scholarly journals Semi-crystalline block copolymer bicontinuous nanospheres for thermoresponsive controlled release

RSC Advances ◽  
2014 ◽  
Vol 4 (50) ◽  
pp. 26354-26358 ◽  
Author(s):  
Simon J. Holder ◽  
Glen Woodward ◽  
Beulah McKenzie ◽  
Nico A. J. M. Sommerdijk
Keyword(s):  
Controlled Release ◽  
Block Copolymer ◽  
Amphiphilic Block Copolymer ◽  
Hydrophobic Molecule ◽  
Self Assembled

We demonstrate the controlled release of pyrene, as a model hydrophobic molecule, from self-assembled bicontinuous nanospheres formed from an amphiphilic block copolymer.

scholarly journals Novel fluorescent amphiphilic copolymer probes containing azo-tetraphenylethylene bridges for azoreductase-triggered release

2019 ◽  
Vol 3 (6) ◽  
pp. 1097-1104 ◽  
Author(s):  
Xiaojie Yuan ◽  
Zhe Wang ◽  
Lishan Li ◽  
Jiawei Yu ◽  
Yuqing Wang ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Fluorescent Probe ◽  
Amphiphilic Copolymer ◽  
Amphiphilic Block Copolymer ◽  
Triggered Release ◽  
Azo Reductase ◽  
Self Assembled

A novel AIE fluorescent probe of amphiphilic block copolymer PCL-TPE-Azo-PEG was successfully synthesized based on azo reductase response. The polymer can be self-assembled and showed fluorescence improvement during reductant-triggered release.

Self-assembly and disassembly of a redox-responsive ferrocene-containing amphiphilic block copolymer for controlled release

2015 ◽  
Vol 6 (10) ◽  
pp. 1817-1829 ◽  
Author(s):  
Lichao Liu ◽  
Leilei Rui ◽  
Yun Gao ◽  
Weian Zhang
Keyword(s):  
Controlled Release ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Rhodamine B ◽  
Self Assembly ◽  
Amphiphilic Block Copolymer ◽  
Model Molecule ◽  
Redox Responsive

The synthesis and self-assembly of ferrocene-containing block copolymers PEG-b-PMAEFc, and the encapsulation and redox-responsive release of a model molecule (rhodamine B) upon external redox stimuli (H2O2).

A star-shaped amphiphilic block copolymer with dual responses: synthesis, crystallization, self-assembly, redox and LCST–UCST thermoresponsive transition

2016 ◽  
Vol 7 (30) ◽  
pp. 4901-4911 ◽  
Author(s):  
Hua Yuan ◽  
Hai Chi ◽  
Weizhong Yuan
Keyword(s):  
Block Copolymer ◽  
Self Assembly ◽  
Amphiphilic Block Copolymer ◽  
Redox Responsive ◽  
Self Assembled

The micelles/aggregates that were self-assembled from a star-shaped copolymer presented redox-responsive behaviour and LCST–UCST thermoresponsive transition.

Visible light-triggered disruption of micelles of an amphiphilic block copolymer with BODIPY at the junction

2015 ◽  
Vol 51 (100) ◽  
pp. 17708-17711 ◽  
Author(s):  
Naganath G. Patil ◽  
Nitin B. Basutkar ◽  
Ashootosh V. Ambade
Keyword(s):  
Controlled Release ◽  
Block Copolymer ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Single Step ◽  
Light Irradiation ◽  
Amphiphilic Block Copolymer

Photocleavable BODIPY functionalised with ATRP initiator and alkyne was used to obtain amphiphilic block copolymer in a single step. Micellar assembly of the polymer was disintegrated under visible light irradiation with controlled release of cargo.

Functional micelles formed from glucose-, thermo- and pH-triple responsive copolymers for controlled release

2017 ◽  
Vol 8 (33) ◽  
pp. 4869-4877 ◽  
Author(s):  
Hui Zou ◽  
Chunyao Wang ◽  
Weizhong Yuan ◽  
Shanfeng Wang ◽  
Maoquan Li
Keyword(s):  
Controlled Release ◽  
Block Copolymer ◽  
Spherical Micelles ◽  
Self Assembled

Spherical micelles self-assembled from the block copolymer PPBDEMA-b-PDMAEMA presented glucose, thermo- and pH-triple responsive properties.

Vertical alignment of liquid crystals using an in situ self-assembled layer of an amphiphilic block copolymer

2016 ◽  
Vol 24 (3) ◽  
pp. 235-239 ◽  
Author(s):  
Intae Son ◽  
Jae Hong Kim ◽  
Byungsun Lee ◽  
Chunho Kim ◽  
Ji Yong Yoo ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Block Copolymer ◽  
Amphiphilic Block Copolymer ◽  
Vertical Alignment ◽  
Self Assembled ◽  
Self Assembled Layer

Self-assembled multimicellar vesicles via complexation of a rigid conjugated polymer with an amphiphilic block copolymer

RSC Advances ◽  
2014 ◽  
Vol 4 (97) ◽  
pp. 54752-54759 ◽  
Author(s):  
Anbazhagan Palanisamy ◽  
Qipeng Guo
Keyword(s):  
Block Copolymer ◽  
Conjugated Polymer ◽  
Amphiphilic Block Copolymer ◽  
Flexible Coil ◽  
Rigid Rod ◽  
Assembled Complexes ◽  
Self Assembled

We report here a facile method for fabrication of multimicellar vesicles from self-assembled complexes of a flexible coil-like block copolymer and a rigid rod conjugated homopolymer.

Photoacoustic effect and controlled release of azo and Schiff base derivatives modified by click reagents under the NIR light

2020 ◽  
Vol 49 (4) ◽  
pp. 331-338
Author(s):  
Libin Yang ◽  
Dong Wang ◽  
Hong Gao ◽  
Hui Cao ◽  
Yuzhen Zhao ◽  
...  
Keyword(s):  
Schiff Base ◽  
Controlled Release ◽  
Block Copolymer ◽  
Near Infrared ◽  
Organic Dyes ◽  
Amphiphilic Block Copolymer ◽  
Content Type ◽  
Nir Light ◽  
Schiff Base Derivatives ◽  
Stimuli Sensitive

Purpose This study aims to develop a new kind of functional low molecular weight organic dyes, which is highly efficient, meanwhile inexpensive and easily prepared and modified and can be used in photoacoustic (PA) imaging and photothermal therapy (PTT). To further realize the release of molecules under the biomedical condition, the releasing efficiency of micellar nanoparticles under different stimuli were represented. Design/methodology/approach A class of azo and Schiff base derivatives with different click reagents were characterized by PA imaging and photothermal (PT) experiments. The molecule with best PT effect was loaded into a temperature-stimuli-sensitive amphiphilic block copolymer which demonstrated the capability of releasing the polymers under the near-infrared (NIR) light of 650 nm. Findings The PA and PT effects of a series of azo and Schiff base derivatives with different click reagents were characterized. Introducing the click reagent F4-TCNQ can result in red shift of peaks of PA intensity. Stimulated with 650 nm laser irradiation, the polymer processed higher release rate than being stimulated by temperature stimuli. Practical implications This paper not only guides the design of NIR dyes with good PA intensity but also provides a method which has great potential for the application of NIR photothermal dyes in the field of biotechnology for controlled release. Originality/value This paper uses click reagents to modify azo and Schiff derivatives and an amphiphilic block copolymer under NIR light to realize controlled release.

Nanocavitation in Self-Assembled Amphiphilic Block Copolymer-Modified Epoxy

2008 ◽  
Vol 41 (20) ◽  
pp. 7616-7624 ◽  
Author(s):  
Jia (Daniel) Liu ◽  
Hung-Jue Sue ◽  
Zachary J. Thompson ◽  
Frank S. Bates ◽  
Marv Dettloff ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Amphiphilic Block Copolymer ◽  
Self Assembled ◽  
Modified Epoxy
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