Now showing items 41-50 of 67
Ted and Karyn Hume Center for National Security and Technology
(Institute for Critical Technology and Applied Science (ICTAS), Virginia Tech, 2010)
Sensitive Detection of Pathway Perturbations in Cancers
Background The normal functioning of a living cell is characterized by complex interaction networks involving many different types of molecules. Associations detected between diseases and perturbations in well-defined ...
Investigating dielectric properties of different stages of syngeneic murine ovarian cancer cells
(American Institute of Physics, 2013-01-01)
In this study, the electrical properties of four different stages of mouse ovarian surface epithelial (MOSE) cells were investigated using contactless dielectrophoresis (cDEP). This study expands the work from our previous ...
Renewable Hydrogen Carrier — Carbohydrate: Constructing the Carbon-Neutral Carbohydrate Economy
The hydrogen economy presents an appealing energy future but its implementation must solve numerous problems ranging from low-cost sustainable production, high-density storage, costly infrastructure, to eliminating safety concern. The use of renewable carbohydrate as a high-density hydrogen carrier and energy source for hydrogen production is possible due to emerging cell-free synthetic biology technology—cell-free synthetic pathway biotransformation (SyPaB). Assembly of numerous enzymes and co-enzymes in vitro can create complicated set of biological reactions or pathways that microorganisms or catalysts cannot complete, for example, C<sub>6</sub>H<sub>10</sub>O<sub>5</sub> (aq) + 7 H<sub>2</sub>O (l) à 12 H<sub>2</sub> (g) + 6 CO<sub>2</sub> (g) (PLoS One 2007, 2:e456). Thanks to 100% selectivity of enzymes, modest reaction conditions, and high-purity of generated hydrogen, carbohydrate is a promising hydrogen carrier for end users. Gravimetric density of carbohydrate is 14.8 H<sub>2</sub> mass% if water can be recycled from proton exchange membrane fuel cells or 8.33% H<sub>2</sub> mass% without water recycling. Renewable carbohydrate can be isolated from plant biomass or would be produced from a combination of solar electricity/hydrogen and carbon dioxide fixation mediated by high-efficiency artificial photosynthesis mediated by SyPaB. The construction of this carbon-neutral carbohydrate economy would address numerous sustainability challenges, such as electricity and hydrogen storage, CO<sub>2</sub> fixation and long-term storage, water conservation, transportation fuel production, plus feed and food production....
Combinatory Finite Element and Artificial Neural Network Model for Predicting Performance of Thermoelectric Generator
Thermoelectric generators (TEGs) are rapidly becoming the mainstream technology for converting thermal energy into electrical energy. The rise in the continuous deployment of TEGs is related to advancements in materials, ...
Interdisciplinary Research and Innovation for A Sustainable Energy Future
(Institute for Critical Technology and Applied Science (ICTAS), Virginia Tech, 2010-01-20)
Towards the development of latent heat storage electrodes for electroporation-based therapies
(American Institute of Physics, 2012-08-22)
Phase change materials (PCMs) capable of storing a large amount of heat upon transitioning from the solid-to-liquid state have been widely used in the electronics and construction industries for mitigating temperature ...
2010 Doctoral Scholars Reception Presentation
(Institute for Critical Technology and Applied Science (ICTAS), Virginia Tech, 2010-09-02)
Intersections, Creativity, and Black Swans
(Institute for Critical Technology and Applied Science (ICTAS), Virginia Tech, 2013-05-30)