Results 101 to 110 of about 3,607 (204)

Identification of 69 magnesium-free chlorophyll derivatives in decarboxylated extracts of medical Cannabis chemovars using ESI-LC-HRMS/MS

Talanta Open
The Cannabis plant contains many groups of bioactive metabolites with potential pharmacological properties. These properties have mainly been attributed to cannabinoids and terpenoids, with other groups receiving little attention.
Anna Shapira, Almog Uziel, Shiri Procaccia, Ohad Guberman, Dan Y. Lewitus, David Meiri   +5 more
doaj   +1 more source

The Modification of Exocyclic Ketone on Methyl (Pyro)pheophorbide-a and Influence with Visible Spectra

, 2001
The methyl pheophorbide-a (MP-a) and methyl pyropheophorbide-a (MPP-a) were modified by reaction of exocyclic ketone in E-ring with nucleophilic reagent and several chlorin derivatives were synthesized.
Jin-Jun Wang, Guang-Fan Han, Young Key Shim   +2 more
core  

Mechanistic insights into apoptosis induced by green synthesized liposomal gold nanoparticles enhancing photodynamic therapy in triple-negative breast cancer

Results in Chemistry
Breast cancer still presents a major challenge in oncology, even with treatment advances. Its complexity is attributed to high mortality, late-stage diagnosis, and the development of resistance to conventional therapies such as surgery, chemotherapy ...
Mehak Zahra, Heidi Abrahamse, Blassan P. George   +2 more
doaj   +1 more source

Stay-green protein, defective in Mendel's green cotyledon mutant, acts independent and upstream of pheophorbide a oxygenase in the chlorophyll catabolic pathway [PDF]

, 2018
Type C stay-green mutants are defined as being defective in the pathway of chlorophyll breakdown, which involves pheophorbide a oxygenase (PAO), required for loss of green color. By analyzing senescence parameters, such as protein degradation, expression
Mani, Jan, Hörtensteiner, Stefan, Aubry, Sylvain   +2 more
core  

A mixed quantum-classical description of pheophorbide a linear absorption spectra: Quantum-corrections of the Q(y)- and Q(x)-absorption vibrational satellites

, 2016
International audienceThe ground-state classical path approximation is utilized to compute molecular absorption spectra in a mixed quantum-classical frame.
Kulesza, Alexander, Megow, Joerg, May, Volkhard, Megow, Jörg   +3 more
core   +1 more source

First determination of photosynthetic pigments in surface sediments from the continental shelf and slope of the northwestern Gulf of Mexico

Ocean and Coastal Research
Marine pigments are more commonly used in food, pharmaceuticals, aquaculture and cosmetics industries. Marine pigments have a significant economic importance, constituting a multimillion-dollar industry that is still growing.
Alejandro Estradas-Romero, Luis A. Soto, Lucía Álvarez-Castillo   +2 more
doaj   +1 more source

Photophysical properties of gallium hydroxyl tetratolylporphyrin and 13(2)-demethoxycarbonyl-(gallium hydroxyl)-methyl-pheophorbide alpha

, 2006
Two metal tetrapyrroles containing gallium, gallium hydroxyl tetratolylporphyrin and 13(2)-demethoxycarbonyl-(gallium hydroxyl)methyl pheophorbide a (Ga-(OH)-chlorin), were synthesized from their respective free bases using Ga(III)-acetylacetonate in a ...
Roder, Beate, Litwinski, Christian, Roder, B., Jesorka, Aldo,, Tannert, Sebastian, Katterle, M.,, Jesorka, Aldo, Tannert, S.,, Litwinski, C., Litwinski, C.,, Tannert, S., Katterle, Martin, Katterle, M., Roder, B.,   +13 more
core   +1 more source

Photocleavage of DNA by a photosensitizer pheophorbide a

THE JOURNAL OF JAPAN SOCIETY FOR LASER SURGERY AND MEDICINE, 1992
Kobayashi, Masami, Nakazato, Masataka, Daikuzono, Norio, Komiyama, Makoto   +3 more
openaire   +2 more sources

Photosensitizing Activity of Pegylated Pheophorbide a

, 2011
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
ZACCHIGNA, MARINA, DRIOLI, Sara, CATENI, FRANCESCA, Xodo, L. E., ZORZET, SONIA, Rapozzi, V., BONORA, GIAN MARIA   +6 more
core  

Diagnosis of Arteriosclerosis Using Pheophorbide-a

THE JOURNAL OF JAPAN SOCIETY FOR LASER SURGERY AND MEDICINE, 1994
Amemiya, Tadashi, Oike, Yasuhisa, Miyagi, Manabu, Usui, Mikio, Rakue, Hiroyuki, Nakajima, Hitoshi, Naito, Yuichi, Shiraishi, Hiromori, Kato, Tomitsugu, Ibukiyama, Chiharu   +9 more
openaire   +2 more sources