ACC-Oxidase like activity of a copper (ii)–ACC complex in the presence of hydrogen peroxide. Detection of a reaction intermediate at low temperature

2006 ◽  
pp. 1027 ◽  
Author(s):  
Wadih Ghattas ◽  
Christian Gaudin ◽  
Michel Giorgi ◽  
Antal Rockenbauer ◽  
A. Jalila Simaan ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Low Temperature ◽  
Acc Oxidase ◽  
Reaction Intermediate ◽  
Hydrogen Peroxide Detection

scholarly journals Characterization of Cu(II)-ACC Complexes and Conversion of the Bound ACC into Ethylene in the Presence of Hydrogen Peroxide. Detection of a Brown Intermediate at Low Temperature

2007 ◽  
Vol 2007 ◽  
pp. 1-9 ◽  
Author(s):  
Wadih Ghattas ◽  
Michel Giorgi ◽  
Christian Gaudin ◽  
Antal Rockenbauer ◽  
Marius Réglier ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Low Temperature ◽  
Absorption Band ◽  
Acc Oxidase ◽  
Optimum Activity ◽  
Hydrogen Peroxide Detection ◽  
Crystallographic Structures ◽  
Uv Visible ◽  
Reaction In Water

Two copper(II)-ACC complexes were prepared and characterized: [Cu(bpy)(ACC)(H2O)]⋅CO4(1) and[Cu(ACC)2]3⋅4H2O(2). Their crystallographic structures are described and analyzed. Spectroscopic characterizations (UV-visible and EPR) confirm that the structure is maintained in solution. These complexes are able to produce ethylene in the presence of hydrogen peroxide in an “ACC Oxidase-like” reaction in water and in methanol. The conversion of ACC into ethylene depends on the amount of base, and, in methanol, 3 equivalents of NaOH are needed for optimum activity. The base is proposed to play a role inH2O2deprotonation. The presence of an exogenic ligand (bpy) is important for the reactivity and may stabilize a reaction intermediate. Indeed, a brown intermediate with an absorption band centered at 433 nm can be detected at low temperature when1is treated with 10 equivalents ofH2O2.

scholarly journals Franz cells for facile biosensor evaluation: A case of HRP/SWCNT-based hydrogen peroxide detection via amperometric and wireless modes

2021 ◽  
pp. 113420
Author(s):  
Van Chinh Hoang ◽  
Atefeh Shafaat ◽  
Skaidre Jankovskaja ◽  
Vincent G. Gomes ◽  
Tautgirdas Ruzgas
Keyword(s):  
Hydrogen Peroxide ◽  
Hydrogen Peroxide Detection ◽  
Franz Cells
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