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Green preparation of gold nanoparticles with Tremella fuciformis for surface enhanced Raman scattering sensing
journal contribution
posted on 2018-01-01, 00:00 authored by Bin TangBin Tang, J Liu, Linpeng Fan, D Li, X Chen, J Zhou, Jingliang LiJingliang LiA simple in-situ synthesis method was developed to fabricate complex of Tremella fuciformis (TF) and gold nanoparticles (Au NPs). TF, one of the most popular fungi in the cuisine and medicine, acted as a biomass reducing agent and scaffold in the preparation of Au NPs. The intensities of the localized surface plasmon resonance (LSPR) of the complex of TF and Au NPs (Au@TFs) increased as the complex shrunk due to drying. The textures of TF prevent the aggregation of Au NPs during the drying process. The TFs show strong adsorption capacity for cationic dyes. It is suggested that the adsorption of the dyes onto TFs are achieved through electrostatic interactions between the TF and the dyes. Kinetics studies indicated that adsorption process could be well described by a pseudo-second-order model. Furthermore, the as-prepared Au@TFs were used as surface enhanced Raman scattering (SERS) substrates for analyzing trace dye molecules. The shrinkage of the TFs caused by drying concentrated dyes on their fruiting bodies, which led to the enhancement of Raman signals of dyes. The Au NPs on TF further enhanced the Raman signals. In-situ synthesis of Au NPs on TF may promote the applications of fungus materials in optical sensing of targets.
History
Journal
Applied surface scienceVolume
427Pagination
210 - 218Publisher
ElsevierLocation
Amsterdam, The NetherlandsPublisher DOI
ISSN
0169-4332Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2017, Elsevier B.V.Usage metrics
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BiomassIn-situ synthesisDye adsorptionSERSTrace analysisAdsorption kineticsScience & TechnologyPhysical SciencesTechnologyChemistry, PhysicalMaterials Science, Coatings & FilmsPhysics, AppliedPhysics, Condensed MatterChemistryMaterials SciencePhysicsANTIOXIDANT ACTIVITYPLASMON RESONANCEPOLYSACCHARIDESMUSHROOMFUNGUSSILVERNANOCRYSTALSDEGRADATIONANTITUMORTAPA1
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