Pipette-Free and Fully Integrated Paper Device Employing DNA Extraction, Isothermal Amplification, and Carmoisine-Based Colorimetric Detection for Determining Infectious Pathogens

A pipette-free and fully integrated device that can be used to accurately recognize the presence of infectious pathogens is an important and useful tool in point-of-care testing, particularly when aiming to decrease the unpredictable threats posed by disease outbreak. In this study, a paper device i...

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Main Authors: Hanh An Nguyen, Nae Yoon Lee
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/22/9112
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author Hanh An Nguyen
Nae Yoon Lee
author_facet Hanh An Nguyen
Nae Yoon Lee
author_sort Hanh An Nguyen
collection DOAJ
description A pipette-free and fully integrated device that can be used to accurately recognize the presence of infectious pathogens is an important and useful tool in point-of-care testing, particularly when aiming to decrease the unpredictable threats posed by disease outbreak. In this study, a paper device is developed to integrate the three main processes required for detecting infectious pathogens, including DNA extraction, loop-mediated isothermal amplification (LAMP), and detection. All key reagents, including sodium dodecyl sulfate (SDS), NaOH, LAMP reagents, and carmoisine, are placed on the paper device. The paper device is operated simply via sliding and folding without using any bulky equipment, and the results can be directly observed by the naked eye. The optimized concentrations of sodium dodecyl sulfate (SDS), sodium hydroxide (NaOH), and carmoisine were found to be 0.1%, 0.1 M, and 0.5 mg/mL, respectively. The paper device was used to detect <i>Enterococcus faecium</i> at concentrations as low as 10<sup>2</sup> CFU/mL within 60 min. Also, <i>E. faecium</i> spiked in milk was successfully detected using the paper device, demonstrating the feasible application in real sample analysis.
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spelling doaj.art-16c389c78e86422e99be743075f624a72023-11-24T15:05:23ZengMDPI AGSensors1424-82202023-11-012322911210.3390/s23229112Pipette-Free and Fully Integrated Paper Device Employing DNA Extraction, Isothermal Amplification, and Carmoisine-Based Colorimetric Detection for Determining Infectious PathogensHanh An Nguyen0Nae Yoon Lee1Department of BioNano Technology, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Republic of KoreaDepartment of BioNano Technology, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Republic of KoreaA pipette-free and fully integrated device that can be used to accurately recognize the presence of infectious pathogens is an important and useful tool in point-of-care testing, particularly when aiming to decrease the unpredictable threats posed by disease outbreak. In this study, a paper device is developed to integrate the three main processes required for detecting infectious pathogens, including DNA extraction, loop-mediated isothermal amplification (LAMP), and detection. All key reagents, including sodium dodecyl sulfate (SDS), NaOH, LAMP reagents, and carmoisine, are placed on the paper device. The paper device is operated simply via sliding and folding without using any bulky equipment, and the results can be directly observed by the naked eye. The optimized concentrations of sodium dodecyl sulfate (SDS), sodium hydroxide (NaOH), and carmoisine were found to be 0.1%, 0.1 M, and 0.5 mg/mL, respectively. The paper device was used to detect <i>Enterococcus faecium</i> at concentrations as low as 10<sup>2</sup> CFU/mL within 60 min. Also, <i>E. faecium</i> spiked in milk was successfully detected using the paper device, demonstrating the feasible application in real sample analysis.https://www.mdpi.com/1424-8220/23/22/9112Pipette-free and fully integrated paper devicecarmoisine-based colorimetric detection<i>Enterococcus faecium</i>point-of-care testing
spellingShingle Hanh An Nguyen
Nae Yoon Lee
Pipette-Free and Fully Integrated Paper Device Employing DNA Extraction, Isothermal Amplification, and Carmoisine-Based Colorimetric Detection for Determining Infectious Pathogens
Sensors
Pipette-free and fully integrated paper device
carmoisine-based colorimetric detection
<i>Enterococcus faecium</i>
point-of-care testing
title Pipette-Free and Fully Integrated Paper Device Employing DNA Extraction, Isothermal Amplification, and Carmoisine-Based Colorimetric Detection for Determining Infectious Pathogens
title_full Pipette-Free and Fully Integrated Paper Device Employing DNA Extraction, Isothermal Amplification, and Carmoisine-Based Colorimetric Detection for Determining Infectious Pathogens
title_fullStr Pipette-Free and Fully Integrated Paper Device Employing DNA Extraction, Isothermal Amplification, and Carmoisine-Based Colorimetric Detection for Determining Infectious Pathogens
title_full_unstemmed Pipette-Free and Fully Integrated Paper Device Employing DNA Extraction, Isothermal Amplification, and Carmoisine-Based Colorimetric Detection for Determining Infectious Pathogens
title_short Pipette-Free and Fully Integrated Paper Device Employing DNA Extraction, Isothermal Amplification, and Carmoisine-Based Colorimetric Detection for Determining Infectious Pathogens
title_sort pipette free and fully integrated paper device employing dna extraction isothermal amplification and carmoisine based colorimetric detection for determining infectious pathogens
topic Pipette-free and fully integrated paper device
carmoisine-based colorimetric detection
<i>Enterococcus faecium</i>
point-of-care testing
url https://www.mdpi.com/1424-8220/23/22/9112
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AT naeyoonlee pipettefreeandfullyintegratedpaperdeviceemployingdnaextractionisothermalamplificationandcarmoisinebasedcolorimetricdetectionfordetermininginfectiouspathogens