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 364 for “"Surface modification"”.
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Laser surface modification of steel
… presented work is an investigation of the laser surface modification of H13 tool steel using pulse laser processing mode. Initial screening experimental designs conducted lead to more optimised detailed designs. A carbon dioxide (CO2) laser system with 10.6 μm wavelength was used. In the …
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Laser surface modification of biomedical alloys
… investigated the effects of high speed laser surface modification on 316L stainless steel and Ti-6Al-4V for biomedical implants application. Laser processing was carried out in an inert argon environment using a 1.5 kW CO2 laser. Parameters investigated in this work included irradiance, …
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Development of Photochemical Surface Modification Technique
This thesis will investigate two main areas of surface modification research: I. Designing a photoactive monolayer with improved photo-grafting efficiency. II. Fabrication of NP-Films via phthalimide self-assembled monolayer on glass surfaces. Concluding the thesis, I will briefly describe an …
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Surface modification of titanium-based alloys
… OBDH process can be carried out to modify the surface properties of titanium and alloys. Both steps of this process play a vital role in achieving a thick modified layer for improved tribological properties of titanium and alloys. Performing the oxidation step of OBDH heat-treatment at higher …
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Surface modification of hydrogen-terminated silicon nanoparticles.
Abstract not available.
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Boron induced surface modification of transition metals
Boronizing is a thermo-chemical surface treatment of metals in which boron atoms diffuse into the metal substrate and form hard metallic borides. As a result of boronizing, several properties such as hardness, wear resistance, corrosion resistance, and high temperature oxidation resistance improve …
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Production and Surface Modification of Protein Microspheres
… per microsphere to be covalently linked to the surface of the albumin microspheres. A flow cytometry assay with KB cells, which express high levels of folate receptor, was unable to detect specific targeting of the microspheres under flow cytometry conditions.
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Heterostructures Prepared by Surface Modification of Nanocrystals
… still remains a challenge. Controlling surface moieties of individual NCs may be one of the most effective methods to tailor surface properties of particles to be compatible with other surrounding phases (e.g. polymer or metal oxide) that may be necessary and thus leading to robust and …
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Iron Oxide Nanoparticle Surface Modification: Synthesis and Characterization
… hydrothermal synthesis and modifying their surfaces with organic functional groups in order to both modulate surface chemistry and facilitate the attachment of molecules such as peptides via covalent bond formations. Modifying their surfaces with biomolecules such as peptides can further …
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Additively Manufactured Bioinspired Microstructures for Active Surface Modification
… actuators (DEAs) to realize voltage-driven surface tuning. The fabricated surfaces exhibited strong bonding, shape recovery, and tunable hydrophobicity. DEA-induced deformation enabled rapid, reversible wetting state transitions, achieving programmable droplet transport with high precision …
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Surface Modification of Spherical Particles with Bioactive Glycopolymers
… brush was able to precipitate 0.5 mg of WGA. Surface modification of poly(divinylbenzene) microspheres was performed using two different glycomonomers and various types of grafting techniques. “Grafting through” of a mannose-displaying glycomonomer yielded core-shell particles with densely …
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Titanium surface modification by oxidation for biomedical application
Surface modification is a process that is applied to the surfaces of titanium substrates in order to improve the biocompatibility after implanting in the body. Two methods were used in the present work: Anodisation and gel oxidation. Anodisation was performed at room temperature in strong mineral …
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Chemical Surface Modification of Polycarbonate to Increase Hydrophilicity
… polycarbonate and left a residual polymer on its surface. Alternatively, polycarbonate was submerged in poly(ethylene imine) (PEI) solution, heated, rinsed in DI water, and dried with air. Afterwards, polycarbonate was submerged in poly(acrylic acid-co-maleic acid) (PAA-MAA) solution, heated, …
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Surface Modification and Self-Assembly of Gold Nanostructures
This thesis describes self-assembly and surface modification of gold nanoparticles and nanorods. It begins with an efficient surface functionalization of gold nanoparticles with a liquid crystalline ligand that structurally resembles liquid crystal 5CB. Functionalized gold nanoparticles show …
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Surface Modification and Controlled Assembly of Molecular Materials
… specifically designed to bind at the growing surface. It was found that inhibitors had qualitative effects on the morphology and on the surface composition of the crystals and that the surface and bulk properties had potential to be modified independently. Copper-pyridine crystals were studied …
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Surface modification of polymer membranes by self-organization
… hydrophilic materials, as well as hydrophilic surface modification of hydrophobic membranes using coating and surface graft polymerization techniques. In many applications, the first approach results in unacceptable compromises in mechanical, thermal, and chemical stability. Coating and …
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Nanoscale surface modification of wood veneers for adhesion
Surface chemistry of wood is based on the exposed cut surface that is the combination of intact (lumen wall) and cut cell wall material. It is inherently complex and changes with history of processing. Modification of wood surface through noncovalent attachment of amine containing water soluble …
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