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A 3D-printed magnetic digital microfluidic diagnostic platform for rapid colorimetric sensing of carbapenemase-producing Enterobacteriaceae

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Microsystems & Nanoengineering 2021年第3期7卷 173-184页

作者： Pojchanun Kanitthamniyom Pei Yun Hon Aiwu Zhou mohammad yazid abdad Zhi Yun Leow Nurhidayah Binte Mohamed yazid Vanessa Lim Wei Xun Shawn Vasoo Yi Zhang Singapore Centre for 3D Printing School of Mechanical and Aerospace EngineeringNanyang Technological UniversitySingapore CitySingapore National Center for Infectious Disease Tan Tock Seng HospitalSingapore CitySingapore Lee Kong Chian School of Medicine Nanyang Technological UniversitySingapore CitySingapore

Carbapenemase-producing Enterobacteriaceae(CPE)are a group of drug-resistant Gram-negative pathogens that are classified as a critical threat by the World Health Organization(WHO).Conventional methods of detecting antibiotic-resistant pathogens do not assess the resistance mechanism and are often time-consuming and *** have developed a magnetic digital microfluidic(MDM)platform,known as MDM Carba,for the identification of CPE by measuring their ability to hydrolyze carbapenem *** Carba offers the ability to rapidly test CPE and reduce the amount of reagents used compared with conventional phenotypic *** the MDM Carba platform,tests are performed in droplets that function as reaction chambers,and fluidic operations are accomplished by manipulating these droplets with magnetic *** simple droplet-based magnetic fluidic operation allows easy system automation and simplified hands-on *** of the unique“power-free”operation of MDM technology,the MDM Carba platform can also be operated manually,showing great potential for point-of-care testing in resource-limited *** tested 27 bacterial isolates on the MDM Carba platform,and the results showed sensitivity and specificity that were comparable to those of the widely used Carba NP *** Carba may shorten the overall turnaround time for CPE identification,thereby enabling more timely clinical decisions for better clinical *** Carba is a technological platform that can be further developed to improve diagnostics for other types of antibiotic resistance with minor modifications.

关键词： thereby operations consuming

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