Micellar Effects upon p-n-Butylaniline Catalyzed Decarboxylation of Oxalacetic Acid

1973 ◽  
Vol 51 (12) ◽  
pp. 1959-1964 ◽  
Author(s):  
Leo Ka-Ming Lam ◽  
Donald E. Schmidt Jr.
Keyword(s):  
Sodium Dodecyl Sulfate ◽  
Cetyltrimethylammonium Bromide ◽  
Catalytic Effect ◽  
Sodium Dodecyl ◽  
Micellar Effects ◽  
Oxalacetic Acid ◽  
Cationic Micelles ◽  
Dodecyl Sulfate ◽  
Anionic Micelles

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.

The catalytic effect of the sodium dodecyl sulfate–hexanol–water reverse micellar system

1999 ◽  
Vol 9 (3) ◽  
pp. 125-126 ◽  
Author(s):  
Lucia Ya. Zakharova ◽  
Farida G. Valeeva ◽  
Lyudmila A. Kudryavtseva ◽  
Elena P. Zhil’tsova
Keyword(s):  
Sodium Dodecyl Sulfate ◽  
Catalytic Effect ◽  
Sodium Dodecyl ◽  
Micellar System ◽  
Dodecyl Sulfate ◽  
Reverse Micellar System ◽  
Reverse Micellar

Controlling the Pore Size and Connectivity of Alumina-Particle-Stabilized Foams Using Sodium Dodecyl Sulfate: Role of Surfactant Concentration

Langmuir ◽  
2020 ◽  
Vol 36 (35) ◽  
pp. 10331-10340 ◽  
Author(s):  
Yosep Han ◽  
Jiwon Yang ◽  
Minuk Jung ◽  
Seongsoo Han ◽  
Seongmin Kim ◽  
...  
Keyword(s):  
Sodium Dodecyl Sulfate ◽  
Pore Size ◽  
Surfactant Concentration ◽  
Alumina Particle ◽  
Sodium Dodecyl ◽  
Dodecyl Sulfate

Refolding of protein unfolded by gemini surfactants using β-cyclodextrin and sodium dodecyl sulfate in aqueous medium: Study on role of spacer chain of surfactants

2020 ◽  
Vol 300 ◽  
pp. 112238 ◽  
Author(s):  
Sunita Kumari ◽  
Sayantan Halder ◽  
Rishika Aggrawal ◽  
Vinod Kumar Aswal ◽  
Ganapathisubramanian Sundar ◽  
...  
Keyword(s):  
Sodium Dodecyl Sulfate ◽  
Aqueous Medium ◽  
Gemini Surfactants ◽  
Sodium Dodecyl ◽  
Medium Study ◽  
Dodecyl Sulfate

scholarly journals Eight Gram-negative bacteria are 10 000 times more sensitive to cationic detergents than to anionic detergents

2003 ◽  
Vol 49 (12) ◽  
pp. 775-779 ◽  
Author(s):  
Soumitra Rajagopal ◽  
Nicole Eis ◽  
Kenneth W Nickerson
Keyword(s):  
Sodium Dodecyl Sulfate ◽  
Cetyltrimethylammonium Bromide ◽  
Liquid Culture ◽  
Sodium Dodecyl ◽  
Homoserine Lactone ◽  
Luria Bertani ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
Cationic Detergents ◽  
Dodecyl Sulfate

In liquid culture, eight typical Gram-negative bacteria were ca. 10 000-fold more sensitive to cationic detergents than to the anionic detergent sodium dodecyl sulfate. Cetyltrimethylammonium bromide (CTAB) was inhibitory at concentrations ranging from 0.0006% to 0.01%. Four pseudomonads able to form biofilms were ca. 1000-fold more resistant to CTAB on Luria–Bertani agar plates than they were in liquid culture. A lasI mutant of Pseudomonas aerugi nosa was only able to tolerate 0.1% CTAB on Luria–Bertani agar plates but could tolerate 5% CTAB when supplemented with homoserine lactone containing culture supernatants.Key words: sodium dodecyl sulfate, cetyltrimethylammonium bromide, bacterial detergent resistance, homoserine lactones, Pseudomonas biofilms.

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