Results 101 to 110 of about 12,819 (218)

Cavity Design via Entrapment of Tetrapyrrole Macrocycles in Sol–Gel Matrices for Catalytic, Optical or Sensoring Functions

Adsorption Science & Technology, 2012
The physicochemical and luminescent properties of tetrapyrrole macrocycles, such as the porphyrins (H 2 P) and phthalocyanines (H 2 Pc), were preserved by trapping or bonding these species in silica matrices.
M.A. García-Sánchez, R.I.Y. Quiroz-Segoviano, F. Rojas, E.C. Menchaca-Campos, S.R. Tello–Solís, L. Munguía-Cortéz, L.A. Díaz-Alejo, E. Salas-Bañales   +7 more
doaj   +1 more source

The regulation of tetrapyrrole biosynthesis in Arabidopsis thaliana [PDF]

, 2009
EThOS - Electronic Theses Online ServiceGBUnited ...
Stephenson, Patrick George
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Production of tetrapyrrole compounds and vitamin B12 using genetically engineering of Propionibacterium freudenreichii. An overview [PDF]

, 2005
International audiencePropionibacterium freudenreichii is a commercially important bacterium that is used in the production of cheeses, cobalamin (vitamin B12) and propionic acid.
Kiatpapan, Pornpimon, Piao, Yongzhe, Murooka, Yoshikatsu, Yamashita, Mitsuo   +3 more
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Matrix Selection Strategies for MALDI-TOF MS/MS Characterization of Cyclic Tetrapyrroles in Blood and Food Samples

Molecules
Cyclic tetrapyrrole derivatives such as porphyrins, chlorins, corrins (compounds with a corrin core), and phthalocyanines are a family of molecules containing four pyrrole rings usually coordinating a metal ion (Mg, Cu, Fe, Zn, etc.). Here, we report the
Mariachiara Bianco, Giovanni Ventura, Cosima Damiana Calvano, Ilario Losito, Tommaso R. I. Cataldi, Antonio Monopoli   +5 more
doaj   +1 more source

COVID-19 Therapy: Could a Chlorophyll Derivative Promote Cellular Accumulation of Zn2+ Ions to Inhibit SARS-CoV-2 RNA Synthesis?

Frontiers in Plant Science, 2020
Nicole F. Clark, Andrew W. Taylor-Robinson   +1 more
doaj   +1 more source

Proteins involved in the tetrapyrrole pathway in Synechocystis sp. PCC 6803 and their localization in the proximity of PSII biogenesis [PDF]

, 2019
The goal of the thesis was to enhance our understanding of the tetrapyrrole pathway in cyanobacteria by a study of selected proteins involved in the pathway.
SKOTNICOVÁ, Petra
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A Modified Pyrrole Biscarbinol Approach to Opp‐A2B2‐Symmetric Benzoporphyrins

ChemistryEurope
In the pursuit of advanced functional materials, π‐extended porphyrin derivatives, particularly β,β‐benzannulated tetrapyrroles, have garnered significant attention due to their unique structural and electronic properties.
Lampros‐Pascal Gazetas, Michael Ruppel, Frank Hampel, Dominik Lungerich, Norbert Jux   +4 more
doaj   +1 more source

9th International Conference on Tetrapyrrole Photoreceptors of Photosynthetic Organisms (ICTPPO 2009): Meeting Proceedings [PDF]

, 2009
Tetrapyrroles are strongly pigmented heterocyclic molecules that play key roles in the harvesting of light and in its efficient conversion into chemical energy by photosynthetic organisms, including agronomically important plant species.
Lagarias, J. Clark
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Evolution of the tetrapyrrole synthesis in eukaryotes [PDF]

, 2011
This thesis focuses on the nature of heme metabolism in various eukaryotes. One of the aims was the elucidation of the origin of the unique heme biosynthesis pathway in apicomplexan parasites through a comparative study of their photosynthetic relative ...
KOŘENÝ, Luděk
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Theoretical aspects of tetrapyrrole biochemistry [PDF]

, 2004
Modern theoretical simulations are able to provide significant insight into biochemical problems on a scale which continues to expand. With the aid of computer power and the sophisticated programs of researchers in the field, we have addressed a series ...
Jensen, Kasper
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