Results 11 to 20 of about 90,155 (265)

Synthesis of Fe(II)/Co(II)-Fused Triphenyl Porphyrin Dimer as Candidate for Oxygen Reduction Reaction Catalyst

Indonesian Journal of Chemistry, 2021
This paper reports the synthesis of Fe(II)/Co(II) fused triphenyl porphyrin dimers as candidate of hybrid organic metal electrocatalyst. The synthesis was conducted in five-step reactions using the starting materials pyrrole and benzaldehyde.
Atmanto Heru Wibowo, Anggit Pradifta, Abu Masykur, Ken-ichi Yamashita, Yosuke Tani, Ari Yustisia Akbar, Takuji Ogawa   +6 more
doaj   +1 more source

Proof of concept for molecular velcro based on the attractive interaction between porphyrin and pyridine containing copolymers

eXPRESS Polymer Letters, 2018
In this short communication, we investigated the synthesis and mixing of porphyrin and pyridine functionalized copolymers as a proof of concept for a velcro-like interaction.
M. Sievers, J. C. Namyslo, F. Lederle, E. G. Huebner   +3 more
doaj   +1 more source

Chiral porphyrin assemblies

Aggregate, 2023
Porphyrins are among the most important macrocycles because they perform many essential functions in living systems and serve as building blocks in many functional materials. Incorporating the chirality into porphyrins can aid biomimetic research and the
Li Zhang, Tianyu Wang, Jianzhuang Jiang, Minghua Liu   +3 more
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Porphyrin-Based Covalent Organic Frameworks: Design, Synthesis, Photoelectric Conversion Mechanism, and Applications

Biomimetics, 2023
Photosynthesis occurs in high plants, and certain organisms show brilliant technology in converting solar light to chemical energy and producing carbohydrates from carbon dioxide (CO2).
Xiaoyu Li, Chuanyin Tang, Li Zhang, Mingyang Song, Yujie Zhang, Shengjie Wang   +5 more
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meso-5,15-Bis[3-(isopropylidenegalactopyranoxy)phenyl]-10,20-bis(4-methylphenyl)porphyrin

IUCrData
The crystal structure of a glycosylated porphyrin (P_Gal2) system, C70H70N4O12, where two isopropylidene protected galactose moieties are attached to the meso position of a substituted tetraaryl porphyrin is reported.
Mickey Vinodh, Fatemeh H. Alipour, Talal F. Al-Azemi   +2 more
doaj   +1 more source

Synthesis and Spectroscopic Characterization of Some New Axially Ligated Indium(III) Macrocyclic Complexes and Their Biological Activities

Bioinorganic Chemistry and Applications, 2014
The synthesis and spectroscopic characterization of new axially ligated indium(III) porphyrin complexes were reported. Chloroindium(III) porphyrin (TPPIn-Cl) was obtained in good yield by treating the corresponding free base with indium trichloride. The
Gauri D. Bajju, Altaf Ahmed, Deepmala Gupta, Ashu Kapahi, Gita Devi   +4 more
doaj   +1 more source

Porphyrin-Induced Protein Oxidation and Aggregation as a Mechanism of Porphyria-Associated Cell InjurySummary

Cellular and Molecular Gastroenterology and Hepatology, 2019
Genetic porphyrias comprise eight diseases caused by defects in the heme biosynthetic pathway that lead to accumulation of heme precursors. Consequences of porphyria include photosensitivity, liver damage and increased risk of hepatocellular carcinoma ...
Dhiman Maitra, Juliana Bragazzi Cunha, Jared S. Elenbaas, Herbert L. Bonkovsky, Jordan A. Shavit, M. Bishr Omary   +5 more
doaj   +1 more source

Evaluation of the correlation between porphyrin accumulation in cancer cells and functional positions for application as a drug carrier

Scientific Reports, 2021
Porphyrin derivatives accumulate selectively in cancer cells and are can be used as carriers of drugs. Until now, the substituents that bind to porphyrins (mainly at the meso-position) have been actively investigated, but the effect of the functional ...
Koshi Nishida, Toshifumi Tojo, Takeshi Kondo, Makoto Yuasa   +3 more
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Porphyrin-Based Nanomaterials for the Photocatalytic Remediation of Wastewater: Recent Advances and Perspectives

Molecules
Self-organized, well-defined porphyrin-based nanostructures with controllable sizes and morphologies are in high demand for the photodegradation of hazardous contaminants under sunlight.
Nirmal Kumar Shee, Hee-Joon Kim
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Bis-Porphyrin Racks with Space-Separated Co-Planar Porphyrin Rings

Molecules, 2001
A porphyrin appended norbornenyl building block 8 has been isolated and coupled, using a 1,3-dipolar ACE reaction, to yield bis-porphyrin compounds in which the porphyrin moietes are angled upward relative to the norbornane backbone.
Martin R. Johnston
doaj   +1 more source