Fluorogenic Aptasensors with Small Molecules

Aptamers are single-stranded DNA or RNA molecules that can be identified through an iterative in vitro selection–amplification process. Among them, fluorogenic aptamers in response to small molecules have been of great interest in biosensing and bioimaging due to their rapid fluorescence turn-on sig...

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Main Authors: Eun-Song Lee, Jeong Min Lee, Hea-Jin Kim, Young-Pil Kim
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Chemosensors
Subjects:
Online Access:https://www.mdpi.com/2227-9040/9/3/54
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author Eun-Song Lee
Jeong Min Lee
Hea-Jin Kim
Young-Pil Kim
author_facet Eun-Song Lee
Jeong Min Lee
Hea-Jin Kim
Young-Pil Kim
author_sort Eun-Song Lee
collection DOAJ
description Aptamers are single-stranded DNA or RNA molecules that can be identified through an iterative in vitro selection–amplification process. Among them, fluorogenic aptamers in response to small molecules have been of great interest in biosensing and bioimaging due to their rapid fluorescence turn-on signals with high target specificity and low background noise. In this review, we report recent advances in fluorogenic aptasensors and their applications to in vitro diagnosis and cellular imaging. These aptasensors modulated by small molecules have been implemented in different modalities that include duplex or molecular beacon-type aptasensors, aptazymes, and fluorogen-activating aptamer reporters. We highlight the working principles, target molecules, modifications, and performance characteristics of fluorogenic aptasensors, and discuss their potential roles in the field of biosensor and bioimaging with future directions and challenges.
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spelling doaj.art-4a4cedc092e4477c9a882f71076633b32023-11-21T09:55:15ZengMDPI AGChemosensors2227-90402021-03-01935410.3390/chemosensors9030054Fluorogenic Aptasensors with Small MoleculesEun-Song Lee0Jeong Min Lee1Hea-Jin Kim2Young-Pil Kim3Department of Life Science, Hanyang University, Seoul 04763, KoreaDepartment of Life Science, Hanyang University, Seoul 04763, KoreaDepartment of Life Science, Hanyang University, Seoul 04763, KoreaDepartment of Life Science, Hanyang University, Seoul 04763, KoreaAptamers are single-stranded DNA or RNA molecules that can be identified through an iterative in vitro selection–amplification process. Among them, fluorogenic aptamers in response to small molecules have been of great interest in biosensing and bioimaging due to their rapid fluorescence turn-on signals with high target specificity and low background noise. In this review, we report recent advances in fluorogenic aptasensors and their applications to in vitro diagnosis and cellular imaging. These aptasensors modulated by small molecules have been implemented in different modalities that include duplex or molecular beacon-type aptasensors, aptazymes, and fluorogen-activating aptamer reporters. We highlight the working principles, target molecules, modifications, and performance characteristics of fluorogenic aptasensors, and discuss their potential roles in the field of biosensor and bioimaging with future directions and challenges.https://www.mdpi.com/2227-9040/9/3/54aptameraptasensoraptazymefluorogensmall moleculeRNA reporter
spellingShingle Eun-Song Lee
Jeong Min Lee
Hea-Jin Kim
Young-Pil Kim
Fluorogenic Aptasensors with Small Molecules
Chemosensors
aptamer
aptasensor
aptazyme
fluorogen
small molecule
RNA reporter
title Fluorogenic Aptasensors with Small Molecules
title_full Fluorogenic Aptasensors with Small Molecules
title_fullStr Fluorogenic Aptasensors with Small Molecules
title_full_unstemmed Fluorogenic Aptasensors with Small Molecules
title_short Fluorogenic Aptasensors with Small Molecules
title_sort fluorogenic aptasensors with small molecules
topic aptamer
aptasensor
aptazyme
fluorogen
small molecule
RNA reporter
url https://www.mdpi.com/2227-9040/9/3/54
work_keys_str_mv AT eunsonglee fluorogenicaptasensorswithsmallmolecules
AT jeongminlee fluorogenicaptasensorswithsmallmolecules
AT heajinkim fluorogenicaptasensorswithsmallmolecules
AT youngpilkim fluorogenicaptasensorswithsmallmolecules