{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Mohammadi A"],"funding":["Natural Sciences and Engineering Research Council of Canada"],"pagination":["E3404"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC6209902"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["18(10)"],"pubmed_abstract":["This study examines the improvements in surface-enhanced Raman scattering (SERS) performance achieved when silver nanodendritic structures are coated with various graphene-based materials, namely graphene oxide (GO), reduced graphene oxide (rGO), and graphene nanoplatelets (GNPs). The tests are performed on our unique SERS-active substrates, prepared on the surface of planar microelectrode chips using an electric field-guided Ag nanoparticle assembly process. The graphene-based materials are introduced into the substrate by means of an in-house spray-coating technique. The SERS enhancement effect of each coating is examined as a function of spray nozzle passes (N) and optimal values are identified for each coating type. The enhancements found for GO, rGO, and GNP (6⁻9 graphene layers thick) coatings are 2.3 (N = 25), 2.5 (N = 5), and 1.6 (N = 1), respectively. Additionally, in comparison with their uncoated counterparts, substrates coated with rGO (N = 5) are shown to enhance the intensity of the methamphetamine (5 ppb) spectrum in artificial saliva by approximately 3-fold. Overall, it can be concluded that the introduction of GO or rGO to the SERS substrate using spray-coating, a simple and also scalable method, can produce substantial SERS performance enhancement."],"journal":["Sensors (Basel, Switzerland)"],"pubmed_title":["Improving the Surface-Enhanced Raman Scattering Performance of Silver Nanodendritic Substrates with Sprayed-On Graphene-Based Coatings."],"pmcid":["PMC6209902"],"funding_grant_id":["RGPIN/261691-2013"],"pubmed_authors":["Nicholls DL","Mohammadi A","Docoslis A"],"additional_accession":[]},"is_claimable":false,"name":"Improving the Surface-Enhanced Raman Scattering Performance of Silver Nanodendritic Substrates with Sprayed-On Graphene-Based Coatings.","description":"This study examines the improvements in surface-enhanced Raman scattering (SERS) performance achieved when silver nanodendritic structures are coated with various graphene-based materials, namely graphene oxide (GO), reduced graphene oxide (rGO), and graphene nanoplatelets (GNPs). The tests are performed on our unique SERS-active substrates, prepared on the surface of planar microelectrode chips using an electric field-guided Ag nanoparticle assembly process. The graphene-based materials are introduced into the substrate by means of an in-house spray-coating technique. The SERS enhancement effect of each coating is examined as a function of spray nozzle passes (N) and optimal values are identified for each coating type. The enhancements found for GO, rGO, and GNP (6⁻9 graphene layers thick) coatings are 2.3 (N = 25), 2.5 (N = 5), and 1.6 (N = 1), respectively. Additionally, in comparison with their uncoated counterparts, substrates coated with rGO (N = 5) are shown to enhance the intensity of the methamphetamine (5 ppb) spectrum in artificial saliva by approximately 3-fold. Overall, it can be concluded that the introduction of GO or rGO to the SERS substrate using spray-coating, a simple and also scalable method, can produce substantial SERS performance enhancement.","dates":{"release":"2018-01-01T00:00:00Z","publication":"2018 Oct","modification":"2025-04-26T13:51:59.126Z","creation":"2019-03-27T00:05:44Z"},"accession":"S-EPMC6209902","cross_references":{"pubmed":["30314312"],"doi":["10.3390/s18103404"]}}