A hemicyanine-based fluorescent probe for hydrazine detection in aqueous solution and its application in real time bioimaging of hydrazine as a metabolite in mice

2019 ◽  
Vol 7 (20) ◽  
pp. 3197-3200 ◽  
Author(s):  
Tao Li ◽  
Jian Liu ◽  
Linjiang Song ◽  
Zicheng Li ◽  
Qingrong Qi ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Real Time ◽  
Fluorescent Probe

A fluorescent probe, Hcy-Ac, was developed for the monitoring of in situ hydrazine release during the metabolism of isoniazid.

In Situ pH Measurement in Partly Frozen Aqueous Solution Using the Fluorescent Probe 8-Hydroxypyrene-1,3,6-Trisulfonic Acid

2008 ◽  
Vol 3 (1) ◽  
pp. 94-99 ◽  
Author(s):  
Vibeke Orlien ◽  
Anna K. Happe ◽  
Henrik Stapelfeldt ◽  
Leif H. Skibsted
Keyword(s):  
Aqueous Solution ◽  
Fluorescent Probe ◽  
Ph Measurement

In Situ, Real-Time FT-IR/CIR/ATR Study of the Biocorrosion of Copper by Gum Arabic, Alginic Acid, Bacterial Culture Supernatant and Pseudomonas atlantica Exopolymer

1989 ◽  
Vol 43 (6) ◽  
pp. 1062-1067 ◽  
Author(s):  
John G. Jolley ◽  
Gill G. Geesey ◽  
Michael R. Hankins ◽  
Randy B. Wright ◽  
Paul L. Wichlacz
Keyword(s):  
Aqueous Solution ◽  
Real Time ◽  
Culture Supernatant ◽  
Bacterial Culture ◽  
Alginic Acid ◽  
Gum Arabic ◽  
Bacterial Culture Supernatant ◽  
Ft Ir ◽  
Simulated Seawater

Thin films (2.0 nm) of copper on germanium internal reflection elements (IREs) were exposed to 10% gum arabic (aqueous solution), 2% alginic acid (aqueous solution), 1% bacterial culture supernatant (BCS, simulated seawater solution), and 0.5% Pseudomonas atlantica exopolymer (simulated seawater solution) and monitored in situ, real time, with the use of Fourier transform infrared/cylindrical internal reflection/attenuated total reflection spectroscopy as a function of time at ambient conditions. Ancillary graphite furnace atomic absorption spectroscopy was used to monitor the removal process of the copper thin film from the germanium IREs. Results indicate that some of the copper was removed from the Cu/Ge interface by all four polymers and incorporated into the polymer matrix. Thus, biocorrosion of copper was exhibited by the four polymers in the order of alginic acid < gum arabic < BCS > Pseudomonas atlantica exopolymer. The FT-IR/CIR/ATR technique can be successfully used to monitor biocorrosion systems in in situ, real-time settings.

Highly Sensitive Naphthalene-Based Two-Photon Fluorescent Probe for in Situ Real-Time Bioimaging of Ultratrace Cyclooxygenase-2 in Living Biosystems

2014 ◽  
Vol 86 (18) ◽  
pp. 9131-9138 ◽  
Author(s):  
Hua Zhang ◽  
Jiangli Fan ◽  
Kui Wang ◽  
Jing Li ◽  
Caixia Wang ◽  
...  
Keyword(s):  
Real Time ◽  
Fluorescent Probe ◽  
Cyclooxygenase 2 ◽  
Two Photon ◽  
Highly Sensitive

scholarly journals Selective and Sensitive Detection of Cyanide Based on the Displacement Strategy Using a Water-Soluble Fluorescent Probe

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Ming La ◽  
Yuanqiang Hao ◽  
Zhaoyang Wang ◽  
Guo-Cheng Han ◽  
Lingbo Qu
Keyword(s):  
Aqueous Solution ◽  
Fluorescent Probe ◽  
Limit Of Detection ◽  
Aqueous Media ◽  
Water Soluble ◽  
World Health ◽  
Selective Detection ◽  
Highly Sensitive ◽  
Health Organization

A water-soluble fluorescent probe (C-GGH) was used for the highly sensitive and selective detection of cyanide (CN−) in aqueous media based on the displacement strategy. Due to the presence of the recognition unit GGH (Gly-Gly-His), the probeC-GGH can coordinate with Cu2+and consequently display ON-OFF type fluorescence response. Furthermore, thein situformed nonfluorescentC-GGH-Cu2+complex can act as an effective OFF-ON type fluorescent probe for sensing CN−anion. Due to the strong binding affinity of CN−to Cu2+, CN−can extract Cu2+fromC-GGH-Cu2+complex, leading to the release ofC-GGH and the recovery of fluorescent emission of the system. The probeC-GGH-Cu2+allowed detection of CN−in aqueous solution with a LOD (limit of detection) of 0.017 μmol/L which is much lower than the maximum contaminant level (1.9 μmol/L) for CN−in drinking water set by the WHO (World Health Organization). The probe also displayed excellent specificity for CN−towards other anions, including F−, Cl−, Br−, I−, SCN−,PO43-,N3-,NO3-, AcO−,SO42-, andCO32-.

A real-time colorimetric and ratiometric fluorescent probe for rapid detection of SO2 derivatives in living cells based on a near-infrared benzopyrylium dye

RSC Advances ◽  
2015 ◽  
Vol 5 (32) ◽  
pp. 25409-25415 ◽  
Author(s):  
Wenqiang Chen ◽  
Xingjiang Liu ◽  
Song Chen ◽  
Xiangzhi Song ◽  
Jian Kang
Keyword(s):  
Aqueous Solution ◽  
Real Time ◽  
Fluorescent Probe ◽  
Rapid Detection ◽  
Near Infrared ◽  
Living Cells ◽  
Selective Detection ◽  
Ratiometric Fluorescent Probe

Near-infrared benzopyrylium dye was employed as a fast-responding ratiometric fluorescent probe for sensitive and selective detection of SO2 derivatives in 100% aqueous solution as well as in living cells.

Real-time in-situ quantification of protein secondary structures in aqueous solution based on ATR-FTIR subtraction spectrum

2021 ◽  
Vol 176 ◽  
pp. 108225
Author(s):  
Juan Zhao ◽  
Jing-Kang Cui ◽  
Rui-Xue Chen ◽  
Zi-Zhuo Tang ◽  
Zhi-Lei Tan ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Real Time ◽  
Secondary Structures ◽  
Protein Secondary Structures

Making pyrophosphate visible: the first precipitable and real-time fluorescent sensor for pyrophosphate in aqueous solution

The Analyst ◽  
2015 ◽  
Vol 140 (1) ◽  
pp. 174-181 ◽  
Author(s):  
Shu-Yan Jiao ◽  
Kun Li ◽  
Xin Wang ◽  
Zeng Huang ◽  
Lin Pu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Detection Limit ◽  
Real Time ◽  
Fluorescent Sensor ◽  
Living Cells

An in situ generated Zn2+ complex of di-2-(picoly) amine BINOL–DPA was presented as a precipitable and real-time fluorescent sensor for PPi with a detection limit of 95 nm, and it could be successfully applied in imaging PPi in living cells.

Probing the Dynamic Self-Assembly Behaviour of Photoswitchable Wormlike Micelles in Real Time

2018 ◽  
Author(s):  
Elaine A. Kelly ◽  
Judith E. Houston ◽  
Rachel Evans
Keyword(s):  
Real Time ◽  
Absorption Spectroscopy ◽  
Self Assembly ◽  
Uv Light ◽  
Wormlike Micelles ◽  
Tetraethylene Glycol ◽  
Light Illumination ◽  
First Time ◽  
Dependent Processes

Understanding the dynamic self-assembly behaviour of azobenzene photosurfactants (AzoPS) is crucial to advance their use in controlled release applications such as<i></i>drug delivery and micellar catalysis. Currently, their behaviour in the equilibrium <i>cis-</i>and <i>trans</i>-photostationary states is more widely understood than during the photoisomerisation process itself. Here, we investigate the time-dependent self-assembly of the different photoisomers of a model neutral AzoPS, <a>tetraethylene glycol mono(4′,4-octyloxy,octyl-azobenzene) </a>(C<sub>8</sub>AzoOC<sub>8</sub>E<sub>4</sub>) using small-angle neutron scattering (SANS). We show that the incorporation of <i>in-situ</i>UV-Vis absorption spectroscopy with SANS allows the scattering profile, and hence micelle shape, to be correlated with the extent of photoisomerisation in real-time. It was observed that C<sub>8</sub>AzoOC<sub>8</sub>E<sub>4</sub>could switch between wormlike micelles (<i>trans</i>native state) and fractal aggregates (under UV light), with changes in the self-assembled structure arising concurrently with changes in the absorption spectrum. Wormlike micelles could be recovered within 60 seconds of blue light illumination. To the best of our knowledge, this is the first time the degree of AzoPS photoisomerisation has been tracked <i>in</i><i>-situ</i>through combined UV-Vis absorption spectroscopy-SANS measurements. This technique could be widely used to gain mechanistic and kinetic insights into light-dependent processes that are reliant on self-assembly.

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