porphin

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porphin

[′pȯr·fən]
(biochemistry)
A heterocyclic ring consisting of four pyrrole rings linked by methine (‒CH=) bridges; the basic structure of chlorophyll, hemoglobin, the cytochromes, and certain other related substances.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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compared the TE properties of DWCNT-PVAc and MWCNT-PVAc composites with two different stabilizers: the insulating sodium deoxycholate (DOC) and semiconductive meso-tetra(4-carboxyphenyl) porphine (TCPP) [206].
Baykara, "Investigation of pluronic and PEG-PE micelles as carriers of meso-tetraphenyl porphine for oral administration," International Journal of Pharmaceutics, vol.
However, dehydrogenation reaction between porphine and edge of graphene occurs following different reaction pathways depending on the catalysis of substrate (Figure 3(a)) [10], because different reaction pathways may be activated at the same time with no obvious discrepancy in trigger temperature.
Arciola et al., "Photodynamic action of Tri-meso (N-methyl-pyridyl), meso (N-tetradecyl-pyridyl) porphine on Staphylococcus epidermidis biofilms grown on Ti6Al4V alloy," International Journal of Artificial Organs, vol.
The [sup.13]C-NMR spectrum of [H.sub.2]TPP gives rise to six sharp signals for the porphine core and aryl rings at 120.5 ppm for [C.sub.meso], 127.1 ppm for [C.sub.3,5], 128.1 ppm for [C.sub.4], 131.5 ppm for [C.sub.[beta]], 135.0 ppm for [C.sub.2,6], and 142.6 ppm for [C.sub.1] and a very broad signal at 145 ppm for the [alpha]-carbons, whereas the [sup.13]C-NMR spectra of TPPIn-Cl showed seven signals at 121.75, 127.75, 127.99, 132.76, 135.09, 141.96, and 149.46 ppm for [C.sub.meso], [C.sub.3,5], [C.sub.4], [C.sub.[beta]], [C.sub.2,6], [C.sub.1], and [C.sub.[alpha]] carbons, respectively.
01987011.2, "Composition and Methods for Detecting Pre-Cancerous Conditions In Cell And Tissue Samples Using 5, 10, 15, 20-Tetrakis (Carboxyphenol) Porphine".
A porphyrin molecule consists of heterocyclic tetrapyrrole unit, called porphine, and meso-substituents.
Zinc estimation: Serum zinc level was quantified by colorimetry as previously-described (16) using [alpha], [beta], [gamma], [delta]-tetrakis (4-N-trimethylaminophenyl) porphine tetratolunesulphonate salt (ttmapp) and ferron catalyst, using a Biomate 3 spectrophotometer (Thermo Electronics, USA), and synthetic quartz glass cuvettes (Hellma, Sigma-Aldrich, USA).