Hand-powered centrifugal microfluidic platform inspired by the spinning top for sample-to-answer diagnostics of nucleic acids.

作者: Lu Zhang , Fei Tian , Chao Liu , Qiang Feng , Tingxuan Ma

DOI: 10.1039/C7LC01234A

关键词: Nucleic acidNucleic acid quantitationLoop-mediated isothermal amplificationComputer hardwareSpinningNucleic acid amplification techniqueCentrifugeComputer scienceSample (material)Microfluidics

摘要: Point-of-care (POC), sample-to-answer and electricity-free nucleic acid diagnostic tools are vital for health care disease control in resource-limited settings where centralized medical facilities or even electric power may remain unreliable. Inspired by one of the oldest recognizable toys, spinning top, here we report a fully hand-powered centrifugal microfluidic platform diagnostics pathogenic bacteria. Assay procedures such as zeolite-based purification acids, loop-mediated isothermal amplification (LAMP) visual detection fluorescence signals integrated into single disc. A simple pull-out operation top rack customized centrifuge initiates high-speed rotation disc, resulting efficient actuation mixing preloaded sample/reagent fluids. This enables simultaneous six kinds bacteria within small disc an manner, showing great promise remote settings.

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