Bio-physicochemical analysis of ethylene oxide-linked diester-functionalized green cationic gemini surfactants

Akram, Mohd.; Anwar, Saba; Ansari, Farah; Bhat, Imtiyaz Ahmad; Kabir-ud-Din, †

doi:10.1039/c5ra28129f

Cited by 61 publications

(40 citation statements)

References 51 publications

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“…Modification of the structure (spacer or substituent) with easily hydrolysed groups can significantly affect biodegradability. The widely described easily biodegradable gemini surfactants are that with ester bonds [125,148,[174][175][176][177] (Table 2) [176,178].…”

Section: Biodegradabilitymentioning

confidence: 99%

Multifunctional Gemini Surfactants: Structure, Synthesis, Properties and Applications

Brycki¹,

Kowalczyk²,

Szulc³

et al. 2017

Application and Characterization of Surfactants

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Gemini cationic surfactants are compounds which are composed of two hydrophilic head groups and two hydrophobic tails linked by a spacer at the head groups or closed to them. The spacer can be either hydrophobic or hydrophilic. It can be rigid or flexible. The neutral charge of the molecule is retained by the presence of organic or inorganic counterions. Critical micelle concentrations (CMCs), surface tension (γ) and minimal inhibitory concentration (MIC) are dozen times lower than corresponding parameters of monomeric surfactants. The unique properties of gemini surfactants with a wide range of hydrophiliclipophilic balance (HLB) make them a very useful, innovative material in detergents, cosmetics, personal care products, additives for paints and coatings, biocides, material science, organic synthesis, pharmacy, textiles, enhanced oil recovery, nanotechnology, petroleum and many other branches of life. A large number of papers concerning gemini surfactants have been published so far. This review presents a synthetic look at current work devoted to structure, synthesis and applications of gemini surfactants.

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Section: Biodegradabilitymentioning

confidence: 99%

Multifunctional Gemini Surfactants: Structure, Synthesis, Properties and Applications

Brycki¹,

Kowalczyk²,

Szulc³

et al. 2017

Application and Characterization of Surfactants

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show abstract

“…52 Several different types of cationic surfactants containing ester linkage have been previously investigated for their ability to undergo biodegradation and studies have established these categories of surfactants to be partially or readily biodegradable. [53][54][55] Recent studies have also established ester based imidazolium surfactants to be biodegradable. 56,57 Fig.…”

Section: Biodegradability Of Surfactantsmentioning

confidence: 99%

Sustainable oleic and stearic acid based biodegradable surfactants

et al. 2017

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“…From the data, we can acknowledge that specific viscosity ( η sp ) values increase with raising the alkyl chain length of the C m ‐E2O2‐C m geminis. In case the specific viscosity is more, the aqueous foams drain gradually, and therefore the foams are highly stable (Akram et al, 2016). Thus, longer the alkyl chain length, higher is the foaming stability of the gemini surfactant.…”

Section: Resultsmentioning

confidence: 99%

An Insight View on Synthetic Protocol, Surface Activity, and Biological Aspects of Novel Biocompatible Quaternary Ammonium Cationic Gemini Surfactants

Akram

Lal

Osama

et al. 2020

J Surfact & Detergents

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In this study, we prepared a novel series of diester-functionalized cationic gemini surfactants (C m-E2O2-C m) containing ethylene oxide as a spacer with varying alkyl chain lengths and characterized by 1 H NMR, FT-IR, elemental analysis, and ESI-MS. The physicochemical properties of the geminis were explored by tensiometry, fluorescence, dye solubilization, and Krafft point. These geminis acquire superior surface activity than the conventional surfactants. Fluorescence spectroscopy analysis affirmed that the micropolarity and aggregation number of micelles diminished with increase in the alkyl chain length. These geminis represent a new group of amphiphiles of considerably high biodegradability, better cleavability, and low toxicity as assessed by BOD test, FT-IR analysis, and HC 50 analysis, respectively. They also showed significant level of antimicrobial activity toward some specified bacterial strains of Gram-positive and Gram-negative by using agar well diffusion method. Furthermore, the thermogravimetric analysis provided information regarding thermal stabilities of the newly synthesized gemini surfactants. Keywords C m-E2O2-C m gemini surfactants Á Physicochemical properties Á Antimicrobial activities Á TGA

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Bio-physicochemical analysis of ethylene oxide-linked diester-functionalized green cationic gemini surfactants

Abstract: A novel series of oxy-diester-functionalized gemini surfactants (Cm-E2O-Cm) were synthesized and a comprehensive analysis of their biophysicochemical properties was carried out.

Cited by 61 publications

References 51 publications

Multifunctional Gemini Surfactants: Structure, Synthesis, Properties and Applications

Multifunctional Gemini Surfactants: Structure, Synthesis, Properties and Applications

Sustainable oleic and stearic acid based biodegradable surfactants

An Insight View on Synthetic Protocol, Surface Activity, and Biological Aspects of Novel Biocompatible Quaternary Ammonium Cationic Gemini Surfactants

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