scholarly journals Tailoring an HSO4− anion hybrid receptor based on a phenazine derivative

2020 ◽  
Vol 19 (10) ◽  
pp. 1373-1381
Author(s):  
Xiao-Ni Qi ◽  
Hong-Qiang Dong ◽  
Hai-Long Yang ◽  
Wen-Juan Qu ◽  
You-Ming Zhang ◽  
...  
Keyword(s):  
Fluorescence Response ◽  
Phenazine Derivative

A hybrid PD-based receptor was tailored for capturing HSO4− anions. It could display not only a preferable sensitivity with a “turn–off” fluorescence response, but also a strong anti-interference toward other common anions.

A Boronic Acid-Based Fluorescence Hydrogel for Monosaccharide Detection

2018 ◽  
Author(s):  
Suying Xu ◽  
Adam Sedgwick ◽  
Souad Elfecky ◽  
Wenbo Chen ◽  
Ashley Jones ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Boronic Acid ◽  
Binding Constants ◽  
Strong Fluorescence ◽  
Fluorescence Response ◽  
Turn On ◽  
Fluorescence Turn On ◽  
Hydrogel System

<p>A boronic acid-based anthracene fluorescent probe was functionalised with an acrylamide unit to incorporate into a hydrogel system for monosaccharide detection<i>. </i>In solution, the fluorescent probe<b> </b>displayed a strong fluorescence turn-on response upon exposure to fructose, and an expected trend in apparent binding constants, as judged by a fluorescence response where D-fructose > D-galactose > D-mannose > D-glucose. The hydrogel incorporating the boronic acid monomer demonstrated the ability to detect monosaccharides by fluorescence with the same overall trend as the monomer in solution with the addition of fructose resulting in a 10-fold enhancement (≤ 0.25 M). <b><u></u></b></p>

Identification of a Novel Bioactive Phenazine Derivative and Regulation of phoP on Its Production in Streptomyces lomondensis S015

2021 ◽  
Vol 69 (3) ◽  
pp. 974-981
Author(s):  
Ru-Xiang Deng ◽  
Zhuo Zhang ◽  
Hui-Ling Li ◽  
Wei Wang ◽  
Hong-Bo Hu ◽  
...  
Keyword(s):  
Phenazine Derivative

scholarly journals Single-stranded DNA probe paired aptasensor with extra dye binding sites to enhance its fluorescence response in the presence of a target compound

RSC Advances ◽  
2021 ◽  
Vol 11 (35) ◽  
pp. 21796-21804
Author(s):  
Seo Won Cho ◽  
Hyun Jeong Lim ◽  
Beelee Chua ◽  
Ahjeong Son
Keyword(s):  
Binding Sites ◽  
Dna Probe ◽  
Target Compound ◽  
Single Stranded Dna ◽  
Fluorescence Response ◽  
Dye Binding

Principle of an ssDNA paired aptasensor where extra dye binding sites are created to enhance its fluorescence response.

How switching the substituent of a pyrene derivative from a methyl to a butyl affects the fluorescence response of polystyrene randomly labeled with pyrene

2010 ◽  
Vol 88 (3) ◽  
pp. 217-227 ◽  
Author(s):  
Mark Ingratta ◽  
Manoj Mathew ◽  
Jean Duhamel
Keyword(s):  
Organic Solvents ◽  
Excellent Agreement ◽  
Fluorescence Spectra ◽  
Series Solutions ◽  
Specific Nature ◽  
Polymer Backbone ◽  
Excimer Fluorescence ◽  
Fluorescence Response ◽  
Different Types ◽  
Blob Model

A series of polystyrenes randomly labeled with 1-pyrenebutanol were prepared by copolymerizing styrene and 1-pyrenebutylacrylate yielding the CoBuE–PS series. Solutions of CoBuE–PS were prepared in nine organic solvents having viscosities ranging from 0.36 to 5.5 mPa·s and the fluorescence spectra and pyrene monomer and excimer fluorescence decays were acquired. Analysis of the fluorescence spectra yielded the IE/IM ratio, whereas analysis of the fluorescence decays with the fluorescence blob model (FBM) yielded the parameters N blobo , <kblob × Nblob> , and k blobo . These parameters were compared to those obtained with two other series of pyrene-labeled polystyrenes, which had been studied earlier, namely CoA–PS and CoE–PS where pyrene was attached to the polymer backbone via a methylamide and benzyl methylether linker, respectively. Although the parameters IE/IM, N blobo , <kblob × Nblob>, and k blobo took different values according to the specific nature of the linker connecting pyrene to the polystyrene backbone, they exhibited trends that were quite similar for all the pyrene-labeled polystyrene constructs. The excellent agreement between the parameters retrieved for the three different types of pyrene-labeled polystyrenes suggests that the FBM accounts satisfyingly for differences in the nature of the label used, while still retrieving information pertinent to the polymer of interest.

Fluorescent zinc and copper complexes for detection of adrafinil in paper-based microfluidic devices

2016 ◽  
Vol 52 (53) ◽  
pp. 8279-8282 ◽  
Author(s):  
Mehmet Gokhan Caglayan ◽  
Sara Sheykhi ◽  
Lorenzo Mosca ◽  
Pavel Anzenbacher
Keyword(s):  
Copper Complexes ◽  
Microfluidic Devices ◽  
Fluorescence Response

Zn(ii) and Cu(ii) complexes are used in the recognition and sensing of adrafinil through an easy-to-detect fluorescence response.

Competitive binding for triggering a fluorescence response in a hydrazodicarboxamide-based [2]rotaxane

2014 ◽  
Vol 12 (3) ◽  
pp. 474-478 ◽  
Author(s):  
José Berná ◽  
Carlos Franco-Pujante ◽  
Mateo Alajarín
Keyword(s):  
Competitive Binding ◽  
Fluorescence Response

2,3,9-Trihydroxyphenazin-l-carbonsäure – ein unter Berylliumeinwirkung gebildetes neues Phenazinderivat aus Pseudomonas fluorescens [1] / 2,3,9-Trihydroxyphenazine- l -carboxylic Acid — a New Phenazine Derivative from Pseudomonas fluorescens Grown under Beryllium Stress [1]

1990 ◽  
Vol 45 (4) ◽  
pp. 552-556 ◽  
Author(s):  
K. Taraz ◽  
E. M. Schaffner ◽  
H. Budzikiewicz ◽  
H. Korth ◽  
G. Pulverer
Keyword(s):  
Carboxylic Acid ◽  
Iron Deficiency ◽  
Dicarboxylic Acid ◽  
Pseudomonas Fluorescens ◽  
Structure Elucidation ◽  
Culture Medium ◽  
Phenazine Derivative

In addition to phenazine, phenazine-1-carboxylic acid, phenazine-1,6-dicarboxylic acid and 2,9-dihydroxyphenazine-1-carboxylic acid a new compound, viz. 2,3,9-trihydroxyphenazine-1-carboxylic acid could be isolated from the culture medium of Pseudomonas fluorescens grown under iron deficiency with beryllium added to the culture medium. Its structure elucidation is described.

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