Ph.D. Theses: Recent submissions

  • Characterization of the effect of critical design parameters on the electrochemical performance of a lithium-sulfur battery 
    Can, Hatice Merve. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Lithium-sulfur (Li-S) batteries provides high theoretical specific energy and energy density and their performance is greatly sensitive to cell design as a result of the highly complex reaction and polysulfide shuttle ...
  • Design of novel alkali activated materials exhibiting adsorption performance and photocatalytic activity 
    Kaya, Kardelen. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Alkali activated materials (AAMs) are environmentally friendly alternatives to traditional cement binders with their comparable mechanical properties. Geopolymers are a subcategory of of AAMs and synthesized from ...
  • Modeling of nanoparticle-membrane interactions 
    Gül, Gülşah. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Understanding the toxicity behavior of NPs is of great importance to ensure efficient drug delivery to intracellular targets without causing cytotoxicity, to measure the long-term effects of nanoparticles (NPs), and to ...
  • Production of Taq I restriction and modification enzymes by using two different expression systems 
    Toksoy, Ebru. (Thesis (Ph.D)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 2000, 2000.)
    Taq I restriction-modification system has been cloned and expressed using two different expression systems. In the first system, Taq I restriction endonuclease was expressed as a fusion protein with the maltose-binding ...
  • Analysis of folding kinetics for simplified model proteins 
    Özkan, Ş. Banu. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2001., 2001.)
    The conformational stochastics of simplified model chains that show an apparent two-state kinetics was explored.. A fundamental question addressed in the present analysis is to understand if the folding takes place through ...
  • A process for the deterpenation of essential oils by extraction/adsorption/desorption using supercritical carbon dioxide 
    Eskinazi, Orli A. (Thesis (Ph.D.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1999., 1999.)
    The main purpose of this study was to establish a supercritical-fluid-aided process in order to enhance the quality of essential-oils products through the removal of the monoterpene (MT) hydrocarbons. The example oil chosen ...
  • Fermentation and recovery of EcoRI endonuclease using two different genetically engineered E.coli strains 
    Yıldır (Tamerler), Candan. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1997., 1997.)
    A small scale procedure developed for the purification of EcoRI restriction enzyme has been applied to two different overproducing E.coli strains. The final purification yields obtained are 1.3x105 U/g cells for E.coli ...
  • Fermentation characteristics of four genetically engineered Saccharomyces cerevisiae strains 
    Birol (Deniz), Gülnur. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1997., 1997.)
    The production of ethanol from starch has been investigated in four genetically modified Saccharomyces cerevisiae strains (YPG/AB, YA7, YPG/MM and YPB-G). Three of the four strains produce the Aspergillus awamori glucoamylase ...
  • Photocatalytic hydrogen production over ionic liquid coated semiconductors 
    Can, Elif. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2021., 2021.)
    The objective of this thesis is to develop active and stable dye sensitized and ionic liquid (IL) encapsulated photocatalysts for hydrogen production, and to investigate the roles of photocatalysts constituents on hydrogen ...
  • Dynamics of rising bubbles and stress measurements through birefringence in viscoelastic liquids 
    Eribol, Pınar. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2021., 2021.)
    Bubble dynamics in a viscoelastic liquid are studied to check the existence of a discontinuity in the terminal velocity that occurs at some critical bubble volume and cusp formation at the bubble tail and their relation ...
  • A study on co-free hydrogen production from hydrocarbons and COx elimination through pre-combustion 
    Eropak, Belkız Merve. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    The goal of this research study is to design and develop active, stable and selective alkali promoted Pt-based catalysts and activated carbon-based adsorbents for COx elimination to be used in CO-free hydrogen production ...
  • Development of microfluidic platforms for therapeutic purposes 
    Gençtürk, Elif. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2021., 2021.)
    This thesis describes the present state of the development and applications of microfluidic systems used in cell biology and analyses of experiments conducted with in house fabricated thermoplastic based microfluidic ...
  • Peptide drugs against antibiotic resistant bacteria 
    Alaybeyoğlu, Begüm. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2017., 2017.)
    Membrane active peptides have found great interest as drug candidates due to their unique mode of action and availability in nature. In the past 20 years, beta lactamase-mediated antibiotic resistance has become a lethal ...
  • Systems-level understanding of copper effect in Saccharomyces cerevisiae 
    Öç, Şebnem. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Copper is a crucial trace element for all living systems as it is required for the proper functioning of several biological processes. Copper homeostasis, which governs the mechanisms of copper uptake, delivery, utilization, ...
  • Knowledge extraction for organometallic perovskite solar cells from published data in literature 
    Odabaşı, Çağla. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Orgonolead halide perovskite solar cells (PSCs) have been attracted great attention in recent years. This rapid progress is due to excellent light absorption and charge-carrier mobilities of the perovskite materials besides ...
  • CO2 reforming of CH4 over structured Ni-based catalysts 
    Leba, Aybüke. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2017., 2017.)
    The aim of this study was to contribute to the development of an economical CDRM process requiring less amount of energy and utilizing cheaper, more active and more stable catalyst. For this purpose, the photocatalytic ...
  • Optimal resilient retrofit design of heat-exchanger networks 
    Konukman, Alp Er Şevki. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1996., 1996.)
    A new index, called Design Resiliency Index, which numerically indicates the size of feasible region in terms of uncertain source-temperature or flowrates for the fixed design parameters of a network structure, is proposed. ...
  • Computational and experimental investigations into the mechanism of functional motion in biomolecular systems 
    Fas, Ayşe Burcu Aykaç. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    The seemingly random fluctuations that proteins exhibit in their native states actually harbor major contributions from the global/cooperative motions they undergo during functional transitions. Computationally efficient, ...
  • A study on CO-free hydrogen production and adsorbent design for selective carbon dioxide removal 
    Başar, Melek Selcen. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    The aim of this research study was to design and construct a fuel processor prototype (FPP), to determine its optimum steady state operation conditions, to model its dynamic performance, and to design and develop high ...
  • Elastic network model based approaches for conformer generation and docking applications 
    Soner, Zeynep Kürkçuoğlu. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    The dynamic nature of proteins poses challenging problems in computational biology, especially in terms of conformational sampling and transitions. In this thesis, an Elastic Network Model (ENM)-based computational method, ...

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