Plasmonic Au@Ag@mSiO<sub>2</sub> Nanorattles for In Situ Imaging of Bacterial Metabolism by Surface-Enhanced Raman Scattering Spectroscopy
Sarah De Marchi, Daniel García‐Lojo, Gustavo Bodelón, Jorge Pérez‐Juste, Isabel Pastoriza‐Santos
Abstract
nanorattles for optophysiological monitoring of extracellular metabolism in microbial populations. A key element of the SERS substrate is the mesoporous silica shell encapsulating single plasmonic nanoparticles, which furnishes colloidal stability and molecular sieving capabilities to the engineered nanostructures, thereby realizing robust, sensitive, and reliable measurements. The reported SERS-based approach may be used as a powerful tool for deciphering the role of extracellular metabolites and physicochemical factors in microbial community dynamics and interactions.
Topics & Concepts
Materials scienceRaman scatteringPlasmonNanotechnologySubstrate (aquarium)Raman spectroscopyExtracellularMicrobial metabolismMesoporous silicaExtracellular polymeric substanceNanoparticleIn situBiofilmMesoporous materialBacteriaChemistryOptoelectronicsBiochemistryBiologyOrganic chemistryOpticsEcologyCatalysisPhysicsGeneticsBiosensors and Analytical DetectionGold and Silver Nanoparticles Synthesis and ApplicationsAdvanced Nanomaterials in Catalysis