电化学方法研究石墨烯和磷酸三苯酯(TPP)与模拟生物膜间的相互作用
文献类型：期刊论文
| 作者 | 李斐 ; 丁家旺; 吴惠丰; 孟祥敬; 赵建民
|
| 刊名 | 科学通报
 |
| 出版日期 | 2017-12-30 |
| 卷号 | 62期号:36页码:4285-4293 |
| ISSN号 | 0023-074X |
| 关键词 | grapheme triphenyl phosphate (TPP) simulated phospholipid bilayer joint action 石墨烯 磷酸三苯酯 模拟生物膜 联合作用 |
| DOI | doi: 10.1360/N972017-00556 |
| 其他题名 | Interaction between graphene joint triphenyl phosphate (TPP) and the simulated phospholipid bilayer of electrochemical research |
| 产权排序 | (1) 中国科学院烟台海岸带研究所中国科学院环境过程与生态修复重点实验室 ; (2) 青岛海洋科学与技术国家实验室海洋渔业科学与食物产出过程功能实验室 ; (3) 中国科学院大学 |
| 文献子类 | Article |
| 英文摘要 | In the natural environment, organisms are frequently exposed to complex mixtures of pollutants. These pollutants usually enter organisms simultaneously, which leads to joint toxicological effects. With excellent adsorption properties, graphene nanomaterials can interact with other pollutants when they are released into the environment, which may affect the environmental behavior of these pollutants. The molecule structure of triphenyl phosphate (TPP) contains three benzene rings, which leads to that TPP interact with graphene easily. With the mass demand and production of graphene and TPP, it is of great significance to study the joint toxicological effects of graphene and TPP, which will provide theoretical basis and data support for ecological risk assessment. The cell membrane is an important barrier of organism to resist external environment. The environmental pollutants usually act on the cell membrane and then enter the cells to produce toxic effects. Studies have shown that graphene and its derivatives can damage cell membrane in the process of interaction. After entering the cell, graphene can bind with receptors and produce reactive oxygen species, which may have a more serious impact. The biological membrane consists of various phospholipids bilayer membrane structures. The interactions between graphene nanomaterials and biological membrane can be studied simply and effectively using the simple artificial biofilm model. The solid supported bilayer membrane is a kind of simulated biofilm which can be simply prepared, easily repeated and stably performed. At present, the electrochemical technology plays an important role in the characterization of the bilayer membrane supported on the metal surface, which has gained more and more applications in the study field of biofilm. The electrochemical impedance spectroscopy (EIS) can preliminary assess the membrane permeability, and can be used as sensitive detector to membrane structure change. Hence, the electrochemical methods can be used to study the interactions between small molecular contaminants and simulated biofilm. In this study, the "frozen-blotted out" method was adopted to construct covalent binding phospholipid bilayer on the gold electrode surface, thus forming simulation of biofilm, and the EIS was used to study the interactions between graphene/TPP and the simulated phospholipid bilayer. The results showed that graphene and TPP could reduce the impedance of the bilayer membrane modified gold electrode, which indicated that graphene and TPP could influence the permeability of cell membrane and damage the integrity of the simulated phospholipid bilayer. With the combined effects of graphene and TPP, the damage of simulated biomembrane was increased, suggesting a synergistic effect. The pollutants through the cell membrane may interact with large molecules such as DNA or protein in cells, these results can provide theoretical basis for evaluating the ecological risks of this kind of pollutants. |
| WOS关键词 | Chemistry |
| WOS研究方向 | Chemistry ; 化学 |
| 语种 | 中文 |
| CSCD记录号 | CSCD:6145764 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/24262]  |
| 专题 | 烟台海岸带研究所_近岸生态与环境实验室 烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.青岛海洋科学与技术国家实验室海洋渔业科学与食物产出过程功能实验室; 2.中国科学院烟台海岸带研究所中国科学院环境过程与生态修复重点实验室; 3.中国科学院大学 |
| 推荐引用方式 GB/T 7714 | 李斐,丁家旺,吴惠丰,等. 电化学方法研究石墨烯和磷酸三苯酯(TPP)与模拟生物膜间的相互作用[J]. 科学通报,2017,62(36):4285-4293. |
| APA | 李斐,丁家旺,吴惠丰,孟祥敬,&赵建民.(2017).电化学方法研究石墨烯和磷酸三苯酯(TPP)与模拟生物膜间的相互作用.科学通报,62(36),4285-4293. |
| MLA | 李斐,et al."电化学方法研究石墨烯和磷酸三苯酯(TPP)与模拟生物膜间的相互作用".科学通报 62.36(2017):4285-4293. |
入库方式： OAI收割
来源：烟台海岸带研究所
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