Theses - Graduate Program in Materials Science and Nanotechnology
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Synthesis of silica-based nanomaterials and their applications in fluorescent, biological and chemical sensing
(Bilkent University, 2018-06)This thesis describes development of nanoparticle-based liquid sensors and coatings for droplet-based bioassays. Liquid sensors were produced from mesostructured (2-50 nm) hybrid silica nanoparticles. Detection of trace ... -
Spatiotemporal nonlinear dynamics in graded-index multimode fibers
(Bilkent University, 2018-05)Spatiotemporal pulse propagation in multimode fibers is generally considered as chaotic. Graded-index multimode fibers reduce the complexity due to its equal spacing of the modal wave numbers which also introduces a ... -
Graph theory to study complex networks in the brain
(Bilkent University, 2018-05)The brain is a large-scale, intricate web of neurons, known as the connectome. By representing the brain as a network i.e. a set of nodes connected by edges, one can study its organization by using concepts from graph ... -
Manipulation of particles using inertial microfluidics and viscoelastic fluids
(Bilkent University, 2018-03)Recent years have witnessed an elevated trend in using miniaturized and labon- a-chip systems in biomedical devices due to numerous advantages including minimal sample/reagent consumption, portability, and superior ... -
A synthetic biology approach for engineered functional biofilm
(Bilkent University, 2018-01)Extracellular polymeric substances consist of molecules, DNAs, carbohydrates, and proteins that are secreted by microbial biofilms. These molecules assist in the synthesis of bacterial biofilms as highly ordered, complex ... -
Enhancing light extraction efficiency of InGaN/GaN multi quantum well light emitting diodes with embedded two dimensional photonic crystal structures
(2010-08)Advance in the growth methods of III-Nitrides and researches in order to eliminate doping problems of gallium nitride (GaN) resulted in high band gap materials with increased crystal quality which have led to tremendous ... -
Effect of triboelectric charges on friction and wear of polymers at macro scale
(Bilkent University, 2017-12)The interest towards the study of underlying mechanism behind tribology has gained enormous attention recently since almost one-fourth of the total produced global energy is consumed by friction and wear. Dry sliding or ... -
Developing synthetic biology enabled whole cell biosensors
(Bilkent University, 2017-12)Main causative agent for environmental pollution is human activities. Especially with accelerated industrial improvements, many inorganics such as heavy metals or hazardous organic toxic materials are released to the ... -
Investigation of new polymorphs of borophene and their functionalization
(Bilkent University, 2017-12)The realization of buckled monolayer sheets of boron (i.e., borophene) and its other polymorphs has attracted signi cant interest in the eld of two-dimensional systems. Motivated by their chameleonic behavior we analyzed ... -
The mechanical characterization of two-dimensional materials (WS2, MoS2, and graphene) and the effect of defects on young`s modulus of CVD grown single-layer graphene
(Bilkent University, 2017-11)With the first isolation of graphene two-dimensional (2D) materials attracted the enormous interest of many researchers. Owing to extraordinary properties and atomic thickness 2D materials have many applications in gas ... -
Synthesis and characterization of Van Der Waals heterostructures, and nanofabrication of electronic devices based on two-dimensional materials
(Bilkent University, 2017-12)Last two decades have seen a phenomenal shift of the dimensionality paradigm in materials processing, from zero-dimensional nanoparticles and quantum dots to one-dimensional nanowires and nanotubes, to two-dimensional ... -
Investigating the effect of catalysts in sodium-oxygen batteries
(Bilkent University, 2017-12)The unique electrochemical and chemical features of sodium oxygen (Na-O2) batteries distinguish them from the lithium-oxygen (Li-O2) batteries. NaO2, which is the main discharge product, is unstable in the cell environment ... -
A synthetic biology approach for nanomaterial design, synthesis and functionalization
(Bilkent University, 2017-11)Biological formation of inorganic material occurs in most organisms in nature. Various biomolecules such as polypeptides, lipids and metabolites are responsible for biomineralization in cells and tissues. Biological synthesis ... -
Optimization of sample preparation methods for the mechanical characterization of tissue architectures
(Bilkent University, 2017-11)There is now mounting evidence that mechanical signals are as crucial as genetic and biochemical feedback mechanisms for directing and organizing complex cellular behaviors, and material characterization tools are routinely ... -
Characterization of self-assembly and self-healing of peptide amphiphiles by atomic force microscopy
(Bilkent University, 2017-11)Biological feedback mechanisms exert precise control over the initiation and termination of molecular self-assembly in response to environmental stimuli, while minimizing the formation and propagation of defects through ... -
Synthetic cellular systems for whole cell biocatalysis
(Bilkent University, 2017-10)Synthetic biology is a field utilizing basic science and engineering approaches to create novel synthetic systems. Biocatalysis is one of those already existing processes which was reviewed intensely due to its advantages ... -
Affinity of glycopeptide nanofibers to growth factors and their effects on cells
(Bilkent University, 2017-09)The development of scaffolds for growth factor delivery is a promising approach for tissue regeneration applications due to their crucial roles during regeneration. Growth factor secretion and interactions with glycosaminoglycans ... -
Triboelectric nanogenerators : biomechanical energy harvesting, self powered sensor and wearable applications
(Bilkent University, 2017-09)One of the biggest challenges ahead massive advancement of electronic tech-nology is increasing energy consumption. A closer consideration on draining of fossil reserves and rapid development of wearable and portable ... -
Boronic acid conjugated peptide amphiphile systems for controlled drug release
(Bilkent University, 2017-09)Targeted cancer drug delivery is still under investigation and scientists have been focusing on major differences between healthy and cancer tissue to develop novel effective therapies. The cancer microenvironment has ... -
Atomic layer deposition of III-nitrides and metal oxides : their application in area selective ALD
(Bilkent University, 2017-09)III-nitride compound semiconductor materials (GaN, AlN, and InN) and their alloys have generated significant interest in both basic research and commercial applications mainly in the field of photonics, energy storage, ...
