Results 11 to 20 of about 66,875 (309)
Interlocked Porphyrin Switches [PDF]
Chemistry – A European Journal, 2013 AbstractWe describe the synthesis of a series of interlocked structures from porphyrin–glycoluril cage compounds and bis(olefin)‐terminated viologens by an olefin‐metathesis protocol. The length of the chain connecting the olefin substituents with the viologen has a marked effect on the products of the ring‐closure reaction.
Coumans, R.G.E. +5 more
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Assessing the In Vitro Activity of Selected Porphyrins in Human Colorectal Cancer Cells
Molecules, 2022 Standard in vitro analyses determining the activity of different compounds included in the chemotherapy of colon cancer are currently insufficient. New ideas, such as photodynamic therapy (PDT), may bring tangible benefits.
Maciej Piotr Frant +2 more
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Thiol regulation by Mn porphyrins, commonly known as SOD mimics
Redox Biology, 2019 Superoxide dismutases play an important role in human health and disease. Three decades of effort have gone into synthesizing SOD mimics for clinical use. The result is the Mn porphyrins which have SOD-like activity.
Ines Batinic-Haberle, Margaret E. Tome
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Porphyrinic metal-organic frameworks for biological applications
Advanced Sensor and Energy Materials, 2023 Porphyrins and their derivatives have been extensively applied in various fields owing to their photophysical and electrochemical properties. However, the drawbacks of self-aggregation and self-quenching in aqueous media limit their biological ...
Li-Jian Chen, Xu Zhao, Xiu-Ping Yan
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The photodynamic and non-photodynamic actions of porphyrins
Brazilian Journal of Medical and Biological Research, 1999 Porphyrias are a family of inherited diseases, each associated with a partial defect in one of the enzymes of the heme biosynthetic pathway. In six of the eight porphyrias described, the main clinical manifestation is skin photosensitivity brought about ...
S.G. Afonso +2 more
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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 +3 more
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Water-Solubilization of P(V) and Sb(V) Porphyrins and Their Photobiological Application
International Journal of Photoenergy, 2015 Porphyrins have been widely utilized as biochemical and biological functional chromophores which can operate under visible-light irradiation. Water-soluble porphyrins have been used as the drug for photodynamic therapy (PDT) and photodynamic inactivation
Jin Matsumoto +3 more
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Phosphates Induced H-Type or J-Type Aggregation of Cationic Porphyrins with Varied Side Chains
Molecules, 2023 Non-covalent interactions have been extensively used to fabricate nanoscale architectures in supramolecular chemistry. However, the biomimetic self-assembly of diverse nanostructures in aqueous solution with reversibility induced by different important ...
Zhiliang Li +4 more
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Molecules, 2015 The inhibition of the corrosion of N80 steel in 3.5 wt. % NaCl solution saturated with CO2 by four porphyrins, namely 5,10,15,20-tetrakis(4-hydroxyphenyl)-21H,23H-porphyrin (HPTB), 5,10,15,20-tetra(4-pyridyl)-21H,23H-porphyrin (T4PP), 4,4′,4″,4 ...
Ambrish Singh +11 more
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Preliminary study of metalloporphyrins in some oil shales, red sea, Egypt
Egyptian Journal of Petroleum, 2017 Occurence and distribution of metalloporphyrins were studied in asphaltene and maltene fractions of some Egyptian oil shales from the main producing mines (Abu-Shegeili, El-Beida, El-Nakheil and Abu-Tundub I, II) in red sea area (Fig.
S.M. El-Sabagh +3 more
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