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| 1 | Effect of the microbial lipopeptide on tumor cell lines: apoptosis induced by disturbing the fatty acid composition of cell membrane显示文摘Microbial lipopeptides play an important role in apoptosis induction of tumor cells.However,there is little knowledge about the relationship between apoptosis induction and membrane fatty acids.The present study focused on the effects of lipopeptides produced by Bacillus subtilis HSO121 on Bcap-37 cell lines.3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl(MTT)colorimetric assay and surface tension measurements,showed that the critical micelle concentration(CMC)was a critical level for the inhibitory activity of lipopeptides on the growth of Bcap-37 cells.Under the CMC,the order of least to greatest cytotoxicity effect on cancer cell lines by lipopeptides is C13-lipopeptide | Xiangyang Liu Xinyi Tao Aihua Zou Shizhong Yang Lixin Zhang Bozhong Mu | 2010 | Protein & Cell2010,1,6: | 3 |
| 2 | Isolation and characterization of a C12-lipopeptide produced by Bacillus subtilis HSO121显示文摘 | Liu Xiangyang Yang Shizhong Mu Bozhong | 2008 | Journal of Peptide Science2008,14,: | 1 |
| 3 | Toluidine blue : Aggregation properties and distribution behavior in surfactin micene solution 显示文摘 | Liu Jing Zou Aihua Mu Bozhong | 2010 | Colloids Surf B2010,75,2: | 1 |
| 4 | Nanoscale Interfacial Activity of the Natural Lipopeptide, [Asp1, Glu5] Surfactin-C16, and DMPC in Mixed Monolayer显示文摘dimyristoylphosphatidylcholine (DMPC ) 和最新孤立的 surfactin 类似物,[Asp1, Glu5 ] 在混合单层的 surfactin-C16 被学习。压力分子的区域等温线与原子力量显微镜学(AFM ) 相结合的表面被用来探查 DMPC 和 surfactin-C16 的界面的行为。结果证明在 DMPC 和 surfactin-C16 之间的可混和性依赖于臼齿的部分(x ) 和表面迫使的 surfactin。二个部件在纯水(pH=6 ) 上部分是能溶合的,显示那在那里存在什么时候 x 在二个部件之间的 0.5 个相互的相互作用。AFM 图象在 surfactin-C16 单层显示出类似的模式, DMPC/surfactin-C16 (XS=0.5 ) 混合了单层。把那 DMPC 基于发现它被相信将进在混合单层的 surfactin-C16 表面簇联合。而且,过量混合的免费精力(Gmex ) 被计算在混合单层在二个部件的可混和性上调查 subphase pH 的效果。Gmex 在碱的 subphase (pH=10 ) 上是否定的,这被发现什么时候 x 平等者到 0.75,显示在 surfactin 和 DMPC 之间的分子的相互作用以条件是吸引人的。这里介绍的结果建议在 surfactin-C16 和 DMPC 之间的恐水病的相互作用在相互的相互作用,和界面的活动起一个重要作用由 surfactin-C16 的极的组的电离状态被影响。 | Yang Ying Zou Aihua song Changsheng Mu Bozhong | 2012 | Chinese Journal of Chemistry2012,30,12: | 0 |
| 5 | Critical adsorbing properties in slits predicted by traditional polymer adsorption theories on Ising lattice显示文摘The critical adsorbing properties in slits and three-dimension (3D) phase transitions can be predicted by either Freed theory or Flory-Huggins theory. The mean field approximation in Flory-Huggins theory may cause apparent system errors, from which one can observe two-dimension (2D) phase transitions although it is not true. Monte Carlo simulation has demonstrated that Freed theory is more suit-able for predicting adsorbing properties of fluids in slits than Flory-Huggins theory. It was found that from Freed theory prediction multilevel adsorption occurs in slits and the spreading pressure curves exhibit binodal points. | LIU Meitang MU Bozhong | 2005 | Chinese Science Bulletin2005,50,16: | 0 |
| 6 | Synthesis and Interfacial Properties of Bio-Based Zwitterionic Surfactants Derived from Different Fatty Acids in Non-Edible Vegetable Oils显示文摘Waste cooking oils and non-edible vegetable oils are abundant and renewable resources for bio-based materials which have showed great potential applications in many industries.In this study,five fatty acids commonly found in non-edible vegetable oils,including palmitic acid,stearic acid,linoleic acid,linolenic acid,ricinoleic acid,and their mixtures,were used to produce bio-based zwitterionic surfactants through a facile and high-yield chemical modification.These surfactants demonstrated excellent surface/interfacial properties with the minimum surface tensions ranging from 28.4 mN/m to 32.8 mN/m in aqueous solutions.The interfacial tensions between crude oil and surfactant solutions were remarkably reduced to lower values ranging from 0.0028 mN/m to 0.1983 mN/m without the aid of extra alkali,which particularly implied a great potential application in enhanced oil recovery.Meanwhile,these bio-based surfactants also showed good wetting properties(contact angles of~51°comparing with that of double distilled water,92.04°)and appropriate predicted biodegradability(degradation order of“weeks”for bio-based surfactants synthesized from saturated fatty acids,and“months”for those synthesized from unsaturated fatty acids).Bio-based surfactants synthesized from unsaturated fatty acids showed better interfacial properties in reducing interfacial tension between crude oil and formation water.The bio-based surfactants presented in this study are alternative substitutes for traditional petroleum-based surfactants in various surfactant application fields. | Hongze Gang Qiqi Zhang Wei Wang Bangxin Cai Jinfeng Liu Shizhong Yang Bozhong Mu | 2020 | Journal of Renewable Materials2020,8,4: | 0 |