Formation of polyhedral vesicle gels from catanionic mixtures of hydrogenated and perfluorinated surfactants: effect of fluoro-carbon alkyl chain lengths

Soft Matter ◽  
2018 ◽  
Vol 14 (40) ◽  
pp. 8231-8238 ◽  
Author(s):  
Juan Zhang ◽  
Benxiang Pi ◽  
Xiaomeng Wang ◽  
Zihao Yang ◽  
Qichao Lv ◽  
...  
Keyword(s):  
Phase Transition ◽  
Alkyl Chain ◽  
Perfluorinated Surfactants ◽  
Chain Lengths ◽  
Catanionic Mixtures ◽  
Spherical Vesicles

Phase transition from spherical vesicles to faceted vesicles and gels.

scholarly journals Facile construction of a family of supramolecular gels with good levofloxacin hydrochloride loading capacity

RSC Advances ◽  
2021 ◽  
Vol 11 (21) ◽  
pp. 12641-12648
Author(s):  
Renyuan Chen ◽  
Caidie Xu ◽  
Yihao Lei ◽  
Hongxin Liu ◽  
Yabin Zhu ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Alkyl Chain ◽  
Low Molecular Weight ◽  
Loading Capacity ◽  
Supramolecular Gels ◽  
Low Molecular Weight Gelators ◽  
Chain Lengths

A family of low molecular weight gelators with different alkyl chain lengths was constructed, having excellent gelation ability and antibiotic loading capacity. A low molecular weight hydrogelator was obtained by adjusting the length of alkyl chain.

scholarly journals Dielectric Properties of Chiral Ferroelectric Liquid Crystalline Compounds with Three Aromatic Rings Connected by Ester Groups

Crystals ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 473 ◽  
Author(s):  
Malay Kumar Das ◽  
Barnali Barman ◽  
Banani Das ◽  
Věra Hamplová ◽  
Alexey Bubnov
Keyword(s):  
Molecular Structure ◽  
Phase Transition ◽  
Liquid Crystalline ◽  
Alkyl Chain ◽  
Dielectric Strength ◽  
Relaxation Frequency ◽  
Goldstone Mode ◽  
Aromatic Rings ◽  
Structural Variations ◽  
Polar Order

The tilted ferroelectric SmC* phase of three structurally different series having three aromatic rings in the core structure connected by ester groups with different end alkyl chain lengths, all of which are derived from lactic acid, have been observed by broadband dielectric spectroscopy. Introduction of structural variations within the liquid crystalline compounds has led to the formation of chiral nematic N*, or the paraelectric orthogonal SmA* phase at higher temperatures. The dielectric spectra strongly depend both on the temperature as well as the specific molecular structure of the self-assembling compounds possessing the ferroelectric polar order. The results reveal a strong Goldstone mode in the ferroelectric SmC* phase with ~kHz relaxation frequency. In the SmC* phase, the real and imaginary parts of the complex permittivity increase up to certain temperature near the SmC*-N*/SmA* transition and then decrease with increasing temperature, perhaps due to the disruption of the molecular domains at the onset of the SmA*/N* phase transition. The dielectric strength attains a maximum value in the SmC* phase and then decreases near the SmA*/N* phase transition. The dielectric strength is also influenced by the lengths of the alkyl chain and the nature of the connecting unit of the constituent molecules. The relaxation time and the relaxation frequency are found to vary with the molecular structure of the studied ferroelectric compounds.

scholarly journals Electrochemical investigations of DNA-Intercalation potency of bisnitrophenoxy compounds with different alkyl chain lengths

Heliyon ◽  
2020 ◽  
Vol 6 (6) ◽  
pp. e04124
Author(s):  
Maria Shakeel ◽  
Tehmeena Maryum Butt ◽  
Maria Zubair ◽  
Humaira Masood Siddiqi ◽  
Naveed Kauser Janjua ◽  
...  
Keyword(s):  
Alkyl Chain ◽  
Dna Intercalation ◽  
Chain Lengths

Conductivity and Electrochemistry of Ferrocenyl-Imidazolium Redox Ionic Liquids with Different Alkyl Chain Lengths

2014 ◽  
Vol 161 (4) ◽  
pp. H161-H165 ◽  
Author(s):  
Bruno Gélinas ◽  
John C. Forgie ◽  
Dominic Rochefort
Keyword(s):  
Ionic Liquids ◽  
Alkyl Chain ◽  
Chain Lengths

Vesicle-Forming Properties of New Phospholipid Analogues Derived fromN-Phosphonoacetyl-l-aspartate (PALA): Particle Features and Morphology in Relation with Alkyl Chain Lengths†

Langmuir ◽  
2001 ◽  
Vol 17 (13) ◽  
pp. 3893-3897 ◽  
Author(s):  
Patrick Oliger ◽  
Marc Schmutz ◽  
Marc Hebrant ◽  
Claude Grison ◽  
Philippe Coutrot ◽  
...  
Keyword(s):  
Alkyl Chain ◽  
Chain Lengths

scholarly journals Metabolism of α-PHP and α-PHPP in humans and the effects of alkyl chain lengths on the metabolism of α-pyrrolidinophenone-type designer drugs

2018 ◽  
Vol 36 (2) ◽  
pp. 486-497 ◽  
Author(s):  
Shuntaro Matsuta ◽  
Noriaki Shima ◽  
Hidenao Kakehashi ◽  
Hiroe Kamata ◽  
Shihoko Nakano ◽  
...  
Keyword(s):  
Alkyl Chain ◽  
Designer Drugs ◽  
Chain Lengths

Growth of Double-Chained Cationic Surfactant Films on Mica

2006 ◽  
Vol 59 (6) ◽  
pp. 381 ◽  
Author(s):  
Annabelle Blom ◽  
Gregory G. Warr ◽  
Erica J. Wanless
Keyword(s):  
Atomic Force Microscopy ◽  
Alkyl Chain ◽  
Effect Of Temperature ◽  
Equilibration Time ◽  
Force Microscopy ◽  
Atomic Force ◽  
The Difference ◽  
Chain Lengths ◽  
Gel Transition

The evolution of adsorbed dialkyl chained quaternary ammonium surfactant films with different alkyl chain lengths has been observed in situ using atomic force microscopy (AFM). Both di-C12DAB and di-C14DAB form a cohesive bilayer immediately, which is observed to strengthen with equilibration time. The slow equilibrium of di-C16DAB allows examination of the film at less than saturated coverage and reveals growth of the bilayer through the nucleation and coalescence of patches. The difference in height between higher and lower regions is insufficient for bilayer and monolayer regions and the postulated structure is that of regions of bilayer with different packing densities. The effect of temperature on film morphologies near the gel transition is also examined.

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