期刊
ADVANCED FUNCTIONAL MATERIALS
卷 30, 期 29, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201906713
关键词
bioaffinity sensors; digital health; flexible electronics; point-of-care testing; diagnostics; wearable sensors
类别
资金
- Rothenberg Innovation Initiative (RI2) program at California Institute of Technology (Caltech)
- Caltech-City of Hope Biomedical Research Initiative
- Carver Mead New Adventures Fund
- American Heart Association [19TPA34850157]
- National Science Scholarship (NSS) from the Agency of Science Technology and Research (A*STAR) Singapore
Digital health facilitated by wearable/portable electronics and big data analytics holds great potential in empowering patients with real-time diagnostics tools and information. The detection of a majority of biomarkers at trace levels in body fluids using mobile health (mHealth) devices requires bioaffinity sensors that rely on bioreceptors for specific recognition. Portable point-of-care testing (POCT) bioaffinity sensors have demonstrated their broad utility for diverse applications ranging from health monitoring to disease diagnosis and management. In addition, flexible and stretchable electronics-enabled wearable platforms have emerged in the past decade as an interesting approach in the ambulatory collection of real-time data. Herein, the technological advancements of mHealth bioaffinity sensors evolved from laboratory assays to portable POCT devices, and to wearable electronics, are synthesized. The involved recognition events in the mHealth affinity biosensors enabled by bioreceptors (e.g., antibodies, DNAs, aptamers, and molecularly imprinted polymers) are discussed along with their transduction mechanisms (e.g., electrochemical and optical) and system-level integration technologies. Finally, an outlook of the field is provided and key technological bottlenecks to overcome identified, in order to achieve a new sensing paradigm in wearable bioaffinity platforms.
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