scholarly journals Euclidean Geodesic Loops on High-Genus Surfaces Applied to the Morphometry of Vestibular Systems

Author(s):  
Shi-Qing Xin ◽  
Ying He ◽  
Chi-Wing Fu ◽  
Defeng Wang ◽  
Shi Lin ◽  
...  
Keyword(s):  
2018 ◽  
Author(s):  
Claudia Contini ◽  
Russell Pearson ◽  
Linge Wang ◽  
Lea Messager ◽  
Jens Gaitzsch ◽  
...  

<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>


2018 ◽  
Author(s):  
Claudia Contini ◽  
Russell Pearson ◽  
Linge Wang ◽  
Lea Messager ◽  
Jens Gaitzsch ◽  
...  

<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>


2017 ◽  
Vol 29 (12) ◽  
pp. 2225 ◽  
Author(s):  
Kun Qian ◽  
Jialing Zhang ◽  
Yinghua Li ◽  
Yibin Lyu ◽  
Kehua Su
Keyword(s):  

Author(s):  
Clifford Gilmore ◽  
Etienne Le Masson ◽  
Tuomas Sahlsten ◽  
Joe Thomas

2021 ◽  
Author(s):  
Sha Lin ◽  
Fangyingkai Wang ◽  
Jianzhong Du

We report a high-genus multicompartment vesicle (HGMV) that is self-assembled from poly(ethylene oxide)-block-poly[4-azophenyl-(2-carbamoyloxymethyl)ethyl methacrylate] (PEO43-b-PACEMA10). The formation process of these HGMVs was investigated by transmission electron microscopy (TEM), fluorescence spectroscopy,...


1997 ◽  
Vol 55 (15) ◽  
pp. 9969-9974 ◽  
Author(s):  
Humberto Terrones ◽  
Mauricio Terrones

2016 ◽  
Vol 24 (4) ◽  
pp. 2472-2484 ◽  
Author(s):  
Chen Wang ◽  
Hongbo Jiang ◽  
Tianlong Yu ◽  
John C. S. Lui
Keyword(s):  

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