Sugar-Derived Tricatenar Catanionic Surfactant: Self-Assembly and Aggregation Behavior in the Cationic-Rich Side of the System

Langmuir ◽  
2008 ◽  
Vol 24 (17) ◽  
pp. 9260-9267 ◽  
Author(s):  
Denis Vivares ◽  
Elodie Soussan ◽  
Muriel Blanzat ◽  
Isabelle Rico-Lattes
Keyword(s):  
Self Assembly ◽  
Aggregation Behavior ◽  
Catanionic Surfactant ◽  
Rich Side

scholarly journals Fabrication of nanostructures through self-assembly of non-ionic amphiphiles for biomedical applications

RSC Advances ◽  
2017 ◽  
Vol 7 (36) ◽  
pp. 22121-22132 ◽  
Author(s):  
Suchita Prasad ◽  
Katharina Achazi ◽  
Christoph Böttcher ◽  
Rainer Haag ◽  
Sunil K. Sharma
Keyword(s):  
Self Assembly ◽  
Biomedical Applications ◽  
Aggregation Behavior ◽  
Enzymatic Method ◽  
Supramolecular Aggregation

Non-cytotoxic and non-ionic amphiphiles having supramolecular aggregation behavior were synthesized from biocompatible starting materials using a “greener” chemo-enzymatic method.

Interplay between bulk self-assembly, interfacial and foaming properties in a catanionic surfactant mixture of varying composition

Soft Matter ◽  
2017 ◽  
Vol 13 (39) ◽  
pp. 7197-7206 ◽  
Author(s):  
José Ferreira ◽  
Alesya Mikhailovskaya ◽  
Alexis Chenneviere ◽  
Frédéric Restagno ◽  
Fabrice Cousin ◽  
...  
Keyword(s):  
Self Assembly ◽  
Solution Viscosity ◽  
Foaming Properties ◽  
Mixing Ratio ◽  
Surfactant Mixture ◽  
Catanionic Surfactant ◽  
Bulk Nanostructures ◽  
And Control ◽  
Foam Drainage

Bulk nanostructures and foaming vary markedly with surfactant mixing ratio. Aggregates are unchanged inside foam and control foam drainage through solution viscosity.

scholarly journals Tadpole-Shaped POSS-Based Copolymers and the Aggregation Behavior at Air/Water Interface

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Lin Zhu ◽  
Fang Chen ◽  
Xiaoyan Ma ◽  
Xiu Qiang ◽  
Zhiguang Li ◽  
...  
Keyword(s):  
Thin Film ◽  
Block Copolymers ◽  
Surface Pressure ◽  
Self Assembly ◽  
Aggregation Behavior ◽  
Structure Evolution ◽  
Interfacial Rheology ◽  
Water Interface ◽  
Block Sequence ◽  
Air Water Interface

The aggregation behavior of three tadpole-shaped Polyhedral oligomeric silsesquioxane (POSS) based block copolymers using different blocks poly(methyl methacrylate) (PMMA) and poly(trifluoroethyl methacrylate) (PTFEMA) with different block sequence and ratio (POSS-PTFEMA161-b-PMMA236, POSS-PMMA277-b-PTFEMA130, and POSS-PMMA466-b-PTFEMA172) was investigated on the air-water interface. The interfacial rheology of three block copolymers was studied by surface pressure isotherm, compression modulus measurements, and compression and expansion hysteresis analysis on the Langmuir trough. The block sequence and ratio play a great role in self-assembly behavior at the interface. Based on surface pressure isotherm analysis, a thin film with low elasticity was achieved for the POSS-PTFEMA161-b-PMMA236. Moreover, for the block copolymer with same segment sequence (POSS-PMMA2-b-PTFEMA), the thin film compression capability is increased with increasing the PMMA ratio. The morphology of the deposited LB thin film was illustrated by atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). We observed that a thin film was composed by crater-shaped quasi-2D micelles for POSS-PTFEMA-b-PMMA, while it was proved that only flaky texture was observed for both POSS-PMMA277-b-PTFEMA130 and POSS-PMMA466-b-PTFEMA172. The thickness and area of flaky aggregates were greatly related to PMMA ratio. The different interface self-assembly structure evolution was proposed based on the interfacial rheology and thin film morphology studies.

scholarly journals Evaluating Effect of Metallic Ions on Aggregation Behavior of Amyloid Aβ42 by AFM Imaging and SERS

2021 ◽  
Author(s):  
Yang Xie ◽  
Lin Yu ◽  
Yuna Fu ◽  
Heng Sun ◽  
Chundong Liu ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Self Assembly ◽  
Metal Cations ◽  
Aggregation Behavior ◽  
Metallic Ions ◽  
Gold Substrate ◽  
Self Assembled Monolayer ◽  
Afm Imaging ◽  
Surface Enhanced Raman ◽  
Aggregation Behaviors

Abstract In this study, self-assembled monolayer (SAM) method was employed to fabricate monolayer of β-amyloid peptides Aβ42 on gold substrate with a bolaamphiphile named thiol (MHA). Firstly, the samples of gold substrate (blank control), the MHA-modified substrate and the Aβ42-modified substrate were detected by X-ray photoelectron spectroscopy (XPS) to track the self-assembly process. The spectra of binding energy measured from these three sample surfaces could be well fitted with the corresponding monolayer’s composition, which means Aβ42 monolayer is well formed. Aggregation behaviors of Aβ42 in the absence and presence of metallic ions (Zn2+、Ca2+、Al3+) were then monitored by atomic force microscopy (AFM) and surface-enhanced Raman Scattering (SERS), respectively. The recorded surface morphology of different experimental groups obtained by AFM showed markedly different nanostructures, indicating occurrence of aggregation behaviors of Aβ42. In solutions with added metal ions, the increased size of surface structures was observed, which suggest the presence of metal cations promotes aggregation behavior between Aβ42 molecules. Furtherly, the interaction between Aβ42 and metal cations was investigated by SERS. The results demonstrate that the Raman strength of Aβ42 changes after the metal cation treatment. Taken together, the combined AFM imaging and Raman analyses show that the three kinds of metallic ions promote the process of Aβ42 aggregation.

scholarly journals Scrutinizing Self-Assembly, Surface Activity and Aggregation Behavior of Mixtures of Imidazolium Based Ionic Liquids and Surfactants: A Comprehensive Review

2021 ◽  
Vol 9 ◽  
Author(s):  
Harsh Kumar ◽  
Gagandeep Kaur
Keyword(s):  
Ionic Liquids ◽  
Surface Activity ◽  
Oil Recovery ◽  
Self Assembly ◽  
Carbon Capture ◽  
Aggregation Behavior ◽  
The Self ◽  
Mixed Micellization ◽  
Treatment Technologies ◽  
Surface Active

The desire of improving various processes like enhanced oil recovery (EOR), water treatment technologies, biomass extraction, organic synthesis, carbon capture etc. in which conventional surfactants have been traditionally utilized; prompted various researchers to explore the self-assembly and aggregation behavior of different kinds of surface-active molecules. Ionic liquids (ILs) with long alkyl chain present in their structure constitute the advantageous properties of surfactant and ILs, hence termed as surface-active ionic liquids (SAILs). The addition of ILs and SAILs significantly influence the surface-activity and aggregation behavior of industrially useful conventional surfactants. After a brief review of ILs, SAILs and surfactants, the prime focus is made on analyzing the self-assembly of SAILs and the mixed micellization behavior of conventional surfactants with different ILs.

Sugar-Derived Tricatenar Catanionic Surfactant:  Synthesis, Self-Assembly Properties, and Hydrophilic Probe Encapsulation by Vesicles

Langmuir ◽  
2008 ◽  
Vol 24 (6) ◽  
pp. 2326-2330 ◽  
Author(s):  
Elodie Soussan ◽  
Caroline Mille ◽  
Muriel Blanzat ◽  
Pascal Bordat ◽  
Isabelle Rico-Lattes
Keyword(s):  
Self Assembly ◽  
Catanionic Surfactant ◽  
Surfactant Synthesis
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