Detection of nitroaromatic explosives using fluorescent porphyrins entrapped in silica sol-gel matrix
Faculty Mentor(s) Name(s)
Dr. Catrena H. Lisse
Abstract
There is a great need for a reproducible and reusable method for the detection of nitroaromatic explosives and various precursors for many industries, especially homeland security. Fluorescent porphyrin molecules immobilized within silica sol-gels were synthesized and used to study the binding of various nitroaromatics, including 2,4-dinitrophenol, 2,4,6-trinitrophenol, and 1,3-dinitrobenzene. Free-base meso-tetrakis-4-carboxyphenyl porphyrin (H2TCPP) was entrapped within silica sol-gels during the polycondensation process. The interaction of the porphyrin with nitroaromatics, the porphyrin functionality, and the structural integrity of the doped sol-gels were examined using fluorescence and ultraviolet/visible (UV-Vis) spectroscopy. The experimental methodology and preliminary results of the study will be presented.
Start Date
27-3-2024 10:00 AM
End Date
27-3-2024 10:50 AM
Location
Magnolia Ballroom
Detection of nitroaromatic explosives using fluorescent porphyrins entrapped in silica sol-gel matrix
Magnolia Ballroom
There is a great need for a reproducible and reusable method for the detection of nitroaromatic explosives and various precursors for many industries, especially homeland security. Fluorescent porphyrin molecules immobilized within silica sol-gels were synthesized and used to study the binding of various nitroaromatics, including 2,4-dinitrophenol, 2,4,6-trinitrophenol, and 1,3-dinitrobenzene. Free-base meso-tetrakis-4-carboxyphenyl porphyrin (H2TCPP) was entrapped within silica sol-gels during the polycondensation process. The interaction of the porphyrin with nitroaromatics, the porphyrin functionality, and the structural integrity of the doped sol-gels were examined using fluorescence and ultraviolet/visible (UV-Vis) spectroscopy. The experimental methodology and preliminary results of the study will be presented.