Manipulation of Polymer Chain Entanglement and Self-Assembly for DNA Capillary Electrophoresis

2005 ◽  
Vol 227 (1) ◽  
pp. 77-88 ◽  
Author(s):  
Benjamin Chu ◽  
Qicong Ying ◽  
Yanmei Wang ◽  
Jun Zhang
Keyword(s):  
Capillary Electrophoresis ◽  
Polymer Chain ◽  
Self Assembly ◽  
Chain Entanglement

Bottom-up Evolution from Disks to High-Genus Polymersomes

2018 ◽  
Author(s):  
Claudia Contini ◽  
Russell Pearson ◽  
Linge Wang ◽  
Lea Messager ◽  
Jens Gaitzsch ◽  
...  
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Amphiphilic Copolymers ◽  
Chain Entanglement ◽  
Bottom Up ◽  
New Approach ◽  
High Genus ◽  
Transmission Electron ◽  
Minimal Radius ◽  
Stop Flow

<div><div><div><p>We report the design of polymersomes using a bottom-up approach where the self-assembly of amphiphilic copolymers poly(2-(methacryloyloxy) ethyl phosphorylcholine)–poly(2-(diisopropylamino) ethyl methacrylate) (PMPC-PDPA) into membranes is tuned using pH and temperature. We study this process in detail using transmission electron microscopy (TEM), nuclear magnetic resonance (NMR) spectroscopy, dynamic light scattering (DLS), and stop-flow ab- sorbance disclosing the molecular and supramolecular anatomy of each structure observed. We report a clear evolution from disk micelles to vesicle to high-genus vesicles where each passage is controlled by pH switch or temperature. We show that the process can be rationalised adapting membrane physics theories disclosing important scaling principles that allow the estimation of the vesiculation minimal radius as well as chain entanglement and coupling. This allows us to propose a new approach to generate nanoscale vesicles with genus from 0 to 70 which have been very elusive and difficult to control so far.</p></div></div></div>

Bottom-up Evolution from Disks to High-Genus Polymersomes

2018 ◽  
Author(s):  
Claudia Contini ◽  
Russell Pearson ◽  
Linge Wang ◽  
Lea Messager ◽  
Jens Gaitzsch ◽  
...  
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Amphiphilic Copolymers ◽  
Chain Entanglement ◽  
Bottom Up ◽  
New Approach ◽  
High Genus ◽  
Transmission Electron ◽  
Minimal Radius ◽  
Stop Flow

<div><div><div><p>We report the design of polymersomes using a bottom-up approach where the self-assembly of amphiphilic copolymers poly(2-(methacryloyloxy) ethyl phosphorylcholine)–poly(2-(diisopropylamino) ethyl methacrylate) (PMPC-PDPA) into membranes is tuned using pH and temperature. We study this process in detail using transmission electron microscopy (TEM), nuclear magnetic resonance (NMR) spectroscopy, dynamic light scattering (DLS), and stop-flow ab- sorbance disclosing the molecular and supramolecular anatomy of each structure observed. We report a clear evolution from disk micelles to vesicle to high-genus vesicles where each passage is controlled by pH switch or temperature. We show that the process can be rationalised adapting membrane physics theories disclosing important scaling principles that allow the estimation of the vesiculation minimal radius as well as chain entanglement and coupling. This allows us to propose a new approach to generate nanoscale vesicles with genus from 0 to 70 which have been very elusive and difficult to control so far.</p></div></div></div>

Unraveling the kinetics of the structural development during polymerization-induced self-assembly: decoupling the polymerization and the micelle structure

2020 ◽  
Vol 11 (8) ◽  
pp. 1514-1524 ◽  
Author(s):  
Rintaro Takahashi ◽  
Shotaro Miwa ◽  
Fabian H. Sobotta ◽  
Ji Ha Lee ◽  
Shota Fujii ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Aqueous Solutions ◽  
Polymer Chain ◽  
Self Assembly ◽  
Structural Development ◽  
Micelle Structure ◽  
Hydrophobic Polymer ◽  
Kinetics Of

Upon extending a hydrophobic polymer chain from the end of a preceding hydrophilic chain in aqueous solutions, the resultant block copolymers may eventually undergo self-assembly.

XLPE based Al2O3–clay binary and ternary hybrid nanocomposites: self-assembly of nanoscale hybrid fillers, polymer chain confinement and transport characteristics

2014 ◽  
Vol 16 (37) ◽  
pp. 20190-20201 ◽  
Author(s):  
Josmin P. Jose ◽  
Sabu Thomas
Keyword(s):  
Polymer Chain ◽  
Self Assembly ◽  
Transport Mechanism ◽  
Hybrid Nanocomposites ◽  
Hybrid Fillers ◽  
Chain Confinement

Transport mechanism through binary (A & C) and ternary hybrid (AC) XLPE nanocomposites.

The polymer chain entanglement criterion for elastic fracture

1978 ◽  
Vol 16 (4) ◽  
pp. 157-160 ◽  
Author(s):  
J. H. Southern ◽  
R. L. Ballman ◽  
J. A. Burroughs ◽  
D. R. Paul
Keyword(s):  
Polymer Chain ◽  
Chain Entanglement ◽  
Elastic Fracture ◽  
Entanglement Criterion

Capillary electrophoresis of the self-assembly of a novel polycysteine peptide ligand with quantum dots

2018 ◽  
Vol 14 (5) ◽  
pp. 1748-1749
Author(s):  
Jianhao Wang ◽  
Chencheng Zhang ◽  
Li Yang ◽  
Yaqin Gu ◽  
Jianpeng Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Capillary Electrophoresis ◽  
Self Assembly ◽  
The Self ◽  
Peptide Ligand
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