Phase-boundary catalysis: a new approach in alkene epoxidation with hydrogen peroxide by zeolite loaded with alkylsilane-covered titanium oxide

2000 ◽  
pp. 2235-2236 ◽  
Author(s):  
Hadi Nur ◽  
Shigeru Ikeda ◽  
Bunsho Ohtani
Keyword(s):  
Hydrogen Peroxide ◽  
Phase Boundary ◽  
Titanium Oxide ◽  
New Approach

Highly porous Pd nanostructures and reduced graphene hybrids: excellent electrocatalytic activity towards hydrogen peroxide

2016 ◽  
Vol 40 (2) ◽  
pp. 1096-1099 ◽  
Author(s):  
Subash Chandra Sahu ◽  
Tapan Kumar Behera ◽  
Ajit Dash ◽  
Bijayalaxmi Jena ◽  
Arnab Ghosh ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Electrocatalytic Activity ◽  
New Approach ◽  
Reduced Graphene ◽  
Highly Porous

A new approach has been developed for highly porous Pd nanostructure–graphene hybrids as efficient electrocatalysts towards reduction of H2O2.

scholarly journals Localization of cerium-based reaction products by scanning laser reflectance confocal microscopy.

1990 ◽  
Vol 38 (3) ◽  
pp. 315-318 ◽  
Author(s):  
J M Robinson ◽  
B E Batten
Keyword(s):  
Hydrogen Peroxide ◽  
Confocal Microscopy ◽  
Scanning Laser ◽  
Reaction Products ◽  
Laser Confocal Microscopy ◽  
Light Microscope Level ◽  
New Approach ◽  
Detection Systems ◽  
Laser Reflectance ◽  
Hydrogen Peroxide Release

Scanning laser confocal microscopy was utilized to visualize sites of hydrogen peroxide release from stimulated neutrophils and lysosomal acid phosphatase in these and other cells using cerium in the detection systems. Imaging of the cerium-containing reactions was achieved by employing the reflectance mode of this instrument. Localization of these products at the light microscope level was direct and did not require other reactions to generate a visible product. This new approach to cerium cytochemistry should prove useful for many applications.

Evaluation of Horseradish Peroxidase for the Treatment of Estrogenic Alkylphenols

2005 ◽  
Vol 40 (2) ◽  
pp. 145-154 ◽  
Author(s):  
Monika Wagner ◽  
James A. Nicell
Keyword(s):  
Hydrogen Peroxide ◽  
Reaction Time ◽  
Horseradish Peroxidase ◽  
Estrogenic Activity ◽  
Complete Disappearance ◽  
Reaction Products ◽  
Compound A ◽  
New Approach ◽  
Microtox Toxicity ◽  
High Degree

Abstract The xenoestrogen alkylphenols 4-nonylphenol (3.4 mg/L) and octylphenol (6.0 mg/L) were oxidized by hydrogen peroxide using horseradish peroxidase (HRP) as a biocatalyst. Substrate transformation required about one mole of peroxide per mole of phenolic compound. A high degree of conversion of alkylphenol was achieved within a 3-h reaction time. In the case of 4-nonylphenol, HRP treatment led to complete disappearance of Microtox toxicity. Results of the yeast estrogen screen (YES) assay demonstrated that the reaction products of HRP-catalyzed 4-nonylphenol conversion lacked estrogenic activity. A new approach to the YES assay has been suggested based on observations made during this study.

Mapping the surface (hydr)oxo-groups of titanium oxide and its interface with an aqueous solution: The state of the art and a new approach

2008 ◽  
Vol 142 (1-2) ◽  
pp. 20-42 ◽  
Author(s):  
George D. Panagiotou ◽  
Theano Petsi ◽  
Kyriakos Bourikas ◽  
Christos S. Garoufalis ◽  
Athanassios Tsevis ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Titanium Oxide ◽  
State Of The Art ◽  
The State ◽  
New Approach

scholarly journals Low temperature oxidation of o-xylene with hydrogen peroxide in the presence of vanadium xerogels

2017 ◽  
pp. 26-31
Author(s):  
Nurlykyz Yesmurzaeva ◽  
Roza Tursunova ◽  
Bagadat Selenova ◽  
Daulet Kaldybekov ◽  
Sarkyt Kudaibergenov
Keyword(s):  
Hydrogen Peroxide ◽  
Catalytic Activity ◽  
Titanium Oxide ◽  
Oxidation Process ◽  
High Catalytic Activity ◽  
Vanadium Catalyst ◽  
Low Temperature Oxidation ◽  
Temperature Oxidation ◽  
Mild Conditions ◽  
Physicochemical Methods

The present work is dedicated to investigation of vanadium xerogels deposited on titanium oxide for the oxidation process of o-xylene by hydrogen peroxide under the mild conditions. The structure of deposited vanadium catalyst and sizes of vanadium xerogels nanoparticles were investigated by physicochemical methods. The nano-sized particles (5-8 nm) of xerogel vanadium deposited on titanium oxide exhibit high catalytic activity in the decomposition of hydrogen peroxide and in the oxidation of o-xylene by hydrogen peroxide under mild conditions.

scholarly journals Facile Fabrication of Oxygen-Releasing Tannylated Calcium Peroxide Nanoparticles

Materials ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 3864
Author(s):  
Ji Sun Park ◽  
Yeong Jun Song ◽  
Yong Geun Lim ◽  
Kyeongsoon Park
Keyword(s):  
Hydrogen Peroxide ◽  
Calcium Chloride ◽  
Tannic Acid ◽  
Calcium Ions ◽  
Precursor Solution ◽  
Acidic Environment ◽  
Calcium Peroxide ◽  
New Approach ◽  
Oxygen Generation ◽  
Facile Fabrication

This study reports a new approach for the facile fabrication of calcium peroxide (CaO2) nanoparticles using tannic acid (TA) as the coordinate bridge between calcium ions. Tannylated-CaO2 (TA/CaO2) nanoparticles were prepared by reacting calcium chloride (CaCl2) with hydrogen peroxide (H2O2) in ethanol containing ammonia and different amounts of TA (10, 25, and 50 mg). The prepared TA/CaO2 aggregates consisted of nanoparticles 25–31 nm in size. The nanoparticles prepared using 10 mg of TA in the precursor solution exhibited the highest efficiency for oxygen generation. Moreover, the oxygen generation from TA (10 mg)/CaO2 nanoparticles was higher in an acidic environment.

Titanium oxide nano-radiosensitizers for hydrogen peroxide delivery into cancer cells

2020 ◽  
pp. 111451
Author(s):  
Kenta Morita ◽  
Yuya Nishimura ◽  
Satoko Nakamura ◽  
Yuki Arai ◽  
Chiya Numako ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Cancer Cells ◽  
Titanium Oxide

Detoxification of Anatoxin in Peanut Meal by Hydrogen Peroxide

1967 ◽  
Vol 50 (2) ◽  
pp. 350-354 ◽  
Author(s):  
V Sreenivasamurthy ◽  
H A B Parpia ◽  
S Srikanta ◽  
A Shankar Murti
Keyword(s):  
Heat Treatment ◽  
Hydrogen Peroxide ◽  
Peanut Meal ◽  
New Approach ◽  
Biological Tests

Abstract A new approach to destroy aflatoxin in toxic peanut meal has been described. It involves heat treatment of the meal at 80°C for ½ hour with hydrogen peroxide at a pH of 9.5. The destruction of aflatoxin is confirmed by biological tests, using ducklings and duck embryos.

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