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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 23 for “"Organosilane"”.
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ATR-FTIR spectroscopy and Raman microscopy studies of organosilane diffusion and hydrolysis in PVC films.
Organosilanes are widely used to bond organic materials such as polymers to inorganic materials in polymer composites. However, the mechanism of adhesion is poorly understood. One postulated mechanism is the interdiffusion of the silane and polymer, along with condensation of the silane to form an …
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Development of organosilane-containing bioorganometallic compounds evaluated as antiparasitic agents against Plasmodium falciparum and Trichomonas vaginalis
… evaluation of new bioorganometallic organosilane-containing compounds based on thiosemicarbazone (TSC),quinoline and benzothiazole scaffolds. Selected thiosemicarbazone-containing ruthenium(II), rhodium(III) and palladium(II) metal complexes were also studied. The compounds were …
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Fabrication of nanostructured surfaces with well-defined chemistry using particle lithography
… and the diameters of spheres. Organosilane nanopatterns were fabricated using particle lithography combined with vapor deposition to regulate surface chemistry. Colloidal masks produced by particle lithography enable to control and direct the placement of nanoscopic residues of …
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Synthesis and Characterization of Mixed-Metal Phosphonates For Polymer Dielectric Composite Materials
… surface modifications have been achieved via organosilanes. While an excellent approach for preparing surface-modified oxides, hetero-condensation between the organosilane coupling molecule and the oxide leads to the formation of Si-O-M bonds, while homocondensation between two coupling …
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Engineering Principles to Design and Analyze Patterned Neuronal Cultures Using Multielectrode Arrays
… and spike waveforms. An epoxy terminated organosilane (3-gylcidoxypropyl trimethoxysilane) was used as an easy and reproducible protein linker that can produce a stable long-lasting cell pattern for the study of patterned network in vitro. Metal electrodes of MEAs were chemically modified …
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Molecular-Level Investigations Combining Nanoscale Lithography and Atomic Force Microscopy
… of latex or silica are dried on a flat surface. Organosilanes attach to surfaces by successive steps of hydrolysis and condensation. Nanoscopic amounts of water are required to initiate the hydrolysis step of the reaction, if too much water is present the molecules cross-link to form polymer …
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Development and implementation of nanoscale materials in engineering applications
… which C60 is attached to a SiO2 surface via the organosilane, N1-[3-(trimethoxysilyl)-propyl]diethylenetriamine. The surface made was exposed to contact angle measurement and X-ray photoelectron spectroscopy (XPS) to determine the status of the functionalization. Contact angle measurement …
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Flexible and Versatile Soft Templates for Mesoporous Silicas and Organosilicas Based on Pluronic Block Copolymer Surfactants and their Mixtures
… variety of organosilica nanotubes with different organosilane precursors. Chapter 6 discusses the synthesis of microemulstion v droplet-templated silica and organosilica nanospheres of large size. The dissertation end with same conclusions.</p>
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Formation of in-plane crystals of molecular organic semiconductors
… This work initially evaluates the influence of organosilane SANFs on morphology and field-effect transistor performance. It then attempts to use lithographically-defined surface relief to orient pentacene and tetracene grains via graphoepitaxy during thin film deposition. The periodic surface …
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Acoustic biosensing using functionalised microbubbles
… $\sim$ 10 to 6 MHz. Nearly monodispersed silica-organosilane-silica microbubbles are fabricated with radii in this range, using a core-shell technique. The synthesis method enables excellent control of size distribution and shell thickness of the microbubbles, which can be tailored for maximum …
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Amino acid-derived imidazolium salts: platform molecules for N-Heterocyclic carbene metal complexes and organosilica materials
… and co-condensation of the corresponding organosilane. The co-condensation technique harbours potential for the production of solid-support catalysts.
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Scanning Probe Investigations of Magnetic Nanoparticles, Protein Binding and the Synthesis of Rare Earth Oxide Nanoparticles Using Nanoscale Lithography
… using particle lithography combined with organosilane chemistry. Biological and inorganic nanomaterials can be patterned with tailorable periodicities, which can be controlled by selecting the diameter of mesospheres used as surface masks. The surface platforms of well-defined nanopatterns …
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Antifouling and Antithrombogenic Ultrathin Surface Chemistry for Bioanalytical and Biomedical Applications
… platforms featured dual-functional, binary organosilane surface chemistry on quartz combining high analyte binding capability (for biorecognition) with pronounced antifouling properties (to minimize the otherwise overwhelming interference signal from the biological matrix). Clinical testing …
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Investigation of an alternative sulfonated silane in ceramic carbon electrodes for fuel cell applications
… replaced with a more ion conductive sulfonated organosilane monomer component. TPS was replaced with 4-(2-(trihydroxysilyl)ethyl) benzenesulfonic acid (TEBS) and mixed with TEOS and compared to the previous TPS/TEOS system as well as the traditional Nafion ionomer electrode. The sulfonated CCEs …
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Investigation of plasmaion vapor deposition (IVD) hybrid coatings for corrosion protection and plasma destruction of oral bacteria
… or air in order to create an oxide layer before organosilane coatings are applied for stronger corrosion resistance. TMS plasma coating did not cause contamination to IVD. Likewise, the application of IVD in
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Investigation of solution-phase and on-chip binding of C-reactive proteins and antibodies
… oxide substrates implemented using the organosilane APTES and the subsequent binding of CRP antigen to this immobilised CRP antibody was explored. The binding event of CRP antigen to surface immobilised CRP antibody was electrically characterised in ambient conditions. The formation of …
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Elastomeric Stamping: Design Considerations for Long -Term Maintenance of Neuronal Networks
… to examine the structure and organization of the organosilane surfaces. Long-term film stability was evaluated using ellipsometry and static water contact angles. As a biological assay, B104 neuroblastoma cells were plated on microstamped glass coverslips. Results indicated that the stamping and …
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Directed Self-Assembly of Polymer-Decorated Nanoparticles
… reactivity on nanoparticles using a mixture of organosilane monolayers. These surfaces have the unique ability to react with azide-terminated materials through the well-known copper catalyzed azide alkyne cycloaddition `click' reaction. We also put to use a new method to ensure that the mixed …
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Critical considerations in development of mesoporous silica nanoparticles for biological applications.
… introduction of hydrophilic and hydrophobic organosilanes and hydrothermal treatment are key to synthesize ultrastable and redispersible mesoporous silica nanoparticles. Chapter Three examines the cytotoxicity of mesoporous silica nanoparticles to human RBCs, mouse mast cells, and human …
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Viscoelastic and fracture behaviour of polyolefin based nanocomposites
… were positively affected by the presence of the organosilane on the surface of the nanoparticles. Tensile impact tests confirmed the enhancement of the fracture toughness provided by the nanoparticles. The application of the Essential Work of Fracture (EWF) approach led to the conclusion that the …
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