scholarly journals Using Dynamic Covalent Chemistry To Drive Morphological Transitions: Controlled Release of Encapsulated Nanoparticles from Block Copolymer Vesicles

2017 ◽  
Vol 139 (22) ◽  
pp. 7616-7623 ◽  
Author(s):  
Renhua Deng ◽  
Matthew J. Derry ◽  
Charlotte J. Mable ◽  
Yin Ning ◽  
Steven P. Armes
Keyword(s):  
Controlled Release ◽  
Block Copolymer ◽  
Dynamic Covalent Chemistry ◽  
Morphological Transitions ◽  
Encapsulated Nanoparticles

scholarly journals Stimulus-responsive block copolymer nano-objects and hydrogels via dynamic covalent chemistry

2017 ◽  
Vol 8 (35) ◽  
pp. 5374-5380 ◽  
Author(s):  
Renhua Deng ◽  
Yin Ning ◽  
Elizabeth R. Jones ◽  
Victoria J. Cunningham ◽  
Nicholas J. W. Penfold ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Alkaline Solution ◽  
Dynamic Covalent Chemistry ◽  
Stimulus Responsive ◽  
Morphological Transitions

Dynamic covalent chemistry can be used to induce reversible morphological transitions for block copolymer nano-objects in mildly alkaline solution.

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).

Distinct Morphological Transitions of Photoreactive and Thermoresponsive Vesicles for Controlled Release and Nanoreactors

2016 ◽  
Vol 49 (21) ◽  
pp. 8282-8295 ◽  
Author(s):  
Chenzhi Yao ◽  
Xiaorui Wang ◽  
Guhuan Liu ◽  
Jinming Hu ◽  
Shiyong Liu
Keyword(s):  
Controlled Release ◽  
Morphological Transitions

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.

scholarly journals Temperature, ultrasound and redox triple-responsive poly(N-isopropylacrylamide) block copolymer: synthesis, characterization and controlled release

RSC Advances ◽  
2017 ◽  
Vol 7 (68) ◽  
pp. 43212-43226 ◽  
Author(s):  
Yin-Ku Lin ◽  
Yung-Ching Yu ◽  
Shiu-Wei Wang ◽  
Ren-Shen Lee
Keyword(s):  
Controlled Release ◽  
Block Copolymer ◽  
Junction Point ◽  
Stimuli Responsive ◽  
Stimuli Responsive Polymers ◽  
Responsive Polymers

Triple stimuli-responsive polymers PNiPAAm-S-S-PXCL containing a disulfide (–S–S–) bond as a junction point between hydrophilic and hydrophobic chains were synthesized and characterized.

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.

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