ArticleMikrochimica acta2019
A multi-channel localized surface plasmon resonance system for absorptiometric determination of abscisic acid by using gold nanoparticles functionalized with a polyadenine-tailed aptamer.
Article in Mikrochimica acta, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 21 citations in OpenAlex.
- A SERS/LSPR Dual-Signal Aptamer Sensor for Abscisic Acid Detection Based on Unmodified Gold Nanoparticles.Biosensors · 2026Article
- Aptamers as emerging tools for plant disease management: From biosensing to active modulation.iScience · 2025Review
- Review
- A deep learning-enabled smartphone platform for rapid and sensitive colorimetric detection of dimethoate pesticide.Analytical and bioanalytical chemistry · 2023Article
- Dual-functional SERRS and fluorescent aptamer sensor for abscisic acid detection via charged gold nanorods.Frontiers in chemistry · 2022Article
- Recent Advances in Aptamer Sensors.Sensors (Basel, Switzerland) · 2021Review
- Recent advances in functionalization of plasmonic nanostructures for optical sensing.Mikrochimica acta · 2021Review
- Atmospheric-Pressure Pulsed Discharge Plasma in a Slug Flow Reactor System for the Synthesis of Gold Nanoparticles.ACS omega · 2020Article
- An efficient LSPR method to quantitatively detect dimethoate: Development, characterization and evaluation.PloS one · 2020Article
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Authors and funding
10 authors at 3 institutions in 2 countries.
Funding
Abstract
A multi-channel localized surface plasmon resonance system is described for absorptiometric determination of abscisic acid (ABA). The system is making use of gold nanoparticles and consists of a broadband light source, a multi-channel alignment device, and a fiber spectrometer. The method is based on the specific interaction between an ABA-binding aptamer and ABA. This induces the growth of gold nanoparticles (AuNPs) functionalized with a polyadenine-tailed aptamer that act as optical probes. Different concentrations of ABA give rise to varied morphologies of grown AuNPs. This causes a change of absorption spectra which is recorded by the system. ABA can be quantified by measurement of the peak wavelength shifts of grown AuNPs. Under optimized conditions, this method shows a linear relationship in the 1 nM to 10 μM ABA concentration range. The detection limit is 0.51 nM. The sensitivity of the ABA assay is strongly improved compared to the method based on salt-induced AuNP aggregation. This is attributed to the use of a poly-A-tailed aptamer and the catalytic ability of AuNPs. In the actual application, the ABA concentration of ABA in fresh leaves of rice is measured with the maximum relative error of 8.03% in comparison with the ELISA method. Graphical abstractSchematic representation of an absorptiometric approach for determination of abscisic acid based on the growth of polyA-tailed aptamer-AuNPs probes and a multi-channel localized surface plasmon resonance system.
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