2015
DOI: 10.1016/j.colsurfb.2015.01.044
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Self-assembling systems based on quaternized derivatives of 1,4-diazabicyclo[2.2.2]octane in nutrient broth as antimicrobial agents and carriers for hydrophobic drugs

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Cited by 40 publications
(17 citation statements)
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“…Despite the key role of hydrophobicity of surfactants in their micellization and functional activity, this aspect is poorly studied for alkylated DABCO excepting isolated publications. Our work focused on the aggregation activity of mono-( 3 ) and di-( 4 ) and tetracationic ( 5 ) derivatives of DABCO (Figure 2) in water, chloroform, and biological fluids [138,141,142], their catalytic and biological activity [142,143], adsorption on the air/water interface [141,144] in both single solution and in the presence of calixarenes [145,146,147], organophosphorus substrates [148,149,150], and polymers [151]. As can be seen from the structural formulas (Figure 2), these surfactant series allow the comparison of the behavior of gemini surfactants bearing two charged fragments and two long-chain alkyl groups with dicationic surfactants bearing one long-chain alkyl fragment.…”
Section: Self-assembled Quaternized Derivatives Of 14-diazabicyclmentioning
confidence: 99%
“…Despite the key role of hydrophobicity of surfactants in their micellization and functional activity, this aspect is poorly studied for alkylated DABCO excepting isolated publications. Our work focused on the aggregation activity of mono-( 3 ) and di-( 4 ) and tetracationic ( 5 ) derivatives of DABCO (Figure 2) in water, chloroform, and biological fluids [138,141,142], their catalytic and biological activity [142,143], adsorption on the air/water interface [141,144] in both single solution and in the presence of calixarenes [145,146,147], organophosphorus substrates [148,149,150], and polymers [151]. As can be seen from the structural formulas (Figure 2), these surfactant series allow the comparison of the behavior of gemini surfactants bearing two charged fragments and two long-chain alkyl groups with dicationic surfactants bearing one long-chain alkyl fragment.…”
Section: Self-assembled Quaternized Derivatives Of 14-diazabicyclmentioning
confidence: 99%
“…Surface tension measurements were performed using the du Nouy ring detachment method (Kruss K6 Tensiometer, Hamburg, Germany). The experimental details are described elsewhere [ 84 ]. Briefly, the planar and spherical ring was placed parallel to the air–solvent interface.…”
Section: Methodsmentioning
confidence: 99%
“…При введении гидротропных добавок ККМ ДАБКО-16 резко снижается (с 1 мМ до 0,08 мМ в присутствии 0,5 мМ салицилата натрия), а гидродинамический диаметр агрегатов возрастает (с 2,3 нм до 25 нм), что, вероятно, связано с образованием цилиндрических мицелл, а водные растворы ДАБКО-16салицилат натрия проявляют свойства упругого геля [36]. Введение эквимолярного количества Nметил-D-глюкамина в раствор с монокватеризо-ванным производным ДАБКО способствует увеличению солюбилизирующей способности по отношению к кверцетину (в 4 раза), а также позволяет в 2 раза снизить концентрацию ПАВ в антимикробной композиции, тем самым снижая ее токсичность [37]. Комплексом физико-химических методов было установлено, что 1-этил-4-алкил-1,4диазониабицикло[2.2.2]октан дибромиды (Di-ДАБКО-n) (рис.…”
Section: супрамолекулярные системы на основе катионных пав: влияние пunclassified