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Enhanced Gene Transfection Efficiency of PDMAEMA by Incorporating Hydrophobic Hyperbranched Polymer Cores: Effect of Degree of Branching
Poly(2-(dimethylamino)ethyl
methacrylate) (PDMAEMA) is a well-known cationic polymer candidate for non-viral
vectors for gene transfection. However, such an application has been greatly
limited due to the cytotoxicity of the polymers. Herein, PDMAEMAs are grafted
from hydrophobic hyperbranched PEHO cores (PEHO means
poly(3-ethyl-3-(hydroxymethyl)-oxetane)), and the obtained hy...
http://www.polymer.cn//ss/zhouyongfeng/publicationsshow_8078.html |
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Polymerization-like Multilevel Hierarchical Self-Assembly of Polymer Vesicles into Macroscopic Superstructures with Controlled Complexity
We demonstrate a high-leveled hierarchical self-assembly process into
fractal structures. Two hyperbranched multiarm copolymers are first
coassembled into binary isotropic vesicles in the primary self-assembly.
Then, these primary vesicles are in situ endowed with anisotropic
hydrophobic “binding sites” through a pH-induced lateral microphase
separation, undergoing an isotropic?...
http://www.polymer.cn//ss/zhouyongfeng/publicationsshow_8046.html |
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A Supramolecular Janus Hyperbranched Polymer and Its Photoresponsive Self-Assembly of Vesicles with Narrow Size Distribution
Herein, we report a novel Janus
particle and supramolecular block copolymer consisting of two chemically
distinct hyperbranched polymers, which is coined as Janus hyperbranched polymer.
It is constructed by the noncovalent coupling between a hydrophobic
hyperbranched poly(3-ethyl-3-oxetanemethanol) with an apex of an azobenzene
(AZO) group and a hydrophilic hyperbranched polyglycerol w...
http://www.polymer.cn//ss/zhouyongfeng/publicationsshow_8037.html |
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Temperature-Responsive Phase Transition of Polymer Vesicles: Real-Time Morphology Observation and Molecular Mechanism
Novel thermosensitive polymer vesicles with controlled temperature-responsive phase transition at the lower critical solution temperature (LCST) varying from 8 to 81 °C were prepared via self-assembly of amphiphilic hyperbranched star copolymers having a hydrophobic hyperbranched poly[3-ethyl-3-(hydroxymethyl)oxetane] (HBPO) core and many hydrophilic polyethylene oxide (PEO) arms. Real-time optic...
http://www.polymer.cn//ss/zhouyongfeng/publicationsshow_8030.html |
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Folate decorated and reduction-sensitive micelles assembled from amphiphilic polymer–camptothecin conjugates for intracellular drug delivery
C.Y. Liu, J. Yuan, X.M. Luo, M.H. Chen, Z.J. Chen, Y.C. Zhao, X.H. Li*. Folate decorated and
reduction-sensitive micelles assembled from amphiphilic polymer–camptothecin
conjugates for intracellular drug delivery. Mol.
Pharm., 11, 4258?4269 (2014). (ACS Editors’ Choice)
http://pubs.acs.org/doi/full/10.1021/mp500468d
http://www.polymer.cn//ss/xiaohongli/publicationsshow_8015.html |
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Parallel carbon nanotube stripes in polymer thin film with tunable microstructures and anisotropic conductive properties
It is known that shear-flow can induce units to assemble into vorticity-aligned stripe-structures in confined
geometries. This study shows that the microstructure and the property of the stripe in polymer thin
film can be well tuned by adjusting the viscosity ratio between dispersed phase and continuous phase.
Polypropylene (PP)/poly(styrene–ethylene/butadiene–styrene) (SEBS)/octadecylamine func...
http://www.polymer.cn//ss/zhuyutian/publicationsshow_7951.html |
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Hollow Double-Layered Polymer Microspheres with pH and Thermo-Responsive Properties as Nitric Oxide-Releasing Reservoirs
Nitric
oxide-releasing hollow double-layered polymer microspheres (HDPMs) with both
pH- and thermo-responsive properties in aqueous media are designed and prepared
by a multi-step process. Silica/polymer (SiO2/P(bocAmEMA-co-EGDMA)) core-shell microspheres with boc-protected
secondary amino groups are synthesized by distillation precipitation copolymerization
of 2-(ethyl(boc)amino)ethyl methac...
http://www.polymer.cn//ss/yangxinlin/publicationsshow_7941.html |
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[Chem. Commun.] A supramolecular hyperbranched polymer based on molecular recognition between benzo-21-crown-7 and secondary ammonium salt
A novel A2-B3-type supramolecular hyperbranched polymer was prepared based on the benzo-21-crown-7/secondary ammonium salt recognition motif. The resulting supramolecular polymer exhibited a reversible disassembled–assembled process by adding or removing potassium ions.
全文链接：http://pubs.rsc.org/en/content/articlelanding/2014/cc/c4cc07171a#!divAbstract
http://www.polymer.cn//ss/tianwei/publicationsshow_7923.html |
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[Polymer] Large complex micelles formed from amphiphilic H-shaped terpolymers with adjustable block ratio by ultrasonic vibration
Large complex micelles based on H-shaped terpolymers (poly(ethylene glycol))(poly(N,N-dimethylaminoethyl methacrylate))-polytetrahydrofuran-(poly(N,N-dimethylaminoethyl methacrylate)) (poly(ethylene glycol)) ((PEG)(PDMA)-PTHF-(PDMA)(PEG)), with proper block ratio, are obtained through ultrasonic vibration. However, similar micellar morphology is not found using other traditional m...
http://www.polymer.cn//ss/tianwei/publicationsshow_7920.html |
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Gradiently Varied Chain Packing/Orientation States of Polymer Thin Films Revealed by Polarization-dependent Infrared Absorption
Gradiently varied chain packing/orientation states of the polyacrylamide (PAL) thin films spin-coated on the gold (Au) substrates were found via the polarized reflection-absorption fourier transform infrared spectroscopy (RA-FTIR). As the film thickness increases, the splitted amide I bands provide a direct evidence that the PAL thin films are of a gradiently varied bi-layered structure. I...
http://www.polymer.cn//ss/cenglxl/publicationsshow_7896.html |
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