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EcoRI-Modified Gold Nanoparticles for Dual-Mode Colorimetric Detection of Magnesium and Pyrophosphate Ions

Authors

  • Hongbo Wang,

    1. Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
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  • Wei Xu,

    1. Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
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  • Hao Zhang,

    1. Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371
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  • Dawei Li,

    1. Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371
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  • Zhaoqi Yang,

    1. Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371
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  • Xiaoji Xie,

    1. Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
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  • Tianhu Li,

    Corresponding author
    1. Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371
    • Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371.
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  • Xiaogang Liu

    Corresponding author
    1. Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
    2. Institute of Materials Research and Engineering, 3, Research Link, Singapore 117602
    • Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
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Abstract

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Rapid colorimetric detection of magnesium ions is demonstrated via a convenient approach, based on EcoRI-modified gold nanoparticles and a specifically designed DNA duplex. EcoRI is an enzyme obtained from certain strains of Escherichia coli.

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