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Skip to Search Results- 1Almadhoun, Mahmoud
- 1Cao, Cong
- 1Charrunchon, Sookpichaya
- 1Chisholm, Roderick A.
- 1Cui, Xin
- 1Deng, Meijiao
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Fall 2009
This dissertation investigates the influence of surface heterogeneities on colloid deposition. First, deposition of colloidal particles on a nanofiltration membrane during cross flow membrane filtration was studied under different operating pressures and solution chemistries. An atomic force...
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Nano-scale studies of the assembly, structure and properties of hybrid organic-silicon systems
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Advancements in the field of electronics might be achieved by future molecular scale devices. Hybrid organic-silicon structures have the potential to overcome many challenges facing the use of molecules as devices while maintaining the ability to interface with traditional silicon technology. The...
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Spring 2011
In this thesis, measurement and analysis of colloidal forces between an atomic force microscope (AFM) probe and a topographically patterned substrate are reported. The energy between the patterned substrate and a smooth flat plate was characterized mathematically using Surface Element Integration...
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Understanding stability of water-in-diluted bitumen emulsions by colloidal force measurements
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Removal of emulsified water is a challenge in oil sands and heavy oil processing. The flocculation and coagulation of emulsified water droplets depend on the interactions between the water droplets covered mainly by asphaltenes and oil-contaminated fine solids. To quantitatively evaluate the...
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Nanolithography on H:Si(100)-(2 x 1) using combined Scanning Tunneling Microscopy and Field Ion Microscopy techniques
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This thesis reports on the combined techniques of ultra-high vacuum scanning tunneling microscopy (UHV-STM) and field ion microscopy (FIM). The apex structure of STM scanning tips correlates with their ability to yield highly-resolved images and to perform accurate hydrogen desorption on...
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Conductive Atomic Force Microscopy Study of Electron Transport Through Diazonium Derived Films and Mixed – Mode Bonded Layers on Gold and Carbon Surfaces
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For Molecular Electronics to become a viable replacement or complitment to current elec- tronic devices a fundamental understanding of device operation and functionality is needed. This work explores electron transport through diazonium derived molecular junctions via conductive atomic force...
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Exploring Atomic Force Microscopy To Probe Charge Transport Through Molecular Films And For The Development Of Combinatorial Force Microscopy
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Since the invention of the atomic force microscope (AFM), this technology has had profound implications in the study of material science and molecular biology. The ability to visualize and perform quantitative analysis of the nanoscale properties of surfaces has provided great insights into...
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Fall 2013
Gypsum supersaturation in process water is known to have detrimental effects on flotation performance of sulphide minerals. The motivation of this research is to develop a better understanding of the impact of gypsum supersaturation in process water on sphalerite flotation. For this purpose, this...