Aptamer-Based Biosensors for Environmental Monitoring

Due to their relative synthetic and chemical simplicity compared to antibodies, aptamers afford enhanced stability and functionality for the detection of environmental contaminants and for use in environmental monitoring. Furthermore, nucleic acid aptamers can be selected for toxic targets which may...

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Main Authors: Erin M. McConnell, Julie Nguyen, Yingfu Li
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-05-01
Series:Frontiers in Chemistry
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fchem.2020.00434/full
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author Erin M. McConnell
Julie Nguyen
Yingfu Li
author_facet Erin M. McConnell
Julie Nguyen
Yingfu Li
author_sort Erin M. McConnell
collection DOAJ
description Due to their relative synthetic and chemical simplicity compared to antibodies, aptamers afford enhanced stability and functionality for the detection of environmental contaminants and for use in environmental monitoring. Furthermore, nucleic acid aptamers can be selected for toxic targets which may prove difficult for antibody development. Of particular relevance, aptamers have been selected and used to develop biosensors for environmental contaminants such as heavy metals, small-molecule agricultural toxins, and water-borne bacterial pathogens. This review will focus on recent aptamer-based developments for the detection of diverse environmental contaminants. Within this domain, aptamers have been combined with other technologies to develop biosensors with various signal outputs. The goal of much of this work is to develop cost-effective, user-friendly detection methods that can complement or replace traditional environmental monitoring strategies. This review will highlight recent examples in this area. Additionally, with innovative developments such as wearable devices, sentinel materials, and lab-on-a-chip designs, there exists significant potential for the development of multifunctional aptamer-based biosensors for environmental monitoring. Examples of these technologies will also be highlighted. Finally, a critical perspective on the field, and thoughts on future research directions will be offered.
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spelling doaj.art-82f9a6df816c46bba11d7743e60f25b82022-12-21T18:52:43ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462020-05-01810.3389/fchem.2020.00434539439Aptamer-Based Biosensors for Environmental MonitoringErin M. McConnellJulie NguyenYingfu LiDue to their relative synthetic and chemical simplicity compared to antibodies, aptamers afford enhanced stability and functionality for the detection of environmental contaminants and for use in environmental monitoring. Furthermore, nucleic acid aptamers can be selected for toxic targets which may prove difficult for antibody development. Of particular relevance, aptamers have been selected and used to develop biosensors for environmental contaminants such as heavy metals, small-molecule agricultural toxins, and water-borne bacterial pathogens. This review will focus on recent aptamer-based developments for the detection of diverse environmental contaminants. Within this domain, aptamers have been combined with other technologies to develop biosensors with various signal outputs. The goal of much of this work is to develop cost-effective, user-friendly detection methods that can complement or replace traditional environmental monitoring strategies. This review will highlight recent examples in this area. Additionally, with innovative developments such as wearable devices, sentinel materials, and lab-on-a-chip designs, there exists significant potential for the development of multifunctional aptamer-based biosensors for environmental monitoring. Examples of these technologies will also be highlighted. Finally, a critical perspective on the field, and thoughts on future research directions will be offered.https://www.frontiersin.org/article/10.3389/fchem.2020.00434/fullaptamersbiosensorsenvironmental monitoringwater qualitybacteriaheavy metals
spellingShingle Erin M. McConnell
Julie Nguyen
Yingfu Li
Aptamer-Based Biosensors for Environmental Monitoring
Frontiers in Chemistry
aptamers
biosensors
environmental monitoring
water quality
bacteria
heavy metals
title Aptamer-Based Biosensors for Environmental Monitoring
title_full Aptamer-Based Biosensors for Environmental Monitoring
title_fullStr Aptamer-Based Biosensors for Environmental Monitoring
title_full_unstemmed Aptamer-Based Biosensors for Environmental Monitoring
title_short Aptamer-Based Biosensors for Environmental Monitoring
title_sort aptamer based biosensors for environmental monitoring
topic aptamers
biosensors
environmental monitoring
water quality
bacteria
heavy metals
url https://www.frontiersin.org/article/10.3389/fchem.2020.00434/full
work_keys_str_mv AT erinmmcconnell aptamerbasedbiosensorsforenvironmentalmonitoring
AT julienguyen aptamerbasedbiosensorsforenvironmentalmonitoring
AT yingfuli aptamerbasedbiosensorsforenvironmentalmonitoring