Results 1 to 10 of about 47,133 (204)
An overview on AIEgen‐decorated porphyrins: Current status and applications
Aggregate, 2023 One of the major obstacles of porphyrins is the aggregation‐caused quenching (ACQ) of photoluminescence due to the strong intermolecular π–π interaction of the planar porphyrin core in the solid state.
Govardhana Babu Bodedla +2 more
doaj +1 more source
Mechanisms of Phototoxic Effects of Cationic Porphyrins on Human Cells In Vitro
Molecules, 2023 The toxic effects of four cationic porphyrins on various human cells were studied in vitro. It was found that, under dark conditions, porphyrins are almost nontoxic, while, under the action of light, the toxic effect was observed starting from nanomolar ...
Yegor E. Yegorov +7 more
doaj +1 more source
On-Surface Synthesis of Na-Porphyrins Using NaCl as a Convenient Na Source
Precision Chemistry, 2023 Metallo-porphyrins with different metal centers display unique properties and are essential in various biological and chemical processes. Enormous efforts have been devoted to enriching the family of metallo-porphyrins on surfaces mainly through ...
Zewei Yi +5 more
doaj +1 more source
Functionalization of Porphyrins Using Metal-Catalyzed C–H Activation
Inorganics, 2022 The review is devoted to the C–H functionalization of porphyrins. Porphyrins exhibit the properties of organic semiconductors, light energy converters, chemical and electrochemical catalysts, and photocatalysts.
Aleksey N. Kiselev +3 more
doaj +1 more source
Air oxidation of the kerogen/asphaltene vanadyl porphyrins: an electron spin resonance study [PDF]
Journal of the Serbian Chemical Society, 2000 The thermal behavior of vanadyl porphyrins was studied by electron spin resonance during heating of kerogens, isolated from the La Luna (Venezuela) and Serpiano (Switzerland) bituminous rocks, at 25°C for 1 to 20 days in the presence of air.
MIRJANA S. PAVLOVIC +3 more
doaj +2 more sources
Geosciences, 2022 Porphyrins are highly persistent in the environment and represent a helpful biogeochemical attribute to assess the spatial distribution of the effects of oil spills on ecosystems and their resilience.
Francisco Muñoz-Arriola +1 more
doaj +1 more source
Molecules, 2023 Standard therapies for colorectal cancer cannot eliminate or sufficiently reduce the metastasis process. Photodynamic therapy (PDT) may be an alternative to minimizing this problem.
Maciej P. Frant +4 more
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source