Results 81 to 90 of about 1,024 (191)
Deuterium Isotope Effect on the Excited-State Photophysics of Hypocrellin: Evidence for Proton or Hydrogen Atom Transfe [PDF]
, 1997 A deuterium isotope effect of 1.4 is observed in the excited-state proton or atom transfer of hypocrellin A in methanol and methanol-O-d. This is the most direct and convincing evidence to date that excited-state intramolecular proton or atom transfer ...
Petrich, Jacob, English, D., Das, K.
core
Synthesis of the Altertoxin I Framework
European Journal of Organic Chemistry, Volume 27, Issue 3, January 15, 2024.The core of the perylenequinone‐derived mycotoxin altertoxin I was synthesized either from 3‐hydroxyacetophenone or from 1,5‐dihydroxynaphthalene, where Suzuki couplings, Ullmann couplings, McMurry olefinations, and Friedel‐Crafts acetylation were key steps in the respective syntheses.
Maximilian Gutsche +2 more
wiley +1 more source
Overcoming challenges in cancer treatment: Nano‐enabled photodynamic therapy as a viable solution
WIREs Nanomedicine and Nanobiotechnology, Volume 16, Issue 1, January/February 2024.Nano‐photodynamic therapy: conquering cancer challenges. Nano‐enabled photodynamic therapy (NE‐PDT) leverages precise apoptotic mechanisms, reactive oxygen species generation, and nanoparticle synergy to tackle cancer challenges effectively. Interdisciplinary collaborations and clinical advancements demonstrate NE‐PDT's promise in innovative, targeted ...
Sheeja S. Rajan +2 more
wiley +1 more source
, 2018 Hypocrellin productions (A), biomasses (B) and amylase activities (C) when five strains were cultured under SSF.
Ye Zhao (39959) +7 more
core +1 more source
, 2018 Hypocrellins, fungal perylenequinones of Shiraia bambusicola are developed as important photodynamic therapy agents against cancers and viruses. Due to the limitation of the wild resources, the mycelium culture is a promising alternative for hypocrellin ...
Jian Wen Wang (5868884) +2 more
core +1 more source
Hypocrellin B-Acetate-mediated photodynamic activation drives HeLa cells to apoptotic death
, 2012 The work describes the apoptotic effect of Hypocrellin B-Acetate-mediated photodynamic activation on HeLa ...
Croce AC +6 more
core +1 more source
Frontiers in Pharmacology, 2017 Photodynamic therapy (PDT) has emerged as a potent novel therapeutic modality that induces cell death through light-induced activation of photosensitizer.
Xi Lin +8 more
doaj +1 more source
NOVEL THERAPEUTIC AND DIAGNOSTIC APPLICATIONS OF HYPOCRELLINS AND HYPERICINS [PDF]
Photochemistry and Photobiology, 1995 AbstractHypocrellins and hypericins, structurally related plant pigments isolated fromHypocrella bambuaseandHypericumrespectively, are known photodynamic agents. This review summarizes certain significant advances in the photophysics, photochemistry and photobiology of these pigments in the last 2 years and discusses their prospects as novel ...
openaire +2 more sources
Bacteria Associated With Shiraia Fruiting Bodies Influence Fungal Production of Hypocrellin A
Frontiers in Microbiology, 2019 Hypocrellin A (HA) is a natural red perylenequinone pigment from Shiraia fruiting body, which was used clinically on various skin diseases and developed as a photodynamic therapy agent against cancers.
Yan Jun Ma, Li Ping Zheng, Jian Wen Wang
doaj +1 more source
Temperature Dependence of the Excited-State Intramolecular Proton Transfer Reaction in Hypericin and Hypocrellin A [PDF]
, 1999 The excited-state intramolecular proton-transfer reactions of hypericin and hypocrellin A are measured as a function of temperature in an ethanol/methanol mixture.
Wen, J. +3 more
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