Results 81 to 90 of about 105,728 (308)

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Selection of elastomeric membranes for the removal of volatile organics from water [PDF]

, 1993
A wide range of homogeneous elastomeric membranes has been prepared using dicumylperoxide as a general cross-linking agent. The membranes have been used for both equilibrium sorption measurements and steady-state pervaporation experiments to study ...
Mulder, M.H.V., Nijhuis, H.H., Nijhuis, H.H., Smolders, C.A., Smolders, C.A.   +4 more
core   +2 more sources

Cutaneous Melanoma Drives Metabolic Changes in the Aged Bone Marrow Immune Microenvironment

Aging and Cancer, EarlyView.
Melanoma, the deadliest form of skin cancer, increasingly affects older adults. Our study reveals that melanoma induces changes in iron and lipid levels in the bone marrow, impacting immune cell populations and increasing susceptibility to ferroptosis.
Alexis E. Carey, Murilo Ramos Rocha, Cheyenne Palm, Vania Wang, Denys Balandin, Ethan Black, Kevin Y. Zhang, Fan Huang, Daniel J. Zabransky, Yash Chhabra, Mareike Peters, Gabriel Ghiaur, Ashani Weeraratna   +12 more
wiley   +1 more source

Ozonation as a means of increasing the ecological safety of agrosystems: Purification of soils and irrigation water from toluene and its derivatives

Рослинництво та ґрунтознавство
The aim of the study was to evaluate the effectiveness of liquid-phase ozonation of methylbenzenes as a method for neutralising aromatic xenobiotics in surface waters and soils of agroecosystems.
A. Halstian
doaj   +1 more source

Synthesis and thermal properties of strontium and calcium peroxides [PDF]

A practical synthesis and a discussion of some chemical properties of pure strontium peroxide and calcium peroxide are presented. The general synthesis of these peroxides involves precipitation of their octahydrates by addition of H2O2 to aqueous ...
Kraft, Patricia A., Philipp, Warren H.
core   +1 more source

Cyclic peroxides and related initiating systems for radical polymerization of methyl methacrylate [PDF]

, 2013
Cyclic peroxides as initiators for the radical polymerization of methyl methacrylate were proposed. The initial rates, initiation rates, and effective activation energies of polymerization initiated by cyclic peroxides and cyclic peroxide-1-pyridyl-2 ...
Andriyashina, N. M., Chupakhin, O. N., Ishkinina, O. I., Islamova, R. M., Nazarova, S. V., Terent'ev, A. O., Utepova, I. A.   +6 more
core   +1 more source

Natural Products as Geroprotective Modulators in Diabetic Nephropathy: A Mechanistic Framework Integrating Aging Hallmarks and the AMPK–SIRT1–Nrf2 Axis

Aging and Cancer, EarlyView.
Natural products target the aging kidney in diabetic nephropathy by restoring the AMPK–SIRT1–Nrf2 axis, reducing oxidative stress, inflammation, fibrosis, and cellular senescence while enhancing mitochondrial biogenesis and antioxidant defenses.
Sherif Hamidu, Latif Adams, Eunice Ampem‐Danso, Justice Kumi, Abigail Aning, Fatima Hamidu, Mustapha Abdul Mumin Mohammed, Ayuba Nii Darku Ankrah, Seth Kwabena Amponsah   +8 more
wiley   +1 more source

A spectrophotometric assay for lipid peroxides in serum lipoproteins using a commercially available reagent.

Journal of Lipid Research, 1989
A method is described for measuring lipid peroxides by means of the color reagent of a commercially available test kit for cholesterol estimation. In principle, this assay makes use of the oxidative capacity of lipid peroxides to convert iodide to iodine,
M el-Saadani, H Esterbauer, M el-Sayed, M Goher, A Y Nassar, G Jürgens   +5 more
doaj   +1 more source

The synthesis of higher oxides of alkali and alkaline earth metals in an electric discharge: Theoretical and experimental studies [PDF]

Potassium hydroxide was subjected to the products of an electrical discharge sustained in oxygen and produced both potassium peroxide and superoxide. The conversion to higher oxides was shown to strongly depend upon the particle size of KOH, the position
Bell, A. T., Sadhukhan, P.
core   +1 more source

Convective injection and photochemical decay of peroxides in the tropical upper troposphere: Methyl iodide as a tracer of marine convection [PDF]

, 1999
The convective injection and subsequent fate of the peroxides H2O2 and CH3OOH in the upper troposphere is investigated using aircraft observations from the NASA Pacific Exploratory Mission-Tropics A (PEM-Tropics A) over the South Pacific up to 12 km ...
Blake, DR, Cohan, DS, Heikes, BG, Jacob, DJ, Schultz, MG   +4 more
core