Results 21 to 30 of about 458,211 (297)

A fast, sensitive and fluorescent LPMO activity assay

Frontiers in Microbiology, 2023
Lytic polysaccharide monooxygenases (LPMOs) are industrially relevant enzymes that utilize a copper co-factor and an oxygen species to break down recalcitrant polysaccharides.
Johan Ø. Ipsen, Katja S. Johansen, Søren Brander   +2 more
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Chalcopyrite Leaching with Hydrogen Peroxide and Iodine Species in Acidic Chloride Media at Room Temperature: Technical and Economic Evaluation

Metals, 2021
In Chile, the hydrometallurgical plants are operating below their capacity due to a depletion of copper oxide ores. To obtain suitable pregnant leach solutions (PLSs) for hydrometallurgical plants, leaching solutions combining iodine-based oxidants and ...
Germán A. Moraga, Nathalie E. Jamett, Pía C. Hernández, Teófilo A. Graber, María E. Taboada   +4 more
doaj   +1 more source

Bridged 1,2,4-Trioxolanes: SnCl₄—Catalyzed Synthesis and an In Vitro Study against S. mansoni

Molecules, 2023
A synthesis of bridged 1,2,4-trioxolanes (bridged ozonides) from 1,5-diketones and hydrogen peroxide catalyzed by SnCl4 was developed. It was shown that the ratio of target ozonides can be affected by the application of SnCl4 as a catalyst and varying ...
Peter S. Radulov, Ivan A. Yaremenko, Jennifer Keiser, Alexander O. Terent’ev   +3 more
doaj   +1 more source

Small RNA ArcZ Regulates Oxidative Stress Response Genes and Regulons in Erwinia amylovora

Frontiers in Microbiology, 2019
Erwinia amylovora, causative agent of fire blight disease of apple and pear trees, has evolved to use small RNAs for post-transcriptional regulation of virulence traits important for disease development.
Jeffrey K. Schachterle, Jeffrey K. Schachterle, Daphne M. Onsay, George W. Sundin, George W. Sundin   +4 more
doaj   +1 more source

Towards “Green” ANFO: Study of Perchlorates and Inorganic Peroxides as Potential Additives

Molecules, 2023
Ammonium nitrate–fuel oil (ANFO) explosives are inexpensive and readily produced, but are highly prone to misfires, with the remaining explosive being a significant risk and environmental contaminant.
Magdalena Fabin, Paweł Skóra, Mateusz Polis, Roman Zakusylo, Agnieszka Stolarczyk, Tomasz Jarosz   +5 more
doaj   +1 more source

Crystal structure of μ-peroxido-κ4O1,O2:O1′,O2′-bis[(nitrato-κO)(2,2′:6′,2′′-terpyridine-κ3N,N′,N′′)dioxidouranium(VI)]

Acta Crystallographica Section E: Crystallographic Communications, 2015
In the title dimeric complex, [{UO2(NO3)(C15H11N3)}2O2], a peroxide ion bridges the two uranyl(VI) [O=U=O]2+ ions. The O—O bond length of the peroxide is 1.485 (6) Å and the mid-point of this bond is located at the inversion centre of the dimer.
Takeshi Kawasaki, Takafumi Kitazawa
doaj   +1 more source

The Interaction of Hemoglobin With Sodium Dodecyl Sulfate in Presence of Ascorbic Acid [PDF]

Avicenna Journal of Medical Biochemistry, 2020
Background: Hemoglobin (Hb), oxygen, carbon dioxide, and electron transporter of the body, may enter to an oxidation process that can convert oxyhemoglobin (oxyHb) to methemoglobin (metHb) and hemichrome. Surfactants can facilitate oxidation process that
Radnoosh Mirzajani, Ebrahim Mirzajani, Heshmatollah Ebrahimi-Najafabadi   +2 more
doaj   +1 more source

Antimalarial peroxides: the first intramolecular 1,2,4,5-tetraoxane [PDF]

Journal of the Serbian Chemical Society, 2002
An intramolecular steroidal 1,2,4,5-tetraoxane has been synthesised in six steps starting from methyl 3-oxo-7a,12a-diacetoxy-5b-cholan-24-oate. The synthesised 1,2,4,5-tetraoxane has moderate in vitro antimalarial activity against P.
BOGDAN A. SOLAJA, WILBUR K. MILHOUS, GABRIELLA POCSFALVI, DEJAN OPSENICA   +3 more
doaj  

Enhancement of Mechanical and Thermal Properties of Oil Palm Empty Fruit Bunch Fiber Poly(butylene adipate-co-terephtalate) Biocomposites by Matrix Esterification Using Succinic Anhydride

Molecules, 2012
In this work, the oil palm empty fruit bunch (EFB) fiber was used as a source of lignocellulosic filler to fabricate a novel type of cost effective biodegradable composite, based on the aliphatic aromatic co-polyester poly(butylene adipate-co ...
Samira Siyamak, Nor Azowa Ibrahim, Sanaz Abdolmohammadi, Wan Md Zin Bin Wan Yunus, Mohamad Zaki AB Rahman   +4 more
doaj   +1 more source

The degree of tooth colour change after using different concentrations of carbamide peroxide [PDF]

Scripta Medica, 2019
Background: Depending on the cause of discoloration, bleaching materials and other factors, vital dental bleaching techniques may be professional (in-office dental bleaching), at-home night-guard bleaching and combined.
Knežević Nataša, Dolić Olivera, Obradović Marija, Kojić Željka, Đeri Aleksandra, Veselinović Valentina, Sukara Slava   +6 more
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