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Title
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A Single Step Fast Track Methodology for In-Situ Detection of Hazardous Melamine by Using Highly Sensitive Polyphenolics Modified Nanogold Probe
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Sub-Title |
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Subject |
Colorimetric Gold Nanoprobe, Polyphenolics, Hydrogen Bonding, Green Strategy, Melamine Detection in Raw Milk.
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Sub-Subject |
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Author |
"Anila Arshad, Raheel Akram, Shahid Iqbal Rana, Gh
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Publish Year |
2019 |
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Supervisor |
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Diss#. |
DOI: 10.1166/jnn.2019.16716 |
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Pages |
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Text Language |
English |
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Accession |
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Library Section |
Research Article |
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Abstract |
A single step fast track method is proposed to determine melamine based on strong hydrogen
bonding between exocyclic amine group in melamine moiety and hydroxyl group of tannic acid
(TA); acting as reducing and functionalizing agent for synthesis of gold nanoparticles (Au NPs).
The proposed strategy is facile and highly time saving; as the detection of melamine with labelfree
gold nanoparticles was accomplished within five minutes. The colorimetric probe exhibits high
detection limit of 8 nM for melamine determination in raw milk, which is very low as compared to
other capping ligands employed for Au NPs such as borohydride, citrate and 3,5-dihydroxybenzoic
acid. The results show a highly sensitive linear range (0.03–2.5 M) between absorption ratio and
concentration of melamine with a correlation coefficient of 0.991. Pr
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