Results 21 to 30 of about 486,909 (255)

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

open access: yesActa 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

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

open access: yesMolecules, 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   +4 more
doaj   +1 more source

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

open access: yesScripta 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   +6 more
doaj  

Green process for adipic acid synthesis: oxidation by hydrogen peroxide in water micromelusions using Benzalkonium Chloride C12-14 surfactant [PDF]

open access: yes, 2012
Adipic acid was synthesized by the oxidation of cyclohexene using 30% hydrogen peroxide in a microemulsion in the presence of sodium tungstate as catalyst.
Quesada-Peñate, Isariebel   +3 more
core   +1 more source

Antimalarial, antimycobacterial and antiproliferative activity of phenyl substituted mixed tetraoxanes [PDF]

open access: yesJournal of the Serbian Chemical Society, 2003
Mixed tetraoxanes of the 4”-phenyl-substituted cyclohexyl-spirotetraoxacyclohexyl-spirocholate series have been prepared and evaluated as possible antimalarials, antiproliferatives and antimycobacterials.
BOGDAN A. SOLAJA   +3 more
doaj   +3 more sources

GlnR Activation Induces Peroxide Resistance in Mycobacterial Biofilms

open access: yesFrontiers in Microbiology, 2018
Mycobacteria spontaneously form surface-associated multicellular communities, called biofilms, which display resistance to a wide range of exogenous stresses. A causal relationship between biofilm formation and emergence of stress resistance is not known.
Yong Yang   +5 more
doaj   +1 more source

A Cysteine Pair Controls Flavin Reduction by Extracellular Cytochromes during Anoxic/Oxic Environmental Transitions

open access: yesmBio, 2023
Many bacteria of the genus Shewanella are facultative anaerobes able to reduce a broad range of soluble and insoluble substrates, including Fe(III) mineral oxides.
Michael P. Norman   +8 more
doaj   +1 more source

Teeth bleaching with Epic diode laser 940 nm (Biolase USA) [PDF]

open access: yesRomanian Journal of Stomatology, 2020
Tooth bleaching is a simple, minimally invasive cosmetic procedure, with important benefits in dental cosmetics and frequently requested by patients. Clinical case presentation.
Dana Andreea Tudose, Cornelia Biclesanu
doaj   +1 more source

Study on the Beef Pigments

open access: yesActa Universitatis Cibiniensis. Series E: Food Technology, 2013
Myoglobin, meat pigment is an iron containing protein found in muscle consisting of heme connected to a single proteide chain. Color is the most important factor in meat products influencing the consumer purchase decision and affecting the perception of ...
Drăghici Olga   +4 more
doaj   +1 more source

Platinum Nanoparticle Inclusion into a Carbonized Polymer of Intrinsic Microporosity: Electrochemical Characteristics of a Catalyst for Electroless Hydrogen Peroxide Production

open access: yesNanomaterials, 2018
The one-step vacuum carbonization synthesis of a platinum nano-catalyst embedded in a microporous heterocarbon (Pt@cPIM) is demonstrated. A nitrogen-rich polymer of an intrinsic microporosity (PIM) precursor is impregnated with PtCl62− to give ...
Robert K. Adamik   +13 more
doaj   +1 more source

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