Fabrication of novel chemosensors composed of rhodamine derivative for the detection of ferric ion and mechanism studies on the interaction between sensor and ferric ion

The Analyst ◽  
2015 ◽  
Vol 140 (4) ◽  
pp. 1306-1313 ◽  
Author(s):  
Dongjian Shi ◽  
Ming Ni ◽  
Jing Luo ◽  
Mitsuru Akashi ◽  
Xiaoya Liu ◽  
...  
Keyword(s):  
Metal Ions ◽  
Ferric Ion ◽  
Ferric Ions ◽  
Rhodamine Derivative ◽  
Rhodamine Derivatives

This paper presents the design and preparation of novel fluorescence chemosensors for detection ferric ions based on rhodamine derivatives, and studies on the recognition mechanisms and interaction between probes and metal ions.

scholarly journals Blue flower coloration of Corydalis ambigua requires ferric ion and kaempferol glycoside

2021 ◽  
Vol 85 (1) ◽  
pp. 61-68
Author(s):  
Kumi Yoshida ◽  
Takeya Oniduka ◽  
Kin-ichi Oyama ◽  
Tadao Kondo
Keyword(s):  
Emission Spectroscopy ◽  
Atomic Emission ◽  
Early Spring ◽  
Blue Flower ◽  
Ferric Ion ◽  
Ferric Ions ◽  
Kaempferol Glycoside ◽  
Cotton Effects ◽  
Blue Coloration ◽  
Exciton Type

Abstract Corydalis ambigua (Japanese name, Ezoengosaku) flowers bloom with blue to purplish petals in early spring in Hokkaido prefecture. In this study, a mechanism for blue petal coloration by ferric ions and keampferol glycoside was elucidated. Blue petals and cell sap exhibited similar visible (Vis) spectra, with λmax at approximately 600 nm and circular dichroism (CD) with positive exciton-type Cotton effects in the Vis region. Analysis of the organic components of the petals confirmed cyanidin 3-O-sambubioside and kaempferol 3-O-sambubioside as the major flavonoids. Mg, Al, and Fe were detected in petals using atomic emission spectroscopy. Color, Vis absorption, and CD consistent with those of blue petals were reproduced by mixing cyanidin 3-O-sambubioside, kaempferol 3-O-sambubioside, and Fe3+ in a buffered aqueous solution at pH 6.5. Both Fe3+ and flavonol were essential for blue coloration.

Reactions of ferrous and ferric ions with hydrogen peroxide. Part II.—The ferric ion reaction

1951 ◽  
Vol 47 (0) ◽  
pp. 591-616 ◽  
Author(s):  
W. G. Barb ◽  
J. H. Baxendale ◽  
P. George ◽  
K. R. Hargrave
Keyword(s):  
Hydrogen Peroxide ◽  
Ferric Ion ◽  
Ferric Ions

scholarly journals Divergent roles for ferric ions in the biological activity of amidated and non-amidated gastrins

2004 ◽  
Vol 181 (2) ◽  
pp. 315-325 ◽  
Author(s):  
J Pannequin ◽  
JP Tantiongco ◽  
S Kovac ◽  
A Shulkes ◽  
GS Baldwin
Keyword(s):  
Biological Activity ◽  
Inositol Phosphate ◽  
Peptide Hormone ◽  
Iron Chelator ◽  
Spectroscopic Studies ◽  
Jurkat Cells ◽  
Ferric Ion ◽  
Ferric Ions ◽  
Inositol Phosphate Production ◽  
Stimulation Of

Amidated forms of the peptide hormone gastrin act via the cholecystokinin-2 receptor to stimulate gastric acid secretion, whereas non-amidated forms stimulate colonic mucosal proliferation via a novel, as yet uncharacterised, receptor. Nuclear magnetic resonance (NMR) and fluorescence spectroscopic studies have revealed that glycine-extended gastrin17 bound two ferric ions, and that ferric ion binding was essential for biological activity. We have therefore investigated the role of ferric ions in the biological activity of amidated gastrin17. As with glycine-extended gastrin17, fluorescence quenching experiments indicated that Glu7 Ala and Glu8,9 Ala mutants of amidated gastrin17 each bound only one ferric ion. The affinity of the mutant peptides for the cholecystokinin-2 receptor on transfected COS-7 cells or on Tlymphoblastoid Jurkat cells, and their potency in stimulation of proliferation in Jurkat cells and inositol phosphate production in transfected COS-7 cells, were similar to the values obtained for amidated gastrin17. In addition, the iron chelator desferrioxamine did not significantly inhibit either binding of amidated gastrin17 to the cholecystokinin-2 receptor, or stimulation of inositol phosphate production by amidated gastrin17 in transfected COS-7 cells. We conclude that, in contrast to glycine-extended gastrin17, binding of ferric ions is not essential for the biological activity of amidated gastrin17. Our results support the concept of distinct modes of action for amidated and non-amidated gastrins, and raise the possibility of developing selective antagonists of the actions of non-amidated and amidated gastrins.

scholarly journals Unusual behavior of natural polyphosphates during IMAC

2013 ◽  
Vol 19 (No. 5) ◽  
pp. 161-165
Author(s):  
M. Kmínková ◽  
A. Prošková ◽  
J. Kučera
Keyword(s):  
Phytic Acid ◽  
Iron Content ◽  
Metal Ion ◽  
Ferric Ion ◽  
Ferric Ions ◽  
Unusual Behavior ◽  
Strong Bond ◽  
Hydrolysis Of ◽  
Chelating Groups ◽  
Metal Ion Affinity Chromatography

The atypical course of IDA-ferric (Imino-Di-Acetyl-agarose saturated with ferric ions) of two polyphosphorylated compounds – phytic acid and Ser(P)-Ser(P)-Ser(P)-Glu-Glu cluster obtained by the way of pancreatic hydrolysis of bovine casein was detected. The spectral data (for phytic acid) and iron content (for polyphosphate cluster) indicate the strong bond of ferric ions to these polyphosphorylated compounds. The data shows these compounds to bind ferric ion stronger even in comparison with IDA (Imino-Di-Acetate) itself. Therefore attention is to be paid to all IMAC (Immobilized-Metal-Ion-Affinity-Chromatography) of natural compounds containing strong chelating groups or several chelating groups in vicinity.

scholarly journals A rhodamine-based dual chemosensor for the naked-eye detection of Hg2+ and enhancement of the fluorescence emission for Fe3+

2020 ◽  
Vol 19 (12) ◽  
pp. 1690-1696
Author(s):  
Jian-Peng Hu ◽  
Hao-Hang Yang ◽  
Qi Lin ◽  
Hong Yao ◽  
You-Ming Zhang ◽  
...  
Keyword(s):  
Metal Ions ◽  
Fluorescence Emission ◽  
Eye Detection ◽  
Naked Eye ◽  
Rhodamine Derivative ◽  
Turn On ◽  
Trimesoyl Chloride ◽  
Naked Eye Detection

Herein, we synthesized a trimesoyl chloride–rhodamine derivative TR. TR exhibited metal ions complexation induced photophysical ‘turn-on’ signaling responses to Hg2+ and Fe3+.

scholarly journals Functionalization of orange waste with phosphoric group for Anion separation

2013 ◽  
Vol 29 ◽  
pp. 110-112
Author(s):  
Kedar Nath Ghimire
Keyword(s):  
Orange Juice ◽  
Chemical Society ◽  
Ferric Ion ◽  
Ferric Ions ◽  
X Ray ◽  
X Ray Crystallography ◽  
Orange Waste ◽  
Anion Separation ◽  
Very High ◽  
High Binding Affinity

A novel adsorbent, Phosphorylated Orange Juice Residue, POJR, has been investigated. The extent of phosphorylation was measured with the aid of fluorescence X-ray crystallography, which indicates that the degree of phosphorylation is 1.2. The POJR has very high binding affinity for ferric ion. Also bound ferric ions selectively adsorb anions like arsenite, arsenate, selenite, selenate, antimonate and phosphate.DOI: http://dx.doi.org/10.3126/jncs.v29i0.9275Journal of Nepal Chemical Society Vol. 29, 2012 Page: 110-112 Uploaded date: 12/6/2013 

Structure and phase behavior of poly(acrylic acid)–ferric ion complex aqueous solutions

Soft Matter ◽  
2020 ◽  
Vol 16 (47) ◽  
pp. 10750-10758
Author(s):  
Yingchun Han ◽  
Xinyue Zhao ◽  
Yonggang Liu ◽  
Yunqi Li ◽  
Quan Chen
Keyword(s):  
Acrylic Acid ◽  
Aqueous Solutions ◽  
Phase Behavior ◽  
Small Angle ◽  
Ferric Ion ◽  
Ferric Ions ◽  
Ph Measurements ◽  
X Ray ◽  
X Ray Scattering ◽  
Poly Acrylic Acid

In this study, we investigate the conformational evolution and phase behavior of poly(acrylic acid) (PAA) solution upon the introduction of ferric ions through combining of small angle X-ray scattering (SAXS), turbidity, ζ-potential and pH measurements.

scholarly journals Solvothermally Doping NiS2 Nanoparticles on Carbon with Ferric Ions for Efficient Oxygen Evolution Catalysis

Catalysts ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 458 ◽  
Author(s):  
Lihong Xie ◽  
Dengke Zhao ◽  
Jiale Dai ◽  
Zexing Wu ◽  
Ligui Li
Keyword(s):  
Oxygen Evolution ◽  
Active Sites ◽  
Carbon Matrix ◽  
Structural Defects ◽  
Ferric Ion ◽  
Ferric Ions ◽  
Initial Current ◽  
Widespread Application ◽  
Ion Doping ◽  
C 30

Exploring efficient non-precious metal based electrocatalysts for the oxygen evolution reaction (OER) is a prerequisite to implement the widespread application of a water electrolyzer and metal-air batteries. Herein, Fe-doped NiS2 nanoparticles on a carbon matrix (Fe-NiS2/C) are facilely prepared via a two-step solvothermal process, where Ni-containing metal organic frameworks (Ni-MOFs) are vulcanized in situ and carbonized by a solvothermal method to form abundant NiS2 nanoparticles homogeneously distributed on a carbon matrix (NiS2/C), followed by doping with ferric ions via a similar solvothermal treatment. The resulting Fe-NiS2/C nanoparticle composites show a rougher surface than the NiS2/C parent, likely due to the formation of more structural defects after ferric ion doping, which maximizes the exposure of active sites. Moreover, ferric ion doping can also regulate the surface electronic state to reduce the activation energy barrier for OER on NiS2/C sample. With these merits, the best sample Fe-NiS2/C-30 only requires a potential of +1.486 V (vs. RHE) to reach an OER current density of 10 mA cm−2 and can retain 96.85% of its initial current after continuous working for about 10 h in 1.0 M KOH aqueous solution, along with a small Tafel slope of 45.66 mV/dec, outperforming a commercial RuO2 catalyst. The results in this work enrich the method to tailor the catalytic activity of transition metal sulfides for electrochemical energy technologies.

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