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Identification of Several Toxic Metal Ions Using a Colorimetric Sensor Array

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Biomimetic Sensing

Part of the book series: Methods in Molecular Biology ((MIMB,volume 2027))

Abstract

Water pollution by toxic metal ions is a worldwide environmental and health problem, and therefore monitoring of toxic metal ions in water resources is highly desired. In this chapter, we describe a simple colorimetric sensor array for simultaneous detection of multiple toxic heavy metal ions (Hg2+, Cd2+, Fe3+, Pb2+, Al3+, Cu2+, and Cr3+) in water. This assay is produced by using 11-mercaptoundecanoic acid (MUA)-capped gold nanoparticles (AuNPs) and five amino acids (lysine, cysteine, histidine, tyrosine, and arginine). The presence of amino acids can enhance or diminish the aggregation MUA-capped AuNPs with metal ions. The color change of the sensor array after aggregation in some of the channels creates unique response patterns for each metal ion.

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Author information

Authors and Affiliations

  1. Department of Chemistry, Hacettepe University, Ankara, Turkey

    Gülsu Şener & Adil Denizli

Authors
  1. Gülsu Şener
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  2. Adil Denizli
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Corresponding author

Correspondence to Adil Denizli .

Editor information

Editors and Affiliations

  1. Departments of Bioengineering and Chemical Engineering, Northeastern University, Boston, MA, USA

    Jessica E. Fitzgerald

  2. Departments of Chemical Engineering, Bioengineering, Chemistry and Chemical Biology, Northeastern University, Boston, MA, USA

    Hicham Fenniri

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Şener, G., Denizli, A. (2019). Identification of Several Toxic Metal Ions Using a Colorimetric Sensor Array. In: Fitzgerald, J., Fenniri, H. (eds) Biomimetic Sensing. Methods in Molecular Biology, vol 2027. Humana, New York, NY. https://doi.org/10.1007/978-1-4939-9616-2_7

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  • DOI: https://doi.org/10.1007/978-1-4939-9616-2_7

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  • Publisher Name: Humana, New York, NY

  • Print ISBN: 978-1-4939-9615-5

  • Online ISBN: 978-1-4939-9616-2

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