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Biological Stimuli-responsive polymer Systems:Design,Construction and Controlled Self-assembly

Chinese Journal of polymer Science 2018年第3期36卷 347-365页

作者： Miao-Miao Xu Ren-Jie Liu Qiang Yan Key Laboratory of Molecular Engineering of polymers Department of Macromolecular ScienceFudan UniversityShanghai 200433China

Biological stimuli-responsive polymers have increasingly attracted attention in recent years because it can satisfy many requirements of applications related with human body while traditional systems do not *** to the importance of this burgeoning field,great efforts have been devoted and,up to now,polymer chemists have made a remarkable success in this prospective research *** this review,we systematically generalize the present state of biological stimuli-responsive polymer *** highlight several representative examples to specify the current problems and look ahead a clear sense of direction in this area.

关键词： Biological stimuli responsive polymer Controlled self-assembly Biomedicine

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responsive polymers with Contraction-arisen Helicity and Biomimetic Membrane-spanning Transport Functions

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Chemical Research in Chinese Universities 2022年第3期38卷 803-808页

作者： MIN Jing ZHANG Chenyang QI Shuaiwei WANG Liyan DONG Zeyuan State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun130012P.R.China

responsive polymers have attracted increasing attention for prospective design of smart *** development of multifunctional responsive materials is very dependent on polymeric structures that can be manipulated with the change of microenvironment at the molecular ***,we report a type of responsive coordination polymers(RCPs)consisting of dual phenanthroline-oxadiazole(DPO)units and metal Zn^(2+)ions,which can contract from linear structure into topologically helical structure driven by hydrophobic effect while changing the microenvironment from nonpolar solvent to aqueous *** symmetry breaking of RCPs was confirmed by circular dichroism(CD)spectra and atomic force microscope(AFM)images,clearly demonstrating the intramolecularly contraction-arisen ***,RCPs can intelligently adapt different microenvironments by changing their conformations,as evidenced by a demonstration of biomimetic lipid bilayer-based vesicle ***,RCPs show significant concentration-dependent transmembrane transport functions,implying that RCPs are able to span cellular membranes to form channels inside the hydrophobic lipid *** the same time,the electrophysiological conductance experiments further underpin the biomimetic transport functions and channel-based conduction mechanism of *** study demonstrates an important paradigm of responsive polymers performing microenvironment-induced conformational change and thereof unique functions,and thus provides valuable insights on the development of functional responsive materials.

关键词： responsive polymer Molecular contraction Symmetry breaking Helicity Transmembrane transport

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