Aggregation of single-chained cationic surfactant molecules into vesicles induced by oligonucleotide

Microbial biosurfactants and hydrolytic enzymes mediates in situ development of stable supra-molecular assemblies in fatty acids released from triglycerides

“…In the present study, the concentration of salts and other metal ions are calculated as 10-15 ppm and the concentration of fatty acids is 7-9 ppm and concentration of glycerol is 3-5 ppm. However, in contradict to our observations; Guo et al [33] observed the presence of NaCl hinders the vesicle formation.…”

“…Similarly polymeric molecules, exhibit vesicles in aqueous/organic phase with the aid of various physical and environmental factors. The mediating and the environmental factors for the formation of vesicles are identified as: pH [5][6][7][8][9]; temperature [9][10][11][12]; chemical composition [7,10,[13][14][15][16][17][18][19][20][21][22]; surface-active compounds [11,12,14,19,20,[23][24][25][26][27][28][29][30][31][32][33][34][35][36] and finally, the agitation conditions [18].…”

Synthesis and aggregation behaviors of tail-branched surfactant Guerbet-cetyl trimethyl ammonium chloride

“…The unique branched hydrophobic chain endows the novel amphiphile excellent properties including high surface activity and significant efficiency of wetting paraffin surface. Furthermore, the aggregation pattern of this mono-alkyl amphiphile in singlecomponent aqueous solution into vesicles is a remarkable feature, since most of the systems that can self-assemble into vesicles are dispersions of double-chained molecules or multi-component systems composed of more than one amphiphile [24]. Antistatic tests and emulsifying experiments indicated that the Guerbet-cetyl trimethyl ammonium chloride holds great promise for future application.…”

“…Therefore, we were expecting that the branched single-chain hydrocarbon cationic surfactant synthesized in our work would achieve superior performance in reducing surface energy. Furthermore, the spontaneity of aggregating into vesicles in singlecomponent aqueous solution without assistance of other additives is an extraordinary feature [24] of the novel cationic surfactant because this self-assembly behavior may find research values in pharmaceutical applications [17,18,[25][26][27][28]. Other potential applications were explored by antistatic tests and emulsifying experiments.…”

The bone morphogenetic protein pathway is active in human colon adenomas and inactivated in colorectal cancer

“…Recently, we reported for the first time that oligo d(C) 25 can induce single‐chained cationic surfactant to aggregate into vesicles 48. We found that the lack of vesicles in the DNA/single‐chained surfactant system in the previous reports may be due to (1) a very low concentration of DNA (for example, 0.5 or 0.631–34, 44 and 6 μM36) was usually used, (2) the surfactant concentration is too low37 (much smaller than the cmc, in which case surfactant molecules should aggregate into micelle‐like structure along the DNA chain30–32, 36), or too high,39 (3) the precipitate rather than the solution was the research target40, 41 and (4) a large amount of NaCl exists in DNA/cationic surfactant systems 30.…”