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 33 for “"Fourier transform infrared spectroscopy (FT-IR)"”.
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Evaluation of the antimicrobial properties and biocompatibility of polypropylene mesh conjugated with gold nanoparticles
… is commonly utilized as a patch for hernia repairs and for pelvic slings. However, biocompatibility and infection rates are a concern. Conjugating gold nanoparticles (AuNPs) to PP mesh may enhance biocompatibility while reducing infection rates. In this study we investigated the size and …
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Valorization of banana peels to obtain a bioplastic from acetylated starch
… are banana peels, which can be valorized to be transformed into bioplastic. The objective of this research is to develop a bioplastic film on a laboratory scale, from the starch extracted from banana peels using the acetylation method. To evaluate the quality of the bioplastic, six tests were …
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Design of reversible "smart" surfaces for biomedical and nanotechnological applications
… angle goniometry, ellipsometry, grazing-angle Fourier-transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), cyclic voltammetry (CV), sum-frequency generation spectroscopy (SFG), and atomic force microscopy (AFM). Chapter 2. A Reversibly Switching Surface The design of …
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Encapsulation of cobalt complexes in zeolite Y for use as hydroformylation catalysts
… methods (such as distillation) are required to remove them from the reaction products. These separation techniques usually lead to losses of the catalyst. From an economic viewpoint, this is highly undesirable since the catalysts (especially rhodium) are expensive. Research has been …
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Intrinsic Flexibility of West Nile Virus Protease: In Solution Characterization
West Nile virus (WNV) is a mosquito-borne flavivirus with a rapidly expanding global distribution. Infection can cause severe neurological disease and fatalities in humans. Efforts are ongoing to develop antiviral drugs that inhibit the WNV protease, a viral enzyme required for polyprotein …
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Oxidized mesoporous ZrO2/carbon composites for arsenic removal
… ZrO2/Carbon composites, determining the best air oxidation time, and comparing the adsorption performances of arsenate on oxidized mesoporous ZrO2/Carbon composites and unoxidized composites. The mesoporous ZrO2/Carbon composites were synthesized via a facile evaporation induced triconstituent …
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Development and thermal characterization of polydiacetylene (PDA) nanofiber composites for smart wound dressing applications
… the development of chromatic sensors due to their unique optical property of undergoing a chromatic transition from blue to red upon external stimuli. 10,12-Pentacosadiynoic acid (PCDA) and poly (ethylene oxide) (PEO) were used in this study to develop fiber composites via an electrospinning …
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An investigation of the hydrothermal stability and mineralisation of collagen and their relationship
… scattering (SAXS), X-ray Diffraction (XRD) and Fourier-Transform Infrared Spectroscopy (FT-IR). Differential scanning calorimetry (DSC) studies on demineralised tendon identified a previously unknown high temperature endothermic transition to be present in the thermal scan of both mineralised …
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Study on the performance enhancement of biomedical implants: in vitro test under UV irradiation of titanium anodised in mixed electrolyte
… elemental analysis using Energy-dispersive x-ray spectroscopy (EDX); mineralogical and crystal structure using x-ray diffraction (XRD); absorption analysis using Fourier transform infrared spectroscopy (FT-IR); and the hydrophilicity using water contact angle (WCA). TiO2 was then subjected in …
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Epoxy + Liquid Crystalline Epoxy Coreacted Networks
… of cure for both monomers was monitored by using Fourier transform infrared spectroscopy (FT-IR). The glass transitions were evaluated as a function of composition using DSC and dynamic mechanical analysis (DMA). The results show that the LC constituent affects the curing kinetics of the epoxy …
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Green Carbon Quantum Dots Based Electrochemical Sensors for Analysis of Neurotransmitters
… based quantum dots (CQs) were achieved through Fourier Transform infrared spectroscopy (FT-IR), UV-visible spectroscopy, x-ray diffraction spectroscopy (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The preparation of the banana peel precursor used for the …
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Development Of Novel Analytical Methods For Detection And Determination Of Tamoxifen In Oral Fluid And Discrimination Between Regioisomeric Aromatase Inhibitors For Doping Control Purposes
… (and the costs associated with acquiring and using this technology), a GC method remains advantageous. A calibration curve was created; the developed methods proved to be successful for the recovery and detection of Tamoxifen from artificial saliva samples with high sensitivity. </p> …
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Understanding the retardation of cement hydration caused by zinc
… or intentionally added to make the firing process of clinker more effective. Waste solidification/stabilization is another route through which heavy metals come in contact with cement paste or concrete. It has been reported extensively in the literature that some of the heavy metals …
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Polyhydroxyethers synthesis, analysis and crosslinking
… as to the best reaction conditions required to obtain the lowest amount of branching. The kinetics of crosslinking oligomeric epoxy resins with multifunctional isocyanates was also studied using Fourier transform infrared spectroscopy (FT-IR). The reaction was modeled by using phenyl …
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A study of functionalized iron oxide nanoparticles for selective recognition of kappa-casein: a breast cancer biomarker.
… breast cancer. In this research, functionalized iron oxide (Fe3O4) nanoparticles were used for selective recognition of kappa casein (kcn) a breast cancer biomarker. The Fe3O4 was synthesized by the co-precipitation method. The particles were then coated with a polyacrylamide film which was …
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Solubility Enhancement and Precipitation Inhibition of Poorly Water Soluble Compounds Utilizing Hot Melt Extrusion Technology
<p>Soluplus® (SOL), a graft amorphous copolymer, composed of polyethylene glycol, vinyl acetate and vinylcaprolactam in a ratio of 13: 30: 57, was utilized to prepare solid dispersions containing felodipine (FEL) or ketoconazole (KTZ) using hot-melt extrusion technology. The melting point …
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Understanding the role of slag on geopolymer hardening and microstructural development
… of modulus 1.25 keeping SiO2/K2O = 5.1. For the first time in this study, ultrasonic wave reflection method along with Proctor penetration were used to determine the stiffening rate of geopolymers and their results correlated well. Microstructural development was investigated using SEM/EDS while …
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PREPARATION AND EVALUATION OF MESOPOROUS SILICA NANOPARTICLES FOR PLATINUM-ACRIDINE ANTICANCER DRUG DELIVERY
… the basic and biomedical sciences. Because of their unique pore structures and physicochemical properties, MSNs have recently attracted major attention as an inert carrier material in oncology drug formulations. In this dissertation, MSNs were prepared and suitably functionalized to serve as a …
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Green synthesis of Europium (III) Oxide nanoparticles using Hibiscus sabdariffa flower extract
… methods. This ecological method has potential in transforming the inorganic metal ions into metal oxides NPs via the bio-reduction of molecules present in the particular organism. This contribution reports on the synthesis, the main physical and optical properties of Europium (III) oxide (Eu2O3) …
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Revealing Interfacial Reactions and Charge Transfer Kinetics in Electrochemical Energy Storage and Conversion
… and how they promote or suppress the desired reactions remain unclear. Furthermore, microscopic-level understandings of reaction mechanisms and electrochemical processes are still lacking, hindering the rational design of electrode-electrolyte interfaces to improve the performance of …
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