期刊
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
卷 14, 期 4, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1468-6996/14/4/044404
关键词
Tuberculosis diagnostics; microfluidic paper-based analytical devices; colorimetric assay
资金
- Chang Gung Memorial Hospital, Linkou [CMRPG3G0821]
- National Science Council, Taiwan [NSC 101-2113-M-005-001-MY2]
A colorimetric sensing strategy employing gold nanoparticles and a paper assay platform has been developed for tuberculosis diagnosis. Unmodified gold nanoparticles and single-stranded detection oligonucleotides are used to achieve rapid diagnosis without complicated and time-consuming thiolated or other surface-modified probe preparation processes. To eliminate the use of sophisticated equipment for data analysis, the color variance for multiple detection results was simultaneously collected and concentrated on cellulose paper with the data readout transmitted for cloud computing via a smartphone. The results show that the 2.6nM tuberculosis mycobacterium target sequences extracted from patients can easily be detected, and the turnaround time after the human DNA is extracted from clinical samples was approximately 1 h.
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