Fluorescent Supramolecular Polymersomes Based on Pillararene/Paraquat Molecular Recognition for pH-c

来源 :高分子科学(英文版) | 被引量 : 0次 | 上传用户:ankang1991
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Researchers have put significant efforts on developing versatile fluorescent polymeric systems due to their promising biological/biomedical labelling,tracking,monitoring,imaging,and diagnostic applications.However,complicated organic/polymeric synthesis or post-modification of these functionalized platforms is still a big obstacle for their further application and thereby provides clear motivation for exploring altative strategies for the design and fabrication of easily available fluorescent systems.The marriage of supramolecular polymers and fluorescent imaging can provide a facile and dynamic manner instead of tedious and time-consuming synthesis due to the dynamic and reversible nature of noncovalent interactions.Herein,based on water-soluble pillararene/paraquat molecular recognition,we successfully prepare two amphiphilic polypseudorotaxanes which can self-assemble into supramolecular polymersomes in water.These polymersomes can be reversibly destroyed and reformed by tuning the solution pH.Attributed to the aggregation-induced emission of tetraphenylethylene groups,intense fluorescence can be introduced into the obtained supramolecular polymersomes.Furthermore,pH-triggered release of an encapsulated water-insoluble drug (doxorubicin) from the self-assembled fluorescent supramolecular polymersomes is also investigated.
其他文献
The copper-catalyzed and metal-free azide-alkyne click polymerizations have become efficient tools for polymer synthesis.However,the 1,3-dipolar polycycloadditi
Intermolecular synergistic adsorption of indole and carbonyl groups induced by intermolecular hydrogen bonding makes microporous organic polymer (PTICBL) exhibi
Phosphazene base,t-BuP2,was employed to catalyze the proton transfer polymerization (PTP) of 2-hydroxyethyl acrylate (HEA),and PTP was further combined with rin
We focus on the distribution and free energy of a wormlike polymer confined between two parallel hard walls.The variation in the distribution and free energy of
Novel bio-based and biodegradable block copolymers were synthesized by click reaction between poly(L-lactide) (PLLA) and polyamide 4 (PA4).Upon tuning the molar
Liquid-liquid (L-L) de-mixing and vitrification of solutions of either crystallizable poly(L-lactic acid) (PLLA) or non-crystallizable poly(D/L-lactic acid) (PD
Cross-linked polyamides (cPAs) were prepared through direct bulk Michael addition and subsequent polycondensation.Several mixed hexanediamine multi-esters (HDAM
Two octaisobutyl-polyhedral oligomeric silsesquioxanes (oib-POSS) reinforced biodegradable poly(ε-caprolactone) (PCL) composites were prepared via two differen
One-component,catalyst-free self-healing coatings with double-shelled polymer microcapsules have drawn considerable attention due to wide applications.In this w
In this study,novel electrochromic copolymers of 3,4-ethylenedioxythiophene (EDOT) and (E)-1,2-bis(2-fluoro-4-(4-hexylthiophen-2-yl)phenyl)diazene (M1) with dif