Supramolecular Fuzzy Recognition Leads to Effective Differentiation of Similar Molecules

Supramolecular Fuzzy Recognition Leads to Effective Differentiation of Similar Molecules
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超分子模糊识别有效区分相似分子

DOI:
10.1002/pola.24667
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发表时间:
2011-06
期刊:
Journal of Polymer Science Part A: Polymer Chemistry
影响因子:
--
通讯作者:
Huang, Junlian
Huang, Junlian
中科院分区:
其他
文献类型:
--
作者:
Wan, Decheng;Pu, Hongting;Jin, Ming;Wang, Guowei;Huang, Junlian

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结构相似的分子的分离仍然是一个普遍的挑战,在这里,我们报告说,一个粗略定义的大分子纳米胶囊可以有效地分离各种结构相似的混合物。纳米胶囊是由超支化聚乙烯亚胺与2-十六烷氧基甲基环氧乙烷疏水衍生的核壳两亲性大分子(CAM)。研究发现,尽管体系中不存在或不存在特定的主客体相互作用,但通过进一步的化学核工程改造,可以从根本上提高CAM的客体选择性。结果表明,荧光素/四氯荧光素和玫瑰红/赤藓红B/曙红Y等两组结构相似的客体分子都能被CAM很好地识别.已知复杂(模糊)系统通常以复杂性和非线性为特征;因此CAM的核心工程可以放大竞争客体的差异并导致有效的客体差异化,这种机制被称为超分子模糊识别(SFR)。我们的研究结果表明,适当的组合各种基本的相互作用风格,SFR可以导致有效的识别广泛的混合物。此外,SFR主机可以在结构上粗略定义,因此容易获得。Wiley Periodicals,Inc.聚合物科学杂志A部分:聚合物化学49:2373 - 2381,2011年
The separation of structurally similar molecules remains a general challenge; here, we report that a roughly defined macromolecular nanocapsule can efficiently separate a variety of structurally similar mixtures. The nanocapsule is a coreshell amphiphilic macromolecule (CAM) hydrophobically derived from hyperbranched polyethylenimine with 2-hexadecyloxymethyloxir- ane. It is found that with further chemical core engineering of the CAM, its guest selectivity can be radically enhanced, although spe- cific hostguest interaction is absent or ignorable in the system. As a result, two groups of structurally similar guests such as fluores- cein/tetrachlorofluorescein, and rose bengal/erythrosine B/eosin Y, can be well recognized by the CAMs. It is known that a complex (fuzzy) system is generally characterized by complexity and nonli- nearity; thus core engineering of a CAM is possible to amplify the difference of the competitive guests and lead to effective guest dif- ferentiation, such a mechanism is called supramolecular fuzzy rec- ognition (SFR). Our results demonstrate that with appropriate combination of various elementary interaction styles, SFR can lead to effective recognition of a wide spectrum of mixtures. Moreover, a SFR host can be roughly defined in structure and thus readily available. V C 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 2373-2381, 2011
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