Fundamental Coordination Chemistry, Environmental Chemistry, and Biochemistry of Lead(II)

Claudio, Elizabeth S.; Godwin, Hilary; Magyar, John S.

doi:10.1002/chin.200322246

Cited by 21 publications

(32 citation statements)

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“…The monitoring of lead ions (Pb 2+ ) in the aquatic ecosystem is of great importance due to their harmful effect on the environment and human health [1,2,3]. Exposure to even a very low level of Pb 2+ may cause serious human ailments such as reproductive, neurological, cardiac, and mental disorders [2,3].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Detection of Ultratrace Lead Ion through Attaching and Detaching DNA Aptamer from Electrochemically Reduced Graphene Oxide Electrode

Lee

Kim

2019

Nanomaterials

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This paper describes a simple strategy for the ultratrace level detection of Pb2+ ion based on G-quadruplex DNA and an electrochemically reduced graphene oxide (ERGO) electrode. First, ERGO was formed on a glassy carbon electrode (GCE) by the reduction of graphene oxide (GO) using cyclic voltammetry. Subsequently, a methylene blue (MB)-tagged, guanine-rich DNA aptamer (Apt) was attached to the surface of ERGO via π-π interaction, leading to the Apt-modified ERGO electrode. The presence of Pb2+ could generate the folding of Apt to a G-quadruplex structure. The formation of G-quadruplex resulted in detaching the Apt from the ERGO/GCE, leading to a change in redox current of the MB tag. Electrochemical measurements showed the proposed sensor had an exceptional sensitivity for Pb2+ with a linear range from 10−15 to 10−9 M and a detection limit of 0.51 fM. The sensor also exhibited high selectivity for Pb2+, as well as many other advantages, such as stability, reproducibility, regeneration, as well as simple fabrication and operation processes.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Detection of Ultratrace Lead Ion through Attaching and Detaching DNA Aptamer from Electrochemically Reduced Graphene Oxide Electrode

Lee

Kim

2019

Nanomaterials

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“…It is worth to recall that lead iodide exists in several polytypes, all of which involve I-Pb-I sandwiches stacked in a variety of ways [4]. Methylammonium lead halide (MAPbX3) perovskites are usually employed in photovoltaic applications and can be efficiently synthesized by cheap and easy solution-based methods [5], [6], [7], [8], starting from common materials, namely PbI2 and methylammonium iodide (CH3NH3I) in an appropriate coordinating solvent, such as dimethylsulfoxide (DMSO), dimethylformamide (DMF) or γbutyrolactone (GBL). The perovskite synthesis process relies on the mixing of a metal-halide precursor solution (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…PbI2 at room temperature is a bright yellow crystalline solid. A plethora of experimental and theoretical works have been devoted to the investigation of this material in the solid state [5], [6], [7], [8], including the spectroscopic characterization of the nature of its valence band [10], [11]. To our knowledge, only few studies have investigated the gas-phase PbI2 molecule [6], [12], [13], since this system is difficult to be isolated at room temperature.…”

Section: Introductionmentioning

confidence: 99%

The nature of the lead-iodine bond in PbI2: A case study for the modelling of lead halide perovskites

Borghesi

Radicchi

Belpassi

et al. 2019

Computational and Theoretical Chemistry

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A detailed knowledge of the basic electronic interactions in lead halide perovskites components (PbI2 and methylammonium iodide) can possibly drive enhanced solar cell efficiency. We report an extensive investigation on the electronic structure and nature of the chemical bond in the PbI2 perovskite precursor, both in gas and solid state, together with a comparison with available experimental data, which allows to effectively calibrate the computational framework, along with gaining basic understanding on the nature of the Pb I chemical bond. Inclusion of spin orbit coupling and calibrated HF exchange contribution to the DFT hybrid functional are proved essential for an accurate description of the electronic structure of both molecular and solid state PbI2. Such computational framework, calibrated on the model PbI2 system, can be directly translated to the accurate description of the electronic band structure of the prototypical methylammonium lead-iodide perovskite, setting the basis for the trustful modelling of different lead-halide perovskites. Graphical abstract

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“…On the contrary, Pb(II) did not display such selectivity toward a particular functional group, but it showed a synergic effect upon ion uptake. The same behavior for Pb(II) was mentioned above: the fact that Pb(II) cation can bind a wide variety of hard and soft ligands is related with unique electronic properties steaming from relativistic effects [156]. Further theoretical and experimental investigations on this issue are still needed.…”

Section: Carboxyl-functionalized Nanosystemsmentioning

confidence: 60%

Nanostructured Spinel Ferrites: Synthesis, Functionalization, Nanomagnetism and Environmental Applications

Odio¹,

Reguera²

2017

Magnetic Spinels - Synthesis, Properties and Applications

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Nanostructured spinel ferrites have gained a great deal of attention. It comes from the possibility of tuning their magnetic properties by careful manipulation of the synthetic conditions. At the same time, since the nanoparticle (NP) surface is reactive toward many chemical groups, it provides great versatility for further functionalization of the nanosystems. Such characteristics make ferrite nanoparticles excellent candidates for environmental applications. First, the chapter deals with the basics of the synthetic methodologies, functionalization strategies and magnetic properties of nanoparticles, with emphasis on how surface manipulation is reflected in the properties of the materials. Next, we review some of the applications of ferrites as magnetic sorbents for several hazardous substances in aqueous medium and try to systematize the adsorption mechanism as a function of the coating material. Finally, a short summary concerning the main uses of ferrites as magnetic catalysts in oxidation technologies is included.

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Fundamental Coordination Chemistry, Environmental Chemistry, and Biochemistry of Lead(II)

Abstract: For Abstract see ChemInform Abstract in Full Text.

Cited by 21 publications

References 0 publications

Electrochemical Detection of Ultratrace Lead Ion through Attaching and Detaching DNA Aptamer from Electrochemically Reduced Graphene Oxide Electrode

Electrochemical Detection of Ultratrace Lead Ion through Attaching and Detaching DNA Aptamer from Electrochemically Reduced Graphene Oxide Electrode

The nature of the lead-iodine bond in PbI2: A case study for the modelling of lead halide perovskites

Nanostructured Spinel Ferrites: Synthesis, Functionalization, Nanomagnetism and Environmental Applications

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