Results 61 to 70 of about 2,990 (179)
Photosensitizing Activity of Pegylated Pheophorbide a
, 2010 Photodynamic therapy (PDT) is a non-invasive therapeutic modality used in a various number of diseases and cancer. It involves the systemic or topic administration of a photosensitizer, followed by irradiation with light. The activated photosensitizer converts oxygen to singlet oxygen and/or reactive oxygen species (ROS) which lead to cell death and ...
Rapozzi, V +6 more
openaire +4 more sources
Food Science &Nutrition, Volume 14, Issue 7, July 2026.This study evaluated the functional potential of Ulva lactuca extract as a natural colorant and antioxidant incorporated into sugar‐based (fondant) and aerated (meringue) confectionery matrices. Extract incorporation significantly enriched total phenolic content—achieving up to 150.95 mg GAE/100 g dry matter in meringues—and surged antioxidant ...
Elvan Gizem Gursoy +4 more
wiley +1 more source
International Journal of Photoenergy, 2014 Pheophorbide-a derivatives have been reported to be potential photosensitizers for photodynamic therapy (PDT). In this study, photophysics of pheophorbide-a derivatives (PaDs) were investigated along with their photodynamic tumoricidal effect in vitro ...
Kang-Kyun Wang +9 more
doaj +1 more source
Pheophorbide b ethyl ester from a chlorella vulgaris dietary supplement
Acta Crystallographica Section E, 2008 In the title compound, C37H38N4O6, four five-membered nitrogen-bearing rings are nearly coplanar. Two N atoms in two these five-membered rings have attached H atoms, which contribute to the formation of intramolecular N—H...N hydrogen bonds [N...N =
Seik Weng Ng +3 more
doaj +1 more source
Chemical Composition and Bioactivities of the Marine Alga from Taiwan
Natural Product Communications, 2010 The present study investigated the chemical composition of Isochrysis galbana Parke, a marine microalga which is widely used as a feedstock in aquaculture. From gas chromatography/mass spectrometric analysis the mono-sugar compositions of I. galbana were
Chi-Cheng Yu +10 more
doaj +1 more source
Interaction between pheophorbide a and primary aliphatic amines.
Тонкие химические технологии, 2008 The effect of primary aliphatic amine structure and conditions (solvent, the presence of tertiary amine) in course of its reaction with pheophorbide a and methylpheophorbide a on the yield of the final product – chlorine е6-13-alkylamide has been shown.
Е. А. Larkina +3 more
doaj
Photochemical & Photobiological Sciences, 2018 Previously, we have shown that the use of a cyclopeptidic carrier could be of great interest for the design of fully characterized prodrugs for further use in photodynamic therapy. In order to further optimize the design, we decided to modify the highly quenched conjugate uPA-cPPP4/5 by co-loading a long-distance fluorescence quencher. For this purpose
Bouilloux, Jordan +7 more
openaire +3 more sources
Frontiers in MicrobiologyIntroductionSodium pheophorbide a (SPA) is a natural plant-derived photosensitizer, with high photoactivated antifungal activity against some phytopathogenic fungi.
Xu-Long Shi +5 more
doaj +1 more source
Phytotoxic Chlorophyll Derivatives from Petrorhagia velutina (Guss.) Ball et Heyw Leaves
Natural Product Communications, 2010 In this investigation the phytochemical study of chlorophyll derivatives from leaf extract of Petrorhagia velutina, a eurimediterranean plant species typical of macchia vegetation is reported.
Brigida D'Abrosca +4 more
doaj +1 more source
AgronomyThe Pheophorbide a oxygenase (PaO) is a key enzyme in chlorophyll degradation and plays an important role in plant senescence. However, the PaO gene’s function in sorghum remains underexplored.
Jinbiao Li +6 more
doaj +1 more source