A magnetic refrigerator exploits the magnetocaloric effect, which is broadly defined as the tendency of certain magnetic materials to change their temperature when placed in a magnetic field. There is a great interest in the commercialization of magnetic refrigerators due to the fact that they are significantly more environmentally friendly and energy efficient than common […]
C48-P: Distinguishing Between Cellular Respiration and Oxidative Stress Using Autofluorescence Spectroscopy in a Tissue-like Background
My project involves using laser autofluorescence spectroscopy paired with spectral phasor analysis, a biophysical technique, to distinguish metabolic changes in yeast cells. I have specifically focused on measuring changes associated with reduced nicotinamide adenine dinucleotide (NADH) and nicotinamide adenine dinucleotide phosphate (NADPH), which are metabolic cofactors associated with cellular respiration and oxidative stress, respectively. Their […]
A43-P: A System for Fluorescence-based Metabolic Sensing for Cells embedded in Collagen
Thomas Finn, Nick Mayer, and Dr. Urayama, with the help of Taylor Phillips, Bibek Dhakal, and the Department of Physics, elaborate on the next steps of metabolic sensing using autofluorescence in Saccharomyces cerevisiae, baker’s yeast. A turbid mixture of baker’s yeast cells in Phosphate-Buffered Saline was excited using a nitrogen-gas discharge laser with a 1-nm […]
C03-P: Studying Student Attitudes Towards Science and Astronomy in Introductory Astronomy Courses
Many college students whose majors do not pertain to a STEM sub-discipline (Science, Technology, Engineering and Mathematics) may only end up taking one science course in their entire undergraduate career. For many of these students, introductory astronomy is an interesting and popular choice. Professors of these courses often have the intention of improving their student’s […]
A21: Astronomical Approximations: Making Them Suck Less
Approximations are both a necessity and a bane to astrophysical research, especially on the issue of the Missing Matter Problem. On one end the numbers involved are literally too astronomically large to work with without approximations, but on the other end with such complicated and occasionally chaotic systems like galaxies they can royally ruin the […]
BRIII-01: Investigation of the Exchange Bias Properties of a Series of Fe Doped Mn2-xFexNi1.4Ga0.6 Heusler Alloys
We are investigating the effect of Fe doping on the magnetic and exchange bias properties of Mn2-xFexNi1.4Ga0.6. The parent compound, Mn2Ni1.4Ga0.6 (x = 0) exhibits a ferromagnetic phase transition near 300 K. The material also demonstrates interesting exchange bias properties. In this research forum presentation, the background information related to exchange bias will be discussed. […]
A25: Turning a Cell Phone into a Spectrometer
Spectrometers are large and very expensive devices that are not very portable. The aim of this project is to use a cell phone and a small device that attaches onto the camera and have it output and analyze a sample similar to how spectrometers do. There are many applications for a spectrometer including but not […]
A24: Developing Non-invasive Real-time Metabolic Monitoring Using Spectral Phasors on Autofluorescence
Spectral phasor analysis of NADH autofluorescence has been shown to be an effective approach to measuring cellular metabolism. Extending this technique to tissue samples offers a novel method for non-invasive, real-time monitoring of healthy and diseased states of tissue. However, complex light interactions within tissue offer a significant barrier to autofluorescence measurements. To characterize the […]
C65: Fast Quantum Control of 87-Rb Bose-Einstein Condensates: A Numerical Study
Bose-Einstein condensates (BECs) are systems of atoms at near absolute zero that exhibit quantum behavior. Consequently, BECs exist in a state of extremely low kinetic and heat energy. Any extra energy added to the system can destroy the BEC. As such, moving BECs quickly is a significant problem for experiments in quantum labs and applications […]
CSI-02: Transfer, Optimization, and Characterization of Cold Atoms in a Magneto-Optical Trap for Ultracold Physics Experiments
The general research area of my project is on experimental ultracold atom physics, primarily on Bose-Einstein condensates (BECs), with the objective of building an atomic transfer system necessary for a BEC experiment apparatus that is being built in Miami University. We use rubidium-87 atoms in our experiments, and part of the process of creating Rb-87 […]
You must be logged in to post a comment.