NADH is an optical metabolic indicator– a molecule we can use to monitor metabolism– because it is naturally occurring, it is involved in energy metabolism, and it fluoresces. NADH fluorescence depends on which protein to which it is bound. UV-excited autofluorescence spectroscopy is a technique used to measure the emission spectrum of excited biological substances. […]
C39:Developing a Non-Contact DCS System for Biological Tissue Scans
DCS measures light intensity fluctuations of blood flow in deep tissue as time passes between detection of each photon. Using fiber optic probes, a DCS system directs light from a laser into a tissue sample, and then into a single photon detector. When the laser hits the sample through the multi modal probe, light is […]
B43: Spin Equilibrium of Cobalt-Salen Complexes
Spin Crossover (SCO), or spin equilibrium, is a well-studied phenomenon in some metal complexes. This phenomenon occurs when changes such as heat, light, or pressure are applied to a metal complex, which the metal center responds by changing its spin state. The spin state of a metal center is the arrangement of its valence electrons, […]
A63: Non-invasive and Non-destructive Sensing for Food Quality Control Using Optical Spectroscopy
Developing nondestructive methods to evaluate food quality of agricultural materials play an important role in food safety and quality control. Being able to quickly, yet effectively assess the ripeness or condition of foods such as fruits and vegetables can help to prevent hazardous or over ripened food products from entering consumers’ shopping carts. One of […]
A13-T: Using Diffuse Reflectance Spectroscopy (DRS) to Observe the Development of Pressure Injuries
Pressure Injuries are a major concern in medicine, yet their origins and pathologies are relatively unknown. The origins of these issues are continually studied but they are relatively unknown and cost the healthcare industry millions of dollars each year. Low-cost alternatives include optical techniques, which have previously been used to study tissue sample compositions and […]
B45-P: Development of a Portable Diffuse Correlation Spectroscopy System for Tissue Flowmetry
Diffuse Correlation Spectroscopy (DCS) is a technique used in biomedical optics that uses collimated light — a laser — to explore flow rates in the body. Significant applications for DCS include analysis of rates associated with blood flow and cerebral spinal fluid, though DCS can be applied in many situations. DCS is an attractive technology […]
A14: Crown-ether appended Ortho-phenylenes with bound chiral guests
Many abiotic foldamers are composed of achiral parts but adopt chiral geometries, like helices. In these systems, there is no inherent preference for one handedness of the fold. Ortho-phenylenes are a class of aromatic foldamers that fold into helices driven by arene-arene stacking interactions. Although their folding is now reasonably understood, it is not clear […]
CSII-02: A Study of the Trends in the Radiative Lifetime of Na2
Spectroscopy is a field which has been instrumental in furthering our understanding of extraterrestrial bodies and molecular architecture. A commonly utilized technique in spectroscopic research is to measure the radiative lifetimes of excited states, as it has been demonstrated to be effective in understanding the molecular structures. Predictive calculations shared by colleague Dr. Seth Ashman […]
You must be logged in to post a comment.