基于主客体相互作用的宏观超分子组装及性能研究
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- 英文论文题名：Mesoscopic Self-Assembly Based on Host-Guest Molecular Recognition and the Research of Property
- 论文作者：鞠冠男 ; 李东霖 ; 石峰
- 英文论文作者：Guannan Ju ; Donglin Li ; Feng Shi ; State key laboratory of chemical resource engineering ; Beijing University of Chemical Technology
- 年：2016
- 作者机构：北京化工大学化工资源有效利用国家重点实验室;
- 论文关键词：柔性间隔层 ; 主客体 ; 稳定性
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十四分会：超分子组装与软物质材料
- 语种：中文
- 分类号：O641.3
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十四分会 ; 超分子组装与软物质材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：184k
- 原文格式：D
- 会议级别：全国
摘要
介观尺度构筑基元的超分子组装在超分子器件、生物组织工程支架等领域有着巨大的应用价值。目前,将超分子组装从分子尺度推进到介观尺寸仍然是一个挑战。针对此,我们通过LbL技术和化学交联方法在PDMS构筑基元上设计了柔性间隔层~([1]),并通过偶氮苯-环糊精超分子识别作用实现了PDMS构筑基元材料的介观超分子组装,证明了聚乙烯亚胺-聚丙烯酸柔性间隔层的存在是实现介观超分子组装的关键因素。进一步,我们进行了不同pH值条件下的该柔性间隔层的稳定性研究以及原位定量测量构筑基元间作用力。研究表明,在一定的pH值范围内,该柔性间隔层体系能够稳定的存在,且实现构筑基元之间的宏观超分子组装~([2])。加入竞争性Ad分子后组装体实现了解组装。这一方法为制备高精度多维有序结构提供了一种新的思路。
Supramolecular assembly possesses great potential in the field of supramulecular devices and tissue engineering scaffolds. For example, surface roughness and surface effects may make the distance beyond the supramolecular interactive distance. Challenges remain from current molecular level to macroscopic dimension. Herein, we design a flexible spacing coating~([1]) via Lb L technique following chemical crosslinking and perform supramolecular assembly of PDMS cubes based on cyclodextrin/azobenzene recognition. Moreover, we study the stability of the coating under different pH values and measured the force values between the building blocks in situ, showing that the coating can maintain stable within the provided pH range. By introducing the competitive Ad molecules, the assembled CD/Azo cubes can realize disassembly~([2]). It provides a new idea for the preparation of precise ordered multi-dimension structures.
Supramolecular assembly possesses great potential in the field of supramulecular devices and tissue engineering scaffolds. For example, surface roughness and surface effects may make the distance beyond the supramolecular interactive distance. Challenges remain from current molecular level to macroscopic dimension. Herein, we design a flexible spacing coating~([1]) via Lb L technique following chemical crosslinking and perform supramolecular assembly of PDMS cubes based on cyclodextrin/azobenzene recognition. Moreover, we study the stability of the coating under different pH values and measured the force values between the building blocks in situ, showing that the coating can maintain stable within the provided pH range. By introducing the competitive Ad molecules, the assembled CD/Azo cubes can realize disassembly~([2]). It provides a new idea for the preparation of precise ordered multi-dimension structures.
引文
[1]Cheng M.J.,Shi,F.,Li,J.S.,Lin,Z.F.,Jiang,C.,Xiao,M.,Zhang,L.Q.,Yang,W.T.,and Nishi,T.Adv.Mater.2014,26:3009.
[2]Cheng M.J.,Ju,G.N.,Zhang,Y.W.,Song,M.M.,Zhang,Y.J.,and Shi,F.Small,2014,10(19):3907.
[2]Cheng M.J.,Ju,G.N.,Zhang,Y.W.,Song,M.M.,Zhang,Y.J.,and Shi,F.Small,2014,10(19):3907.