Two sides of the coin. Part 1. Lipid and surfactant self-assembly revisited

Ninham, Barry W.; Larsson, Kåre; Nostro, Pierandrea Lo

doi:10.1016/j.colsurfb.2017.01.022

Cited by 30 publications

(45 citation statements)

References 107 publications

(123 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Variation of solution conditions like pH, surfactant and salt concentration, ion pair, temperature, and solvent compostion, allow VES amphiphiles to form a rich diversity of nanostructures. These are determined by a surfactant packing parameter ( p ) …”

Section: Introductionmentioning

confidence: 71%

“…Packing parameter. In order to predict the shape of the aggegates formed by Asc‐OL in water we estimated the packing parameter p of the surfactant which is given by:

true p = \frac{v_{H}}{a_{P} l_{H}}

…”

Section: Resultsmentioning

confidence: 99%

“…Combining these values, we obtain p ≈ 0.3. This indicates that the surfactant is expected to form spherical particles dispersed in water . We will use this information later when we discuss the SAXS results for the aqueous solutions of Asc‐OL.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Ascorbyl‐6‐O‐oleate: A Bioconjugate Antioxidant Lipid

et al. 2020

Self Cite

View full text Add to dashboard Cite

Ascorbyl‐6‐O‐oleate (Asc‐OL) was synthesized enzimatically and studied in the pure state and in aqueous dispersions. Small‐angle X‐ray scattering (SAXS), differential scanning calorimetry (DSC), Fourier transformed infrared (FTIR) spectroscopy experiments and antioxidant tests were conducted in order to characterize the compound and to evaluate its reducing properties. Asc‐OL is a bioconjugate molecule, in fact it combines the main physico‐chemical features of the two parent molecules, i. e. the redox and acidic properties of Vitamin C and the fluid‐like state of oleic acid. The appropriate tests were carried out to confirm the excellent radical scavenging activities of Asc‐OL, that turned out to be a promising candidate for the stabilization, transport and protection against radical attack of valuable hydrophobic active ingredients used in food and pharmaceutical formulations.

show abstract

Section: Introductionmentioning

confidence: 71%

“…Packing parameter. In order to predict the shape of the aggegates formed by Asc‐OL in water we estimated the packing parameter p of the surfactant which is given by:

true p = \frac{v_{H}}{a_{P} l_{H}}

…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Ascorbyl‐6‐O‐oleate: A Bioconjugate Antioxidant Lipid

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…Here the outer normal curvature of a bilayer is positive. The inner curvature is negative (see Section 2.3 of Part 1) [1]. In cubic phases the inner lipid frustration depicted in Figure 2 of Part 1 is relieved for cubic phases by having lipids arranged so that curvature in one direction cancels that in the orthogonal direction everywhere.…”

Section: Cubic Biomembranesmentioning

confidence: 99%

“…

Part 1 revisited developments in lipid and surfactant self assembly over the past 40 years [1]. New concepts emerged.

…”

mentioning

confidence: 99%

Two sides of the coin. Part 2. Colloid and surface science meets real biointerfaces

Ninham

Larsson

Nostro

2017

Colloids and Surfaces B: Biointerfaces

Self Cite

View full text Add to dashboard Cite

Part 1 revisited developments in lipid and surfactant self assembly over the past 40 years [1]. New concepts emerged. Here we explore how these developments can be used to make sense of and bring order to a range of complex biological phenomena. Together with Part 1, this contribution is a fundamental revision of intuition at the boundaries of Colloid Science and Biological interfaces from a perspective of nearly 50 years. We offer new insights on a unified treatment of self assembly of lipids, surfactants and proteins in the light of developments presented in Part 1. These were in the enabling disciplines in molecular forces, hydration, oil and electrolyte specificity; and in the role of non Euclidean geometries-across the whole gammut of physical, colloid and surface chemistry, biophysics and membrane biology and medicine. It is where the early founders of the cell theory of biology and the physiologists expected advances to occur as D'Arcy Thompson predicted us 100 years ago.

show abstract

Influence of Hydrogen Bonding on Low Critical Micellar Concentration Value and Formation of Giant Vesicle of Triazole‐Contained Amphiphile

Zul

Tajuddin

Ahmad

et al. 2020

J Surfact & Detergents

View full text Add to dashboard Cite

An amphiphile molecule consisting of triazole moiety has been thoroughly investigated using different approaches in its aqueous condition. The studies have discovered the explicit function of its heteroaromatic ability in molecular self‐assembling. From the fluorescence evidence, the triazole‐based amphiphile has shown that the aggregation‐induced emission behavior is mainly due to the triazolyl. It suggests that the triazole is directly involved in the self‐assembling mechanism through an intermolecular interaction. This interaction can be verified by the shifting of proton frequency of the triazole, which is clearly shown by the constant frequency of the proton above the critical micellar concentration (CMC) value. The frequency suggests the establishing hydrogen bond that occurred between the hydrogen and the second nitrogen of the adjacent triazole. These results are consistent with the micellization of the molecule which was determined at a very low CMC value (0.1 mM). The absorbance and optical polarizing microscopy results also support the evidence of the growth of giant vesicles produced from the neutralization of the amphiphile. The formation of stable giant vesicles at neutral pH demonstrates the immediate strong hydrogen bonding connections within the triazoles layer in the bilayer. The discovery reveals that internal hydrogen bonds formed from a heteroaromatic with the appropriate molecular arrangement can promote self‐aggregation and enhance overall stability.

show abstract

Two sides of the coin. Part 1. Lipid and surfactant self-assembly revisited

Cited by 30 publications

References 107 publications

Ascorbyl‐6‐O‐oleate: A Bioconjugate Antioxidant Lipid

Ascorbyl‐6‐O‐oleate: A Bioconjugate Antioxidant Lipid

Two sides of the coin. Part 2. Colloid and surface science meets real biointerfaces

Influence of Hydrogen Bonding on Low Critical Micellar Concentration Value and Formation of Giant Vesicle of Triazole‐Contained Amphiphile

Contact Info

Product

Resources

About