Alkaline-earth and aminonicotinate based coordination polymers with combined fluorescence/long-lasting phosphorescence and metal ion sensing response

Pyridine-based gelators 1–4 of triazole-amide isosteric relationship have been considered in metal ion sensing, heavy metal and picric acid adsorption from water. The change from triazole to isosteric amide has marked effect on gelling properties of the gelators.

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FRET-based metal ion sensing by a crown-containing bisstyryl dye

New Journal of Chemistry ◽

10.1039/c8nj00205c ◽

2018 ◽

Vol 42 (10) ◽

pp. 7908-7913 ◽

Cited By ~ 6

Author(s):

M. A. Ustimova ◽

A. Yu. Lebedeva ◽

Yu. V. Fedorov ◽

D. V. Berdnikova ◽

O. A. Fedorova

Keyword(s):

Heavy Metal ◽

Metal Ion ◽

Alkaline Earth ◽

Metal Cations ◽

Heavy Metal Cations ◽

Ion Sensing ◽

Metal Ion Sensing

A ratiometric cation FRET system containing two binding centers demonstrates distinct fluorescence changes upon interaction with alkaline, alkaline earth and heavy metal cations.

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Pt(dithiolene)-Based Colorimetric Chemosensors for Multiple Metal-Ion Sensing

Sustainability ◽

10.3390/su13158160 ◽

2021 ◽

Vol 13 (15) ◽

pp. 8160

Author(s):

Heawon Son ◽

Seohyeon Jang ◽

Gayoung Lim ◽

Taeyong Kim ◽

Inho Nam ◽

...

Keyword(s):

Transition Metal ◽

Metal Ions ◽

Metal Ion ◽

Density Functional ◽

Low Cost ◽

Density Functional Theory Calculations ◽

Transition Metal Ions ◽

Field Analysis ◽

Ion Sensing ◽

Metal Ion Sensing

Colorimetric chemosensors are widely employed for in-field analysis to detect transition metal ions in real-time with the naked eye. Colorimetric chemosensors have attracted considerable attention because they can conveniently provide quantitative and qualitative information at a low cost. However, the development of colorimetric chemosensors for multiple-ion sensing where metal cations coexist has been limited. For this reason, we developed a new type of transition metal ion sensing material by selectively replacing functional groups on (diphosphine)Pt(dmit) molecules. The terminal groups of the diphosphine ligand were successfully substituted by the cyclohexyl groups, increasing the electron density of the thione moiety. Due to the electron donation ability of the cyclohexyl terminal groups, the proposed chemosensing material was able to selectively detect the mixture of Hg2+, Cu2+, and Ag+ in the presence of many types of interfering cations. To gain insight into the binding mechanisms between the metal ions and the developed (dchpe)Pt(dmit) molecule, density functional theory calculations were also performed.

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A single-step emulsion approach to prepare fluorescent nanoscale coordination polymers for bioimaging

RSC Advances ◽

10.1039/c4ra00214h ◽

2014 ◽

Vol 4 (28) ◽

pp. 14803-14806 ◽

Cited By ~ 2

Author(s):

Zhiyong Sun ◽

Yangxue Li ◽

Xingang Guan ◽

Tingting Sun ◽

Li Chen ◽

...

Keyword(s):

Coordination Polymers ◽

Single Step ◽

Blue Fluorescence ◽

Microemulsion Method ◽

Good Biocompatibility ◽

Bright Blue Fluorescence ◽

Bright Blue ◽

Nanoscale Coordination Polymers

A facile and convenient microemulsion method is demonstrated to prepare fluorescent nanoscale coordination polymers. And the nanoscale coordination polymers exhibited bright blue fluorescence and good biocompatibility, thus giving them the ability for bioimaging.

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Mechanistic insights into heavy metal ion sensing by NOS2-macrocyclic fluorosensors via the structure-function relationship: influences of fluorophores, solvents and anions

The Analyst ◽

10.1039/c9an02466b ◽

2020 ◽

Vol 145 (5) ◽

pp. 1667-1676 ◽

Cited By ~ 1

Author(s):

Eunji Lee ◽

Huiyeong Ju ◽

In-Hyeok Park ◽

Sunhong Park ◽

Mari Ikeda ◽

...

Keyword(s):

Heavy Metal ◽

Metal Ions ◽

Structure Function ◽

Metal Ion ◽

Heavy Metal Ions ◽

Solvent Interactions ◽

Ion Sensing ◽

Metal Ion Sensing ◽

Function Relationship ◽

Heavy Metal Ion Sensing

The sensing properties of heavy metal ions by macrocycle-based fluorosensors are sensitive not only to cation–receptors and cation–fluorophore interactions but also to cation–anion (endo/exo-coordination modes) and/or cation–solvent interactions.

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Metal Ions Sensing by Biodots Prepared from DNA, RNA, and Nucleotides

Biosensors ◽

10.3390/bios11090333 ◽

2021 ◽

Vol 11 (9) ◽

pp. 333

Author(s):

Maofei Wang ◽

Masaki Tsukamoto ◽

Vladimir G. Sergeyev ◽

Anatoly Zinchenko

Keyword(s):

Metal Ions ◽

Metal Ion ◽

Transition Metal Ions ◽

Guanosine Monophosphate ◽

Ion Concentration ◽

Metal Nanostructures ◽

Fluorescent Nanoparticles ◽

Paper Strip ◽

Ion Sensing ◽

Metal Ion Sensing

Nucleic acids that exhibit a high affinity toward noble and transition metal ions have attracted growing attention in the fields of metal ion sensing, toxic metal ion removal, and the construction of functional metal nanostructures. In this study, fluorescent nanoparticles (biodots) were synthesized from DNA, RNA, and RNA nucleotides (AMP, GMP, UMP, and CMP) using a hydrothermal (HT) method, in order to study their metal ion sensing characteristics. The fluorescent properties of biodots differ markedly between those prepared from purine and pyrimidine nucleobases. All biodots demonstrate a high sensitivity to the presence of mercury cations (Hg2+), while biodots prepared from DNA, RNA, and guanosine monophosphate (GMP) are also sensitive to Ag+ and Cu2+ ions, but to a lesser extent. The obtained results show that biodots inherit the metal ion recognition properties of nucleobases, while the nucleobase composition of biodot precursors affects metal ion sensitivity and selectivity. A linear response of biodot fluorescence to Hg2+ concentration in solution was observed for AMP and GMP biodots in the range 0–250 μM, which can be used for the analytic detection of mercury ion concentration. A facile paper strip test was also developed that allows visual detection of mercury ions in solutions.

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