Conjugated Dye in Charged Environments
Poster Number
18
Format
Poster Presentation
Faculty Mentor Name
Sylvio Rodriguez
Abstract/Artist Statement
We study the aggregation of a conjugated organic dye in aqueous solutions of different ionic strengths as a function of temperature. These experiments are important for many reasons, including their application as fluorescent cellular tags. However, the aggregation of such dyes convolutes their molecular absorbance spectrum and, thus, their effectiveness as biological markers. The thermodynamics of aggregation (t.G, the driving force; t.H, the heat of reaction; and t.S, the possibility of converting any heat given-off in a reaction into useful work for the system) yields clues about the types of interactions causing this reaction. This data allows for better characterization of such compounds so as to improve their function in a number of charged environments. A Varian Cary Bio UV-Visible spectrophotometer and DATAN (DATa Analysis) 3.1 software package were used to study the spectra.
Location
Wendell Phillips Center, 1st floor hallways
Start Date
3-5-2008 1:00 PM
End Date
3-5-2008 3:00 PM
Conjugated Dye in Charged Environments
Wendell Phillips Center, 1st floor hallways
We study the aggregation of a conjugated organic dye in aqueous solutions of different ionic strengths as a function of temperature. These experiments are important for many reasons, including their application as fluorescent cellular tags. However, the aggregation of such dyes convolutes their molecular absorbance spectrum and, thus, their effectiveness as biological markers. The thermodynamics of aggregation (t.G, the driving force; t.H, the heat of reaction; and t.S, the possibility of converting any heat given-off in a reaction into useful work for the system) yields clues about the types of interactions causing this reaction. This data allows for better characterization of such compounds so as to improve their function in a number of charged environments. A Varian Cary Bio UV-Visible spectrophotometer and DATAN (DATa Analysis) 3.1 software package were used to study the spectra.