Chapter 3 Metal ions speciation in the environment: Distribution, toxicities and analyses

Gupta, Vidhu; Ali, Imran; Aboul‐Enein, Hassan Y.

doi:10.1016/s1474-8177(07)05003-6

Cited by 11 publications

(7 citation statements)

References 116 publications

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“…Discharge of toxic heavy metal ions to the environment causes most harmful issues to the human and ecosystem. For occasion, the industry of ceramic, semiconductors, pharmaceutical, metallurgical, agricultural and petrochemicals contaminates the surrounding water and soil 1 – 3 . The Cd is one of the toxic heavy metal, which causes nephrotoxicity, flu-like symptoms, renal tubular dysfunction, bone demineralization and cancers even for the intake of trace level through contaminated food and water 4 – 8 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Porous MnCo2O4 for Electrochemical Determination of Cadmium ions in Water Samples

Velmurugan¹,

Chen²

2017

Sci Rep

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To utilize the maximum activity of nanomaterials, it was specifically synthesized by appropriate physicochemical properties. In that aspect, we have described the synthesis of porous MnCo2O4 by simple chemical route and applied for the selective detection of cadmium (Cd (II)). The as-prepared porous MnCo2O4 was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer–Emmett–Teller (BET) adsorption isotherm, X-ray diffraction pattern analysis (XRD), Fourier transform infra-red spectroscopy (FT-IR), energy dispersive X-ray (EDX) and electrochemical techniques. The porous MnCo2O4 exhibited an excellent electrochemical behaviour and good analytical response towards the determination of Cd (II). Those analytical factors such as pH, deposition potential and deposition time are optimized by using differential pulse anodic stripping voltammetry (DPASV). A wide linear concentration range from 2.3 to 120 µg L−1, limit of detection (LOD) of 0.72 µg L−1 and the limit of quantification (LOQ) of 0.91 µg L−1 were achieved for determination of Cd (II). The selectivity of the developed sensor was explored in the presence of co-interfering ions. Also our sensor exhibits a good stability, reproducibility and repeatability. In addition, the practicability of proposed sensor was evaluated for the detection of Cd (II) in real water samples.

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Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Porous MnCo2O4 for Electrochemical Determination of Cadmium ions in Water Samples

Velmurugan¹,

Chen²

2017

Sci Rep

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“…In such biological environments, ions released may end up as different chemical species that produce different biological impacts [91][92][93]. The ions released from bulk metallic compounds , their speciation and their toxicity are also studied [94]. These processes also occur in inorganic NPs, and there is an increase of reports establishing that cations released from NPs are responsible of detrimental effects [91,95,96].…”

Section: Dissolution and Corrosionmentioning

confidence: 99%

Reactivity of inorganic nanoparticles in biological environments: insights into nanotoxicity mechanisms

Casals¹,

González²,

Puntes³

2012

J. Phys. D: Appl. Phys.

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A deeper understanding of the inorganic nanoparticles behavior in biological media is needed not only to fully control and develop the potential of these materials but also to increase the knowledge of the physical chemistry of inorganic materials when its morphology approaches that of molecular entities. Although this knowledge and control is not yet entirely acquired, industry and society are already using nanomaterials in greater quantities and in consumer products. As normally happens when something new arrives to society, the interest in the broader implications of this emerging technology has grown together with unfounded "nanoeuphoria" and "nanoscares". In this context, only understanding the mechanisms of the nano-bio interaction will be possible to safely develop nanotechnology. In this review, we discuss on how nanoparticles behave once are naturally or intendedly produced and are exposed to humans and the environment. The response of nanoparticles inside organisms or released to the environment is complex and diverse, and depends on a variety of parameters involved. Mainly, they may i) be aggregated into microscopic particles or embedded in exposed materials; ii) the surfaces of the nanoparticles, which determine their bioactivity, experience constant modifications; and iii) nanoparticles may corrode and dissolve or they can suffer morphological modifications.

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“…Heavy metals are toxic species that can accumulate in living organisms via the consumption of food and water, breathing, and absorption through the skin [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ]. Heavy metals are considered one of the main sources of pollution in the environment [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ]. Among them, lead and cadmium represent a major concern for public health due to their high toxicity even at low concentrations.…”

Section: Introductionmentioning

confidence: 99%

Single-Use Fluidic Electrochemical Paper-Based Analytical Devices Fabricated by Pen Plotting and Screen-Printing for On-Site Rapid Voltammetric Monitoring of Pb(II) and Cd(II)

Soulis

Trachioti

Kokkinos

et al. 2021

Sensors

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This work reports the fabrication of integrated electrochemical fluidic paper-based analytical devices (ePADs) using a marker pen drawing and screen-printing. Electrodes were deposited on paper using screen-printing with conductive carbon ink. Then, the desired fluidic patterns were formed on the paper substrate by drawing with a commercial hydrophobic marker pen using an inexpensive computer-controlled x-y plotter. The working electrode was characterized by cyclic voltammetry and scanning electron microscopy. The analytical utility of the electrochemical PADs is demonstrated through electrochemical determination of Pb(II) and Cd(II) by anodic stripping voltammetry. For this purpose, the sample was mixed with a buffer solution and a Bi(III) solution, applied to the test zone of the PAD, the metals were preconcentrated as a bismuth alloy on the electrode surface and oxidized by applying an anodic potential scan. The proposed manufacturing approach enables the large-scale fabrication of fit-for-purpose disposable PADs at low cost which can be used for rapid on-site environmental monitoring.

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Chapter 3 Metal ions speciation in the environment: Distribution, toxicities and analyses

Cited by 11 publications

References 116 publications

Synthesis and Characterization of Porous MnCo2O4 for Electrochemical Determination of Cadmium ions in Water Samples

Synthesis and Characterization of Porous MnCo2O4 for Electrochemical Determination of Cadmium ions in Water Samples

Reactivity of inorganic nanoparticles in biological environments: insights into nanotoxicity mechanisms

Single-Use Fluidic Electrochemical Paper-Based Analytical Devices Fabricated by Pen Plotting and Screen-Printing for On-Site Rapid Voltammetric Monitoring of Pb(II) and Cd(II)

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