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Full-Text Articles in Physics
Functionalizing Carbon Nanotube Forests With 1,5-Diaminoaphthalene, Ben Pound, T. Shen
Functionalizing Carbon Nanotube Forests With 1,5-Diaminoaphthalene, Ben Pound, T. Shen
Ben Pound
Carbon Nanotube (CNT) Forests are vertically grown carbon nanotubes. They can be as tall as millimeters, with radii from less than one nanometer (single-walled) to tens of nanometers (multi-walled). Their high surface area to volume ratio provides a unique material system for biosensor applications. However, the CNT surface does not provide covalent bonding sites to many antibodies of interest. One approach is to attach linker molecules with aromatic rings via π-stacking to the CNT surface and activating the linker molecules to bind covalently to specific antibody molecules. Unfortunately, the conventional solution-based functionalization approach often leads to collapse of the CNT …
Functionalizing Carbon Nanotube Forests, Ben Pound, F. Shen
Functionalizing Carbon Nanotube Forests, Ben Pound, F. Shen
Ben Pound
A carbon nanotube forest is an array of carbon nanotubes vertically aligned and entangled. Because the aspect ratio of each tube can be more than 1000, the forest will greatly increase the number of potential binding sites on the surface for chemical and biological detector applications, if each bundle of tubes can be functionalized with specific molecules. The 1,5-diaminoaphthalene can be a versatile linker molecule for proteins. In this study, we characterize the concentration of 1,5-diaminoaphthalene in solvent by fluorescence spectroscopy. It appears, however, that the solvent collapses the carbon nanotube forest, resulting in no detectable fluorescence emission. Lithographically defined …
The Effects Of A Weak Alternating Magnetic Field On Glutamic Acid, Carston Work, Ben Pound
The Effects Of A Weak Alternating Magnetic Field On Glutamic Acid, Carston Work, Ben Pound
Ben Pound
There has been substantial research showing the effects of Extremely Low Frequency Electromagnetic Fields (ELF-EMF) on various properties of liquids, among the most notable being the acidity of a solution. ELF-EMFs have amplitudes typically measured on the scale of microteslas, and have frequencies comparable to the cyclotron frequency of the molecule its ionic form. It is hypothesized that the magnetic field changes the coordination of water, which in turn affects the pH of the solution. This is difficult to measure directly, but it can be measured by adding a molecule that can be detected by IR spectroscopy that is sensitive …
Two-Dimensional Electron Gases At The Surface Of Potassium Tantalate, Ben Pound
Two-Dimensional Electron Gases At The Surface Of Potassium Tantalate, Ben Pound
Ben Pound
No abstract provided.
Shaping Carbon Nanotube Forests For Field Emission, Ben Pound
Shaping Carbon Nanotube Forests For Field Emission, Ben Pound
Ben Pound
No abstract provided.