Dendrimer-Based Gold Nanostructures for SERS Detection of Pesticides in Water
authors Fernandes, T; Fateixa, S; Nogueira, HIS; Daniel-da-Silva, AL; Trindade, T
nationality International
journal EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
author keywords Gold; Nanoparticles; Dendrimers; Raman spectroscopy; SERS; Pesticides
keywords ENCAPSULATED AU NANOPARTICLES; PAMAM DENDRIMERS; METAL NANOCLUSTERS; ORGANIC POLLUTANTS; RAMAN; REMOVAL; PH; EXTRACTION; RESONANCE; CATALYSIS
abstract Dendrimers are polymers with well-defined architectures and tunable chemistry, which make them useful in a number of applications. Herein, the chemistry of poly(amido)amine (PAMAM) dendrimers with different functional groups was explored to produce a variety of plasmonic systems based on Au colloidal nanoparticles. The resulting systems present long-term colloidal stability and were investigated as sensitive platforms for surface-enhanced Raman scattering (SERS). The application of these SERS platforms for the detection of water trace pollutants, was explored through the analysis of selected pesticides. Noteworthy, dendrimer coated Au nanoparticles with tunable properties such as size, shape and surface chemistry, were obtained by varying the dendrimer chemical properties. The surface chemistry of PAMAM capped Au colloids was explored in order to produce target selective SERS substrates for pesticide detection, that allowed to reach detection limits down to 10 nm.
publisher WILEY-V C H VERLAG GMBH
issn 1434-1948
year published 2020
volume 2020
issue 13
beginning page 1153
ending page 1162
digital object identifier (doi) 10.1002/ejic.201901134
web of science category Chemistry, Inorganic & Nuclear
subject category Chemistry
unique article identifier WOS:000506870100001
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journal impact factor 2.529
5 year journal impact factor 2.284
category normalized journal impact factor percentile 65.556
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