Surveilling and Tracking COVID-19 Patients Using a Portable Quantum Dot Smartphone Device.
Nano Lett
; 21(12): 5209-5216, 2021 06 23.
Article
in English
| MEDLINE | ID: covidwho-1263457
ABSTRACT
The ability to rapidly diagnose, track, and disseminate information for SARS-CoV-2 is critical to minimize its spread. Here, we engineered a portable smartphone-based quantum barcode serological assay device for real-time surveillance of patients infected with SARS-CoV-2. Our device achieved a clinical sensitivity of 90% and specificity of 100% for SARS-CoV-2, as compared to 34% and 100%, respectively, for lateral flow assays in a head-to-head comparison. The lateral flow assay misdiagnosed â¼2 out of 3 SARS-CoV-2 positive patients. Our quantum dot barcode device has â¼3 times greater clinical sensitivity because it is â¼140 times more analytically sensitive than lateral flow assays. Our device can diagnose SARS-CoV-2 at different sampling dates and infectious severity. We developed a databasing app to provide instantaneous results to inform patients, physicians, and public health agencies. This assay and device enable real-time surveillance of SARS-CoV-2 seroprevalence and potential immunity.
Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Quantum Dots
/
COVID-19
Type of study:
Diagnostic study
/
Observational study
/
Prognostic study
Limits:
Humans
Language:
English
Journal:
Nano Lett
Year:
2021
Document Type:
Article
Affiliation country:
Acs.nanolett.1c01280
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