Mercury-ion optical sensors

Sherif A. El-Safty, M. A. Shenashen, Sherif A. El-Safty

    研究成果: Article

    67 引用 (Scopus)

    抄録

    The toxicity of mercury (Hg) to humans, including damage to the nervous system, is well known. Hg cannot be degraded into non-toxic compounds or other elements. It is released mainly through mining, industries, and fossil fuel combustion. Anthropogenic and natural activities, such as volcanoes, transform elemental Hg (Hg 0) into its ionic form [Hg(II)], which bioaccumulates in biota and is biomagnified in the food chain, notably in aquatic environments.This critical report aims to control Hg(II)-ion toxicity through risk assessment, recognition, and removal via high-level waste management. We first discuss successful and up-to-date developments in different techniques, designs and studies that are potentially useful in enhancing the effectiveness of control of Hg(II)-ion toxicity.The key to designing optical nanosensors is to construct chromophore and fluorophore receptors as nanoscale platform scavengers with different functional characteristics (e.g., density, accessibility, and intrinsic mobility), which allow for easy, reliable signaling in continuous monitoring modes. We highlight a technique that depends on the use of engineered mesocage materials that have multidirectional cavities and microsized, particle-like monoliths to control the adsorption/detection of toxic metal ions, especially Hg(II) ions.With regard to proximal sensing, we consider controlled assessment processes that involve the evaluation of intrinsic properties (e.g., signal change, long-term stability, adsorption efficiency, extraordinary sensitivity, selectivity, and reusability).This study provides evidence that miniaturized mesosensor strips can revolutionize consumer and industrial markets with the introduction of ion-sensor strips.

    元の言語English
    ページ(範囲)98-115
    ページ数18
    ジャーナルTrAC - Trends in Analytical Chemistry
    38
    DOI
    出版物ステータスPublished - 2012 9

    Fingerprint

    Optical sensors
    Mercury
    Ions
    sensor
    Toxicity
    ion
    toxicity
    Nanosensors
    Adsorption
    Volcanoes
    Fluorophores
    Poisons
    Mineral industry
    Reusability
    Neurology
    adsorption
    Waste management
    Chromophores
    Fossil fuels
    Risk assessment

    ASJC Scopus subject areas

    • Analytical Chemistry
    • Spectroscopy
    • Environmental Chemistry

    これを引用

    El-Safty, S. A., Shenashen, M. A., & El-Safty, S. A. (2012). Mercury-ion optical sensors. TrAC - Trends in Analytical Chemistry, 38, 98-115. https://doi.org/10.1016/j.trac.2012.05.002

    Mercury-ion optical sensors. / El-Safty, Sherif A.; Shenashen, M. A.; El-Safty, Sherif A.

    :: TrAC - Trends in Analytical Chemistry, 巻 38, 09.2012, p. 98-115.

    研究成果: Article

    El-Safty, SA, Shenashen, MA & El-Safty, SA 2012, 'Mercury-ion optical sensors', TrAC - Trends in Analytical Chemistry, 巻. 38, pp. 98-115. https://doi.org/10.1016/j.trac.2012.05.002
    El-Safty, Sherif A. ; Shenashen, M. A. ; El-Safty, Sherif A. / Mercury-ion optical sensors. :: TrAC - Trends in Analytical Chemistry. 2012 ; 巻 38. pp. 98-115.
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