A biomimetic cerium-based biosensor for the direct visual detection of phosphate under physiological conditions

2019 ◽  
Author(s):  
Thibaud Rossel ◽  
Marc Creus
Keyword(s):  
Visual Detection ◽  
Detection System ◽  
Physiological Conditions ◽  
Naked Eye ◽  
Neutral Ph ◽  
Phosphate Ions ◽  
Homoleptic Complex ◽  
Displacement Assay

<div><div><div><p> </p><p>An indicator displacement assay (IDA) was used to probe phosphate ions in acqueous medium at neutral pH using a dinuclear cerium based complex [Ce<sub>2</sub>(HXTA)]3+. The homoleptic complex can be used to detect phosphate ions in micromolar concentrations either spectrophotometrically or with the naked-eye. To our knowledge, this is the biomimetic detection system with the highest affinity known to date for selective, naked-eye based phosphate recognition under physiological conditions.</p> </div></div></div>

scholarly journals A biomimetic cerium-based biosensor for the direct visual detection of phosphate under physiological conditions

2019 ◽  
Author(s):  
Thibaud Rossel ◽  
Marc Creus
Keyword(s):  
Visual Detection ◽  
Detection System ◽  
Physiological Conditions ◽  
Naked Eye ◽  
Neutral Ph ◽  
Phosphate Ions ◽  
Homoleptic Complex ◽  
Displacement Assay

<div><div><div><p> </p><p>An indicator displacement assay (IDA) was used to probe phosphate ions in acqueous medium at neutral pH using a dinuclear cerium based complex [Ce<sub>2</sub>(HXTA)]3+. The homoleptic complex can be used to detect phosphate ions in micromolar concentrations either spectrophotometrically or with the naked-eye. To our knowledge, this is the biomimetic detection system with the highest affinity known to date for selective, naked-eye based phosphate recognition under physiological conditions.</p> </div></div></div>

scholarly journals A biomimetic cerium-based biosensor for the direct visual detection of phosphate under physiological conditions

2019 ◽  
Vol 55 (99) ◽  
pp. 14894-14897
Author(s):  
Thibaud Rossel ◽  
Marc Creus
Keyword(s):  
Aqueous Medium ◽  
Visual Detection ◽  
Physiological Conditions ◽  
Neutral Ph ◽  
Phosphate Ions ◽  
Displacement Assay

An indicator displacement assay (IDA) was used to probe phosphate ions in an aqueous medium at neutral pH using a dinuclear cerium based complex [Ce2(HXTA)]3+.

scholarly journals A remarkable fluorescent cerium-based chemosensor for selective phosphate detection in aquaeous medium

2020 ◽  
Author(s):  
Thibaud Rossel
Keyword(s):  
Aqueous Medium ◽  
Chemical Properties ◽  
Cerium Ammonium Nitrate ◽  
Naked Eye ◽  
High Affinity ◽  
Phosphate Ions ◽  
Homoleptic Complex ◽  
Displacement Assay ◽  
Phosphate Detection ◽  
Naked Eye Detection

<p>Phosphates anions are important molecules for the society in general and involved for example in medicine or agriculture. Detection of them with chemosensor is a challenge due to the chemical properties of the anions. In this context, an exquisite chemosensor would have exquisite affinity, selectivity and low detection limit. Here we address this problem using a simple fluorescent indicator displacement assay (FID) with only commercially available chemicals used to probe phosphate ions in aqueous medium using cerium ammonium nitrate (CAN). The monomeric homoleptic complex detects phosphate ions in low millimolar concentrations either spectrophotometrically or with the naked-eye with high selectivity over other anions and high affinity. To our knowledge, this is the first description of a simple sensitive, selective and high affinity cerium-based chemosensor for the fluorescent selective naked-eye detection of phosphate in aqueous medium. It proved useful for the detection of phosphate in Coca Cola. </p>

scholarly journals A naked-eye [Ce2(HXTA)]3+ based biosensor for the detection of phosphate ions in Water

2018 ◽  
Author(s):  
Thibaud Rossel ◽  
Marc Creus
Keyword(s):  
Naked Eye ◽  
Phosphate Ions ◽  
Homoleptic Complex ◽  
Displacement Assay

<div><div><div><p>An indicator displacement assay (IDA) was used to probe phosphate ions in water using a dinuclear cerium based complex [Ce<sub>2</sub>(HXTA)]<sup>3+</sup>. The homoleptic complex is able to detect phosphates ions in micromolar concentrations both spectrophotometrically and with the naked-eye</p></div></div></div>

scholarly journals An astonishing simple cerium-based chemosensor for fluorescent selective phosphate detection in aquaeous medium

2020 ◽  
Author(s):  
Thibaud Rossel
Keyword(s):  
High Selectivity ◽  
Chemical Properties ◽  
Cerium Ammonium Nitrate ◽  
Naked Eye ◽  
The Past ◽  
Phosphate Ions ◽  
Cerium Ammonium ◽  
Displacement Assay ◽  
Phosphate Detection ◽  
Naked Eye Detection

<div><div><div><p>Phosphate ions are socially important chemicals. They are involved in crucial processes such as for example in medicine or agriculture. However, their sensing with a chemosensor is ardous due to their chemical properties. In this context, a remarkable chemosensor would reveal an outstanding affinity, a high selectivity and a low detection limit in favor of an analyte. This has long been addressed in the past by chemists in synthesizing com- plex chemical architectures as receptors but with questionable successes. Astonishingly, here, for phosphate detection, we address this problem profiting by a simple fluorescent indicator displacement assay (FID) with only commercially available chemicals. We used cerium ammonium nitrate (CAN) combined with a fluorophore to probe phosphate ions in aqueous mediums. The inorganic complex detects phosphate ions in low millimolar concentrations either spectrophotometrically or with the naked-eye with high selectivity and affinity over other anions. To our knowledge, this is the first description of a simple sensitive, selective and high affinity cerium-based chemosensor for the fluorescent selective naked-eye detection of phosphate in aqueous medium. It proved useful for the detection of phosphate in Coca-Cola©.</p></div></div></div>

scholarly journals An astonishing simple cerium-based chemosensor for fluorescent selective phosphate detection in aquaeous medium

2021 ◽  
Author(s):  
Thibaud Rossel
Keyword(s):  
High Selectivity ◽  
Chemical Properties ◽  
Cerium Ammonium Nitrate ◽  
Naked Eye ◽  
The Past ◽  
Phosphate Ions ◽  
Cerium Ammonium ◽  
Displacement Assay ◽  
Phosphate Detection ◽  
Naked Eye Detection

<div><div><div><p>Phosphate ions are socially important chemicals. They are involved in crucial processes such as for example in medicine or agriculture. However, their sensing with a chemosensor is ardous due to their chemical properties. In this context, a remarkable chemosensor would reveal an outstanding affinity, a high selectivity and a low detection limit in favor of an analyte. This has long been addressed in the past by chemists in synthesizing com- plex chemical architectures as receptors but with questionable successes. Astonishingly, here, for phosphate detection, we address this problem profiting by a simple fluorescent indicator displacement assay (FID) with only commercially available chemicals. We used cerium ammonium nitrate (CAN) combined with a fluorophore to probe phosphate ions in aqueous mediums. The inorganic complex detects phosphate ions in low millimolar concentrations either spectrophotometrically or with the naked-eye with high selectivity and affinity over other anions. To our knowledge, this is the first description of a simple sensitive, selective and high affinity cerium-based chemosensor for the fluorescent selective naked-eye detection of phosphate in aqueous medium. It proved useful for the detection of phosphate in Coca-Cola©.</p></div></div></div>

scholarly journals An astonishing simple cerium-based chemosensor for fluorescent selective phosphate detection in aquaeous medium

2020 ◽  
Author(s):  
Thibaud Rossel
Keyword(s):  
High Selectivity ◽  
Chemical Properties ◽  
Cerium Ammonium Nitrate ◽  
Naked Eye ◽  
The Past ◽  
Phosphate Ions ◽  
Cerium Ammonium ◽  
Displacement Assay ◽  
Phosphate Detection ◽  
Naked Eye Detection

<div><div><div><p>Phosphate ions are socially important chemicals. They are involved in crucial processes such as for example in medicine or agriculture. However, their sensing with a chemosensor is ardous due to their chemical properties. In this context, a remarkable chemosensor would reveal an outstanding affinity, a high selectivity and a low detection limit in favor of an analyte. This has long been addressed in the past by chemists in synthesizing com- plex chemical architectures as receptors but with questionable successes. Astonishingly, here, for phosphate detection, we address this problem profiting by a simple fluorescent indicator displacement assay (FID) with only commercially available chemicals. We used cerium ammonium nitrate (CAN) combined with a fluorophore to probe phosphate ions in aqueous mediums. The inorganic complex detects phosphate ions in low millimolar concentrations either spectrophotometrically or with the naked-eye with high selectivity and affinity over other anions. To our knowledge, this is the first description of a simple sensitive, selective and high affinity cerium-based chemosensor for the fluorescent selective naked-eye detection of phosphate in aqueous medium. It proved useful for the detection of phosphate in Coca-Cola©.</p></div></div></div>

An ultra-sensitive colorimetric assay for reliable visual detection of telomerase activity

The Analyst ◽  
2017 ◽  
Vol 142 (17) ◽  
pp. 3235-3240 ◽  
Author(s):  
Yaocai Wang ◽  
Luzhu Yang ◽  
Yanjun Wang ◽  
Wei Liu ◽  
Baoxin Li ◽  
...  
Keyword(s):  
Hela Cell ◽  
Visual Detection ◽  
Colorimetric Assay ◽  
Telomerase Activity ◽  
Cell Lysates ◽  
Naked Eye ◽  
Vis Spectroscopy

We proposed a sensitive colorimetric assay for detecting telomerase activity. The telomerase activity of 5 and 20 HeLa cell lysates can be detected via UV-vis spectroscopy and the naked eye, respectively.

The Error Analysis about Gauge Visual Detection System between High Signals and Contact Net

2012 ◽  
Vol 522 ◽  
pp. 347-350
Author(s):  
Xi Lin Zhu ◽  
Yong Yu ◽  
Qiang Wei ◽  
Xiang Zou ◽  
Chen Jun Huang
Keyword(s):  
Image Processing ◽  
Error Analysis ◽  
System Design ◽  
Visual Detection ◽  
Imaging System ◽  
Detection System ◽  
Systematic Errors ◽  
Lighting Conditions ◽  
Specific Impact

t is need to experiment to verify the correctness and validity of various stages in system design after gauge visual detection system designing between high signals and contact net. Then it does error analysis from lighting conditions, camera resolution, binocular imaging system installation structure, camera out of synchronized, noise and subsequent image processing operations, etc. It analysis the systematic errors principle and specific impact, then identifies specific improvements.

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