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SciChinaChem--Understanding enzyme catalysis by means of supramolecular artificial enzymes
Enzymes are biomacromolecules responsible for the abundant chemical biotransformations that sustain life. Recently, biochemists have discovered that multiple conformations and numerous parallel paths are involved during the processes catalyzed by enzymes. It is plausible that the entire macromolecular scaffold is involved in catalysis via cooperative motions that result in incredible catalytic eff...
http://www.polymer.cnt//ss/dongzy/publicationsshow_7700.html |
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SoftMatter--Dual stimuli-responsive supramolecular pseudo-polyrotaxane hydrogels
THPP-(PEG2000-BA)4, a four-branched molecule end-decorated with benzaldehyde (BA), was successfully designed and synthesized. It can form physical pseudo-polyrotaxane (PPR) hydrogels in the presence of α-cyclodextrins (α-CDs). The branched structure of the THPP core promotes gel formation with a small amount of host and guest. Moreover, these resulting hydrogels are dual stimuli-responsive, whic...
http://www.polymer.cnt//ss/dongzy/publicationsshow_7690.html |
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pH-Controlled Reversible Formation of a Supramolecular Hyperbranched Polymer Showing Fluorescence Switching
A pi-conjugated AB(2) monomer 1 with a dibenzo[24]crown-8 (DB24C8) ring and two secondary amine centres has been synthesised. Treatment of a solution of 1 in dichloromethane with trifluoroacetic acid (TFA) leads to protonation of the amine groups, and then the DB24C8 rings are threaded by the dialkylammonium ion centres of other monomer molecules, leading to the formation of a supramolecular hyp...
http://www.polymer.cnt//ss/buwf/publicationsshow_7615.html |
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Heterogeneity, segmental and hydrogen bond dynamics, and aging of supramolecular self-healing rubber
In recent years, self-healing materials have attracted increasing attention due to their potentially spontaneous self-repairing ability after mechanical damage. Here, we focus on a supramolecular self-healing rubber based on fatty acids following the work of Leibler and co-workers. We study the heterogeneous network structure and hydrogen bond dynamics as well as its significant aging properties u...
http://www.polymer.cnt//ss/sunpingchuan/publicationsshow_5168.html |
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Supramolecular Nanoparticles Generated by the Self-assembly of Polyrotaxanes for Anti-tumor Drug Delivery
A new approach of fabricating supramolecular nanoparticles generated by self-assembly polyrotaxanes for antitumor drug delivery has been reported. Cinnamic-acid-modified poly(ethylene glycol) chains were threaded in α-cyclodextrins to form polyrotaxanes. The polyrotaxanes self-assembled supramolecular nanoparticles. The morphology of the nanoparticles was changed from nanovesicle to micelle ...
http://www.polymer.cnt//ss/hebin/publicationsshow_4593.html |
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Thermoresponsive Supramolecular Dendronized Copolymers with Tunable Phase Transition Temperatures
Supramolecular copolymerization from a mixture of comonomers with different hydrophilicities may offer an easy and convenient access to form thermoresponsive supramolecular copolymers with varied phase transition temperatures by simply varying ratios of the comonomers. Herein, supramolecular dendronized copolymers (SDCPs) were constructed via host–guest interaction from a linear polymer carr...
http://www.polymer.cnt//ss/zaf/publicationsshow_4553.html |
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Organic-inorganic Supramolecular Complexes: Self-assembly in Solution and at Surface and Interface
多金属氧簇作为一类功能性无机多阴离子，可以通过与有机阳离子的静电作用形成超
分子复合物，从而用于自组装体系，获得各种各样杂化超分子结构。这种多阴离子表面修饰的方法一方面改善了多金属氧簇的表面性质，另一方面也为构筑各种超分子组装体提供了新颖结构的两亲性构筑基元并展现了独特的自组装性质。主要总结近年来作者在溶液和界面超分子自组装方面的系统研究成果，期望为超分子复合物设计、纳米尺度结构构筑、组装方法和功...
http://www.polymer.cnt//ss/yanyi/publicationsshow_3825.html |
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In situ Gelation of Supramolecular Hydrogel for Anti-Tumor Drug Delivery
A supramolecular injectable hydrogel was fabricated. The hydrogel was in situ gelated by the host-guest interaction between a-cyclodextrins (a-CDs) and methylated poly(ethylene glycol) grafted poly(a,b-malic acid) (mPEG-g-PMA). The hydrogel was characterized by 1NMR, XRD, DSC, TGA and SEM. The results showed that the polyrotaxanes of alpha-CDs/mPEG-g-PMA acted as physical crosslink sites in the hy...
http://www.polymer.cnt//ss/hebin/publicationsshow_3741.html |
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Encapsulation of nanoparticles in block copolymer micellar aggregates by directed supramolecular assembly
Encapsulation of nanoparticles in block copolymer micellar aggregates by directed supramolecular assembly
http://www.polymer.cnt//ss/jintaozhu/publicationsshow_3223.html |
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A supramolecular chiroptical switch based on chitosan and anionic porphyrin complex film
A supramolecular chiroptical switch based on chitosan and tetrakis (4-sulfonatophenyl) porphine (TPPS) complex films was prepared. The reversible changes of the chirality of the complex films were studied by UV-vis and circular dichroism (CD) spectra. It was found that the chirality of the complex films can be wiped off by being exposed to NH3 gas and subsequently recovered by being exposed t...
http://www.polymer.cnt//ss/rgliu/publicationsshow_3140.html |
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