Synthesis, Surface Properties and Antimicrobial Activity of Some Germanium Nonionic Surfactants
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- Zaki Mohamed F.
- Egyptian Petroleum Research Institute
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- Tawfik Salah M.
- Egyptian Petroleum Research Institute
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抄録
Esterification reaction between different fatty acid namely; lauric, stearic, oleic and linoleic acids and polyethylene glycol-400 were performed. The produced polyethylene glycol ester were reacted with p-amine benzoic acid followed by condensation reaction with germanium dioxide in presence of sodium carbonate to form desired germinate surfactants. The chemical structures of the synthesized surfactants were determined using different spectra tools. The surface parameter including: the critical micelle concentration (CMC), effectiveness (πcmc), efficiency (Pc20), maximum surface excess (Γmax) and minimum surface area (Amin), were calculated from the surface tension measurements. The synthesized surfactants showed higher surface activity. The thermodynamic parameters showed that adsorption and micellization processes are spontaneous. It is clear that the synthesized nonionic surfactants showed their tendency towards adsorption at the interfaces and also micellization in the bulk of their solutions. The synthesized surfactants were tested against different strain of bacteria using inhibition zone diameters. The synthesized surfactants showed good antimicrobial activities against the tested microorganisms including Gram positive, Gram negative as well as fungi. The promising inhibition efficiency of these compounds against the sulfate reducing bacteria facilitates them to be applicable as new categories of sulfate reducing bacteria biocides.
収録刊行物
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- Journal of Oleo Science
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Journal of Oleo Science 63 (9), 921-931, 2014
公益社団法人 日本油化学会
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詳細情報 詳細情報について
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- CRID
- 1390001204093090560
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- NII論文ID
- 130004677769
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- NII書誌ID
- AA11503337
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- COI
- 1:STN:280:DC%2BC2M%2FisFKrtA%3D%3D
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- ISSN
- 13473352
- 13458957
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- NDL書誌ID
- 025704216
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- PubMed
- 25132086
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可