Results 21 to 30 of about 744,309 (158)

Utilization of Porcine Livers through the Formation of Zn-Protoporphyrin Pigment Optimized by a Response Surface Methodology [PDF]

open access: yes, 2023
There is a growing demand for clean-label products. This study aimed to obtain a food-grade coloring ingredient for meat products based on the formation of Zn-protoporphyrin from porcine livers, thus contributing to the development of nitrite-free ...
Bou, Ricard   +5 more
core   +1 more source

Natural Chlorophyll-Related Porphyrins and Chlorins for Dye-Sensitized Solar Cells

open access: yesMolecules, 2012
Natural-chlorophyll-related porphyrins, including (2H, Zn, Cu)-protoporphyrin IX (Por-1) and Zn-mesoporphyrin IX (Por-2), and chlorins, including chlorin e6 (Chl-1), chlorin e4 (Chl-2), and rhodin G7 (Chl-3), have been used in dye-sensitized solar cells (
Xiao-Feng Wang, Osamu Kitao
doaj   +1 more source

β-Lactoglobulin binds retinol and protoporphyrin IX at two different binding sites [PDF]

open access: yes, 1990
Measurement of tryptophan fluorescence quenching and the excitation energy transfer from tryptophanyl residues to the bound ligand indicates that β-lactoglobulin binds tightly to hemin and protoporphyrin IX in a ligand-to-protein stoichiometric ratio ...
Eric Dufour   +5 more
core   +1 more source

Zinc protoporphyrin IX, a heme oxygenase-1 inhibitor, demonstrates potent antitumor effects but is unable to potentiate antitumor effects of chemotherapeutics in mice

open access: yesBMC Cancer, 2008
Background HO-1 participates in the degradation of heme. Its products can exert unique cytoprotective effects. Numerous tumors express high levels of HO-1 indicating that this enzyme might be a potential therapeutic target.
Jozkowicz Alicja   +11 more
doaj   +1 more source

Incorporation of Protoporphyrin IX into Chlorophyll \u3ci\u3ea\u3c/i\u3e and Purification and Properties of (-) S-Adenosyl-L-Methionine-Magnesium Protoporphyrin IX Methyltransferase [PDF]

open access: yes, 1973
Experiments on the incorporation of 14C-protoporphyrin IX into chlorophyll indicate that ferrous iron may be involved in reactions between protoporphyrin IX and chlorophyll.
Shieh, Jii
core   +1 more source

Hierarchical coassembly of DNA–triptycene hybrid molecular building blocks and zinc protoporphyrin IX

open access: yesBeilstein Journal of Nanotechnology, 2016
Herein, we describe the successful construction of composite DNA nanostructures by the self-assembly of complementary symmetrical 2,6,14-triptycenetripropiolic acid (TPA)–DNA building blocks and zinc protoporphyrin IX (Zn PpIX).
Rina Kumari   +6 more
doaj   +1 more source

Human biomarker navigator

open access: yesiMeta, EarlyView.
The Human Biomarker Navigator integrates the disease continuum, biomarker dynamics, cross‐organ biomarker networks, biomarker classification, and technology‐driven paradigms. It maps how biomarkers link multi‐system physiology and pathology across the nervous, respiratory, endocrine, circulatory, immune, digestive, urinary, reproductive, and ...
Meng‐Yao Li   +29 more
wiley   +1 more source

Ascorbic Acid Mitigates Salt Stress in Tomato Seedlings by Enhancing Chlorophyll Synthesis Pathways

open access: yesAgronomy
Salt stress is a critical abiotic factor that adversely affects plant growth and productivity by impairing photosynthesis. This study explores the impact of exogenous ascorbic acid (AsA) on the photosynthetic performance of tomato seedlings (Solanum ...
Xianjun Chen   +6 more
doaj   +1 more source

The Porphyromonas gingivalis ferric uptake regulator orthologue binds hemin and regulates hemin-responsive biofilm development.

open access: yesPLoS ONE, 2014
Porphyromonas gingivalis is a Gram-negative pathogen associated with the biofilm-mediated disease chronic periodontitis. P. gingivalis biofilm formation is dependent on environmental heme for which P.
Catherine A Butler   +10 more
doaj   +1 more source

Mechanism‐Guided Engineering of Upconversion Nanoparticles for Antibacterial Phototherapy: From Photonic Principles to Translational Nanosystems

open access: yesSmall, EarlyView.
This review provides a systematic overview of the field of antibacterial PhotoDynamic Therapy (aPDT) triggered by upconversion nanoparticles (UCNPs), focusing on the mechanisms and the key factors that define their efficacy for generating bactericidal species upon NIR‐light activation.
Zhe Li   +3 more
wiley   +1 more source

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