Enhanced Fluorescence Properties of Poly(phenylene ethynylene)-Conjugated Polyelectrolytes Designed to Avoid Aggregation

2014 ◽  
Vol 3 (5) ◽  
pp. 405-409 ◽  
Author(s):  
Jan-Moritz Koenen ◽  
Xuzhi Zhu ◽  
Zhenxing Pan ◽  
Fude Feng ◽  
Jie Yang ◽  
...  
Keyword(s):  
Fluorescence Properties ◽  
Phenylene Ethynylene ◽  
Conjugated Polyelectrolytes ◽  
Enhanced Fluorescence

Naphthalimide-containing conjugated polyelectrolytes with different chain configurations

2019 ◽  
Vol 17 (10) ◽  
pp. 2635-2639 ◽  
Author(s):  
Yu Chen ◽  
Ying Tan ◽  
Chunyan Tan ◽  
Yunpeng Lu ◽  
Yuzong Chen ◽  
...  
Keyword(s):  
Polymer Chain ◽  
Photophysical Properties ◽  
Phenylene Ethynylene ◽  
Conjugated Polyelectrolytes

Different polymer chain configurations along the main chains of poly(naphthalimide and phenylene ethynylene)s lead to dramatic differences in polymer conformations and photophysical properties.

Enhanced fluorescence of phthalimide compounds induced by the incorporation of electron-donating alicyclic amino groups

2018 ◽  
Vol 20 (23) ◽  
pp. 16033-16044 ◽  
Author(s):  
Ryoji Orita ◽  
Marius Franckevičius ◽  
Aurimas Vyšniauskas ◽  
Vidmantas Gulbinas ◽  
Haruki Sugiyama ◽  
...  
Keyword(s):  
Fluorescence Properties ◽  
Amino Groups ◽  
Enhanced Fluorescence ◽  
Significant Difference ◽  
Phthalimide Compounds

A significant difference in fluorescence properties between 3- and 4-substituted phthalimides demonstrates the formation of excited TICT and planar ICT states, respectively.

Thermally Induced Structural Transition of Peptide Nanofibers into Nanoparticles with Enhanced Fluorescence Properties

ChemPlusChem ◽  
2020 ◽  
Vol 85 (7) ◽  
pp. 1523-1528
Author(s):  
Qing Li ◽  
Xin Yang ◽  
Liwei Zhang ◽  
Yuefei Wang ◽  
Jia Kong ◽  
...  
Keyword(s):  
Structural Transition ◽  
Fluorescence Properties ◽  
Enhanced Fluorescence ◽  
Thermally Induced ◽  
Peptide Nanofibers

The enhanced fluorescence properties & colloid stability of aqueous CdSe/ZnS QDs modified with N-alkylated poly(ethyleneimine)

2015 ◽  
Vol 39 (6) ◽  
pp. 4334-4342 ◽  
Author(s):  
Huanjie Tang ◽  
Changhua Zhou ◽  
Ruili Wu ◽  
Mao Mao ◽  
Huaibin Shen ◽  
...  
Keyword(s):  
Colloidal Stability ◽  
Fluorescence Properties ◽  
Colloid Stability ◽  
Enhanced Fluorescence ◽  
Pl Intensity

Amino-functionalized hydrophilic QDs insulated with PEI(n)Cs had enhanced PL intensity and colloidal stability compared to those of PEI-QDs.

Tunable nanothermometer based on short poly(phenylene ethynylene)

RSC Advances ◽  
2016 ◽  
Vol 6 (71) ◽  
pp. 67002-67010 ◽  
Author(s):  
Ghinwa H. Darwish ◽  
Jihane Abouzeid ◽  
Pierre Karam
Keyword(s):  
Phenylene Ethynylene ◽  
Conjugated Polyelectrolytes

We report a self-referencing ratiometric nanothermometer based on short conjugated polyelectrolytes (CPEs).

scholarly journals Synthesis and Fluorescent Properties of Novel Mono- and Di-Substituted 1,8-Naphthalimide Derivatives at the C-4 Position

2017 ◽  
Author(s):  
Ying Fu ◽  
Xiao-Xiao Pang ◽  
Kui Wang ◽  
Zhi-Qiang Wang ◽  
Guan-Yu Li ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Chain Structure ◽  
Fluorescence Properties ◽  
Stacking Interactions ◽  
Fluorescent Properties ◽  
Enhanced Fluorescence ◽  
Pi Stacking ◽  
Molecular Core ◽  
Long Chain

A series of novel N-n-butyl-1,8-naphthalimide derivatives were synthesized via a three-step reaction involving nucleophilic substitution and acylation. All of the compounds were characterized by IR, 1H NMR, 13C NMR, MS, and elemental analysis, and the crystal structure of N-n-butyl-4-[N’,N’-bis(2`,4`-dichlorobenzoyl)ethylamino]-1,8-naphthalimide was determined. The π-π stacking interactions and hydrogen bonds between the two molecular core planes (naphthalimide ring) and the van der Waals forces between the flexible n-butyl groups resulted in a 3D long-chain structure. The UV-vis and fluorescence properties of the title compounds were investigated. The results indicated that the monosubstituted 1,8-naphthalimide derivatives bearing an electron-donating group on the benzene ring or a structure with a larger conjugative effect exhibited enhanced fluorescence properties.

Substituent enhanced fluorescence properties of star α-cyanostilbenes and their application in bioimaging

2019 ◽  
Vol 7 (39) ◽  
pp. 6010-6023 ◽  
Author(s):  
A. Gopinath ◽  
N. Manivannan ◽  
Sudip Mandal ◽  
N. Mathivanan ◽  
A. Sultan Nasar
Keyword(s):  
Cell Imaging ◽  
Fluorescence Properties ◽  
Imaging Studies ◽  
Nuclear Movement ◽  
Enhanced Fluorescence

In this paper, we report the fluorescence properties of new star α-cyanostilbene molecules. Fungus cell imaging studies using one of the molecules allowed observing nuclear movement in the live mycelium.

scholarly journals Enhancing the photostability of poly(phenylene ethynylene) for single particle studies

2017 ◽  
Vol 16 (12) ◽  
pp. 1821-1831 ◽  
Author(s):  
C. F. Calver ◽  
B. A. Lago ◽  
K. S. Schanze ◽  
G. Cosa
Keyword(s):  
Fluorescence Imaging ◽  
Single Molecule ◽  
Single Particle ◽  
Phenylene Ethynylene ◽  
Conjugated Polyelectrolytes ◽  
Imaging Studies ◽  
Single Molecule Fluorescence ◽  
Enhanced Photostability ◽  
The Way

Enhanced photostability of conjugated polyelectrolytes achieved by using anti-fading agents opens the way for advanced single molecule fluorescence imaging studies.

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