Journal
NANOMATERIALS
Volume 9, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/nano9020302
Keywords
gold nanoparticles; colorimetric detection; formaldehyde; resorcinol
Categories
Funding
- Spanish Government (MINECO/FEDER) [MAT2015-64139-C4-4-R, AGL2015-70235-C2-2-R]
- Generalitat Valenciana [PROMETEOII/2014/047]
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Gold nanoparticles functionalized with resorcinol moieties have been prepared and used for detecting formaldehyde both in solution and gas phases. The detection mechanism is based on the color change of the probe upon the aggregation of the nanoparticles induced by the polymerization of the resorcinol moieties in the presence of formaldehyde. A limit of detection of 0.5 ppm in solution has been determined. The probe can be deployed for the detection of formaldehyde emissions from composite wood boards.
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