Modulation of aggregation behavior, antimicrobial properties and catalytic activity of piperidinium surfactants by modifying their head group with a polar fragment
作者:Rushana A. Kushnazarova、Alla B. Mirgorodskaya、Denis M. Kuznetsov、Anna A. Tyryshkina、Alexandra D. Voloshina、Sumbela K. Gumerova、Oxana A. Lenina、Eugeny N. Nikitin、Lucia Ya. Zakharova
DOI:10.1016/j.molliq.2021.116318
日期:2021.8
groups, show a high antimicrobial effect at concentrations lower than critical micelle concentration for both bacteria and fungi, with the low hemolytic activity revealed. In addition, these surfactants were studied as micellar catalysts in alkaline hydrolysis of carboxylic acid esters. Micellar catalytic effect increases with an growth in the length of the alkyl tail, as well as with an increase in the
为了建立表面活性剂结构对其功能活性的影响,合成并表征了许多具有不同疏水尾长的烷基-N-羟乙基哌啶溴化物。使用张力测定法和荧光测定法测定这些表面活性剂的聚集参数。结果表明,哌啶鎓表面活性剂(包括被OH基官能化的那些)在对细菌和真菌的临界胶束浓度均较低的浓度下显示出较高的抗菌作用,并且溶血活性低。另外,还研究了这些表面活性剂作为羧酸酯碱水解中的胶束催化剂。胶束催化作用随烷基尾巴长度的增加而增加,