Sodium Dodecyl Sulfate Micellar Effects on the Reaction between Arenediazonium Ions and Ascorbic Acid Derivatives

Langmuir ◽  
2003 ◽  
Vol 19 (13) ◽  
pp. 5197-5203 ◽  
Author(s):  
U. Costas-Costas ◽  
Carlos Bravo-Diaz ◽  
Elisa Gonzalez-Romero
1999 ◽  
Vol 23 (11) ◽  
pp. 644-645
Author(s):  
Tsuyoshi Kaneko ◽  
Kanji Kubo ◽  
Tadamitsu Sakurai

The title hydroxylamine in sodium dodecyl sulfate micelles containing benzophenone is subjected to photorearrangements giving benzoyloxy- and phenyl-migrated products along with fragmentation products; subsequent photohydrolysis of the 1,5-benzoyloxy-rearranged product proceeds selectively.


2020 ◽  
Vol 8 (1) ◽  
pp. 21-26
Author(s):  
Radnoosh Mirzajani ◽  
Ebrahim Mirzajani ◽  
Heshmatollah Ebrahimi-Najafabadi

Background: Hemoglobin (Hb), oxygen, carbon dioxide, and electron transporter of the body, may enter to an oxidation process that can convert oxyhemoglobin (oxyHb) to methemoglobin (metHb) and hemichrome. Surfactants can facilitate oxidation process that may accumulate hemichrome in red blood cells. Methods: In the present study, the interaction of purified Hb with sodium dodecyl sulfate (SDS, 0-5 mM) and ascorbic acid (AA, 0-5 mM) was evaluated by UV-Vis spectroscopy and multivariate curve resolution techniques. Results: Reconstructed spectral and concentration profiles showed three forms of Hb name as oxyHb, metHb, and hemichrome with lack of fit values less than 1.85%. AA hindered the oxidation process of Hb. Conclusion: A decrease in critical micelle concentration of SDS in the presence of AA and interaction of AA with hydrogen peroxide, which is produced during the interaction of Hb with SDS, are two reasons for diminution in the oxidation process of Hb when accompanied with AA.


1973 ◽  
Vol 51 (12) ◽  
pp. 1959-1964 ◽  
Author(s):  
Leo Ka-Ming Lam ◽  
Donald E. Schmidt Jr.

p-n-Butylaniline ([nBA] = 1 × 10−3 M) incorporated in cationic micelles of cetyltrimethylammonium bromide ([CTABr] = 6 × 10−3M) was found to enhance the rate of decarboxylation of oxalacetic acid (OAA) 45-fold while nBA alone only increases the rate six-fold as compared to the rate of spontaneous decarboxylation at the same pH. Anionic micelles of sodium dodecyl sulfate ([SDS] = 6 × 10−3 M) completely inhibited the catalytic effect of nBA. Together with the effects of added salts and the change of pH on the rate of the reaction the role of micelles in the decarboxylation of OAA is discussed.


2008 ◽  
Vol 53 (6) ◽  
pp. 3013-3020 ◽  
Author(s):  
Georgina Alarcón-Angeles ◽  
Silvia Corona-Avendaño ◽  
Manuel Palomar-Pardavé ◽  
Alberto Rojas-Hernández ◽  
Mario Romero-Romo ◽  
...  

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