Triplet energies and the singlet oxygen quenching mechanism for 7H-pyrazolo[5,1-c]-1,2,4-triazole azomethine dyesDedicated to the memory of Nobel Laureate, Lord George Porter FRSC FRS OM.

2003 ◽  
Vol 2 (5) ◽  
pp. 563 ◽  
Author(s):  
Peter Douglas ◽  
Jonathan D. Thomas ◽  
Holger Strohm ◽  
Chris Winscom ◽  
Dave Clarke ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Nobel Laureate ◽  
Oxygen Quenching ◽  
Quenching Mechanism ◽  
Singlet Oxygen Quenching

Singlet oxygen quenching by trolox C in aqueous micelle solutions

2009 ◽  
Vol 97 (3) ◽  
pp. 132-137 ◽  
Author(s):  
Keishi Ohara ◽  
Kaori Kikuchi ◽  
Takashi Origuchi ◽  
Shin-ichi Nagaoka
Keyword(s):  
Singlet Oxygen ◽  
Oxygen Quenching ◽  
Singlet Oxygen Quenching ◽  
Trolox C

scholarly journals Singlet Oxygen Quenching by Phenylamides and their Parent Compounds

2007 ◽  
Vol 62 (11-12) ◽  
pp. 833-838 ◽  
Author(s):  
Violeta B. Velikova ◽  
Aglika M. Edreva ◽  
Tsonko D. Tsonev ◽  
Hamlyn G. Jones
Keyword(s):  
Singlet Oxygen ◽  
Hydroxycinnamic Acids ◽  
Oxygen Quenching ◽  
Amino Groups ◽  
Plant Metabolites ◽  
Antioxidant Defence ◽  
Enzymatic Antioxidant ◽  
Singlet Oxygen Quenching ◽  
First Time ◽  
Photosynthetic Centers

This paper demonstrates for the first time that plant metabolites of the phenylamide type, conjugates of putrescine with hydroxycinnamic acids (p-coumaric, caffeic and ferulic), possess 1O2 quenching properties. Data were obtained confirming that their acidic parent compounds were also able to quench 1O2, as did polyamines (putrescine, spermidine and spermine), and that this ability depends on the number of amino groups. Potentiation of the 1O2 quenching ability of the conjugates relative to both parent components was established. The importance of polyamines and phenylamides in the plant non-enzymatic antioxidant defence at sites of intensive 1O2 generation, such as the photosynthetic centers, was suggested.

scholarly journals Basic Investigations of Singlet Oxygen Detection Systems with ESR for the Measurement of Singlet Oxygen Quenching Activities

2020 ◽  
Vol 68 (2) ◽  
pp. 150-154 ◽  
Author(s):  
Tokuko Takajo ◽  
Yoshinori Kurihara ◽  
Kodai Iwase ◽  
Daiki Miyake ◽  
Kazunori Tsuchida ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Oxygen Quenching ◽  
Detection Systems ◽  
Oxygen Detection ◽  
Singlet Oxygen Quenching

Singlet oxygen quenching by stable nitroxy radicals

1986 ◽  
Vol 32 (2) ◽  
pp. 157-163 ◽  
Author(s):  
Alexander P. Darmanyan ◽  
Alexander S. Tatikolov
Keyword(s):  
Singlet Oxygen ◽  
Oxygen Quenching ◽  
Singlet Oxygen Quenching

scholarly journals Characterization and Singlet Oxygen Quenching Capacity of Spray-Dried Microcapsules of Edible Biopolymers Containing Antioxidant Molecules

2010 ◽  
Vol 58 (13) ◽  
pp. 8004-8011 ◽  
Author(s):  
Adelia F. Faria ◽  
Ricardo A. Mignone ◽  
Mariana A. Montenegro ◽  
Adriana Z. Mercadante ◽  
Claudio D. Borsarelli
Keyword(s):  
Singlet Oxygen ◽  
Oxygen Quenching ◽  
Singlet Oxygen Quenching ◽  
Spray Dried
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