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- Modeling (4)
- Microfluid (2)
- Optical micropropeller (2)
- Optimization (2)
- Scanning electron microscopes (2)
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- Secondary electron trajectories (2)
- Adhesive hydrogels (1)
- Cobalt (1)
- Collagen-based (1)
- Colometric (1)
- Density functional theory (1)
- Dichalcogenide alloys (1)
- Drug delivery system (1)
- Electronic surface state (1)
- Gold (1)
- Graphene (1)
- Interdiffusion (1)
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- Ruthenium (1)
- Stem cell cultures (1)
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Articles 1 - 10 of 10
Full-Text Articles in Nanoscience and Nanotechnology
Fundamental Interdiffusion Analysis Of Ruthenium And Cobalt Films, Bartlet Deprospo
Fundamental Interdiffusion Analysis Of Ruthenium And Cobalt Films, Bartlet Deprospo
Nanoscale Science & Engineering (discontinued with class year 2014)
No abstract provided.
Gold Nanoparticle Colorimetric Sensing Technology, Eve Borden
Gold Nanoparticle Colorimetric Sensing Technology, Eve Borden
Nanoscale Science & Engineering (discontinued with class year 2014)
No abstract provided.
Development And Characterization Of Adhesive Hydrogels For Stem Cell Culture, Erin Byrne Rousseau
Development And Characterization Of Adhesive Hydrogels For Stem Cell Culture, Erin Byrne Rousseau
Nanoscale Science & Engineering (discontinued with class year 2014)
Pluripotent embryonic stem cells (ESCs) offer the unique capacity to differentiate into almost any cell type and have sweeping implications in both basic research and clinical applications. However, unregulated differentiation can cause issues, preventing ESCs from entering clinical research. In order to maximize ESC growth, three dimensional culturing has been utilized in order to have results more similar to in vivo conditions. In the case of alginate scaffolds, cell adhesion sites are missing from the matrix, leading to differentiation. We propose that the inclusion of adhesive polymer to the alginate scaffold will increase cell attachment and maintain pluripotency. The polymer …
Predicting Structures And Properties Of Transition Metal Dichalcogenide Alloys Using Density Functional Theory, Lucas R. Bruzgulis
Predicting Structures And Properties Of Transition Metal Dichalcogenide Alloys Using Density Functional Theory, Lucas R. Bruzgulis
Nanoscale Science & Engineering (discontinued with class year 2014)
Workflows for computationally simulating transition metal dichalcogenides using density functional theoretic methods and cluster expansion were established, as implemented in the Quantum ESPRESSO and Alloy Theoretic Automated Toolkit computer codes, respectively. Effects of energy cutoff values and k-point density on convergence of DFT results were investigated for the MoS2 structure, and theoretic band structure calculations for MoS2 and WS2 were performed. The MoXW(1-X)S2 alloy system was also investigated using the maps code in the Alloy Theoretic Automated Toolkit in order to generate a composition vs energy plot. The application of Special Quasi-random Structures to further research into TMDC alloy systems …
Graphene’S Electronic Surface States On Metal Substrates, Alex De Palma
Graphene’S Electronic Surface States On Metal Substrates, Alex De Palma
Nanoscale Science & Engineering (discontinued with class year 2014)
Graphene is a 2-‐D sheet of sp2 bonded carbon atoms with exceptional electrical properties. Particularly, graphene has a very high carrier mobility (~200,000 cm2/V·∙s). This is largely due to graphene’s unique electronic structure, wherein charge carriers are effectively massless Dirac fermions. However, the unique electronic structure of graphene has been shown to be affected by the underlying substrate. In this study, we characterize the electronic structure of graphene on copper. Electron energy loss spectroscopy is employed to observe the surface plasmon excitations of graphene. A small pi plasmon excitation is observed, suggesting that the graphene/Cu interaction is weak and non-‐covalent. …
Size Controlled Formation Of A Collagen-Based Drug Delivery System, Leonardo Bezerra
Size Controlled Formation Of A Collagen-Based Drug Delivery System, Leonardo Bezerra
Nanoscale Science & Engineering (discontinued with class year 2014)
This study investigates and troubleshoots various factors involved in the generation of collagen-based particles, such as volume of solution, temperature, and incubation time for the purposes of a potential colorectal cancer targeting drug vehicle. The particles were generated via loading into a gel mold and show a 20-200 fold decrease in size compared to those created only under chemical means.
Optimization And Modeling Of An Energy Harvesting Optical Micropropeller For Microfluidic Applications, Jacqueline Elwood
Optimization And Modeling Of An Energy Harvesting Optical Micropropeller For Microfluidic Applications, Jacqueline Elwood
Nanoscale Science & Engineering (discontinued with class year 2014)
The design and materials optimization of a optical micropropeller comprised of silver nanorods on a fused silica substrate was developed. A combination of surface plasmon resonance, thermophoretic and convective forces enable rotation of the micropropeller in an aqueous environment. This work aims to eliminate the dependence of optical micropropellers on the requirement for a light source by relying on a blackbody radiation energy harvesting principle. This energy harvesting principle is able to plasmonically excite noble metal nanorods of a specific aspect ratio at specific wavelengths that correspond to an ambient temperature. By investigating the dependence of the aspect ratio and …
Optimization And Modeling Of An Energy Harvesting Optical Micropropeller For Microfluidic Applications, Jerry Shih
Optimization And Modeling Of An Energy Harvesting Optical Micropropeller For Microfluidic Applications, Jerry Shih
Nanoscale Science & Engineering (discontinued with class year 2014)
Geometry for a plasmonically active micro-propeller is designed in Matlab using a Metallic Nano-Particle Boundary Element Method (MNPBEM) toolbox in order to predict its optical response in long wavelengths of electromagnetic radiation. Electric field maps are plotted to determine the feasibility generating torque using the energy harvesting principle. Results indicate electric field lines that would promote rotation and the scattering cross section would cause nano-rods sitting on the propeller to radiate thermal energy. COMSOL modeling is performed to model the evolution natural convection currents as a result of the nano-rod heating which is then optimized to further promote rotation of …
Modeling Secondary Electron Trajectories In Scanning Electron Microscopes, Kevin Mcnamara, Joshua Miller
Modeling Secondary Electron Trajectories In Scanning Electron Microscopes, Kevin Mcnamara, Joshua Miller
Nanoscale Science & Engineering (discontinued with class year 2014)
The efficiency of secondary electron collection by a scanning electron microscope detector is not generally known, particularly as the electric field on the detector is varied. It is often assumed that the detector collects almost all of the secondary electrons emitted from the sample. This works seeks to better understand the mechanism of secondary electron collection by the detector in order to optimize collection efficiency. The benefit of collecting more secondary electrons is the enhancement of the signal-to-noise ratio, which means better quality images can be obtained, allowing us to better understand the relationship between secondary electron images and the …
Modeling Secondary Electron Trajectories In Scanning Electron Microscopes, Joshua Miller, Kevin Mcnamara
Modeling Secondary Electron Trajectories In Scanning Electron Microscopes, Joshua Miller, Kevin Mcnamara
Nanoscale Science & Engineering (discontinued with class year 2014)
The efficiency of secondary electron collection by a scanning electron microscope detector is not generally known, particularly as the electric field on the detector is varied. It is often assumed that the detector collects almost all of the secondary electrons emitted from the sample. This works seeks to better understand the mechanism of secondary electron collection by the detector in order to optimize collection efficiency. The benefit of collecting more secondary electrons is the enhancement of the signal-to-noise ratio, which means better quality images can be obtained, allowing us to better understand the relationship between secondary electron images and the …