期刊
MICROCHIMICA ACTA
卷 186, 期 8, 页码 -出版社
SPRINGER WIEN
DOI: 10.1007/s00604-019-3626-z
关键词
Paper-based POCT device; Nanomaterials; Lateral flow assays; Sample pretreatment; Nanolabels
资金
- National Natural Science Foundation of China [21808132, 31700510, 21774071]
- China Postdoctoral Science Foundation [2018M633525]
- Project of Shaanxi Provincial Education department [18JK0096]
- Natural Science Basic Research Plan of Shaanxi Province [2019JQ-517]
- National Experimental Teaching Demonstration Center of Light Chemical Engineering [2018QGSJ02-10]
- Highlevel Foreign Experts Project [GD20186100425]
- Natural Science Research Foundation of Shaanxi University of Science Technology [2017BJ-35]
- Biomass Chemistry and Materials Academician Workstation Project in SUST [134090002]
- Key Scientific Research Group of Shaanxi Province [2017KCT-02]
- Key Program for Science and Technology Innovative Research Team in Shaanxi Province of China [2017KCT-22]
Paper is a widely used support for use in devices for point-of-care testing (POCT) in clinical diagnosis, food safety monitoring and environmental pollution. Paper is inexpensive, biocompatible, biodegradable and allows a sample fluid to flow by capillary force. Numerous method have been developed recently for chemical modification of papers in order to introduce different functionalities. This review (with 148 refs.) summarizes the recent progress in paper-based POCT devices. The introduction summarizes the state of the art of paper-based POCT devices and the physicochemical properties of existing unmodified materials (including cellulose, cellulose-based composites, cotton fibers, glass fibers, nitrocellulose, thread). Methods for paper modification for sample pretreatment are summarized next, with subsections on sample storage and collection, sample separation, nucleic acid extraction and sample preconcentration. Another main section covers approaches for paper modification for improving POCTs, with subsections on assays for proteins, nucleic acids, drugs, ion and organic molecules. The advantages and disadvantages of these approaches are compared. Several tables are presented that summarize the various modification techniques. A concluding section summarizes the current status, addresses challenges and gives an outlook on future perspectives of POCTs.
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