ArticleMikrochimica acta2018
Exonuclease-assisted multicolor aptasensor for visual detection of ochratoxin A based on G-quadruplex-hemin DNAzyme-mediated etching of gold nanorod.
Article in Mikrochimica acta, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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Who cites it
27 citing papers in PubMed, 78 citations in OpenAlex.
- Specific Binding Agents for the Molecular Recognition of Biotoxins: Recent Advances and Applications in Forensic Toxicology.Molecules (Basel, Switzerland) · 2026Review
- Tri-mode fluorescence/colorimetric/strip aptasensor with CRISPR/Cas12a-driven cascade strategy for mycotoxin.Current research in food science · 2026Article
- Aptamers as emerging tools for plant disease management: From biosensing to active modulation.iScience · 2025Review
- Self-Sustained Biophotocatalytic Nano-Organelle Reactors with Programmable DNA Switches for Combating Tumor Metastasis.Advanced materials (Deerfield Beach, Fla.) · 2025Article
- Effective multicolor visual biosensor for ochratoxin A detection enabled by DNAzyme catalysis and gold nanorod etching.Mikrochimica acta · 2024Article
- Development of a Dual-Readout Multicolor Immunoassay for the Rapid Analysis of Isocarbophos in Vegetable and Fruit Samples.Foods (Basel, Switzerland) · 2024Article
- Harnessing gold nanomaterials for advanced multicolor colorimetric biosensors in food hazards detection.Journal of food and drug analysis · 2024Review
- Aptasensors Based on Non-Enzymatic Peroxidase Mimics: Current Progress and Challenges.Biosensors · 2023Review
- Fluorescent Sensor Based on Magnetic Separation and Strand Displacement Amplification for the Sensitive Detection of Ochratoxin A.ACS omega · 2023Article
- Colorimetric Sensors for Chemical and Biological Sensing Applications.Sensors (Basel, Switzerland) · 2023Review
- Design of a Quencher-Free Fluorescent Aptasensor for Ochratoxin A Detection in Red Wine Based on the Guanine-Quenching Ability.Biosensors · 2022Article
- Nanomaterial-based aptamer biosensors for ochratoxin A detection: a review.Analytical and bioanalytical chemistry · 2022Review
- Advances in Colorimetric Strategies for Mycotoxins Detection: Toward Rapid Industrial Monitoring.Toxins · 2020Review
- Noble metal nanomaterial-based aptasensors for microbial toxin detection.Journal of food and drug analysis · 2020Review
- Amplified Fluorescent Aptasensor for Ochratoxin A Assay Based on Graphene Oxide and RecJToxins · 2020Article
- Gold nanorods-based multicolor immunosensor for visual detection of enterovirus 71 infection.Mikrochimica acta · 2020Article
- A colorimetric immunosensor for determination of foodborne bacteria using rotating immunomagnetic separation, gold nanorod indication, and click chemistry amplification.Mikrochimica acta · 2020Article
- Recent Progress and Development of G-Quadruplex-Based Luminescent Assays for Ochratoxin A Detection.Frontiers in chemistry · 2020Review
- A fluorometric aptamer-based assay for ochratoxin A by using exonuclease III-assisted recycling amplification.Mikrochimica acta · 2019Article
- A review on recent developments in optical and electrochemical aptamer-based assays for mycotoxins using advanced nanomaterials.Mikrochimica acta · 2019Review
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
An exonuclease-assisted multicolor aptasensor was developed for the visual detection of ochratoxin A (OTA). It is based on the etching of gold nanorods (AuNRs) mediated by a G-quadruplex-hemin DNAzyme. A DNA sequence (AG4-OTA) was designed that comprises a hemin aptamer and an OTA aptamer. OTA binds to AG4-OTA to form an antiparallel G-quadruplex, which halts its digestion by exonuclease I (Exo I) from the 3'-end of AG4-OTA. Thus, the retained hemin aptamer can bind to hemin to form a G-quadruplex-hemin DNAzyme. This DNAzyme has peroxidase-like activity that catalyzes the oxidation of 3,3',5,5'-tetramethylbenzidine (TMB) by H
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.