1. An integrated and paper-based microfluidic system employing LAMP-CRISPR and equipped with a portable device for simultaneous detection of pathogens.
- Author
-
Cui S, Wang K, Yang Y, Lv X, and Li X
- Subjects
- CRISPR-Cas Systems, Humans, Molecular Diagnostic Techniques instrumentation, Molecular Diagnostic Techniques methods, Lab-On-A-Chip Devices, Microfluidic Analytical Techniques instrumentation, Microfluidic Analytical Techniques methods, Bacteria isolation & purification, Bacteria genetics, Equipment Design, Limit of Detection, Paper, Nucleic Acid Amplification Techniques methods, Nucleic Acid Amplification Techniques instrumentation
- Abstract
Point-of-care testing methods are essential for the large-scale diagnosis and monitoring of bacterial infections. This study introduces an integrated platform designed for the simultaneous detection of pathogenic bacteria. Users can simply inject samples into the system, which then conducts the entire procedure in a fully automated manner, eliminating the need for external power sources, all within 60 min or less. The innovative paper-based microfluidic system is capable of lysing bacteria and integrating loop-mediated isothermal amplification (LAMP) with the CRISPR/Cas12a system, achieving this with minimal reagent usage on a single piece of paper. The reaction reagents are pre-fabricated as freeze-dried powder on the paper, allowing for long-term storage. A portable and cost-effective detection device has been designed to provide stable temperature control and analyze fluorescent signals, complementing the paper-based microfluidic system. This compact device measures 150 × 150 × 100 mm, weighs less than 1.8 kg, has an average power consumption of under 15 W, and supports external power supply. The device utilizes non-contact QR codes for information transmission, ensuring functionality even in areas without Internet connectivity. This platform is capable of simultaneously detecting five typical pathogenic microorganisms, with a detection limit of 1 copy/μL. It boasts several advantages, including miniaturization, lightweight design, low power consumption, portability, affordability, rapid detection, and ease of operation, making it highly suitable for on-site detection., Competing Interests: Declarations. Conflict of interest: The authors declare no competing interests., (© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.)
- Published
- 2025
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