Anionic amphiphilic dendrimers as antibacterial agents.
Anionic amphiphilic dendrimers as antibacterial agents.
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DOI:
10.1021/ja806912a
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发表时间:
2008-11-05
影响因子:
15
通讯作者:
Grinstaff, Mark W.
中科院分区:
文献类型:
--
作者:
Meyers, Steven R.;Juhn, Frank S.;Griset, Aaron P.;Luman, Nathanael R.;Grinstaff, Mark W.
An anionic amphiphilic dendrimer is reported that possesses increased cytotoxicological potency against prokaryotic cells compared to eukaryotic cells. The half maximal effective concentration (EC50) for the dendrimer against Bacillus subtilis, a Gram-positive bacterial strain, was measured to be 4.1×10−5 M, while that against human umbilical vein endothelial cells (HUVEC) was more than 36x greater at a value of 1.5×10−3 M. EC50 ratios for two commercial amphiphiles, sodium dodecyl sulfate (SDS) and Triton X-100, in addition to a similar synthesized dendritic structure were at most only 3.8x greater. Furthermore, the observed EC50 values appear to be correlated to the critical aggregation constant (CAC) in solution suggesting a mechanism of action for these anionic amphiphilic dendrimers related to their supramolecular structures.
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