Results 81 to 90 of about 113,928,997 (189)
Hypocrellin B (HB) is a highly effective photosensitizer. One of its derivatives, 5-brominated-hypocrellin B (5-Br-HB) has better photosensitive characterlstics than it. Using Raman spectroscopy, the microcosmic photodamage to DNA sensitized by HB and 5-Br-HB was studied at molecular level.
Hongxia Zhao, Yiming Xu, Zhiyi Zhang
openaire +1 more source
Overcoming challenges in cancer treatment: Nano‐enabled photodynamic therapy as a viable solution
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
Hypericin, Hypocrellin, and Model Compounds: Primary Photoprocesses of Light-Induced Antiviral Agents [PDF]
The excited-state photophysics of the light-induced antiviral agents hypericin and hypocrellin are compared with those of the hexa- and tetramethoxy analogues of hypericin. The results are consistent with the interpretation of the primary photoprocess in
Kraus, George +6 more
core
Efficient Photoluminescence of Mn2+-Doped ZnS Quantum Dots Sensitized by Hypocrellin A
Mn2+-doped ZnS semiconductor quantum dots reveal remarkably intense photoluminescence with the 4T1(4G) f6A1(6S) transition. In this study, following growth doping technique, Mn2+-doped ZnS quantum dots (ZnS:Mn2+ QDs) with high-quality optical properties ...
Xianlan Chen +5 more
doaj +1 more source
NOVEL THERAPEUTIC AND DIAGNOSTIC APPLICATIONS OF HYPOCRELLINS AND HYPERICINS [PDF]
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
Deuterium Isotope Effect on the Excited-State Photophysics of Hypocrellin: Evidence for Proton or Hydrogen Atom Transfe [PDF]
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
Biomasses (A), hypocrellin productions (B) and residual sugars (C) when five strains were cultured under liquid state fermentation.
Ye Zhao (39959) +7 more
core +1 more source
Primers of hypocrellin biosynthesis genes and related genes in central carbon metabolism.
Primers of hypocrellin biosynthesis genes and related genes in central carbon metabolism.
Ye Zhao (39959) +7 more
core +1 more source
Novel hypocrellin B loaded apoferritin nanoparticles were successfully developed to increase the photosensitizer's solubility, intracellular uptake and photodynamic activity.
Xinna Wang +7 more
core +1 more source

