| 查看: 239 | 回复: 1 | |||
| 当前主题已经存档。 | |||
flyczw木虫 (职业作家)
|
[交流]
超分子分形化学
|
||
|
如果有其他的分行分子图片请跟贴 The three-dimensional branched architecture of a dendrimer consists of three topologically distinct regions: multivalent surface, branching repeat and encapsulated core. This paper discusses the use of dendritic architectures for supramolecular chemistry and, in particular, focuses on the unique ability of the branched shell to affect molecular recognition processes in these three regions. The multivalent nature of the fractal dendrimer surface allows the recognition of multiple guests with maximum efficiency and accessibility. Such multivalent recognition has been used both to enhance binding strengths for weak molecular recognition processes, and also to endow the receptor with much improved guest sensing properties. With the site of recognition in the branched repeat unit, dendritic hosts can exhibit not only high guest uptake, but also interesting cooperative binding effects.Meanwhile, recognition sites buried at the core experience the unique microenvironment generated by the dendritic branching. This microenvironment can generate new modes of binding and hence novel guest selectivities. As a consequence, such host molecules can mimic aspects of biological behaviour, particularly that of enzymes.Well-defined molecular recognition events with dendritic molecules also provide an entry into more highly organised supramolecular constructions and assemblies. This paper provides a survey of dendritic molecular recognition processes and, in particular,highlights the different ways in which the branched shell can actively control the binding event. Keywords: Dendrimer,Supramolecular chemistry,Molecular recognition,Self-assembly,Microenvironment. ============================================ 点击这里搜索我发布的其他帖子 [ Last edited by flyczw on 2006-6-2 at 21:46 ] |
回复此楼» 猜你喜欢
什么脱膜剂可以完全清洗干净啊？
已经有2人回复
-
暨南大学化学与材料学院赵宇亮院士正在招博士和博后，方向为生物材料和纳米医学
已经有1人回复
-
有机高分子材料论文润色/翻译怎么收费?
已经有179人回复
-
可生物降解聚酯正在重塑现代医疗器械
已经有0人回复
-
26届博士申请
已经有2人回复
-
PLLA 微球在生物医学领域的研究与应用
已经有1人回复
-
PLLA 微球的材料特性与制备工艺解析
已经有0人回复
-
医用聚己内酯（PCL）全解析：从两段式降解到组织工程应用
已经有0人回复
-
反相硅胶如何再生？
已经有1人回复
» 本主题相关商家推荐: (我也要在这里推广)
 |
2楼2006-05-24 00:45:22
