期刊
MACROMOLECULAR BIOSCIENCE
卷 11, 期 8, 页码 1128-1137出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mabi.201100126
关键词
antimicrobial activity; biocompatibility; oligo(2-oxazoline)s; supercritical carbon dioxide; water-soluble polymers
资金
- FCT-Lisbon, Portugal
- Fundacao para a Ciencia e Tecnologia (FCT) [PTDC/QUI/73939/2006, MIT-Pt/BS-CTRM/0051/2008, SFRH/BD/74730/2010, SFRH/BPD/38014/2007]
- FEDER
- FSE
- MIT-Portugal
- Fundação para a Ciência e a Tecnologia [PTDC/QUI/73939/2006, SFRH/BD/74730/2010, SFRH/BPD/38014/2007] Funding Source: FCT
A method using supercritical CO2 to obtain biocompatible 2-oxazoline-based oligomers quaternized with different amines is described. The synthesized oligo(2-oxazoline)s display partial carbamic-acid insertion at one end. The syntheses of quaternary oligo(2-bisoxazoline)s and linear oligoethylenimine hydrochlorides are reported. Oligo(2-methyl-2-oxazoline) and oligo(2-bisoxazoline) quaternized with N,N-dimethyldodecylamine are the most efficient biocidal agents showing fast killing rates against Staphylococcus aureus and Escherichia coli. Linear oligoethylenimine hydrochloride shows the lowest MIC values but higher killing times against both bacteria. Based on the antimicrobial activity studies, a cooperative action of carbamic acid with the ammonium end group is proposed.
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