scholarly journals Emergent Properties of Giant Vesicles Formed by a Polymerization-Induced Self-Assembly (PISA) Reaction

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Anders N. Albertsen ◽  
Jan K. Szymański ◽  
Juan Pérez-Mercader
Keyword(s):  
Self Assembly ◽  
Emergent Properties ◽  
Giant Vesicles

Hydrogen-Bonding Mediated Self-Assembly of Amphiphilic ABA Triblock Copolymers into Well-Defined Giant Vesicles

2021 ◽  
Author(s):  
Huiying Wang ◽  
Qiang Chen ◽  
Zhen Geng ◽  
Jingyi Rao ◽  
Bijin Xiong ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Self Assembly ◽  
Triblock Copolymers ◽  
Giant Vesicles

Giant vesicles represent an extremely useful system to mimick biomembranes; however, available methodologies towards easy and direct vesicles construction are still scarce. By designing a hydrogen-bonding (H-bonding) amphiphilic ABA triblock...

scholarly journals Toward Experimental Evolution with Giant Vesicles

Life ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 53 ◽  
Author(s):  
Hironori Sugiyama ◽  
Taro Toyota
Keyword(s):  
Chemical Evolution ◽  
Self Assembly ◽  
Experimental Evolution ◽  
Microfluidic Devices ◽  
Future Perspective ◽  
Cell Models ◽  
Giant Vesicles ◽  
Chemical Models ◽  
Recent Developments ◽  
Oil Emulsions

Experimental evolution in chemical models of cells could reveal the fundamental mechanisms of cells today. Various chemical cell models, water-in-oil emulsions, oil-on-water droplets, and vesicles have been constructed in order to conduct research on experimental evolution. In this review, firstly, recent studies with these candidate models are introduced and discussed with regards to the two hierarchical directions of experimental evolution (chemical evolution and evolution of a molecular self-assembly). Secondly, we suggest giant vesicles (GVs), which have diameters larger than 1 µm, as promising chemical cell models for studying experimental evolution. Thirdly, since technical difficulties still exist in conventional GV experiments, recent developments of microfluidic devices to deal with GVs are reviewed with regards to the realization of open-ended evolution in GVs. Finally, as a future perspective, we link the concept of messy chemistry to the promising, unexplored direction of experimental evolution in GVs.

scholarly journals Synthesis of Non-Uniform Functionalized Amphiphilic Block Copolymers and Giant Vesicles in the Presence of the Belousov–Zhabotinsky Reaction

Biomolecules ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 352 ◽  
Author(s):  
Isadora Berlanga
Keyword(s):  
Photoelectron Spectroscopy ◽  
Self Assembly ◽  
Triblock Copolymer ◽  
Raft Polymerization ◽  
Catalyst Support ◽  
Giant Vesicles ◽  
Bz Reaction ◽  
Reversible Addition ◽  
Morphological Transitions ◽  
New Perspective

Giant vesicles with several-micrometer diameters were prepared by the self-assembly of an amphiphilic block copolymer in the presence of the Belousov–Zhabotinsky (BZ) reaction. The vesicle is composed of a non-uniform triblock copolymer synthesized by multi-step reactions in the presence of air at room temperature. The triblock copolymer contains poly(glycerol monomethacrylate) (PGMA) as the hydrophilic block copolymerized with tris(2,2′-bipyridyl)ruthenium(II) (Ru(bpy)3), which catalyzes the BZ reaction, and 2-hydroxypropyl methacrylate (HPMA) as the hydrophobic block. In this new approach, the radicals generated in the BZ reaction can activate a reversible addition-fragmentation chain transfer (RAFT) polymerization to self-assemble the polymer into vesicles with diameters of approximately 3 µm. X-ray photoelectron spectroscopy (XPS) measurements demonstrated that the PGMA-b-Ru(bpy)3-b-PHPMA triblock copolymer is brominated and increases the osmotic pressure inside the vesicle, leading to micrometer-sized features. The effect of solvent on the morphological transitions are also discussed briefly. This BZ strategy, offers a new perspective to prepare giant vesicles as a platform for promising applications in the areas of microencapsulation and catalyst support, due to their significant sizes and large microcavities.

Hydrodynamically Driven Self-Assembly of Giant Vesicles of Metal Nanoparticles for Remote-Controlled Release

2013 ◽  
Vol 125 (9) ◽  
pp. 2523-2528 ◽  
Author(s):  
Jie He ◽  
Zengjiang Wei ◽  
Lei Wang ◽  
Zuleykhan Tomova ◽  
Taarika Babu ◽  
...  
Keyword(s):  
Controlled Release ◽  
Metal Nanoparticles ◽  
Self Assembly ◽  
Giant Vesicles

Aqueous Self-Assembly of Purely Hydrophilic Block Copolymers into Giant Vesicles

2015 ◽  
Vol 54 (33) ◽  
pp. 9715-9718 ◽  
Author(s):  
Sarah M. Brosnan ◽  
Helmut Schlaad ◽  
Markus Antonietti
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Giant Vesicles

scholarly journals Novel amphiphilic graft block azobenzene-containing copolymer with polypeptide block: synthesis, self-assembly and photo-responsive behavior

RSC Advances ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 5747-5757
Author(s):  
Xiaohua He ◽  
Jianxiang Wu ◽  
Chunyan Gao
Keyword(s):  
Self Assembly ◽  
Click Reaction ◽  
Giant Vesicles ◽  
Responsive Behavior ◽  
Micrometer Size

Giant vesicles (micrometer size) were prepared from novel amphiphilic graft block azobenzene-containing copolymer with polypeptide block synthesized via a combination of ATRP, ROP and click reaction.

Fabrication of Smart pH-Responsive Fluorescent Solid-like Giant Vesicles by Ionic Self-Assembly Strategy

2016 ◽  
Vol 120 (48) ◽  
pp. 27533-27540 ◽  
Author(s):  
Jinglin Shen ◽  
Xia Xin ◽  
Guokui Liu ◽  
Jinyu Pang ◽  
Zhaohua Song ◽  
...  
Keyword(s):  
Self Assembly ◽  
Ph Responsive ◽  
Giant Vesicles ◽  
Assembly Strategy

Spontaneous formation of giant vesicles with tunable sizes based on jellyfish-like graft copolymers

RSC Advances ◽  
2014 ◽  
Vol 4 (103) ◽  
pp. 59323-59330 ◽  
Author(s):  
Ke-Jing Gao ◽  
Xiao-Zhou Liu ◽  
Guangtao Li ◽  
Bo-Qing Xu ◽  
Jianjun Yi
Keyword(s):  
Self Assembly ◽  
Graft Copolymers ◽  
Giant Vesicles ◽  
Spontaneous Formation

For self-assembly studies, a series of “jellyfish-like” graft copolymers with short hydrophilic backbones and long hydrophobic branch chains was adopted. It was found that these special graft copolymers in 1,4-dioxane–water mixtures could self-assemble into giant vesicles with diameter in the range of 0.5–54 μm.

Pillar[10]arene-based host–guest complexation promoted self-assembly: from nanoparticles to uniform giant vesicles

RSC Advances ◽  
2016 ◽  
Vol 6 (46) ◽  
pp. 40418-40421 ◽  
Author(s):  
Jie Yang ◽  
Zhengtao Li ◽  
Li Shao ◽  
Guocan Yu
Keyword(s):  
Self Assembly ◽  
Water Soluble ◽  
Ph Responsive ◽  
Giant Vesicles ◽  
Recognition Motif ◽  
Novel Host

A novel host-guest recognition motif between a water-soluble pillar[10]arene and pyrene derivative was established and further applied in the fabrication of a pH-responsive supra-amphiphile.

scholarly journals Periodic Polymerization and the Generation of Polymer Giant Vesicles Autonomously Driven by pH Oscillatory Chemistry

2021 ◽  
Vol 9 ◽  
Author(s):  
Jinshan Guo ◽  
Eszter Poros-Tarcali ◽  
Juan Pérez-Mercader
Keyword(s):  
Self Assembly ◽  
Morphological Evolution ◽  
Polymerization Process ◽  
Giant Vesicles ◽  
One Pot ◽  
Continuous Increase ◽  
Responsive Materials ◽  
Complex Processes ◽  
The One ◽  
Semibatch Reactor

Using the radicals generated during pH oscillations, a semibatch pH oscillator is used as the chemical fuel and engine to drive polymerization induced self-assembly (PISA) for the one-pot autonomous synthesis of functional giant vesicles. Vesicles with diameters ranging from sub-micron to ∼5 µm are generated. Radical formation is found to be switched ON/OFF and be autonomously controlled by the pH oscillator itself, inducing a periodic polymerization process. The mechanism underlying these complex processes is studied and compared to conventional (non-oscillatory) initiation by the same redox pair. The pH oscillations along with the continuous increase in salt concentration in the semibatch reactor make the self-assembled objects undergo morphological evolution. This process provides a self-regulated means for the synthesis of soft giant polymersomes and opens the door for new applications of pH oscillators in a variety of contexts, from the exploration of new geochemical scenarios for the origin of life and the autonomous emergence of the necessary free-energy and proton gradients, to the creation of active functional microreactors and programmable release of cargo molecules for pH-responsive materials.

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