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Based on the fact that we compensate the negative charges at the surface of the silver plasmon by acidifying the system, the red shift visible in the range of 600 - 700 nm might be explained by a charge transfer transition between the porphyrin donor and the neutral surface of the silver plamon [24].
Encouraged by the multitude of analytical applications of manganese porphyrins for the detection of active biological molecules, we investigated a metallated porphyrin, chloro[5,10,15,20-tetrakis-(4-methylphenyl) porphyrinato manganese(III)], both alone and in complex with gold colloid for the detection of [beta]-carotene.
Pedrosa et al., "Disaggregation of an insoluble porphyrin in a calixarene matrix: characterization of aggregate modes by extended dipole model," Physical Chemistry Chemical Physics, vol.
Among the vast family of organic ligands used in constructing MOFs, porphyrins are a family of biologically relevant tetrapyrrole macrocycles (9,10).
"Assembly of porphyrin building blocks into network structures with large channels." Nature 1994; 369:727-729.
Wagner et al., "Highly efficient porphyrin sensitizers for dye-sensitized solar cells," Journal of Physical Chemistry C, vol.
To illustrate the applicability of the suggested approach to model porphyrin binding with a macromolecule, a porphyrin TMPyP4 binding to 5'-(CG3)2CGC(AG3)2G-3' was selected as experimental example.
A false-positive urine porphyrin test result is possible in porphyria induced by liver cancer, hepatitis, and heavy metal poisoning such as that with lead [15].
The patient had elevated levels of total plasma porphyrin, uroporphyrin, and heptacarboxylporphyrin and hexacarboxylporphyrin; she had normal levels of pentacarboxylporphyrin, coproporphyrin I, and coproporphyrin II.
Sensitizers based on ruthenium [5, 6], zinc porphyrin [7, 8], and organic dyes [9] have been discovered and applied as efficient sensitizers for DSSC.
Objective: The aim of this study was to test the action of Porphyrin compounds, Tetraphenylporphine sulfonate (TPPS), 5,10,15,20-Tetrakis (4-sulfonatophenyl) porphyrinato Iron(III) Chloride (FeTPPS) and 5,10,15,20-Tetrakis (4-sulfonatophenyl) porphyrinato Iron(III) nitrosyl Chloride (FeNOTPPS), on Na+, K+ -ATPase of cell membrane of erythrocytes.
The agent developed by the researchers addresses these challenges by using manganese porphyrin.