Browsing Dissertations & Theses by Title
Now showing items 102-121 of 192
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OSTEOGENIC DIFFERENTIATION IN PREOSTEOBLAST MC3T3-E1 CELLS INDUCED BY BETA TRICALCIUM PHOSPHATE BIOGLASS COMPOSITE
(2016-08-12)The use of bioactive material from bioceramic and composite components to support bone cell and tissue growth is an interesting area of medical field. Calcium phosphate ceramics are biocompatible and may develop interactions ... -
OSTEOPROGENITOR CELL ADHESION AND GROWTH ON THE BIOACTIVE SILICON NITRIDE SURFACE FOR CRANIOFACIAL IMPLANTS APPLICATIONS
(2018-04-27)As a novel biomaterial, silicon nitride (Si3N4) has been used for orthopedic and spinal fusion applications. Its ability to promote continuity for structural support of missing bone, by in/on bone growth, gives it advantageous ... -
Performance Qualification And Raman Investigation On Cell Behavior And Aging Of LiFePO₄ Cathodes In Lithium-ion Batteries
(Materials Science & Engineering, 2013-07-22)This thesis explores the ability of Raman spectroscopy to understand the complex chemistry taking place in LiFePO₄ cathodes of Li ion batteries. The performance of Li ion batteries was optimized through electrode fabrication ... -
Photoelectrochemical Activity Of Titanium Dioxide Thin Films
(Materials Science & Engineering, 2013-07-22)Titanium dioxide (TiO2) is considered as an oxide semiconductor with several unique properties, including environmental sensing capabilities, biocompatibility and photocurrent generation, long-term stability, cost ... -
PHYSICAL MODELING OF FILAMENT GROWTH AND RESISTIVE SWITCHING IN METAL OXIDE-BASED RRAM
(2022-12-15)Metal oxide-based resistive random-access memories (RRAM) exhibit several excellent performances, such as nanosecond switching speed, large write-erase endurance, and long retention time, and can potentially replace the ... -
Piezoelectric Analysis For Hetrogeneous Medium
(Materials Science & Engineering, 2007-08-23)In the recent years, several types of piezocomposites have been fabricated since they have provided material properties superior to conventional piezoelectric materials. In order to design these composites, it is essential ... -
Piezoelectric Micropump For Drug Delivery Application
(Materials Science & Engineering, 2007-08-23)Bending type actuators providing high displacement (~1mm) with low blocking force (~0.5N) and the stack actuators providing low displacement (~1m) with high blocking force (~1kN) represent the extreme ends of ... -
Plasma Electrolytic Oxidation of Pure Titanium at Constant Applied Voltage
(2021-12-20)Plasma Electrolytic Oxidation (PEO) is a method of coating which is used to apply non metal coatings to different metal substrates. This process occurs in an electrochemical cell that consists of an electrolyte, two ... -
Plasma Electrolytic Oxidation of Titanium Under Constant Applied Voltage
(2020-06-08)Plasma Electrolytic Oxidation (PEO) is a method capable of applying nonmetallic coatings to metallic substrates submerged in electrolyte via a plasma development under high voltage. The PEO technique is particularly useful ... -
Plasmonic Nanostructures For Surface-enhanced Raman Spectroscopy
(Materials Science & Engineering, 2014-09-17)In the last three decades, a large number of different plasmonic nanostructures have attracted much attention due to their unique optical properties. Those plasmonic nanostructures include nanoparticles, nanoholes and metal ... -
Preparation And Characterization Of Doped Zinc Oxide
(Materials Science & Engineering, 2007-08-23)Cathodic electrodeposition was used to prepare thin films of ZnO doped with Cd, from oxygenated KCl electrolyte containing ZnCl2 and CdCl2 in various molar ratios ranging from 0 mM to 5.0 mM each. Evidence for doping was ... -
Preparation And Characterization Of Properties Of Electrodeposited Copper Oxide Films
(Materials Science & Engineering, 2008-04-22)Copper oxides, including cuprous oxide and cupric oxide, are prepared by electrochemical deposition. The structural, optical and electrical properties of as-deposited copper oxides are evaluated, based on which cuprous ... -
PRINCIPLES, DESIGN, FABRICATION, AND CHARACTERIZATION OF SUBWAVELENGTH PERIODIC RESONANT METASURFACES
(2020-11-24)Since the emergence of diffraction gratings containing periodic unit cells, innumerable advances in theoretical studies and practical applications have emerged. Recently, these classic structures have been categorized as ... -
PROCESSING BETA-TRICALCIUM PHOSPHATE AND 45S5 BIOGLASS MIXTURES FOR OSTEOGENIC BONE TISSUE SCAFFOLDS
(2017-08-18)A 30% 45S5 Bioglass and 70% -tricalcium phosphate ceramic mixture, which was previously shown to be osteogenic [1], was sintered and the process was investigated as a strengthening mechanism. Samples were sintered for dwell ... -
Properties Of Concrete With Tire Derived Aggregate And Crumb Rubber As A Ligthweight Substitute For Mineral Aggregates In The Concrete Mix
(Materials Science & Engineering, 2012-07-25)Scrap tires continue to be a nuisance to the environment and this research proposes one way of recycling them as a lightweight aggregate which can substitute for mineral aggregates in concrete. Aggregates derived from scrap ... -
Pulsatile Protein Release From A Thermoresponsive Hydrogel: Effect Of Device Architecture, Nanoparticle And Polymer Concentration Using Factorial Analyses
(Materials Science & Engineering, 2012-04-11)A pulsatile thermo-responsive drug delivery device for wound healing applications was developed in this study and its drug release during 24 hours of thermal cycling was characterized. The device consisted of a temperature ... -
QUANTITATIVE ANALYSIS OF MINERAL/MATRIX TO EVALUATE GENETICALLY ALTERED BONE WITH INFRARED SPECTROSCOPY AND X-RAY SPECTRAL IMAGING
(2018-05-22)This thesis focuses on the characterization of bone with the help of Fourier Transform Infrared Spectroscopy and Energy Dispersive Spectroscopy. Such analysis of the physics and chemistry of biomaterials is vital to resolve ... -
Reproductive Numbers for Periodic Epidemic Systems
(2016-08-09)When using mathematics to study epidemics, often times the goal is to deter- mine when an infection can invade and persist within a population. This can be done in a variety of ways but the most common is to use threshold ... -
Role Of Engine Age And Lubricant Chemistry On The Characteristics Of EGR Soot
(Materials Science & Engineering, 2014-03-12)Exhaust products of Diesel Engines serves as an environmental hazard, and to curtail this problem a Tier 3 emission standard was introduced which involves change in engine designs and introduction of EGR systems in ... -
Room-temperature Single-electron Devices Based On Cmos Fabrication Technology
(Materials Science & Engineering, 2009-09-16)Single-electron devices, in which the transport and storage of individual electrons is precisely controlled, have many potential benefits in the field of electronics, optics, and sensors. Fabrication of these devices ...