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

2018 ◽  
Vol 42 (10) ◽  
pp. 7908-7913 ◽  
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.

Modulation of Electronic Properties of Single Wall Carbon Nanotubes by the Presence of an Ionic Shell

2006 ◽  
Vol 915 ◽  
Author(s):  
Vladimir Dobrokhotov ◽  
Chris Berven
Keyword(s):  
Carbon Nanotubes ◽  
Heavy Metal ◽  
Band Structure ◽  
Metal Ion ◽  
Single Wall Carbon Nanotubes ◽  
Functionalized Carbon Nanotubes ◽  
Ion Sensing ◽  
Fixed Distance ◽  
Metal Ion Sensing ◽  
Heavy Metal Ion Sensing

AbstractWe report the change to the band structure of two types of carbon nanotubes due to the presence of an isolated, non-conducting, uniformly charged shell held at a fixed distance above their surfaces. We find that, depending on the chirality of the nanotube, the strain on the lattice causes the dispersion relationships to change. This change can result in a modification of the band structure which can induce a metal-semiconductor transition. We consider these effects as a possible mechanism for heavy-metal ion sensing by functionalized carbon-nanotubes.

Green synthesis of gold nanoparticles and its application for the trace level determination of painter's colic

RSC Advances ◽  
2015 ◽  
Vol 5 (21) ◽  
pp. 16284-16291 ◽  
Author(s):  
Chelladurai Karuppiah ◽  
Selvakumar Palanisamy ◽  
Shen-Ming Chen ◽  
R. Emmanuel ◽  
K. Muthupandi ◽  
...  
Keyword(s):  
Analytical Chemistry ◽  
Heavy Metal ◽  
Green Synthesis ◽  
Metal Ion ◽  
Trace Level ◽  
Ion Sensing ◽  
Metal Ion Sensing ◽  
Heavy Metal Ion Sensing ◽  
Trace Level Determination

The green synthesis of metal nanoparticles is found to be more attractive in various disciplines, including in analytical chemistry for heavy metal ion sensing.

Triazole-amide isosteric pyridine-based supramolecular gelators in metal ion and biothiol sensing with excellent performance in adsorption of heavy metal ions and picric acid from water

2019 ◽  
Vol 43 (2) ◽  
pp. 934-945 ◽  
Author(s):  
Atanu Panja ◽  
Kumaresh Ghosh
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Metal Ion ◽  
Heavy Metal Ions ◽  
Marked Effect ◽  
Picric Acid ◽  
Excellent Performance ◽  
Ion Sensing ◽  
Gelling Properties ◽  
Metal Ion Sensing

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.

Thiazole-substituted non-symmetrical metallophthalocyanines: synthesis, characterization, electrochemical and heavy metal ion sensing properties

2020 ◽  
Vol 44 (14) ◽  
pp. 5201-5210 ◽  
Author(s):  
Ayk Beduoğlu ◽  
Altuğ Mert Sevim ◽  
Atıf Koca ◽  
Ahmet Altındal ◽  
Zehra Altuntaş Bayır
Keyword(s):  
Heavy Metal ◽  
Metal Ion ◽  
Functional Group ◽  
Redox Properties ◽  
Heavy Metal Ion ◽  
Sensing Properties ◽  
Ion Sensing ◽  
Metal Ion Sensing ◽  
Heavy Metal Ion Sensing

Novel non-symmetrical metallophthalocyanines with a thiazole functional group were prepared. Their redox properties and heavy metal ion sensing performances were fully investigated.

scholarly journals Screen-printed back-to-back electroanalytical sensors: heavy metal ion sensing

The Analyst ◽  
2015 ◽  
Vol 140 (12) ◽  
pp. 4130-4136 ◽  
Author(s):  
Ana P. Ruas de Souza ◽  
Christopher W. Foster ◽  
Athanasios V. Kolliopoulos ◽  
Mauro Bertotti ◽  
Craig E. Banks
Keyword(s):  
Heavy Metal ◽  
Drinking Water ◽  
Metal Ion ◽  
Electrochemical Sensing ◽  
Heavy Metal Ion ◽  
Icp Oes ◽  
Ion Sensing ◽  
Metal Ion Sensing ◽  
Heavy Metal Ion Sensing ◽  
Screen Printed

The back-to-back screen-printed electrochemical sensing approach is applied to the quantification of lead(ii) in drinking water which is independently verified with ICP-OES.

Composites Based on Conducting Polymers and Carbon Nanomaterials for Heavy Metal Ion Sensing (Review)

2018 ◽  
Vol 48 (4) ◽  
pp. 293-304 ◽  
Author(s):  
Megha A. Deshmukh ◽  
Mahendra D. Shirsat ◽  
Almira Ramanaviciene ◽  
Arunas Ramanavicius
Keyword(s):  
Heavy Metal ◽  
Conducting Polymers ◽  
Metal Ion ◽  
Carbon Nanomaterials ◽  
Heavy Metal Ion ◽  
Ion Sensing ◽  
Metal Ion Sensing ◽  
Heavy Metal Ion Sensing

scholarly journals Removal of Some Heavy Metal Cations from Aqueous Solution by Adsorption onto Natural Kaolin

2005 ◽  
Vol 23 (7) ◽  
pp. 519-534 ◽  
Author(s):  
H. Ceylan ◽  
T. Şahan ◽  
R. Gürkan ◽  
Ş. Kubilay
Keyword(s):  
Aqueous Solution ◽  
Heavy Metal ◽  
Metal Ion ◽  
Metal Cations ◽  
Equilibrium Studies ◽  
Heavy Metal Cations ◽  
Adsorption Removal ◽  
Adsorbate Concentration ◽  
Endothermic Process ◽  
Equilibrium Concentrations

The adsorption removal of some heavy metal cations such as Cu(II), Zn(II) and Co(II) from aqueous solution onto kaolin has been studied using the batch method with initial metal ion concentrations within the range 15–70 mg/l. The percentage adsorption and equilibrium concentrations were determined by means of atomic absorption flame photometry as a function of adsorbate concentration, pH and temperature. Ion-exchange studies showed that over the complete concentration range studied the adsorption ratios for metal cations adsorbed onto kaolin correlated with the linear forms of the Langmuir, Freundlich and Dubinin—Kaganer—Radushkevich (DKR) adsorption isotherms. The cationexchange capacity of kaolin towards each metal ion studied was evaluated. It was found that the adsorption phenomena depended on the charge density and diameter of the hydrated ion. The equilibrium studies demonstrated that the selectivity of the ions followed the sequence Zn(II) > Cu(II) > Co(II) at pH 7.0. Calculation of thermodynamic parameters such as the standard enthalpy (ΔH0), Gibbs free energy (ΔG0) and entropy (ΔS0) showed that the adsorption of the heavy metal ions studied onto kaolin was an endothermic process which was favoured at higher temperatures. These results show that natural kaolin has a considerable potential for the removal of heavy metal cationic species from aqueous solution and wastewater.

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