Pyrrole-based anion-responsive π-electronic molecules as fluorescence sensors responsive to multiple stimuli

2020 ◽  
Vol 18 (23) ◽  
pp. 4433-4438
Author(s):  
Shinya Sugiura ◽  
Hiromitsu Maeda
Keyword(s):  
Electron Transfer ◽  
Solvent Polarity ◽  
Anion Binding ◽  
Fluorescence Sensors ◽  
Fluorescence Switching ◽  
Photo Induced Electron Transfer

Anion-responsive π-electronic molecules with electron-donating aryl substituents exhibited photo-induced electron transfer and resulting fluorescence switching properties, which were controlled by solvent polarity, anion binding and protonation.

Tetraphenylethene– and diphenyldibenzofulvene–anthracene-based fluorescence sensors possessing photo-induced electron transfer and aggregation-induced emission enhancement characteristics for detection of water

2018 ◽  
Vol 42 (16) ◽  
pp. 13339-13350 ◽  
Author(s):  
Yousuke Ooyama ◽  
Rizumu Sagisaka ◽  
Toshiaki Enoki ◽  
Nao Tsunoji ◽  
Joji Ohshita
Keyword(s):  
Electron Transfer ◽  
Water Content ◽  
High Water ◽  
High Water Content ◽  
Fluorescence Sensors ◽  
Aggregation Induced Emission ◽  
Emission Enhancement ◽  
Photo Induced Electron Transfer

RS-1 and RS-2 have been developed as PET/AIEE hybrid fluorescence sensors for detection of water in the low and high water content regions in solvents.

meso-Arylethynyl subporphyrins as efficient and tunable photo-induced electron transfer units

2017 ◽  
Vol 21 (02) ◽  
pp. 152-157 ◽  
Author(s):  
Won-Young Cha ◽  
Juwon Oh ◽  
Masaaki Kitano ◽  
Atsuhiro Osuka ◽  
Dongho Kim
Keyword(s):  
Electron Transfer ◽  
Excited State ◽  
Fluorescence Quenching ◽  
Charge Separation ◽  
Solvent Polarity ◽  
Enhanced Fluorescence ◽  
Excited State Dynamics ◽  
Photo Induced Electron Transfer

Excited state dynamics of meso-arylethynyl-substituted subporphyrins can be tuned by 4-substituent at the arylethynyl group and solvent polarity. In polar acetonitrile, phenylethynyl subporphyrin 1 exhibited enhanced fluorescence, while (4-dimethylaminophenyl)ethynyl subporphyrin 2 showed red-shifted fluorescence from its charge-separated state and (4-nitrophenyl)ethynyl subporphyrin 3 displayed efficient fluorescence quenching due to charge separation.

Molecular design and synthesis of fluorescence PET (photo-induced electron transfer) sensors for detection of water in organic solvents

RSC Advances ◽  
2013 ◽  
Vol 3 (45) ◽  
pp. 23255 ◽  
Author(s):  
Yousuke Ooyama ◽  
Koji Uenaka ◽  
Ai Matsugasako ◽  
Yutaka Harima ◽  
Joji Ohshita
Keyword(s):  
Electron Transfer ◽  
Organic Solvents ◽  
Molecular Design ◽  
Design And Synthesis ◽  
Photo Induced Electron Transfer

Preparation and Characterization of Glycyrrhizin-Graphene Hybrid Materials

2012 ◽  
Vol 531 ◽  
pp. 145-148
Author(s):  
Zong Hua Wang ◽  
Yan Li Gao ◽  
Jian Fei Xia ◽  
Fei Fei Zhang ◽  
Yan Zhi Xia ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Hybrid Materials ◽  
Model Compound ◽  
Carbon Electrode ◽  
The Novel ◽  
Electron Transfer Process ◽  
Efficient Energy ◽  
Sandwich Construction ◽  
Photo Induced Electron Transfer

A glycyrrhizin decorated graphene hybrid materials (GL-G) was synthesized, which is a layer-to-layer sandwich construction. The results of characterization indicate that a photo induced electron transfer process or efficient energy transferring along the GL-G interface. Furthermore, the as-made hybrid material was used as a modifier of the glassy carbon electrode to construct a sensor (GL-G/GCE). Using p-nitrophenol as a model compound, the novel sensor demonstrated a highly enhanced electrochemical activity for it. The peak current of p-nitrophenol was significantly improved at the sensor.

scholarly journals Development of highly sensitive fluorescent sensor and fluorescent sensor-doped polymer films for trace amounts of water based on photo-induced electron transfer

2021 ◽  
Author(s):  
Saori Miho ◽  
Takuma Fumoto ◽  
Yuta Mise ◽  
Keiichi Imato ◽  
Seiji Akiyama ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Polymer Films ◽  
Fluorescent Sensor ◽  
Cyano Group ◽  
Phenylboronic Acid ◽  
Hydroxymethyl Group ◽  
Highly Sensitive ◽  
Water Based ◽  
Photo Induced Electron Transfer ◽  
Doped Polymer

Anthracene-(aminomethyl)phenylboronic acid pinacol ester (AminoMePhenylBPin) SM-1 having a cyano group as an electron-withdrawing substituent and a hydroxymethyl group has been developed as a highly sensitive PET (photo-induced electron transfer)-type fluorescent...

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