What is it about?
By utilizing Au NPs together with Tollens reaction, people can detect formaldehyde using the naked eyes.
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Why is it important?
Gold nanoparticles (Au NPs) coupled with Tollens reagent were used for measuring formaldehyde. Au@Ag core–shell NPs were formed along with distinct color changes from pink to deep yellow. This colorimetric system was further immobilized into an agarose gel, which was used for monitoring of gaseous formaldehyde.
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This page is a summary of: A colorimetric agarose gel for formaldehyde measurement based on nanotechnology involving Tollens reaction, Chemical Communications, January 2014, Royal Society of Chemistry,
DOI: 10.1039/c4cc00914b.
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