Effect of Sodium Chloride and Varied Alkyl Chain Length on Aqueous Cationic Surfactant−Bile Salt Systems. Cryo-TEM and Fluorescence Quenching Studies

Langmuir ◽  
1996 ◽  
Vol 12 (9) ◽  
pp. 2173-2185 ◽  
Author(s):  
M. Swanson-Vethamuthu ◽  
M. Almgren ◽  
G. Karlsson ◽  
P. Bahadur
Keyword(s):  
Sodium Chloride ◽  
Fluorescence Quenching ◽  
Bile Salt ◽  
Chain Length ◽  
Cationic Surfactant ◽  
Alkyl Chain ◽  
Alkyl Chain Length ◽  
Salt Systems

Effects of Alkyl Chain Length on Synergetic Adsorption and Micelle Formation in Homologous Cationic Surfactant Mixtures

Langmuir ◽  
2005 ◽  
Vol 21 (18) ◽  
pp. 8131-8137 ◽  
Author(s):  
Hiroki Matsubara ◽  
Takayuki Nakano ◽  
Takashi Matsuda ◽  
Takanori Takiue ◽  
Makoto Aratono
Keyword(s):  
Chain Length ◽  
Cationic Surfactant ◽  
Alkyl Chain ◽  
Micelle Formation ◽  
Alkyl Chain Length ◽  
Surfactant Mixtures

Normal and Shear Forces between Charged Solid Surfaces Immersed in Cationic Surfactant Solution: The Role of the Alkyl Chain Length

Langmuir ◽  
2014 ◽  
Vol 30 (18) ◽  
pp. 5097-5104 ◽  
Author(s):  
Gilad Silbert ◽  
Nir Kampf ◽  
Jacob Klein
Keyword(s):  
Chain Length ◽  
Cationic Surfactant ◽  
Alkyl Chain ◽  
Surfactant Solution ◽  
Alkyl Chain Length ◽  
Solid Surfaces ◽  
Shear Forces

Effect of salt and alkyl chain length on the structure of bile salt–cationic mixed surfactant system

2004 ◽  
Vol 251 (1-3) ◽  
pp. 161-165 ◽  
Author(s):  
Dharmesh Varade ◽  
Vijay Patel ◽  
Martin Swanson Vethamuthu ◽  
Pratap Bahadur
Keyword(s):  
Bile Salt ◽  
Chain Length ◽  
Alkyl Chain ◽  
Alkyl Chain Length ◽  
Mixed Surfactant ◽  
Mixed Surfactant System ◽  
Surfactant System

scholarly journals Silver Nanoparticles Stabilized with Phosphorus-Containing Heterocyclic Surfactants: Synthesis, Physico-Chemical Properties, and Biological Activity Determination

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1883
Author(s):  
Martin Pisárčik ◽  
Miloš Lukáč ◽  
Josef Jampílek ◽  
František Bilka ◽  
Andrea Bilková ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Biological Activity ◽  
Zeta Potential ◽  
Chain Length ◽  
Alkyl Chain ◽  
Chemical Properties ◽  
Alkyl Chain Length ◽  
Microbial Pathogens ◽  
Physico Chemical ◽  
Phosphorus Containing

Phosphorus-containing heterocyclic cationic surfactants alkyldimethylphenylphospholium bromides with the alkyl chain length 14 to 18 carbon atoms were used for the stabilization of silver nanodispersions. Zeta potential of silver nanodispersions ranges from +35 to +70 mV, which indicates the formation of stable silver nanoparticles (AgNPs). Long-chain heptadecyl and octadecyl homologs of the surfactants series provided the most intensive stabilizing effect to AgNPs, resulting in high positive zeta potential values and smaller diameter of AgNPs in the range 50–60 nm. A comparison with non-heterocyclic alkyltrimethylphosphonium surfactants of the same alkyl chain length showed better stability and more positive zeta potential values for silver nanodispersions stabilized with heterocyclic phospholium surfactants. Investigations of biological activity of phospholium-capped AgNPs are represented by the studies of antimicrobial activity and cytotoxicity. While cytotoxicity results revealed an increased level of HepG2 cell growth inhibition as compared with the cytotoxicity level of silver-free surfactant solutions, no enhanced antimicrobial action of phospholium-capped AgNPs against microbial pathogens was observed. The comparison of cytotoxicity of AgNPs stabilized with various non-heterocyclic ammonium and phosphonium surfactants shows that AgNPs capped with heterocyclic alkyldimethylphenylphospholium and non-heterocyclic triphenyl-substituted phosphonium surfactants have the highest cytotoxicity among silver nanodispersions stabilized by the series of ammonium and phosphonium surfactants.

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