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

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An Insight View on Synthetic Protocol, Surface Activity, and Biological Aspects of Novel Biocompatible Quaternary Ammonium Cationic Gemini Surfactants
Journal of Surfactants and Detergents ( IF 1.6 ) Pub Date : 2020-08-04 , DOI: 10.1002/jsde.12450
Mohd Akram ₁ , Hira Lal ₁ , Mohammad Osama ₁ , Farah Ansari ₁ , Sana Anwar ₁ , Kabir‐ud‐Din _{1,

2} , Ajaz Ahmad ₃ , Samreen ₄ , Naved Azum ₅ , Hadi M. Marwani ₅ , Abdullah M. Asiri _{5,

6}

Affiliation

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 ¹H 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 HC₅₀ 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.

中文翻译：

新型生物相容性季铵盐阳离子双子表面活性剂的合成方案，表面活性和生物学方面的见解

在这项研究中，我们制备了一系列新的二酯官能化阳离子双子表面活性剂（C _m -E2O2-C _m），其中包含环氧乙烷作为间隔基，烷基链长度不同，其特征为¹H NMR，FT-IR，元素分析和ESI-MS。通过张力测定，荧光，染料增溶和Krafft点探索双子星的理化性质。与传统的表面活性剂相比，这些双子油具有更高的表面活性。荧光光谱分析证实，胶束的微极性和聚集数随烷基链长度的增加而减小。这些双生子代表了一组新的两亲物，通过BOD测试，FT-IR分析和HC ₅₀评估，它们具有相当高的生物降解性，更好的可裂解性和低毒性。分析。通过琼脂井扩散法，他们还对某些特定的革兰氏阳性和阴性细菌菌株显示出显着的抗菌活性。此外，热重分析提供了有关新合成的双子表面活性剂的热稳定性的信息。

更新日期：2020-08-04

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