A reverse micellar system with Triton X-100: effect of surfactant polydispersity and preparation of monodisperse silica nanoparticles

Soft Matter ◽  
2020 ◽  
Vol 16 (2) ◽  
pp. 383-389
Author(s):  
Yaping Zhang ◽  
Bin Zhen ◽  
Yue Hu ◽  
Guohong Liang ◽  
Yaqing Feng

Polydispersity of TX-100 surfactant affects the structure of reverse micelles remarkably, and TX-100 with 5–10 EO units endows the micelles with hierarchical micellar interface, favoring for the preparation of monodisperse silica nanoparticles.

2010 ◽  
Vol 644 ◽  
pp. 47-50
Author(s):  
Alberto Gutiérrez Becerra ◽  
Tanya Vega Venegas ◽  
Maximiliano Bárcena Soto ◽  
Norberto Casillas ◽  
José Inés Escalante

The synthesis of metallic nanoparticles using a reverse microemulsion medium brings controlled size and shape. In this study, reverse micelar system was employed for the synthesis of nickel hexacyanoferrate nanoparticles, NiHCF, by direct encapsulation in the water pools of reverse micelles formed in a pseudoternary system that consist of a mixture of 95 %wt. cetyltrimetyl ammonium bromide (CTAB) and 5 %wt. of a novel modified surfactant cetyltrimetyl ammonium ferrocyanate (CTA[Fe(CN6)]4-, CTAFe)/n-butanol/Hexane/Water. These NiHCF nanoparticles were produced with particle size ranging with 20 – 60 nm.


2007 ◽  
Vol 23 (09) ◽  
pp. 1483-1486 ◽  
Author(s):  
ZHANG Yu-Xia ◽  
◽  
◽  
ZHAO Ji-Hua ◽  
DU Zhong-Yu ◽  
...  

2019 ◽  
Vol 19 (3) ◽  
pp. 737 ◽  
Author(s):  
Sharifah Fathiyah Sy Mohamad ◽  
Farhan Mohd Said ◽  
Mimi Sakinah Abdul Munaim ◽  
Shahril Mohamad

This study demonstrates the extraction of jacalin from crude extract of jackfruit seeds using anionic surfactant based reverse micellar system, sodium bis(2-ethylhexyl) sulfosuccinate (AOT) in isooctane. Effects of various parameters, such as, NaCl concentration (0.05 – 1 M), pH of aqueous phase (pH 4 – 10), AOT concentration (5 – 150 mM), contact time (5 – 30 min) and phase volume ratio (0.5-5) on the transfer efficiency of jacalin was evaluated by changing one factor at a time (OFAT) while keeping the other parameters constant. A maximum of 83% of protein transfer was achieved after equal volume of organic and aqueous phase was stirred for 20 min using 20 mM AOT at pH 5 aqueous phase containing 0.1 M NaCl. The findings demonstrated AOT reverse micellar system as a promising and effective method to extract and purify jacalin from crude protein mixture.


1999 ◽  
Vol 9 (3) ◽  
pp. 125-126 ◽  
Author(s):  
Lucia Ya. Zakharova ◽  
Farida G. Valeeva ◽  
Lyudmila A. Kudryavtseva ◽  
Elena P. Zhil’tsova

2000 ◽  
Vol 49 (2) ◽  
pp. 265-269
Author(s):  
L. Ya. Zakharova ◽  
F. G. Valeeva ◽  
L. A. Kudryavtseva ◽  
V. E. Bel'skii ◽  
E. P. Zhil'tsova ◽  
...  

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