Design of a Quencher-Free Fluorescent Aptasensor for Ochratoxin A Detection in Red Wine Based on the Guanine-Quenching Ability

This study describes a quencher-free fluorescent aptasensor for ochratoxin A (OTA) detection using the specific quenching ability of guanine for fluorescein (FAM) molecules based on photo-induced electron transfer (PIET). In this strategy, OTA is detected by monitoring the fluorescence change induce...

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Bibliographic Details

Published in:	Biosensors
Main Authors:	Cheng Yang, Fathimath Abbas, Amina Rhouati, Yingying Sun, Xiaolin Chu, Shengnan Cui, Bingbing Sun, Changying Xue
Format:	Article
Language:	English
Published:	MDPI AG 2022-05-01
Subjects:	aptasensor quencher-free photo-induced electron transfer guanine-quenching fluorescence ochratoxin A
Online Access:	https://www.mdpi.com/2079-6374/12/5/297