ChemInform Abstract: STUDIES OF THE CHEMILUMINESCENCE OF SEVERAL XANTHENE DYES PART 6, A KINETIC ANALYSIS OF A BLUE-FLUORESCENT PRODUCT IN THE CHEMILUMINESCENT REACTION OF EOSIN Y WITH HYDROGEN PEROXIDE

1974 ◽  
Vol 5 (43) ◽  
Author(s):  
ISAO KAMIYA ◽  
KEIZO AOKI
Keyword(s):  
Hydrogen Peroxide ◽  
Kinetic Analysis ◽  
Eosin Y ◽  
Fluorescent Product ◽  
Xanthene Dyes ◽  
Chemiluminescent Reaction

Catalytic Degradation of Orange II by MnIII(TPPS) in Basic Hydrogen Peroxide Medium: A Detailed Kinetic Analysis

2018 ◽  
Vol 2018 (30) ◽  
pp. 3462-3471 ◽  
Author(s):  
Magdalena Procner ◽  
Łukasz Orzeł ◽  
Grażyna Stochel ◽  
Rudi van Eldik
Keyword(s):  
Hydrogen Peroxide ◽  
Kinetic Analysis ◽  
Catalytic Degradation ◽  
Orange Ii ◽  
Basic Hydrogen Peroxide

scholarly journals Evaluation of the photodynamic activity of Xanthene Dyes on Artemia salina described by chemometric approaches

2013 ◽  
Vol 85 (4) ◽  
pp. 1267-1274 ◽  
Author(s):  
Diogo S. Pellosi ◽  
Vagner R. Batistela ◽  
Vagner R. de Souza ◽  
Ieda S. Scarminio ◽  
Wilker Caetano ◽  
...  
Keyword(s):  
Rose Bengal ◽  
Irradiation Time ◽  
Drug Evaluation ◽  
Artemia Salina ◽  
Light Sources ◽  
Eosin Y ◽  
Xanthene Dyes ◽  
Photodynamic Activity ◽  
New Bioassay ◽  
Led Irradiation

The development of drugs for photodynamic therapy (PDT) is an important area of research due to their growing use in medical applications. Therefore, it is important to develop new bioassay methods for PDT photosensitizers that are inexpensive, easy to handle and highly sensitive to environmental conditions. Xanthene dyes (fluorescein, rose bengal B, erythrosine B and eosin Y) with LED light sources were investigated using Artemia salina as a bioindicator of photodynamic activity. In this study, three factors were investigated: (i) photosensitizers concentration, (ii) the LED irradiation time and (iii) the waiting time between the addition of the photosensitizers and the beginning of the irradiation. To analyze the photo-killing of A. salina, it was employed a 23 full factorial design. The death of A. salina was related to dye structure and the interaction between the irradiation time and the photosensitizers concentration. About 60% of crustaceans death was obtained using rose bengal B, which presentes the highest quantum yield of singlet oxygen due to the number of iodide substituents in the xanthenes ring. The proposed bioassay using A. salina, xanthene dyes and LED irradiation was found suitable for quantitative PDT drug evaluation.

scholarly journals Flow Injection Analysis with Microdialysis Probes Enable Minimally Invasive and Dynamic H2O2 Measurements

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 992
Author(s):  
Maria Moßhammer ◽  
Klaus Koren ◽  
Michael Kühl
Keyword(s):  
Hydrogen Peroxide ◽  
Flow Injection ◽  
Flow Injection Analysis ◽  
H2o2 Concentration ◽  
Chemiluminescent Reaction ◽  
Online Measurements ◽  
Flow Injection Analysis System ◽  
Analysis System ◽  
Acridinium Ester

This paper describes the optimization of a published flow injection analysis system coupled with microdialysis probes (MDP-FIA) for in-situ sampling and online measurements of hydrogen peroxide (H2O2). By modifying the commonly used Na2CO3 buffer by addition of EDTA and a changed order in reagent injection, interfering transition metals such as Fe(II) and Fe(III) are complexed and removed from the system without interfering with the chemiluminescent reaction of the used acridinium ester and H2O2. The system was then used to monitor changes in H2O2 concentration upon microwaving seawater and filtered seawater in the presence and absence of agar.

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