Results 121 to 130 of about 11,058,511 (394)
A shape‐morphing, porous polyurethane film combines passive radiative cooling with folding to deliver multilevel heating‐and‐cooling control. High solar reflectance and midinfrared emissivity keep surfaces up to 3.5 °C cooler in direct sunlight, while photothermal triggering folds the film to absorb solar heat.
Yoon Young Choi+5 more
wiley +1 more source
Antioxidant and Photo-antioxidant Activities of Phenylpropanoids
Phenylpropanoids are one of the metabolic products of phenylalanine and tyrosine. The antioxidant and photo- antioxidant activities were studied kinetically and along the metabolic pathway, to investigate the possibility of application to petrochemical products. The metabolites showed only slight photo-antioxidant activities, compared with a commercial
Sachiko Kubota+2 more
openaire +2 more sources
Existing antioxidant levels are more important in acclimation to supplemental UV-B irradiation than inducible ones: Studies with high light pretreated tobacco leaves [PDF]
Greenhouse grown tobacco plants were exposed to supplemental ultraviolet irradiation (280-400 nm, UV-B centered) for 6 days and changes in their photosynthesis (gas exchange and electron transport) and general and specific antioxidant activities were ...
Hideg, Éva, Majer, Petra
core +1 more source
This study introduces an extracorporeal hemoperfusion system incorporating porous microbeads embedded with autocatalytic ceria nanoparticles (CeNPs) for targeted reactive oxygen species (ROS) scavenging in septic shock. The blood‐compatible hemoperfusion cartridge demonstrated significant improvements in survival, hemodynamic stability, and organ ...
Pilseon Im+10 more
wiley +1 more source
Wael M El-Sayed,1,2 Warda A Hussin31King Faisal University, Faculty of Science, Departments of Biological Sciences and Chemistry, Al-Hufof, Ahsa, Kingdom of Saudi Arabia; 2University of Ain Shams, Faculty of Science, Department of Zoology, Cairo, Egypt ...
El-Sayed WM, Hussin WA
doaj
Antioxidant activity of 4-methylcoumarins
Abstract Polyphenolic coumarins are known to act as antioxidants in biological systems, but it is difficult to distinguish their antioxidant activity from the many other effects they produce in cells. We have determined the radical scavenging capacity of 22 structurally related natural and synthetic 4-methylcoumarins, by measuring their ...
Vineet Kumar+10 more
openaire +5 more sources
The MPTT‐nanozyme‐hydrogel system (Mn3O4@ChS‐HA) provides a multifunctional therapeutic strategy for intervertebral disc degeneration (IVDD), effectively targeting oxidative stress and enhancing AF repair by restoring extracellular matrix (ECM) and redox homeostasis.
Yangyang Chen+13 more
wiley +1 more source
Antioxidant Activity of Wine Pomace
Extractable polyphenols and antioxidant activity of white and red grape pomaces were determined. Total extractable polyphenols assayed by the Folin-Ciocalteu method in white grape pomace (6.5%), skins (5.3%), and seeds (9.2%) were higher than those in red grapes: 2.2%, 2.1%, and 2.1%, respectively.
Larrauri, José A.+2 more
openaire +2 more sources
Plasma‐Treated Hydrogel for Combined RONS and Chemotherapy Delivery: A Proof‐of‐Concept In Ovo
This study explores plasma‐treated hydrogels (PTH) as a new way to deliver both reactive oxygen and nitrogen species and chemotherapy (Doxorubicin) directly to tumors. In ovo tests show effects after a single dose, especially in osteosarcoma tumors. Tumor weight decrease, and a resistance‐related protein is reduced.
Milica Živanić+9 more
wiley +1 more source
A Review of the Antioxidant Activity of Celery (Apium graveolens L)
Plants are an important source of natural active products that are different, based on mechanism and biological properties. Celery (Apium graveolens L) is a plant from the apiaceae family and phenolic and antioxidant compounds of this plant have been ...
W. Kooti, Nahid Daraei
semanticscholar +1 more source