NMR study of micellar microstructures of cationic single-chain and gemini surfactants and their mixtures with nonionic surfactant n-dodecyl-β-d-maltoside

2008 ◽  
Vol 322 (1-3) ◽  
pp. 40-46 ◽  
Author(s):  
Qiuqing Yang ◽  
Qiong Zhou ◽  
P. Somasundaran
Keyword(s):  
Nonionic Surfactant ◽  
Gemini Surfactants ◽  
Single Chain ◽  
Nmr Study

scholarly journals On the Difference between Self-Assembling Process of Monomeric and Dimeric Surfactants with the Same Head to Tail Ratio: A Lattice Monte Carlo Simulation

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Reza Behjatmanesh-Ardakani ◽  
Maryam Farsad
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Gemini Surfactants ◽  
Chain Structure ◽  
Single Chain ◽  
Lattice Monte Carlo ◽  
Self Assembling ◽  
Spacer Group ◽  
The Difference ◽  
Dimeric Surfactants

Experimental data show that gemini surfactants have critical micelle concentrations that are almost tenfold lower than the CMCs of single chain ones. It is believed that the spacer groups play an important role in this subject. Short hydrophilic or long hydrophobic spacers can reduce CMC dramatically. In this paper, self-assembling processes of double-chain and one-chain surfactants with the same head to tail ratio are compared. Dimeric chain structure is exactly double of single chain. In other words, hydrophilic-lyophilic balances of two chain models are the same. Two single chains are connected head-to-head to form a dimeric chain, without introducing extra head or tail beads as a spacer group. Premicellar, micellar, and shape/phase transition ranges of both models are investigated. To do this, lattice Monte Carlo simulation in canonical ensemble has been used. Results show that without introducing extra beads as spacer group, the CMC of (H3T3)2as a dimeric surfactant is much lower than the CMC of its similar single chain, H3T3. For dimeric case of study, it is shown that bolaform aggregates are formed.

An NMR Study of Translational Diffusion and Structural Anisotropy in Magnetically Alignable Nonionic Surfactant Mesophases

Langmuir ◽  
2005 ◽  
Vol 21 (8) ◽  
pp. 3311-3321 ◽  
Author(s):  
Anand Yethiraj ◽  
Donatella Capitani ◽  
Nicholas E. Burlinson ◽  
E. Elliott Burnell
Keyword(s):  
Nonionic Surfactant ◽  
Translational Diffusion ◽  
Structural Anisotropy ◽  
Nmr Study

scholarly journals Spectroscopic studies on the comparative refolding of guanidinium hydrochloride denatured hen egg-white lysozyme and Rhizopus niveus lipase assisted by cationic single-chain/gemini surfactants via artificial chaperone protocol

RSC Advances ◽  
2017 ◽  
Vol 7 (45) ◽  
pp. 28452-28460 ◽  
Author(s):  
Nuzhat Gull ◽  
Mohd Ishtikhar ◽  
Md. Sayem Alam ◽  
Syedah Noorul Sabah Andrabi ◽  
Rizwan Hasan Khan
Keyword(s):  
Gemini Surfactants ◽  
Spectroscopic Studies ◽  
Egg White ◽  
Hen Egg White Lysozyme ◽  
Single Chain ◽  
Artificial Chaperone ◽  
Egg White Lysozyme ◽  
Hen Egg White ◽  
Rhizopus Niveus ◽  
Hen Egg

Referred to as second generation surfactants, the gemini surfactants have shown promise in various potential areas of surfactant application.

scholarly journals Correction: Spectroscopic studies on the comparative refolding of guanidinium hydrochloride denatured hen egg-white lysozyme and Rhizopus niveus lipase assisted by cationic single-chain/gemini surfactants via artificial chaperone protocol

RSC Advances ◽  
2017 ◽  
Vol 7 (50) ◽  
pp. 31610-31610
Author(s):  
Nuzhat Gull ◽  
Mohd Ishtikhar ◽  
Md. Sayem Alam ◽  
Syedah Noorul Sabah Andrabi ◽  
Rizwan Hasan Khan
Keyword(s):  
Gemini Surfactants ◽  
Spectroscopic Studies ◽  
Egg White ◽  
Hen Egg White Lysozyme ◽  
Single Chain ◽  
Artificial Chaperone ◽  
Egg White Lysozyme ◽  
Hen Egg White ◽  
Rhizopus Niveus ◽  
Hen Egg

Correction for ‘Spectroscopic studies on the comparative refolding of guanidinium hydrochloride denatured hen egg-white lysozyme and Rhizopus niveus lipase assisted by cationic single-chain/gemini surfactants via artificial chaperone protocol’ by Nuzhat Gull et al., RSC Adv., 2017, 7, 28452–28460.

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