Dual-mode visual detection strategies of viable pathogens for point-of-care testing
DC Field | Value | Language |
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dc.contributor.author | Dinh, Vu Phong | - |
dc.contributor.author | Lee, Nae Yoon | - |
dc.date.accessioned | 2023-01-21T04:40:07Z | - |
dc.date.available | 2023-01-21T04:40:07Z | - |
dc.date.created | 2023-01-21 | - |
dc.date.issued | 2023-02 | - |
dc.identifier.issn | 0956-5663 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/86743 | - |
dc.description.abstract | Here, we introduce a power-free foldable poly(methyl methacrylate) (PMMA) microdevice fully integrating DNA extraction, amplification, and visual detection, realized in novel dual modes - colorimetric and aggregate for-mation - using 4-Aminoantipyrine (4-AP) for monitoring pathogens. The microdevice contains two parts: re-action and detection zones. A sealing film was utilized to connect the two zones and make the device foldable. The FTA card was deposited in the reaction zone for DNA extraction, followed by loop-mediated isothermal amplification (LAMP) at 65 degrees C for 45 min. When the detection zone is folded toward the reaction zone, paper discs modified with 4-AP placed in the detection zone are delivered to the reaction zone. Specifically, in the presence of LAMP amplicons, 4-AP is oxidized into antipyrine red or generates aggregates by interacting with copper sulfate, forming copper hybrid nanostructure (Cu-hNs). In the absence of LAMP amplicons, 4-AP is not oxidized and maintains yellow color or fails to form aggregates. Furthermore, we introduced the ethidium homodimer-1 (EthD-1) to identify viable bacteria. EthD-1 penetrated the compromised membranes of nonviable cells and prevented further DNA amplification by intercalating with the DNA. In this way, only samples con-taining viable cells displayed color change or formed aggregates upon reaction with 4-AP. Using this method, SARS-CoV-2 RNA and Enterococcus faecium were identified by naked eye, with the limit of detection of 103 copies/mu L and 102 CFU/mL, respectively, within 60 min. The introduced microdevice can be used for rapidly monitoring viable pathogens and controlling outbreaks of infectious disease in resource-limited settings. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER ADVANCED TECHNOLOGY | - |
dc.relation.isPartOf | BIOSENSORS & BIOELECTRONICS | - |
dc.title | Dual-mode visual detection strategies of viable pathogens for point-of-care testing | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000906181500007 | - |
dc.identifier.doi | 10.1016/j.bios.2022.114904 | - |
dc.identifier.bibliographicCitation | BIOSENSORS & BIOELECTRONICS, v.221 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85142685747 | - |
dc.citation.title | BIOSENSORS & BIOELECTRONICS | - |
dc.citation.volume | 221 | - |
dc.contributor.affiliatedAuthor | Dinh, Vu Phong | - |
dc.contributor.affiliatedAuthor | Lee, Nae Yoon | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Foldable PMMA microdevice | - |
dc.subject.keywordAuthor | Dual-mode visual detection | - |
dc.subject.keywordAuthor | 4-Aminoantipyrine | - |
dc.subject.keywordAuthor | Copper hybrid nanostructure | - |
dc.subject.keywordAuthor | Viability assay | - |
dc.subject.keywordAuthor | Ethidium homodimer-1 | - |
dc.subject.keywordPlus | NUCLEIC-ACID AMPLIFICATION | - |
dc.subject.keywordPlus | MEDIATED ISOTHERMAL AMPLIFICATION | - |
dc.subject.keywordPlus | AMINO-ACID | - |
dc.subject.keywordPlus | DNA | - |
dc.subject.keywordPlus | 4-AMINOANTIPYRINE | - |
dc.subject.keywordPlus | MICRODEVICE | - |
dc.relation.journalResearchArea | Biophysics | - |
dc.relation.journalResearchArea | Biotechnology & Applied Microbiology | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalWebOfScienceCategory | Biophysics | - |
dc.relation.journalWebOfScienceCategory | Biotechnology & Applied Microbiology | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Analytical | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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