Aptamer Functionalized Gold Nanoparticles for the Detection of Heavy Metal Ions
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- Gold Nanoparticles, Heavy Metal Ions, Aptamer, Detection
- Afag Seyidova; Muhammad Shoaib; Zhouping Wang
- Gold nanoparticles are widely used in various fields including bioassay, biomarker and surface enhanced Raman due to their superior optical properties, catalytic properties and biocompatibility. Due to the nature of surface plasmon resonance, gold nanoparticles can be used as visual sensors and attract the attention of many researchers. Today, gold nanoparticles have been widely used by researchers for the detection of metal ions. The gold nanoparticles can be combined with the magnetic nano materials, and the formed magnetic materials are combined with the excellent properties of the gold nanoparticles and the magnetic nanoparticles, and can be visually analyzed in combination with the color reaction reaction substance. There are also small atomic clusters of precious metal quantum dots with strong fluorescence properties that are also the focus of researchers. Fluorescent precious metal nanoparticles have the property of continuous luminescence, adjustable electronic transitions in the ultraviolet and visible regions, and thus can be used as photoelectron sources for biomarkers, biosensors, and nanoscale luminescence. This paper reviews the research literature on the use of aptamer-functionalized gold nanoparticles for the detection of heavy metal ions in recent years.
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