Screening for Potential Antimicrobial Activities of Some Cationic Uracil Biocides Against Wide-Spreading Bacterial Strains
作者:Nabel A. Negm、Ismail A. Aiad、Salah M. Tawfik
DOI:10.1007/s11743-010-1229-0
日期:2010.10
Schiff bases and their cationic derivatives were evaluated as novel biocides against different bacteria and fungi strains. The results showed that the biocidal activity of the synthesized Schiff bases was considerably increased by quaternization. The influence of the cationic surfactants as biocides was increased by increasing the hydrophobic chain length and the presence of the methoxy groups. The biocidal
合成并使用元素分析,FTIR,1 H-NMR和13分析了八种含有Schiff碱物种的新型基于尿嘧啶的阳离子表面活性剂核磁共振波谱 基于界面张力测量值和水/辛醇系统中的分配系数值,确定了合成的席夫碱及其阳离子衍生物的表面活性。合成的席夫碱及其阳离子衍生物被评估为针对不同细菌和真菌菌株的新型杀菌剂。结果表明,通过季铵化作用,合成的席夫碱的杀生物活性大大提高。阳离子表面活性剂作为杀菌剂的影响通过增加疏水链的长度和甲氧基的存在而增加。通过增加水/辛醇系统中的分配系数,还提高了杀菌活性。讨论了不同化合物的结构和表面活性/杀菌活性。