Results 81 to 90 of about 113,928,997 (189)

Raman spectroscopic study of DNA photodamage sensitized by hypocrellin B and 5-brominated-hypocrellin B

open access: yesChinese Science Bulletin, 1998
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

open access: yesWIREs 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

Hypericin, Hypocrellin, and Model Compounds:  Primary Photoprocesses of Light-Induced Antiviral Agents [PDF]

open access: yes, 1997
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

open access: yesAdvances in Materials Science and Engineering, 2015
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]

open access: yesPhotochemistry 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

Deuterium Isotope Effect on the Excited-State Photophysics of Hypocrellin:  Evidence for Proton or Hydrogen Atom Transfe [PDF]

open access: yes, 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  

Biomasses (A), hypocrellin productions (B) and residual sugars (C) when five strains were cultured under liquid state fermentation.

open access: yes, 2018
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

MOESM1 of Response mechanism of hypocrellin colorants biosynthesis by Shiraia bambusicola to elicitor PB90

open access: yes, 2019
Additional file 1.
Jun Wang (5906)   +11 more
core   +1 more source

Primers of hypocrellin biosynthesis genes and related genes in central carbon metabolism.

open access: yes, 2018
Primers of hypocrellin biosynthesis genes and related genes in central carbon metabolism.
Ye Zhao (39959)   +7 more
core   +1 more source

Preparation of hypocrellin B nanocages in self-assembled apoferritin for enhanced intracellular uptake and photodynamic activity

open access: yes, 2017
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

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