A Portable Droplet Magnetofluidic Device for Point-of-Care Detection of Multidrug-Resistant Candida auris.
A Portable Droplet Magnetofluidic Device for Point-of-Care Detection of Multidrug-Resistant Candida auris.
复制标题
一种可移植的液滴磁磁体装置,用于耐多药念珠菌的护理点检测。
DOI:
10.3389/fbioe.2022.826694
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发表时间:
2022
影响因子:
5.7
通讯作者:
Wang, Tza-Huei
中科院分区:
文献类型:
--
作者:
Lee, Pei-Wei;Totten, Marissa;Chen, Liben;Chen, Fan-En;Trick, Alexander Y.;Shah, Kushagra;Ngo, Hoan Thanh;Jin, Mei;Hsieh, Kuangwen;Zhang, Sean X.;Wang, Tza-Huei
关键词:
Candida auris is an emerging multidrug-resistant fungal pathogen that can cause severe and deadly infections. To date, C. auris has spurred outbreaks in healthcare settings in thirty-three countries across five continents. To control and potentially prevent its spread, there is an urgent need for point-of-care (POC) diagnostics that can rapidly screen patients, close patient contacts, and surveil environmental sources. Droplet magnetofluidics (DM), which leverages nucleic acid-binding magnetic beads for realizing POC-amenable nucleic acid detection platforms, offers a promising solution. Herein, we report the first DM device—coined POC.auris—for POC detection of C. auris. As part of POC.auris, we have incorporated a handheld cell lysis module that lyses C. auris cells with 2 min hands-on time. Subsequently, within the palm-sized and automated DM device, C. auris and control DNA are magnetically extracted and purified by a motorized magnetic arm and finally amplified via a duplex real-time quantitative PCR assay by a miniaturized rapid PCR module and a miniaturized fluorescence detector—all in ≤30 min. For demonstration, we use POC.auris to detect C. auris isolates from 3 major clades, with no cross reactivity against other Candida species and a limit of detection of ∼300 colony forming units per mL. Taken together, POC.auris presents a potentially useful tool for combating C. auris.
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