scholarly journals A Comparative Study on the Oxidation of Label-Free Silver Triangular Nanoplates by Peroxides: Main Effects and Sensing Applications

Sensors ◽  
2020 ◽  
Vol 20 (17) ◽  
pp. 4832
Author(s):  
Aleksei Furletov ◽  
Vladimir Apyari ◽  
Alexey Garshev ◽  
Stanislava Dmitrienko
Keyword(s):  
Hydrogen Peroxide ◽  
Spectral Characteristics ◽  
Inorganic Ions ◽  
Label Free ◽  
Local Surface Plasmon Resonance ◽  
Tert Butyl ◽  
Sensing Applications ◽  
Tert Butyl Hydroperoxide ◽  
Resonance Band ◽  
Butyl Peroxide

Nowadays, analytical systems based on silver triangular nanoplates (AgTNPs) have been shown as good prospects for chemical sensing. However, they still remain relatively poorly studied as colorimetric probes for sensing various classes of compounds. This study shows that these nanoparticles are capable of being oxidized by peroxides, including both hydrogen peroxide and its organic derivatives. The oxidation was found to result in a decrease in the AgTNPs’ local surface plasmon resonance band intensity at 620 nm. This was proposed for peroxide-sensitive spectrophotometric determination. Five peroxides differing in their structure and number of functional groups were tested. Three of them easily oxidized AgTNPs. The effects of a structure of analytes and main exterior factors on the oxidation are discussed. The detection limits of peroxides in the selected conditions increased in the series peracetic acid < hydrogen peroxide < tert-butyl hydroperoxide, coming to 0.08, 1.6 and 24 μmol L−1, respectively. tert-Butyl peroxybenzoate and di-tert-butyl peroxide were found to have no effect on the spectral characteristics of AgTNPs. By the example of hydrogen peroxide, it was found that the determination does not interfere with 100–4000-fold quantities of common inorganic ions. The proposed approach was successfully applied to the analysis of drugs, cosmetics and model mixtures.

Reaction of Hypochlorous Acid with Hydrogen Peroxide and tert-Butyl Hydroperoxide. 1H NMR Spectroscopy and Chemiluminescence Analyses

1996 ◽  
Vol 51 (5-6) ◽  
pp. 386-394 ◽  
Author(s):  
Jürgen Arnhold ◽  
Oleg M. Panasenko ◽  
Jürgen Schiller ◽  
Klaus Arnold ◽  
Yurij A. Vladimirov ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Light Intensity ◽  
Singlet Oxygen ◽  
Hypochlorous Acid ◽  
Red Light ◽  
Butyl Hydroperoxide ◽  
Reactant Concentration ◽  
Tert Butyl ◽  
Tert Butyl Hydroperoxide ◽  
Butyl Peroxide

Abstract In contrast to the well-known reaction of hypochlorous acid with hydrogen peroxide, no singlet oxygen is formed as the result of reaction between hypochlorous acid and tert -butyl hydroperoxide. The reaction with hydrogen peroxide yielded a quadratic dependence of light intensity on reactant concentration, a drastic enhancement of luminescence yield using D2O as solvent and only an emission of red light, that are typical characteristics of emission result­ing from two molecules of delta singlet oxygen. Other chemiluminescence properties were observed using tert-butyl hydroperoxide. There was a linear dependence of light intensity on reactant concentration using rm-butyl hydroperoxide in excess with a decline of emission at higher concentrations. 1H-NMR spectroscopic analysis revealed di-tert-butyl peroxide, tert -butanol and also tert-butyl hypochlorite, acetone and acetate as products of the reaction between hypochlorous acid and tert -butyl hydroperoxide. The formation of di-tert-butyl peroxide is only possible assuming a tert-butyloxy radical as primary intermediate product of this reaction. Our results demonstrate that alkoxy radicals derived from organic hydroperoxides can participate in lipid peroxidation induced by hypochlorous acid. On the other hand, singlet oxygen did not influence the yield of peroxidation products. Changing H2O for D2O in suspension of egg yolk phosphaditylcholine no differences in accumulation of thiobarbituric acid reactive products were observed.

The influence of solvent on the oxidation of thioxane by hydrogen peroxide and by tert-butyl hydroperoxide

1968 ◽  
Vol 90 (12) ◽  
pp. 3209-3218 ◽  
Author(s):  
Mary A. P. Dankleff ◽  
Ruggero. Curci ◽  
John O. Edwards ◽  
Hae-Yung. Pyun
Keyword(s):  
Hydrogen Peroxide ◽  
Butyl Hydroperoxide ◽  
Tert Butyl ◽  
Tert Butyl Hydroperoxide ◽  
Influence Of Solvent

Assessment of the ability of seaweed extracts to protect against hydrogen peroxide and tert-butyl hydroperoxide induced cellular damage in Caco-2 cells

2012 ◽  
Vol 134 (2) ◽  
pp. 1137-1140 ◽  
Author(s):  
A.M. O’Sullivan ◽  
Y.C. O’Callaghan ◽  
M.N. O’Grady ◽  
B. Queguineur ◽  
D. Hanniffy ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Cellular Damage ◽  
Butyl Hydroperoxide ◽  
Tert Butyl ◽  
Seaweed Extracts ◽  
Tert Butyl Hydroperoxide

Reactions of tert-Butyl Peroxy Esters, XIV. Further Observations on the Preparation of Dialkyl tert-Butylperoxy Phosphates

1975 ◽  
Vol 30 (9-10) ◽  
pp. 732-739 ◽  
Author(s):  
G. Sosnovsky ◽  
E. H. Zaret
Keyword(s):  
Potassium Hydroxide ◽  
Potassium Hydroxide Solution ◽  
Sodium Hydride ◽  
High Yield ◽  
Butyl Hydroperoxide ◽  
Tert Butyl ◽  
Tert Butyl Hydroperoxide ◽  
Aqueous Potassium Hydroxide ◽  
Butyl Peroxide

The preparation of dialkyl tert-butylperoxy phosphates (2, R = alkyl) has been achieved by the reaction of the corresponding dialkyl phosphorochloridates (1, R = alkyl) with tert-butyl hydroperoxide either in the presence of pyridine or in the presence of aqueous potassium hydroxide solution. Neither of these routes is suitable for the preparation of dialkyl tert-butylperoxy phosphates in quantity since they yield peroxyphosphates which are contaminated either with the corresponding tetraalkyl pyrophosphates or dialkyl phosphates; the contaminants cannot easily be removed by conventional means from the peroxyphosphates. The method of choice for the preparation in high yield of large quantities of pure dialkyl tert-butylperoxy phosphates involves the interaction of the corresponding dialkyl phosphorochloridate with sodium tert-butyl peroxide which has been prepared in situ from the reaction of tert-butyl hydroperoxide with sodium hydride.

The radical versus ionic mechanisms of reduced cobalamin inactivation by tert-butyl hydroperoxide and hydrogen peroxide in aqueous solution

2021 ◽  
Author(s):  
Denis S. Salnikov ◽  
Sergei V. Makarov ◽  
Oscar I. Koifman
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Peroxide ◽  
Butyl Hydroperoxide ◽  
Tert Butyl ◽  
Tert Butyl Hydroperoxide ◽  
Ionic Mechanisms

It was demonstrated that antioxidants cannot protect reduced cobalamin against its modification by hydrogen peroxide.

scholarly journals Redox Regulation of the Tumor Suppressor PTEN by Hydrogen Peroxide and Tert-Butyl Hydroperoxide

2017 ◽  
Vol 18 (5) ◽  
pp. 982 ◽  
Author(s):  
Ying Zhang ◽  
Seong-Jeong Han ◽  
Iha Park ◽  
Inyoung Kim ◽  
Kee-Oh Chay ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Tumor Suppressor ◽  
Redox Regulation ◽  
Butyl Hydroperoxide ◽  
Tert Butyl ◽  
Tert Butyl Hydroperoxide
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