo-and pH-responsive hydrogels and microspheres

Taşdelen, Dinçer Betül. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2002., 2002.)

In the present work, N-isopropylacrylamide/itaconic acid and N-isopropylacrylamide /maleic acid copolymeric hydrogels were prepared by irradiating the ternary mixtures of Nisopl- opylacrylamide/diprotic acid moieties ...
Smart polymeric carriers :|targeted delivery of therapeutic agents

Karaçivi, Merve. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)

In cancer research, studies about polymer drug conjugates and targeted delivery of chemotherapy agents are gaining great attention due to their ability to enhance biodistribution profiles and improve efficacy of chemotherapy ...
Computational approaches to assess the binding properties of ligands :|the case of the NMDA receptor

Haşlak, Zeynep Pınar. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)

One of the important issues in drug design is the identification of the biological activity of receptor ligands. Development, synthesis and activity measurements of ligands have a major importance in drug design. However, ...
Stimuli responsive functional polymeric materials for biomedical applications

Demirer, Hatice Betül. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)

This work consists of synthesis, structural characterization and evaluation of stimuliresponsive functional polymers and hydrogels designed for biomedical applications. In the first project pH and redox responsive degradable ...
Design and fabrication of novel reactive hydrogels for delivery of therapeutic agents and biomolecular immobilization

Chambre, Laura. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)

Polymers have been widely used for the past decades as drug delivery systems owing to their attractive physical, chemical and mechanical properties. In this thesis, nanosized drug delivery systems were developed for the ...
Synthesis of mono/DI-[1-(2-anthryl)-1-phenylethylene] telechelic poly (methyl methacrylate), polystyrene, and polyisobutylene and related copolymerizations via photohemical reversible cycloaddition reactions

Özgüç, Çimen. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)

The synthesis of novel 1-(2-anthryl)-1-phenylethylene (APE) di-telechelic polyisobutylenes were done by the utilization of a difunctional cationic initiator and the in situ addition of the non-homopolymerizable APE monomer ...
Synthesis and reactions of thioureas, their cyclized derivatives and oxazolidindiones

Tunçel, Şenel Teke. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)

In this study, several single enantiomer thioureas were synthesized and converted to their cyclic derivatives: 2-imino-thiazolidin-4-ones and 5-benzylidene derivatives. The conformations of the thioureas were determined ...
A theoretical investigation of solvent effect on the conformational equilibria of 2-substituted cyclohexanone ketal derivatives

Sağ-Erdem, Safiye. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1995., 1995.)

The conformational equilibria of 6-substituted-1,4-dioxospiro-[4.5]decanes and 7substituted-1,5-dioxospiro [5.5]undecanes, relatively complex polar systems, with substituents X=-CH3, -F, -CI, -CN, -OH, -OCH3, -N02 have ...
Fabrication and functionalization of reactive polymeric coatings for biomedical applications

Gevrek, Tuğçe Nihal. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2017., 2017.)

The work in this thesis describes the design and synthesis of novel reactive polymeric coatings that can be utilized for fabrication of functional interfaces for applications like biosensing and protective antibacterial ...
Novel functional hydrogels and polymer coated magnetic nanoparticles with degradable linkers for biomedical applications

Aydın, Duygu. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2017., 2017.)

In this thesis, the design and fabrication of novel reactive interfaces such as hydrogels and polymer coated nanoparticles were investigated for applications related to the delivery of therapeutic agents. Randomly crosslinked ...

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