Pyrene-based monomer-excimer dual response organosilicon polymer for selective detection of 2,4,6-trinitrotoluene (TNT) and 2,4,6-trinitrophenol (TNP)

2022 ◽  
Author(s):  
Zhiming Gou ◽  
Aijing Wang ◽  
Minggang Tian ◽  
Yujing Zuo
Keyword(s):  
Distinct Difference ◽  
Fluorescence Probes ◽  
Selective Detection ◽  
Excimer Emission ◽  
Strong Emission ◽  
Organosilicon Polymer ◽  
Dual Response ◽  
Emission Change

The formation or destruction of pyrene excimer with strong emission change make it a versatile fluorophore to construct excimer emission-based fluorescence probes for various analytes detection. The distinct difference between...

Construction of salicylaldehyde analogues as turn-on fluorescence probes and their electronic effect on sensitive and selective detection of As(v) in groundwater

2019 ◽  
Vol 11 (7) ◽  
pp. 955-964 ◽  
Author(s):  
Lina Wang ◽  
Yong Li ◽  
Xike Tian ◽  
Chao Yang ◽  
Liqiang Lu ◽  
...  
Keyword(s):  
Public Health ◽  
Electronic Effect ◽  
Environmental Problem ◽  
Arsenic Contamination ◽  
Fluorescence Probes ◽  
Selective Detection ◽  
Turn On

Arsenic contamination in groundwater is a severe and major environmental problem that endangers public health.

Tunable and selective detection of cancer cells using a betainized zwitterionic polymer with BODIPY and graphene oxide

2014 ◽  
Vol 38 (6) ◽  
pp. 2225-2228 ◽  
Author(s):  
So Yeong Lee ◽  
Sung Han Kim ◽  
Sung Min Kim ◽  
Hyukjin Lee ◽  
Gibaek Lee ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Cancer Cells ◽  
Reduced Graphene Oxide ◽  
Fluorescence Probes ◽  
Fluorescent Nanoparticles ◽  
Selective Detection ◽  
Reduced Graphene ◽  
Diagnosis Of Cancer ◽  
Zwitterionic Polymer ◽  
Effective Diagnosis

Novel fluorescence probes, reduced graphene oxide (rGO) containing zwitterionic fluorescent nanoparticles, for effective diagnosis of cancer cells.

Coumarin-based turn-on fluorescence probes for highly selective detection of Pi in cell culture and Caenorhabditis elegans

2015 ◽  
Vol 120 ◽  
pp. 293-298 ◽  
Author(s):  
Huan Wang ◽  
Lin E. Guo ◽  
Xue Mei Li ◽  
Li Mei Zhang ◽  
Qiu Lin Xu ◽  
...  
Keyword(s):  
Cell Culture ◽  
Caenorhabditis Elegans ◽  
Fluorescence Probes ◽  
Selective Detection ◽  
Turn On

scholarly journals A dual-response BODIPY-based fluorescent probe for the discrimination of glutathione from cystein and homocystein

2015 ◽  
Vol 6 (4) ◽  
pp. 2584-2589 ◽  
Author(s):  
Feiyi Wang ◽  
Li Zhou ◽  
Chunchang Zhao ◽  
Rui Wang ◽  
Qiang Fei ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Cascade Reactions ◽  
Selective Detection ◽  
Dual Response

By employing a dual response approach, distinguishable fluorescence signals are initiated by GSH-mediated and Cys/Hcy-induced cascade reactions, thus allowing selective detection.

scholarly journals Emission lifetime study of fluorescence probes based on G-quadruplex oligonucleotides end-labeled with pyrene moieties

2010 ◽  
Vol 24 (3-4) ◽  
pp. 325-331 ◽  
Author(s):  
A. Cupane ◽  
A. Dembska ◽  
T. Pedzinski ◽  
S. Takenaka ◽  
B. Juskowiak
Keyword(s):  
Electron Transfer ◽  
Excited State ◽  
Relative Orientation ◽  
Fluorescence Probes ◽  
Excimer Emission ◽  
Emission Lifetime ◽  
G Quadruplex ◽  
Human Telomere ◽  
Photophysical Processes ◽  
Adenine Thymine

Fluorescence lifetime study of two probes abbreviated as Py-Htelom-Py and Py-TBA-Py, carrying pyrene moieties at both termini and sequences of Human telomere and Thrombin Binding Aptamer, respectively are reported. The effect of potassium ion on the photophysical processes was examined in order to elucidate factors that facilitate the production of excimer emission. Emission kinetics data indicated that the relative orientation of pyrene and neighboring nucleobase (guanine, adenine, thymine) plays a crucial role in determining both the rate of electron-transfer quenching of pyrene excited state and the efficiency of excimer emission.

scholarly journals Protonation and electrostatic interactions based fluorescence probes for selective detection of picric acid (2,4,6-trinitrophenol)-An explosive material

2021 ◽  
Author(s):  
sukhvinder dhiman ◽  
Nancy Singla ◽  
Manzoor Ahmad ◽  
Prabhpreet Singh ◽  
Subodh Kumar
Keyword(s):  
Fluorescent Probes ◽  
Electrostatic Interactions ◽  
Picric Acid ◽  
Fluorescence Probes ◽  
Selective Detection ◽  
Explosive Material ◽  
Physico Chemical ◽  
Pka Value ◽  
Nitro Aromatic

Abstract. The picric acid due to its low pKa value possesses distinct physico-chemical features among all other nitro aromatic derivatives to design fluorescent probes for its’ sensitive and selective detection.The...

A dual response fluorescent sensor for HNO and S2−ions using a Cu(ii) complex based probe assisted by detailed DFT studies

2018 ◽  
Vol 47 (33) ◽  
pp. 11563-11571 ◽  
Author(s):  
Ananya Dutta ◽  
Rabiul Alam ◽  
Abu Saleh Musha Islam ◽  
Arpan Dutta ◽  
Mahammad Ali
Keyword(s):  
Fluorescent Sensor ◽  
Selective Detection ◽  
Dft Studies ◽  
Dual Response

A Cu(ii) based sensor for selective detection of HNO and S2−with detailed DFT studies is reported here.

scholarly journals Self-Assembled Triphenylphosphonium-Conjugated Dicyanostilbene Nanoparticles and Their Fluorescence Probes for Reactive Oxygen Species

Nanomaterials ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 1034
Author(s):  
Wonjin Choi ◽  
Na Lim ◽  
Heekyoung Choi ◽  
Moo Seo ◽  
Junho Ahn ◽  
...  
Keyword(s):  
Fluorescence Probes ◽  
Guest Molecules ◽  
Structural Conversion ◽  
Strong Emission ◽  
New Approach ◽  
Turn On ◽  
Emission Enhancement ◽  
Spherical Structures ◽  
Self Assembled ◽  
Fluorescence Turn On

We report self-assembled novel triphenylphosphonium-conjugated dicyanostilbene-based as selective fluorescence turn-on probes for 1O2 and ClO−. Mono- or di-triphenylphosphonium-conjugated dicyanostilbene derivatives 1 and 2 formed spherical structures with diameters of ca. 27 and 56.5 nm, respectively, through π-π interaction between dicyanostilbene groups. Self-assembled 1 showed strong fluorescent emission upon the addition of 1O2 and ClO− compared to other ROS (O2−, •OH, NO, TBHP, H2O2, GSH), metal ions (K+, Na+), and amino acids (cysteine and histidine). Upon addition of 1O2 and ClO−, the spherical structure of 1 changed to a fiber structure (8-nm wide; 300-nm long). Upon addition of 1O2 and ClO−, the chemical structural conversion of 1 was determined by FAB-Mass, NMR, IR and Zeta potential analysis, and the strong emission of the self-assembled 1 was due to an aggregation-induced emission enhancement. This self-assembled material was the first for selective ROS as a fluorescence turn-on probe. Thus, a nanostructure change-derived turn-on sensing strategy for 1O2 or ClO− may offer a new approach to developing methods for specific guest molecules in biological and environmental subjects.

Green preparation of fluorescent carbon dots from lychee seeds and their application for the selective detection of methylene blue and imaging in living cells

2015 ◽  
Vol 3 (33) ◽  
pp. 6783-6789 ◽  
Author(s):  
Mingyue Xue ◽  
Mengbing Zou ◽  
Jingjin Zhao ◽  
Zhihua Zhan ◽  
Shulin Zhao
Keyword(s):  
Methylene Blue ◽  
Carbon Dots ◽  
Living Cells ◽  
Fluorescence Probes ◽  
Selective Detection ◽  
Green Approach ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

A green approach was developed for the preparation of fluorescent carbon dots (CDs) by using lychee seeds as precursors, and the CDs were employed as fluorescence probes for the detection of methylene blue and imaging in living cells.

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