Rapid detection of Pseudomonas aeruginosa using a DNAzyme‐based sensor
Abstract In the present study, a DNAzyme was screened in vitro through the use of a DNA library and crude extracellular mixture (CEM) of Pseudomonas aeruginosa. Following eight rounds of selection, a DNAzyme termed PAE‐1 was obtained, which displayed high rates of cleavage with strong specificity. A...
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doaj-77c656f6fc9f4c0180c904efd1e97edf2021-07-09T14:35:59ZengWileyFood Science & Nutrition2048-71772021-07-01973873388410.1002/fsn3.2367Rapid detection of Pseudomonas aeruginosa using a DNAzyme‐based sensorMingcan Qin0Xiaoyi Ma1Shihui Fan2Hangjie Wu3Wanli Yan4Xiaopeng Tian5Jing Lu6Mingsheng Lyu7Shujun Wang8Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology Jiangsu Ocean University Lianyungang ChinaJiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology Jiangsu Ocean University Lianyungang ChinaJiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology Jiangsu Ocean University Lianyungang ChinaJiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology Jiangsu Ocean University Lianyungang ChinaJiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology Jiangsu Ocean University Lianyungang ChinaJiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology Jiangsu Ocean University Lianyungang ChinaJiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology Jiangsu Ocean University Lianyungang ChinaJiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology Jiangsu Ocean University Lianyungang ChinaJiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology Jiangsu Ocean University Lianyungang ChinaAbstract In the present study, a DNAzyme was screened in vitro through the use of a DNA library and crude extracellular mixture (CEM) of Pseudomonas aeruginosa. Following eight rounds of selection, a DNAzyme termed PAE‐1 was obtained, which displayed high rates of cleavage with strong specificity. A fluorescent biosensor was designed for the detection of P. aeruginosa in combination with the DNAzyme. A detection limit as low as 1.2 cfu/ml was observed. Using proteases and filtration, it was determined that the target was a protein with a molecular weight of 10 kDa–50 kDa. The DNAzyme was combined with a polystyrene board to construct a simple indicator plate sensor which produced a color that identified the target within 10 min. The results were reliable when tap water and food samples were tested. The present study provides a novel experimental strategy for the development of sensors based on a DNAzyme to rapidly detect P. aeruginosa in the field.https://doi.org/10.1002/fsn3.2367DNAzymePseudomonas aeruginosarapid detection |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mingcan Qin Xiaoyi Ma Shihui Fan Hangjie Wu Wanli Yan Xiaopeng Tian Jing Lu Mingsheng Lyu Shujun Wang |
spellingShingle |
Mingcan Qin Xiaoyi Ma Shihui Fan Hangjie Wu Wanli Yan Xiaopeng Tian Jing Lu Mingsheng Lyu Shujun Wang Rapid detection of Pseudomonas aeruginosa using a DNAzyme‐based sensor Food Science & Nutrition DNAzyme Pseudomonas aeruginosa rapid detection |
author_facet |
Mingcan Qin Xiaoyi Ma Shihui Fan Hangjie Wu Wanli Yan Xiaopeng Tian Jing Lu Mingsheng Lyu Shujun Wang |
author_sort |
Mingcan Qin |
title |
Rapid detection of Pseudomonas aeruginosa using a DNAzyme‐based sensor |
title_short |
Rapid detection of Pseudomonas aeruginosa using a DNAzyme‐based sensor |
title_full |
Rapid detection of Pseudomonas aeruginosa using a DNAzyme‐based sensor |
title_fullStr |
Rapid detection of Pseudomonas aeruginosa using a DNAzyme‐based sensor |
title_full_unstemmed |
Rapid detection of Pseudomonas aeruginosa using a DNAzyme‐based sensor |
title_sort |
rapid detection of pseudomonas aeruginosa using a dnazyme‐based sensor |
publisher |
Wiley |
series |
Food Science & Nutrition |
issn |
2048-7177 |
publishDate |
2021-07-01 |
description |
Abstract In the present study, a DNAzyme was screened in vitro through the use of a DNA library and crude extracellular mixture (CEM) of Pseudomonas aeruginosa. Following eight rounds of selection, a DNAzyme termed PAE‐1 was obtained, which displayed high rates of cleavage with strong specificity. A fluorescent biosensor was designed for the detection of P. aeruginosa in combination with the DNAzyme. A detection limit as low as 1.2 cfu/ml was observed. Using proteases and filtration, it was determined that the target was a protein with a molecular weight of 10 kDa–50 kDa. The DNAzyme was combined with a polystyrene board to construct a simple indicator plate sensor which produced a color that identified the target within 10 min. The results were reliable when tap water and food samples were tested. The present study provides a novel experimental strategy for the development of sensors based on a DNAzyme to rapidly detect P. aeruginosa in the field. |
topic |
DNAzyme Pseudomonas aeruginosa rapid detection |
url |
https://doi.org/10.1002/fsn3.2367 |
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