Cyclic polymers with pendant triphenylene discogens: convenient synthesis and topological effect on thermotropic liquid crystal behavior and fluorescence enhancement

2016 ◽  
Vol 7 (39) ◽  
pp. 6034-6038 ◽  
Author(s):  
Bin Mu ◽  
Qian Li ◽  
Xiao Li ◽  
Shi Pan ◽  
Yang Zhou ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Fluorescence Enhancement ◽  
Enhanced Fluorescence ◽  
Cyclic Polymers ◽  
Topological Constraint ◽  
Aggregation Induced Emission ◽  
Thermotropic Liquid Crystal ◽  
Convenient Synthesis ◽  
Topological Effect

Cyclic topological constraint suppresses columnar ordering while showing remarkably enhanced fluorescence as a supplement of aggregation-induced emission (AIE).

Reversible microscale assembly of nanoparticles driven by the phase transition of a thermotropic liquid crystal

2017 ◽  
Author(s):  
Niamh Mac Fhionnlaoich ◽  
Stephen Schrettl ◽  
Nicholas B. Tito ◽  
Ye Yang ◽  
Malavika Nair ◽  
...  
Keyword(s):  
Phase Transition ◽  
Liquid Crystal ◽  
Self Assembly ◽  
Nematic Phase ◽  
Hierarchical Control ◽  
Building Blocks ◽  
Model System ◽  
Microscopic Level ◽  
Reversible Process ◽  
Thermotropic Liquid Crystal

The arrangement of nanoscale building blocks into patterns with microscale periodicity is challenging to achieve via self-assembly processes. Here, we report on the phase transition-driven collective assembly of gold nanoparticles in a thermotropic liquid crystal. A temperature-induced transition from the isotropic to the nematic phase leads to the assembly of individual nanometre-sized particles into arrays of micrometre-sized aggregates, whose size and characteristic spacing can be tuned by varying the cooling rate. This fully reversible process offers hierarchical control over structural order on the molecular, nanoscopic, and microscopic level and is an interesting model system for the programmable patterning of nanocomposites with access to micrometre-sized periodicities.

Sensitive and specific detection of peroxynitrite and in-vivo imaging of inflammation by a "simple" AIE bioprobe

2021 ◽  
Author(s):  
Huilin Xie ◽  
Jingtian Zhang ◽  
Chao Chen ◽  
Feiyi Sun ◽  
Haixiang Liu ◽  
...  
Keyword(s):  
In Vivo Imaging ◽  
Fluorescence Enhancement ◽  
Specific Detection ◽  
Aggregation Induced Emission

A luminogenic bioprobe TPE-DMAB for simple and specific detection of peroxynitrite (ONOO−) has been developed. TPE-DMAB exhibits aggregation-induced emission (AIE) characteristic and shows fluorescence enhancement (up to 100-fold) upon cleavage...

Inhomogeneous relaxation dynamics and phase behaviour of a liquid crystal confined in a nanoporous solid

Soft Matter ◽  
2015 ◽  
Vol 11 (16) ◽  
pp. 3176-3187 ◽  
Author(s):  
Sylwia Całus ◽  
Andriy V. Kityk ◽  
Manfred Eich ◽  
Patrick Huber
Keyword(s):  
Liquid Crystal ◽  
Dielectric Spectroscopy ◽  
Phase Behaviour ◽  
Relaxation Dynamics ◽  
Thermotropic Liquid Crystal ◽  
Structure And Dynamics

Dielectric spectroscopy reveals a radial partitioning in the structure and dynamics of a thermotropic liquid crystal confined in silica nanochannels.

Copper stearate as a thermotropic liquid crystal

1978 ◽  
Vol 256 (6) ◽  
pp. 588-590 ◽  
Author(s):  
M. Takekoshi ◽  
N. Watanabe ◽  
B. Tamamushi
Keyword(s):  
Liquid Crystal ◽  
Thermotropic Liquid Crystal
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