Effect of Alkyl Chain Length and Degree of Substitution on the Complexation of Sulfoalkyl Ether β-Cyclodextrins with Steroids

1997 ◽  
Vol 86 (2) ◽  
pp. 220-224 ◽  
Author(s):  
Vahid Zia ◽  
Roger A. Rajewski ◽  
Esteban R. Bornancini ◽  
Ernestina A. Luna ◽  
Valentino J. Stella
Keyword(s):  
Chain Length ◽  
Alkyl Chain ◽  
Alkyl Chain Length ◽  
Degree Of Substitution

scholarly journals Preparation of glycoside polymer micelles with antioxidant polyphenolic cores using alkylated poly(arbutin)s

RSC Advances ◽  
2019 ◽  
Vol 9 (14) ◽  
pp. 7777-7785 ◽  
Author(s):  
Ayaka Seto ◽  
Rika Kajiwara ◽  
Jaeeun Song ◽  
Eeseul Shin ◽  
Byeong-Su Kim ◽  
...  
Keyword(s):  
Chain Length ◽  
Alkyl Chain ◽  
Micelle Formation ◽  
Alkyl Chain Length ◽  
Degree Of Substitution ◽  
Polymer Micelles ◽  
Long Chain

This paper describes the synthesis of long-chain-alkylated poly(arbutin)s (poly(Arb)-Rx, where R = alkyl-chain length and x = degree of substitution (DS)) and their aqueous micelle formation.

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.

scholarly journals Physico-chemical and gel properties of heat-induced pasteurized liquid egg white gel: effect of alkyl chain length of alcohol

2021 ◽  
Vol 24 (1) ◽  
pp. 1229-1243
Author(s):  
Danai Charoensuk ◽  
Robert G. Brannan ◽  
Wilailuk Chaiyasit ◽  
Wanlop Chanasattru
Keyword(s):  
Chain Length ◽  
Alkyl Chain ◽  
Egg White ◽  
Alkyl Chain Length ◽  
Gel Properties ◽  
Gel Effect ◽  
Physico Chemical

Facile synthesis of alkylated phenothiazine-isatin polymers by super acid catalyst: Effect of alkyl chain length on the properties.

2021 ◽  
pp. 130714
Author(s):  
Bharatraj Kasi ◽  
Neelakandan Kaliaperumal ◽  
Vajjiravel Murugesan
Keyword(s):  
Chain Length ◽  
Alkyl Chain ◽  
Acid Catalyst ◽  
Alkyl Chain Length ◽  
Facile Synthesis ◽  
Super Acid ◽  
Catalyst Effect

scholarly journals [4]Cyclo-N-alkyl-2,7-carbazoles: Influence of the Alkyl Chain Length on the Structural, Electronic, and Charge Transport Properties

2021 ◽  
Author(s):  
Fabien Lucas ◽  
Nemo McIntosh ◽  
Emmanuel Jacques ◽  
Christophe Lebreton ◽  
Benoît Heinrich ◽  
...  
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Chain Length ◽  
Alkyl Chain ◽  
Alkyl Chain Length
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