Results 141 to 150 of about 9,384,210 (255)

Sunlight‐Induced Lipid Oxidation and Degradation of Edible Oil Mediated by Hemoglobin: Implications for Food System Sustainability

open access: yesFood Science &Nutrition, Volume 14, Issue 10, October 2026.
Sunlight‐activated hemoglobin (Hb) functions as a robust natural biocatalyst that promotes the degradation of edible oils through a dual, synergistic pathway. Photo‐excitation of Hb triggers simultaneous energy transfer, generating singlet oxygen (1O2) and electron transfer, forming highly reactive ferryl (HbFe(IV)═O) species.
Mahdi Hajimohammadi   +4 more
wiley   +1 more source

Structural and Functional Characterisation of a Metagenome‐Derived CYP108D18 Reveals an Unusual Dioxygen‐Bound State and Selective Hydrocarbon Hydroxylation

open access: yesMicrobial Biotechnology, Volume 19, Issue 10, October 2026.
CYP108D18, identified from a hot spring metagenome, catalyses selective phenylcyclohexane hydroxylation. This P450 has an exceptionally low substrate‐bound heme redox potential. Crystal structures revealed an unusual dioxygen‐bound substrate‐free form and a persistent open active site upon substrate binding.
Simran Kundral   +10 more
wiley   +1 more source

Student–teacher relationships as a mediator of children's education‐linked genetics: results from the Norwegian Mother, Father and Child Cohort Study

open access: yesJournal of Child Psychology and Psychiatry, Volume 67, Issue 10, Page 1729-1740, October 2026.
Background Genetic differences are robustly associated with educational outcomes, but how they become linked is poorly understood. A plausible hypothesis, yet to be thoroughly empirically tested, is that the school environment mediates the association. Methods Using structural equation models, we tested whether the student–teacher relationship at age 5
Chloe Austerberry   +10 more
wiley   +1 more source

Piperazine and Morpholine Protoporphyrin IX Derivatives Intensify Biomolecules Oxidation and Phototoxicity in Triple‐Negative Breast Cancer

open access: yesChemMedChem, Volume 21, Issue 17, 14 September 2026.
Protoporphyrin IX derivatives bearing piperazine or morpholine substituents exhibit enhanced cellular retention and photodynamic activity in triple‐negative breast cancer cells. Structural modification promotes oxidative stress, alters mitochondrial membrane potential, and increases caspase‐3 activity, providing new structure–activity relationship ...
Maynne Duarte Suriani Franco   +11 more
wiley   +1 more source

Effects of Mono‐ and Dicapsaicinoid Functionalization on the Physicochemical Properties and Antimicrobial Photodynamic Activity of Protoporphyrin IX

open access: yesChemMedChem, Volume 21, Issue 17, 14 September 2026.
Capsaicin functionalization of Protoporphyrin IX influences aggregation behavior, lipophilicity, and photodynamic activity. A monosubstituted derivative exhibits enhanced antimicrobial photoinactivation of Staphylococcus aureus, whereas increased functionalization does not improve efficacy.
Ieda Vieira da Cunha   +10 more
wiley   +1 more source

Synthesis and Functional Properties of Fluorinated Phosphonate‐Substituted Porphyrins: Excellent Photosensitizers and Robust Precursors for Photoactive Langmuir–Schaefer Films

open access: yesChemistry – A European Journal, Volume 32, Issue 34, 11 September 2026.
This is a comprehensive study of new family of high functionalized meso‐tetraarylporphyrins. A synthetic approach to phosphonate‐substituted fluorinated porphyrins was developed. These compounds were investigated with respect to singlet oxygen generation and photostability.
Azhar Kechiche   +8 more
wiley   +1 more source

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