Magnetite-Supported Gold Nanostars for the Uptake and SERS Detection of Tetracycline.

ABSTRACT: Magnetite nanoparticles (MNPs) decorated with gold nanostars (AuNSs) have been prepared by using a seed growth method without the addition of surfactants or colloidal stabilizers. The hybrid nanomaterials were investigated as adsorbents for the uptake of tetracycline (TC) from aqueous solutions and subsequent detection using surface-enhanced Raman scattering (SERS). Several parameters were investigated in order to optimize the performance of these hybrid platforms on the uptake and SERS detection of TC, including variable pH values and the effect of contact time on the removal of TC. The spatial distribution of TC and AuNS on the hybrid composites was accomplished by coupling SERS analysis with Raman imaging studies, allowing also for the determination of the detection limit for TC when di

SUBMITTER: Pinheiro PC 

PROVIDER: S-EPMC6359395 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature