Interface Adsorption Taking the Most Advantageous Conformation for Electron Transfer Between Graphene and Cytochrome c
文献类型：期刊论文
| 作者 | Hu, BF; Ge, ZP; Li, XY |
| 刊名 | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
 |
| 出版日期 | 2015 |
| 卷号 | 15期号:7页码:4863-4869 |
| 关键词 | Protein-Graphene Interaction Adsorption Conformation Nanomaterials Molecular Dynamics Simulations |
| 通讯作者 | Xiaoyi Li |
| 英文摘要 | Most designed functions in biomedical nanotechnology are directly influenced by interactions of biological molecules with nano surfaces. Here, we explored and detected the most favorable adsorption conformation of cytochrome c on graphene by measuring the adsorption energy, the number of contact atoms, and the minimal distance between protein and surface. From the root mean square deviation of the protein backbone, the radius of gyration, and the proportion of secondary structure, it is revealed that cytochrome c does not deform significantly and the secondary structures are preserved to a large extent. The residues, Lys, Phe and Thr contribute significantly to the adsorption of cytochrome c to graphene. The long hydrophobic and flexible alkyl tail of Lys, the pi-pi stacking interaction between Phe and graphene, and the presence of abundant Thr constitute the driving force for the stable adsorption of cytochrome c on graphene. Cytochrome c is adsorbed to graphene with the group heme lying almost perpendicular to the graphene, and the distance between Fe atom and the graphene is 10.15 angstrom, which is shorter than that between electron donor and receptor in many other biosystems. All the results suggest that the most favorable adsorption takes the most advantageous conformation for electron transfer, which promotes significantly the electron transfer between graphene and cytochrome c. The findings might provide new and important information for designs of biomedical devices or products with graphene-based nanomaterials. |
| 学科主题 | Chemistry; Science & Technology - Other Topics; Materials Science; Physics |
| 类目[WOS] | Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| 收录类别 | SCI ; EI |
| WOS记录号 | WOS:000348489200013 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228070]  |
| 专题 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Hu, BF,Ge, ZP,Li, XY. Interface Adsorption Taking the Most Advantageous Conformation for Electron Transfer Between Graphene and Cytochrome c[J]. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,2015,15(7):4863-4869. |
| APA | Hu, BF,Ge, ZP,&Li, XY.(2015).Interface Adsorption Taking the Most Advantageous Conformation for Electron Transfer Between Graphene and Cytochrome c.JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,15(7),4863-4869. |
| MLA | Hu, BF,et al."Interface Adsorption Taking the Most Advantageous Conformation for Electron Transfer Between Graphene and Cytochrome c".JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 15.7(2015):4863-4869. |
入库方式： OAI收割
来源：高能物理研究所
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