Effect of Lipophilic Tail Architecture and Solvent Engineering on the Structure of Trehalose-Based Nonionic Surfactant Reverse Micelles

2010 ◽  
Vol 114 (37) ◽  
pp. 12008-12017 ◽  
Author(s):  
Lok Kumar Shrestha ◽  
Takaaki Sato ◽  
Martin Dulle ◽  
Otto Glatter ◽  
Kenji Aramaki
Keyword(s):  
Nonionic Surfactant ◽  
Reverse Micelles ◽  
Solvent Engineering

In-Situ Formation of Silver Nanoparticles Using Nonionic Surfactant Reverse Micelles as Nanoreactors

2014 ◽  
Vol 14 (3) ◽  
pp. 2238-2244 ◽  
Author(s):  
Lok Kumar Shrestha ◽  
Rekha Goswami Shrestha ◽  
Neus Vilanova ◽  
Carlos Rodriguez-Abreu ◽  
Katsuhiko Ariga
Keyword(s):  
Silver Nanoparticles ◽  
Nonionic Surfactant ◽  
Reverse Micelles ◽  
In Situ Formation

Protein Refolding Mediated by Reverse Micelles of Cibacron Blue F-3GA Modified Nonionic Surfactant

2006 ◽  
Vol 22 (2) ◽  
pp. 499-504 ◽  
Author(s):  
X.-Y. Wu ◽  
Y. Liu ◽  
X.-Y. Dong ◽  
Y. Sun
Keyword(s):  
Nonionic Surfactant ◽  
Reverse Micelles ◽  
Protein Refolding ◽  
Cibacron Blue

scholarly journals Effect of Mixing Solvents on the Structure of Trehalose Tri-isostearate Nonionic Surfactant Reverse Micelles

2012 ◽  
Vol 27 ◽  
pp. 26-33
Author(s):  
Rekha Goswami Shrestha ◽  
Lok Kumar Shrestha
Keyword(s):  
Nonionic Surfactant ◽  
Internal Structure ◽  
Reverse Micelles ◽  
Solvent Polarity ◽  
Ambient Conditions ◽  
Subtle Difference ◽  
X Ray Scattering ◽  
Solvent Dependence ◽  
Chain Lengths ◽  
Reverse Micellar

Effects of mixing fraction of n-decane (Dec) with n-tetradecane (TD) on the shape, size, and internal structure of trehalose tri-isostearate (designated as TQ-3) nonionic surfactant reverse micelles have been investigated using small-angle X-ray scattering (SAXS) technique. TQ-3 self-assembles into a variety of reverse micellar structures in different organic solvents under ambient conditions It was found that a subtle difference in solvent polarity plays a crucial on the structure of reverse micelles. To better understand the solvent dependence of reverse micellar structure, an attempt has been made studying the effects of mixing solvents (alkanes). Three alkanes with different alkyl chain lengths; C10, C12, and C14, were considered and C10 and C14 were mixed in different mixing fractions (wt ratio). SAXS measurements were carried out on 5 wt% TQ-3 systems under ambient conditions. Micellar size and the internal structure (cross-section diameter) were found to depend on mixing fractions of solvents and could be explained in terms of packing parameter.DOI: http://dx.doi.org/10.3126/jncs.v27i1.6438 J. Nepal Chem. Soc., Vol. 27, 2011 26-33 Uploaded date: 16 July, 2012

Nonionic Surfactant Reverse Micelles of C12E4in Dodecane:  Temperature Dependence of Size and Shape

1996 ◽  
Vol 100 (37) ◽  
pp. 15180-15186 ◽  
Author(s):  
A. Merdas ◽  
M. Gindre ◽  
R. Ober ◽  
C. Nicot ◽  
W. Urbach ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
Nonionic Surfactant ◽  
Reverse Micelles ◽  
Size And Shape

Structural Characterization of Nonionic Surfactant Reverse Micelles in Diglycerol Monolaurate/Squalene System

2010 ◽  
Vol 117 ◽  
pp. 87-92
Author(s):  
Lok Kumar Shrestha ◽  
Peter Worsch ◽  
Kenji Aramaki
Keyword(s):  
Nonionic Surfactant ◽  
Cross Section ◽  
Structural Characterization ◽  
Reverse Micelles ◽  
Maximum Length ◽  
Scattering Data ◽  
Fixed Temperature ◽  
Saxs Data ◽  
Model Free

Structure of nonionic surfactant diglycerol monolaurate (C12G2) reverse micelles in squalene at different surfactant concentrations and temperatures is presented. For the structural characterization of the micelles, small-angle X-ray scattering (SAXS) technique is used. The scattering data is evaluated by virtually model free generalized indirect Fourier transformation (GIFT) method. GIFT analysis of the SAXS data has shown the clear evidence on the formation of rod-like micelles in the C12G2/squalene system at higher temperatures. At fixed temperature, increasing surfactant concentration induces one-dimensional micellar growth; the maximum length of the micelles increases with concentration, but the micellar cross-section remains essentially the same. On the other hand, at fixed concentration, the maximum length of the micelles decreases with the rise of temperature. It is found that the length of micelles decreases by ~ 35% keeping cross-section diameter unchanged with the rise of temperature from 60 to 80 °C in 5 wt% wt% C12G2/squalene system.

Structure of Polyglycerol Oleic Acid Ester Nonionic Surfactant Reverse Micelles in Decane: Growth Control by Headgroup Size

Langmuir ◽  
2010 ◽  
Vol 26 (10) ◽  
pp. 7015-7024 ◽  
Author(s):  
Lok Kumar Shrestha ◽  
Martin Dulle ◽  
Otto Glatter ◽  
Kenji Aramaki
Keyword(s):  
Oleic Acid ◽  
Nonionic Surfactant ◽  
Acid Ester ◽  
Reverse Micelles ◽  
Growth Control

Effect of Polyol on the Structure of Nonionic Surfactant Reverse Micelles in Glycerol Monoisostearate/Decane Systems

Langmuir ◽  
2010 ◽  
Vol 26 (5) ◽  
pp. 3115-3120 ◽  
Author(s):  
Lok Kumar Shrestha ◽  
Takaaki Sato ◽  
Dharmesh Varade ◽  
Kenji Aramaki
Keyword(s):  
Nonionic Surfactant ◽  
Reverse Micelles
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