Structural Effects of the β-Vinyl Linker in Pyridinium Porphyrins: Spectroscopic Studies in Organic Solvents and AOT Reverse Micelles

2013 ◽  
Vol 117 (48) ◽  
pp. 15023-15032 ◽  
Author(s):  
Vanda Vaz Serra ◽  
Suzana M. Andrade ◽  
Eduarda M. P. Silva ◽  
Artur M. S. Silva ◽  
Maria G. P. M. S. Neves ◽  
...  
Keyword(s):  
Organic Solvents ◽  
Reverse Micelles ◽  
Spectroscopic Studies ◽  
Structural Effects ◽  
Aot Reverse Micelles

scholarly journals Reverse vesicles as a new system for studying enzymes in organic solvents

1992 ◽  
Vol 285 (2) ◽  
pp. 373-376 ◽  
Author(s):  
A Sánchez-Ferrer ◽  
F García-Carmona
Keyword(s):  
Aqueous Solution ◽  
Organic Solvents ◽  
Reverse Micelles ◽  
Active Form ◽  
Ionic Surfactant ◽  
New Approach ◽  
Optically Transparent ◽  
Reverse Vesicles ◽  
Dodecyl Ether ◽  
New System

A new approach to the study of enzyme activity in organic solvents has been developed by using optically transparent reverse vesicles. Polyphenol oxidase was incorporated in an active form into the above ternary system formed by the non-ionic surfactant tetra(ethylene glycol) dodecyl ether/n-dodecane/water. The enzyme in this microenvironment, surprisingly, showed an apparent positive co-operativity which has never before been described either in aqueous solution or in reverse micelles. In addition, the Vmax. expressed was similar to that in water and twice that displayed in reverse micelles.

scholarly journals Formose reaction accelerated in aerosol-OT reverse micelles

2016 ◽  
Vol 12 ◽  
pp. 2663-2667 ◽  
Author(s):  
Makoto Masaoka ◽  
Tomohiro Michitaka ◽  
Akihito Hashidzume
Keyword(s):  
Reverse Micelles ◽  
Water Layer ◽  
Major Product ◽  
Hexadecyltrimethylammonium Bromide ◽  
Interfacial Water ◽  
Formose Reaction ◽  
Aerosol Ot ◽  
Aot Reverse Micelles ◽  
Triton X ◽  
C Nmr

The formose reaction in reverse micelles of aerosol-OT (AOT), triton X-100 (TX), and hexadecyltrimethylammonium bromide (CTAB) was investigated. Time–conversion data have indicated that the interfacial water layer of AOT reverse micelles is a medium that accelerates formation of glycolaldehyde in the formose reaction. The 13C NMR spectra for the products of the formose reaction using formaldehyde-13C as starting material are indicative of the formation of ethylene glycol as a major product.

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