A label-free and selective SERS-based sensor for determination of ampicillin contamination in water using a fabric gold–silver alloy substrate with a handheld Raman spectrometer
Kullavadee Karn-orachai, Aroonsri Ngamaroonchote
Abstract
A plasmonic Au–Ag alloy fabric substrate is developed via in situ self-assembly of Au–Ag alloy NPs on muslin fabric. An appropriate molar ratio of Au and Ag and type of substrate are proved to be key factors for selective detection of ampicillin.
Topics & Concepts
ChemistrySubstrate (aquarium)AlloyRaman spectroscopySurface-enhanced Raman spectroscopyNanotechnologyAnalytical Chemistry (journal)ChromatographyRaman scatteringOpticsOrganic chemistryMaterials scienceOceanographyGeologyPhysicsGold and Silver Nanoparticles Synthesis and ApplicationsBiosensors and Analytical DetectionAdvanced biosensing and bioanalysis techniques