Dual-functional SERRS and fluorescent aptamer sensor for abscisic acid detection via charged gold nanorods.

ABSTRACT: Abscisic acid (ABA) is a plant hormone, which plays an important role in plant growth, crop cultivation and modern agricultural engineering management. Accordingly, the detection of ABA content combined with new techniques and methods has become a more and more popular problem in the field of agricultural engineering. In this work, a SERRS and fluorescence dual-function sensor based on the fluorescence quenching and Raman enhancement properties of gold nanorods (AuNRs) was developed, and applied to the detection of plant hormone ABA. The dual-function reporter molecule Rhodamine isothiocyanate (RBITC) and complementary DNA (cDNA) were modified on AuNRs (AuNRs@RBITC@cDNA) as signal probes and aptamer modified magnetic nanoparticles (Fe₃O₄MNPs@Apt) as capture probes. Th

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC9420979 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature