Humidity‐Responsive Liquid Crystalline Network Actuator Showing Synergistic Fluorescence Color Change Enabled by Aggregation Induced Emission Luminogen

2021 ◽  
Vol 31 (17) ◽  
pp. 2010578
Author(s):  
Ruochen Lan ◽  
Yanzi Gao ◽  
Chen Shen ◽  
Rui Huang ◽  
Jinying Bao ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Color Change ◽  
Aggregation Induced Emission ◽  
Fluorescence Color

Fluorescence Color Change of Aggregation-Induced Emission of 4-[Bis(4-methylphenyl)amino]benzaldehyde

ChemPhysChem ◽  
2013 ◽  
Vol 14 (17) ◽  
pp. 3898-3901 ◽  
Author(s):  
Motoki Kurita ◽  
Mika Momma ◽  
Kei Mizuguchi ◽  
Hideyuki Nakano
Keyword(s):  
Color Change ◽  
Aggregation Induced Emission ◽  
Fluorescence Color

Fluorescence Color Change of a Boron-Substituted Diarylazomethine by Reaction with a Cyanide Ion

2010 ◽  
Vol 83 (10) ◽  
pp. 1185-1187 ◽  
Author(s):  
Junro Yoshino ◽  
Naokazu Kano ◽  
Takayuki Kawashima
Keyword(s):  
Color Change ◽  
Cyanide Ion ◽  
Fluorescence Color

Synthesis and Characterization of Liquid‐Crystalline Tetraoxapentacene Derivatives Exhibiting Aggregation‐Induced Emission

2018 ◽  
Author(s):  
Lana K. Hiscock ◽  
Brooke M. Raycraft ◽  
Monika Wałęsa‐Chorab ◽  
Coralie Cambe ◽  
Alexandre Malinge ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Synthesis And Characterization ◽  
Aggregation Induced Emission

scholarly journals Synthesis and Characterization of Photoluminescence Liquid Crystals Based on Flexible Chain-Bearing Pentafluorinated Bistolanes

Crystals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 603
Author(s):  
Shigeyuki Yamada ◽  
Masaya Sato ◽  
Tsutomu Konno
Keyword(s):  
Phase Transition ◽  
Liquid Crystals ◽  
Oxygen Atom ◽  
Liquid Crystalline ◽  
Color Change ◽  
Photophysical Properties ◽  
Structure Property ◽  
Flexible Chain ◽  
Structure Property Relationships ◽  
Chiral Nematic

The liquid-crystalline (LC) and photophysical properties of molecules are very sensitive to their electronic and molecular aggregate structures. Herein, to shed light on the structure–property relationships of pentafluorinated bistolane-based photoluminescence (PL) liquid crystals (PLLCs) previously reported by our group, we synthesized pentafluorinated bistolanes with variable flexible chains and evaluated their LC and photophysical properties. The incorporation of an oxygen atom (to afford a 2-methoxyethoxy unit) or an oxygen atom and a methyl group (to afford a 1-methoxyprop-2-oxy unit) into the flexible butoxy chain significantly decreased the temperature of the crystalline-to-LC phase transition, and a chiral nematic phase comprising helical molecular aggregates was observed for the chiral 1-methoxyprop-2-oxy group–bearing bistolane. The synthesized bistolanes exhibited strong blue PL in both solution and crystalline phases; the featuring PL characteristics were maintained in the LC phase (produced by the crystalline-to-LC phase transition) except for a slight PL color change. Thus, it was concluded that the PL behavior of pentafluorinated bistolanes can be modulated by the choice of a suitable flexible chain, and the obtained insights are believed to facilitate the application of PLLCs in thermosensing PL materials.

Ultra‐pH‐Sensitive Small Molecule Probe Showing a Ratiometric Fluorescence Color Change

ChemPhotoChem ◽  
2020 ◽  
Vol 4 (6) ◽  
pp. 393-397 ◽  
Author(s):  
Junjie Cui ◽  
Gayoung Kim ◽  
Sehoon Kim ◽  
Ji Eon Kwon ◽  
Soo Young Park
Keyword(s):  
Small Molecule ◽  
Color Change ◽  
Ph Sensitive ◽  
Ratiometric Fluorescence ◽  
Fluorescence Color ◽  
Small Molecule Probe

A confined carbon dot-based self-calibrated fluorescence probe for visible and high-sensitivity moisture readouts

2021 ◽  
Author(s):  
Zhong-Zheng Ding ◽  
Guang-Song Zheng ◽  
Qing Lou ◽  
Jiang-Fan Han ◽  
Meng-Yuan Wu ◽  
...  
Keyword(s):  
High Performance ◽  
Potential Role ◽  
Fluorescence Probe ◽  
Color Change ◽  
High Sensitivity ◽  
Confinement Effect ◽  
Detection Range ◽  
Fluorescence Color ◽  
Highly Sensitive ◽  
New Type

Abstract Excellent luminescent materials are essential for high-performance fluorescent nanosensors. Here, a new-type self-calibrated humidity sensor has been established through monitoring the fluorescent color change of carbon dots (CDs) confined in sodium hydroxide (CDs@NaOH). The CDs are prepared by a facile and rapid microwave assisted heating method using citric acid, urea, and NaOH as precursors. The confinement effect from NaOH has reduced the nonradiative transition and suppressed the aggregation-induced quenching of the CDs in solid. Compared with other sensors based on CD fluorescent visualization, the sensor has good linearity and wide humidity detection range from 6.9% to 95.4%. With the increased relative humidity, the fluorescence color of the sensor change from green to blue. The proposed sensing mechanism is due to the breaking and reforming of hydrogen bonds and proton transfer occurring at the CD-NaOH matrix interfaces. This finding suggests a potential role for the spatial confinement effect and may provide an avenue for developing highly sensitive humidity readouts.

Preparation and properties of side chain liquid crystalline polymers with aggregation-induced emission enhancement characteristics

2018 ◽  
Vol 6 (26) ◽  
pp. 7119-7127 ◽  
Author(s):  
Yongjie Yuan ◽  
Jindi Li ◽  
Lifang He ◽  
Yiwu Liu ◽  
Hailiang Zhang
Keyword(s):  
Liquid Crystalline ◽  
Liquid Crystalline Polymers ◽  
Side Chain ◽  
Aggregation Induced Emission ◽  
Crystalline Polymers ◽  
Emission Enhancement

A series of polymers with aggregation-induced emission enhancement characteristics and stable liquid crystalline properties were prepared.

High Solid-State Efficiency Fluorescent Main Chain Liquid Crystalline Polytriazoles with Aggregation-Induced Emission Characteristics

2011 ◽  
Vol 44 (24) ◽  
pp. 9618-9628 ◽  
Author(s):  
Wang Zhang Yuan ◽  
Zhen-Qiang Yu ◽  
Youhong Tang ◽  
Jacky W. Y. Lam ◽  
Ni Xie ◽  
...  
Keyword(s):  
Solid State ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Emission Characteristics ◽  
Aggregation Induced Emission ◽  
High Solid
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