Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 62 for “"FT-IR-Spectroscopy"”.
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Computational methods for cancer diagnosis and prognosis from FT-IR spectroscopy data
… pathology using fourier transform infrared (FT-IR) spectroscopy imaging. We employ tissue microarrays (TMAs) to record IR imaging data and adopt elaborated computational and analytical algorithms and statistical methods to recognize patterns and to construct robust systems. We firstly suggest …
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FT-IR spectroscopy technology, market evolution and future strategies of Bruker Optics Inc.
… explores the technology and market evolution of FT-IR spectroscopy over its nearly forty year history to aid in determining future product design and marketing strategies for an industry-leading firm, Bruker Optics. As a benchmark, a universal performance metric was developed that combined key …
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A study of FT-IR spectroscopy for the identification and classifcation of haematological malignancies
… in this thesis was to explore the use of FT-IR spectroscopy, as a complementary clinical tool for haematological laboratory analysis. FT-IR spectra were measured from air-dried and frozen cell lines derived from lymphoma, lymphoid, myeloid leukaemia and normal and chronic lymphocytic …
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Immobilization of Ru(bpy)(3)(2+) for Electrogenerated Chemiluminescent Sensors and Application of Interdigitated Array Electrodes in Transmission Ft-Ir Spectroscopy
… of water contents using infrared difference spectroscopy. Results demonstrate a complex role for water in mediating the polyanion-cation interactions.
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Photolyase: Its Damaged DNA Substrate and Amino Acid Radical Formation During Photorepair
… a light-activated enzyme, catalytically repairs these lesions. Although many steps in the photolyase-mediated repair process have been mapped, details of the mechanism remain cryptic. Difference FT-IR spectroscopy was employed to obtain new mechanistic information about photorepair. Purified …
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Iron Oxide Nanoparticle Surface Modification: Synthesis and Characterization
… of different nanomaterials’ properties and their customization for specific medical applications has therefore been a significant area of interest within the scientific community. Iron oxide nanoparticles, specifically those based on iron (II, III) oxide (magnetite, Fe3O4), have been …
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Synthesis and characterization of metal complexes 2-Benzoylpyridene and di-2-pyridyl ketone schiff base ligands derived from s-methyldithiocarbazate fragment and its application to biological activity toward P.Falciparum
… (II), zinc (II), cadmium (II), nickel (II), iron (II) and cobalt (II). The ligands, HL1 and HL2 were synthesized by an acid catalyzed condensation reaction of s-methyldithiocarbazate with 2-benzoylpyradine and di-2-pyradylketone respectively. The reaction of metal salts with the resultant …
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Study of controlled release of dapsone from modified montmorillonite and polymer matrices
… into sodium montmorillonite (MMT-Na+) and their combination with an anionic copolymer (Eudragit S100). The effects of the excipients on the API dissolution rate were studied from their release profile in simulated intestinal fluid (pH=7.4) at 37+/-0.5 C. In the first part of the research, …
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Investigative study of long-term packaging effects and donor characteristics on acellular dermis scaffolds
… engineering and medical applications, such as soft tissue augmentation, skin and vascular grafts, engineered scaffolds, and hernia repair materials. Before tissue sources can be utilized commercially for these practices they usually are decellularized, i.e., have all cellular and nuclear material …
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Synthesis and characterization of thermo-responsive polyethers
… derivatives have gained much interests due to their thermo-responsive properties. Thermo-responsive random copolymers of glycidyl methyl ether (GME) and epoxyhexane (EH) were synthesized. Once their properties were studied, they were grafted onto hyaluronic acid to obtain gelation at temperatures …
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The cure of and moisture ingress into epoxy resins
The first aim of this project was to characterise the cure of several epoxy resin systems using dielectric spectroscopy, DSC, FT-IR spectroscopy and rheology measurements. It was hoped to build up an understanding of the cure process and correlate the results produced by the different methods to …
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Study of Neem bark tannins for the leather industry
Necin bark (1zadirach1a indica) contains a mixture of complex chemical components identified as: One procyanidin trirner Four dimers Cl Epicatechin-[4a-8j-epicatechin epicatechin. B1 Epicatechin- [4[3-8]-catechin, B2 Epicatechin- [43-8]-epicatechin, B3 Catechin-[4ct-81-catechin, B4 …
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Design, synthesis and characterization of water soluble heterobimetallic complexes and their evaluation as aqueous biphasic hydroformylation catalysts
… analytical techniques including 1H NMR, 13C NMR spectroscopy, FT-IR spectroscopy, mass spectrometry and elemental analysis. In addition, mononuclear and heterobimetallic complexes were also synthesised as precursors to dendritic DAB-G1 structures. These were found to be water-soluble and they …
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Direct conversion of chemical energy to mechanical work using a phosphate charged protein
… the sliding filament system is taken as a fairly effective model. For engineering systems, the energy lost to heat needs to be reduced to build an efficient energy converter. In our research, we use a phosphate charged protein, casein, and react it with divinyl sulfone (DVS) through a Michael …
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Chitosan-Cellulose Nanocrystal Polyelectrolyte Complex Particles: Preparation, Characterization, and In Vitro Drug Release Properties
… nanoparticles with sulfate groups on their surface, have potential applications in oral drug delivery. The purpose of this research was to develop an understanding of the formation and properties of chitosan–cellulose nanocrystal PECs and determine their in vitro drug release properties, …
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Adhesion and Durability of Coatings on Polypropylene Exterior Sidings
… even plastic siding must be coated. The requirements of a coating for siding are good adhesion, durability, and a suitable appearance. However, polypropylene, like many plastics, has a low surface energy, making wetting and coating adhesion difficult.</p> <p>One of the many ways to increase …
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UV stabilisation of poly(ethylene terephthalate)
… by UV-VIS spectrophotometry, 1H NMR spectroscopy and DSC to demonstrate and quantify successful incorporation of the UVAMs into the polymers. PET copolymer films containing 3-[4-(4,6-diphenyl-1,3,5-triazin-2-yl)-3- hydroxyphenoxy]-1,2-propanediol (32), …
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Inkjet printing of resistive-type humidity sensor for harsh environments
… resistive-type humidity sensor for harsh environments is successfully designed and fabricated by an inkjet printing method using a Dimatix materials printer (DMP-2800 series from Fujifilm). Construction of the sensors is based on inkjet printed interdigitated silver electrodes on a polyimide …
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Biochemical and physiological analysis of microvesicle subtypes
… of existing protocols, demonstrated for the first time within this thesis, resulting in an up-to-date and greatly improved series of techniques for the analysis of microvesicles. Application of these techniques revealed two distinct subtypes of MVs that can be collected from the same parent …
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Ft-Ir Study of the Dynamics of Entangled Polymer Melts
… using polarized Fourier-Transform infrared (FT-IR) spectroscopy. Based on the reptation model, the motion of a chain in the presence of topological entanglements is that of a one dimensional random walk along the chain contour. This motion allows the end portions of the chain to escape the …
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